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  <element name="ScheduleOfPropertyPlantAndEquipmentUsefulLifeTableTextBlock" id="enta_ScheduleOfPropertyPlantAndEquipmentUsefulLifeTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfQuarterlyFinancialInformationLineItems" id="enta_ScheduleOfQuarterlyFinancialInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfQuarterlyFinancialInformationTable" id="enta_ScheduleOfQuarterlyFinancialInformationTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfShareBasedCompensationOptionsExercisedGrantedTableTextBlock" id="enta_ScheduleOfShareBasedCompensationOptionsExercisedGrantedTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesOneNonConvertiblePreferredStockMember" id="enta_SeriesOneNonConvertiblePreferredStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateGrantDateFairValue" id="enta_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateGrantDateFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" id="enta_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTargetSharesEarned" id="enta_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTargetSharesEarned" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationStockOptionsExpirationPeriod" id="enta_ShareBasedCompensationStockOptionsExpirationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedPaymentAwardStockOptionsValuationAssumptionsLineItems" id="enta_ShareBasedPaymentAwardStockOptionsValuationAssumptionsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedPaymentAwardStockOptionsValuationAssumptionsTable" id="enta_ShareBasedPaymentAwardStockOptionsValuationAssumptionsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ShortTermMarketableSecuritiesMember" id="enta_ShortTermMarketableSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShortTermMarketableSecurityMaturityPeriod" id="enta_ShortTermMarketableSecurityMaturityPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfAccountingAndFinancialPoliciesLineItems" id="enta_SummaryOfAccountingAndFinancialPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfAccountingAndFinancialPoliciesTable" id="enta_SummaryOfAccountingAndFinancialPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="TargetToAchievePercentage" id="enta_TargetToAchievePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TransferOfAssetsUponExerciseOfWarrantsMaximumAmount" id="enta_TransferOfAssetsUponExerciseOfWarrantsMaximumAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TwoThousandTwelveEquityIncentivePlanMember" id="enta_TwoThousandTwelveEquityIncentivePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ValuationAllowanceDeferredTaxAssetChangeInAmountDecrease" id="enta_ValuationAllowanceDeferredTaxAssetChangeInAmountDecrease" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
