<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 11-August-2022 [09:16:21] {PM}-->
<schema targetNamespace="http://www.businesswire.com/20220630" elementFormDefault="qualified" xmlns:prok="http://www.businesswire.com/20220630" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2022" xmlns:country="http://xbrl.sec.gov/country/2022" xmlns:currency="http://xbrl.sec.gov/currency/2022" xmlns:dei="http://xbrl.sec.gov/dei/2022" xmlns:exch="http://xbrl.sec.gov/exch/2022" xmlns:naics="http://xbrl.sec.gov/naics/2022" xmlns:sic="http://xbrl.sec.gov/sic/2022" xmlns:us-types="http://fasb.org/us-types/2022" xmlns:stpr="http://xbrl.sec.gov/stpr/2022" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:srt="http://fasb.org/srt/2022" xmlns:srt-types="http://fasb.org/srt-types/2022" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21">
<annotation>
<appinfo>
<link:roleType roleURI="http://www.businesswire.com/role/CoverPage" id="CoverPage">
<link:definition>1001 - Document - Cover Page</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CondensedConsolidatedBalanceSheets" id="CondensedConsolidatedBalanceSheets">
<link:definition>1002 - Statement - Condensed Consolidated Balance Sheets</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CondensedConsolidatedBalanceSheetsParenthetical" id="CondensedConsolidatedBalanceSheetsParenthetical">
<link:definition>1003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CondensedConsolidatedStatementsOfOperations" id="CondensedConsolidatedStatementsOfOperations">
<link:definition>1004 - Statement - Condensed Consolidated Statements of Operations</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CondensedConsolidatedStatementsOfChangesInTemporaryEquityAndPermanentDeficitEquity" id="CondensedConsolidatedStatementsOfChangesInTemporaryEquityAndPermanentDeficitEquity">
<link:definition>1005 - Statement - Condensed Consolidated Statements of Changes In Temporary Equity And Permanent (Deficit) Equity</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CondensedConsolidatedStatementsOfCashFlows" id="CondensedConsolidatedStatementsOfCashFlows">
<link:definition>1006 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/DescriptionOfOrganizationBusinessOperationsAndGoingConcern" id="DescriptionOfOrganizationBusinessOperationsAndGoingConcern">
<link:definition>1007 - Disclosure - Description Of Organization, Business Operations And Going Concern</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
<link:definition>1008 - Disclosure - Summary of Significant Accounting Policies</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/InitialPublicOffering" id="InitialPublicOffering">
<link:definition>1009 - Disclosure - Initial Public Offering</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/PrivatePlacement" id="PrivatePlacement">
<link:definition>1010 - Disclosure - Private Placement</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/RelatedPartyTransactions" id="RelatedPartyTransactions">
<link:definition>1011 - Disclosure - Related Party Transactions</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
<link:definition>1012 - Disclosure - Commitments and Contingencies</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/TemporaryEquityAndPermanentDeficit" id="TemporaryEquityAndPermanentDeficit">
<link:definition>1013 - Disclosure - Temporary Equity and Permanent Deficit</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/FairValueMeasurements" id="FairValueMeasurements">
<link:definition>1014 - Disclosure - Fair Value Measurements</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SubsequentEvents" id="SubsequentEvents">
<link:definition>1015 - Disclosure - Subsequent Events</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
<link:definition>1016 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
<link:definition>1017 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
<link:definition>1018 - Disclosure - Fair Value Measurements (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/DescriptionOfOrganizationBusinessOperationsAndGoingConcernAdditionalInformationDetail" id="DescriptionOfOrganizationBusinessOperationsAndGoingConcernAdditionalInformationDetail">
<link:definition>1019 - Disclosure - Description Of Organization, Business Operations And Going Concern - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" id="SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail">
<link:definition>1020 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfClassAOrdinarySharesReflectedInTheBalanceSheetsDetail" id="SummaryOfSignificantAccountingPoliciesScheduleOfClassAOrdinarySharesReflectedInTheBalanceSheetsDetail">
<link:definition>1021 - Disclosure - Summary of Significant Accounting Policies - Schedule of Class A Ordinary Shares Reflected in the Balance Sheets (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfCalculationOfBasicAndDilutedNetIncomeLossPerOrdinaryShareDetail" id="SummaryOfSignificantAccountingPoliciesScheduleOfCalculationOfBasicAndDilutedNetIncomeLossPerOrdinaryShareDetail">
<link:definition>1022 - Disclosure - Summary of Significant Accounting Policies - Schedule of Calculation of Basic and Diluted Net Income (Loss) per Ordinary Share (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/InitialPublicOfferingAdditionalInformationDetail" id="InitialPublicOfferingAdditionalInformationDetail">
<link:definition>1023 - Disclosure - Initial Public Offering - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/PrivatePlacementAdditionalInformationDetail" id="PrivatePlacementAdditionalInformationDetail">
<link:definition>1024 - Disclosure - Private Placement - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/RelatedPartyTransactionsAdditionalInformationDetail" id="RelatedPartyTransactionsAdditionalInformationDetail">
<link:definition>1025 - Disclosure - Related Party Transactions - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/CommitmentsAndContingenciesAdditionalInformationDetail" id="CommitmentsAndContingenciesAdditionalInformationDetail">
<link:definition>1026 - Disclosure - Commitments and Contingencies - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/TemporaryEquityAndPermanentDeficitAdditionalInformationDetail" id="TemporaryEquityAndPermanentDeficitAdditionalInformationDetail">
<link:definition>1027 - Disclosure - Temporary Equity and Permanent Deficit - Additional Information (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.businesswire.com/role/FairValueMeasurementsSummaryOfAssetsThatAreMeasuredAtFairValueOnARecurringBasisDetail" id="FairValueMeasurementsSummaryOfAssetsThatAreMeasuredAtFairValueOnARecurringBasisDetail">
