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  <xs:element id="trda_RevenueRemainingPerformanceObligationVariableConsiderationAmount" abstract="false" name="RevenueRemainingPerformanceObligationVariableConsiderationAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="trda_ContractWithCustomerPremium" abstract="false" name="ContractWithCustomerPremium" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="trda_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimatedCosts" abstract="false" name="ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimatedCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="trda_UnvestedSharesFromEarlyExercisesMember" abstract="true" name="UnvestedSharesFromEarlyExercisesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="trda_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_ENTR60144Member" abstract="true" name="ENTR60144Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_ENTR60145Member" abstract="true" name="ENTR60145Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_ENTR60150Member" abstract="true" name="ENTR60150Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_ENTR60151Member" abstract="true" name="ENTR60151Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_CollaborationServicesMember" abstract="true" name="CollaborationServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_OtherPreclinicalAndDiscoveryMember" abstract="true" name="OtherPreclinicalAndDiscoveryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_PersonnelRelatedIncludingStockBasedCompensationMember" abstract="true" name="PersonnelRelatedIncludingStockBasedCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_FacilityRelatedAndOtherMember" abstract="true" name="FacilityRelatedAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="trda_NatarajanSethuramanMember" abstract="true" name="NatarajanSethuramanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
