<SEC-DOCUMENT>0001209191-17-031650.txt : 20170511
<SEC-HEADER>0001209191-17-031650.hdr.sgml : 20170511
<ACCEPTANCE-DATETIME>20170511191625
ACCESSION NUMBER:		0001209191-17-031650
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170511
FILED AS OF DATE:		20170511
DATE AS OF CHANGE:		20170511

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			aTYR PHARMA INC
		CENTRAL INDEX KEY:			0001339970
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				203435077
		STATE OF INCORPORATION:			DE

	BUSINESS ADDRESS:	
		STREET 1:		3545 JOHN HOPKINS COURT, STE #250
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-731-8389

	MAIL ADDRESS:	
		STREET 1:		3545 JOHN HOPKINS COURT, STE #250
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackburn Stan
		CENTRAL INDEX KEY:			0001640577

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37378
		FILM NUMBER:		17835929

	MAIL ADDRESS:	
		STREET 1:		C/O ATYR PHARMA, INC.
		STREET 2:		3545 JOHN HOPKINS COURT, SUITE 250
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>doc3a.xml
<DESCRIPTION>FORM 3/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2017-05-11</periodOfReport>

    <dateOfOriginalSubmission>2015-05-06</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001339970</issuerCik>
        <issuerName>aTYR PHARMA INC</issuerName>
        <issuerTradingSymbol>LIFE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001640577</rptOwnerCik>
            <rptOwnerName>Blackburn Stan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3545 JOHN HOPKINS COURT, SUITE 250</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Prior Acting CFO</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11805</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By the J. Stanhope and Karlene S. Blackburn Family Trust U.T.D. May 9, 2001</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The 93,901 shares previously reported on May 6, 2015 were not adjusted for a one-for-7.95413 reverse stock split of our common stock on May 5, 2015 in connection with our initial public offering. The pre-split number of shares was inadvertently reported rather than the post-split number of shares.</footnote>
        <footnote id="F2">The Reporting Person is a co-trustee of the J. Stanhope Blackburn and Karlene S. Blackburn Family Trust U.T.D. May 9, 2001.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Nancy D. Krueger, Attorney-In-Fact</signatureName>
        <signatureDate>2017-05-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