<link:definition>1028 - Disclosure - Fair Value Measurements - Summary of Assets that are Measured at Fair Value on a Recurring Basis (Detail)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:linkbaseRef xlink:type="simple" xlink:href="prok-20220630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="prok-20220630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="prok-20220630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="prok-20220630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
</appinfo>
</annotation>
<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
<import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
<import namespace="http://fasb.org/us-gaap/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd" />
<import namespace="http://xbrl.sec.gov/country/2022" schemaLocation="https://xbrl.sec.gov/country/2022/country-2022.xsd" />
<import namespace="http://xbrl.sec.gov/currency/2022" schemaLocation="https://xbrl.sec.gov/currency/2022/currency-2022.xsd" />
<import namespace="http://xbrl.sec.gov/exch/2022" schemaLocation="https://xbrl.sec.gov/exch/2022/exch-2022.xsd" />
<import namespace="http://xbrl.sec.gov/naics/2022" schemaLocation="https://xbrl.sec.gov/naics/2022/naics-2022.xsd" />
<import namespace="http://xbrl.sec.gov/sic/2022" schemaLocation="https://xbrl.sec.gov/sic/2022/sic-2022.xsd" />
<import namespace="http://xbrl.sec.gov/stpr/2022" schemaLocation="https://xbrl.sec.gov/stpr/2022/stpr-2022.xsd" />
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
<import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd" />
<import namespace="http://fasb.org/us-types/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-types-2022.xsd" />
<import namespace="http://fasb.org/srt-types/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-types-2022.xsd" />
<import namespace="http://fasb.org/srt/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd" />
<import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
<element name="PrepaidInsuranceNonCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_PrepaidInsuranceNonCurrent" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="AccruedExpensesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedExpensesCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="NotesPayableRelatedPartyClassifiedCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_NotesPayableRelatedPartyClassifiedCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="DeferredUnderwritingCommissions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_DeferredUnderwritingCommissions" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="RemeasurementOfOrdinarySharesToRedemptionValueTemporaryEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_RemeasurementOfOrdinarySharesToRedemptionValueTemporaryEquity" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FormationCostsPaidBySponsorInExchangeForIssuanceOfOrdinaryShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_FormationCostsPaidBySponsorInExchangeForIssuanceOfOrdinaryShares" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="IncreaseDecreaseInAdvancesFromRelatedParty" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_IncreaseDecreaseInAdvancesFromRelatedParty" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="OfferingCostsIncludedInAccruedOfferingCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_OfferingCostsIncludedInAccruedOfferingCosts" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="RemeasurementOfClassAOrdinarySharesToRedemptionValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_RemeasurementOfClassAOrdinarySharesToRedemptionValue" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="InitialPublicOfferingDisclosureTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_InitialPublicOfferingDisclosureTextBlock" substitutionGroup="xbrli:item" />
<element name="PrivatePlacementAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_PrivatePlacementAbstract" substitutionGroup="xbrli:item" />
<element name="PrivatePlacementDisclosureTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_PrivatePlacementDisclosureTextBlock" substitutionGroup="xbrli:item" />
<element name="EmergingGrowthCompanyStatusPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_EmergingGrowthCompanyStatusPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="DeferredOfferingCostsPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_DeferredOfferingCostsPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="TemporaryEquityPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_TemporaryEquityPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="AccruedExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_AccruedExpensesPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="DescriptionOfOrganizationAndBusinessOperationsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_DescriptionOfOrganizationAndBusinessOperationsTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="DescriptionOfOrganizationAndBusinessOperationsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_DescriptionOfOrganizationAndBusinessOperationsLineItems" substitutionGroup="xbrli:item" />
<element name="TransactionCostsIncurredInConnectionWithInitialPublicOffering" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_TransactionCostsIncurredInConnectionWithInitialPublicOffering" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DeferredUnderwritingFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_DeferredUnderwritingFees" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="UnderwritingFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_UnderwritingFee" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="WorkingCapital" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_WorkingCapital" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="PaymentOfAmountFromTheTrustAccountToHolders" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_PaymentOfAmountFromTheTrustAccountToHolders" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AmountHeldInTrustAccount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AmountHeldInTrustAccount" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="RestrictedStockRightsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_RestrictedStockRightsMember" substitutionGroup="xbrli:item" />
<element name="ProkidneyLpMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_ProkidneyLpMember" substitutionGroup="xbrli:item" />
<element name="SharePriceRangeAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_SharePriceRangeAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="SharePriceRangeDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_SharePriceRangeDomain" substitutionGroup="xbrli:item" />
<element name="PipeInvestorsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_PipeInvestorsMember" substitutionGroup="xbrli:item" />
<element name="AccountingPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AccountingPoliciesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="AccountingPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AccountingPoliciesLineItems" substitutionGroup="xbrli:item" />
<element name="AccruedPrintingExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedPrintingExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccountingFeePayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccountingFeePayable" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="BusinessCombinationAccruedConsultingExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_BusinessCombinationAccruedConsultingExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedDueDiligenceExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedDueDiligenceExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedRegulatoryFilingFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedRegulatoryFilingFee" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedAccountingExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedAccountingExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedLegalExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AccruedLegalExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="BusinessCombinationAccruedLegalExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_BusinessCombinationAccruedLegalExpense" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="TemporaryEquityIssaunceCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_TemporaryEquityIssaunceCosts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="RemeasurementOfCarryingValueToRedemptionValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_RemeasurementOfCarryingValueToRedemptionValue" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="EarningsPerShareBasicAndDilutedTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_EarningsPerShareBasicAndDilutedTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="EarningsPerShareBasicAndDilutedLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_EarningsPerShareBasicAndDilutedLineItems" substitutionGroup="xbrli:item" />
<element name="BasicAndDilutedEarningsPerShareOtherDisclosuresAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_BasicAndDilutedEarningsPerShareOtherDisclosuresAbstract" substitutionGroup="xbrli:item" />
<element name="WaitingPeriodAfterWhichTheShareTradingDaysAreConsidered" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_WaitingPeriodAfterWhichTheShareTradingDaysAreConsidered" substitutionGroup="xbrli:item" />
<element name="NumberOfConsecutiveTradingDaysForDeterminingTheSharePrice" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_NumberOfConsecutiveTradingDaysForDeterminingTheSharePrice" substitutionGroup="xbrli:item" />
<element name="SharesNoLongerSubjectToForfeiture" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_SharesNoLongerSubjectToForfeiture" substitutionGroup="xbrli:item" />
<element name="WorkingCapitalLoansConvertibleIntoEquityWarrants" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_WorkingCapitalLoansConvertibleIntoEquityWarrants" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedInPeriodFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedInPeriodFairValue" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AdvancesPayableToRelatedPartyCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_AdvancesPayableToRelatedPartyCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="NumberOfTradingDaysForDeterminingTheSharePrice" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_NumberOfTradingDaysForDeterminingTheSharePrice" substitutionGroup="xbrli:item" />
<element name="FounderSharesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_FounderSharesMember" substitutionGroup="xbrli:item" />
<element name="BasisAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_BasisAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="BasisDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_BasisDomain" substitutionGroup="xbrli:item" />
<element name="RestrictionOnTransferOfSponsorSharesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_RestrictionOnTransferOfSponsorSharesMember" substitutionGroup="xbrli:item" />
<element name="FounderMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_FounderMember" substitutionGroup="xbrli:item" />
<element name="SponsorMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_SponsorMember" substitutionGroup="xbrli:item" />
<element name="AdministrationAndSupportServicesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AdministrationAndSupportServicesMember" substitutionGroup="xbrli:item" />
<element name="AdvanceFromRelatedPartyLoanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AdvanceFromRelatedPartyLoanMember" substitutionGroup="xbrli:item" />
<element name="PromissoryNoteMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_PromissoryNoteMember" substitutionGroup="xbrli:item" />
<element name="PreIpoSponsorPromissoryNoteMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_PreIpoSponsorPromissoryNoteMember" substitutionGroup="xbrli:item" />
<element name="AgreementAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AgreementAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="AgreementDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_AgreementDomain" substitutionGroup="xbrli:item" />
<element name="IndependentDirectorsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_IndependentDirectorsMember" substitutionGroup="xbrli:item" />
<element name="DirectorRestrictedStockUnitAwardAgreementMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="prok_DirectorRestrictedStockUnitAwardAgreementMember" substitutionGroup="xbrli:item" />
<element name="NumberOfSharesOfCommonStockCommittedToSettleOnADateFollowingTheYearBusinessCombinationOccurs" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="prok_NumberOfSharesOfCommonStockCommittedToSettleOnADateFollowingTheYearBusinessCombinationOccurs" substitutionGroup="xbrli:item" />
<element name="PercentOfFoundersSharesToCompanysIssuedAndOutstandingOrdinaryShares" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_PercentOfFoundersSharesToCompanysIssuedAndOutstandingOrdinaryShares" substitutionGroup="xbrli:item" />
<element name="MarketableSecuritiesHeldToMaturityFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="prok_MarketableSecuritiesHeldToMaturityFairValueDisclosure" substitutionGroup="xbrli:item" xbrli:balance="debit" />
</schema>
