eF-site ID 1nul-A PDB Code 1nul Chain A click to enlarge Title XPRTASE FROM E. COLI Classification PHOSPHORIBOSYLTRANSFERASE Compound XANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE Source ORGANISM_SCIENTIFIC: Escherichia coli; Sequence A:  EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVP GALLARELGIRHVDTVCISSLKVLKRAEGDGEGFIVIDDL VDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIP QDTWIEQPWDMGVVFVPPISGR Description Functional site 1) chain A residue 53 type sequence R description BINDING SITE FOR RESIDUE SO4 B 301 source : AC1 2) chain A residue 37 type sequence R description BINDING SITE FOR RESIDUE SO4 A 302 source : AC2 3) chain A residue 38 type sequence G description BINDING SITE FOR RESIDUE SO4 A 302 source : AC2 4) chain A residue 88 type sequence D description BINDING SITE FOR RESIDUE MG A 502 source : AC4 5) chain A residue 89 type sequence D description BINDING SITE FOR RESIDUE MG A 502 source : AC4 6) chain A residue 88 type BINDING sequence D description BINDING => ECO:0000305|PubMed:9743633, ECO:0007744|PDB:1A95 source Swiss-Prot : SWS_FT_FI1 7) chain A residue 37 type BINDING sequence R description BINDING => ECO:0000305|PubMed:9743633, ECO:0007744|PDB:1A95 source Swiss-Prot : SWS_FT_FI1 8) chain A residue 134 type BINDING sequence W description BINDING => ECO:0000269|PubMed:9743633, ECO:0007744|PDB:1A97 source Swiss-Prot : SWS_FT_FI2 9) chain A residue 89 type BINDING sequence D description BINDING => ECO:0000269|PubMed:9100006 source Swiss-Prot : SWS_FT_FI3 10) chain A residue 135 type BINDING sequence I description BINDING => ECO:0000269|PubMed:9743633, ECO:0007744|PDB:1A96 source Swiss-Prot : SWS_FT_FI4 11) chain A residue 92 type BINDING sequence D description BINDING => ECO:0000269|PubMed:9743633, ECO:0007744|PDB:1A96 source Swiss-Prot : SWS_FT_FI4 12) chain A residue 88 type catalytic sequence D description 391 source MCSA : MCSA1 13) chain A residue 89 type catalytic sequence D description 391 source MCSA : MCSA1 14) chain A residue 92 type catalytic sequence D description 391 source MCSA : MCSA1 15) chain A residue 84-96 type prosite sequence FIVIDDLVDTGGT description PUR_PYR_PR_TRANSFER Purine/pyrimidine phosphoribosyl transferases signature. FIVIDDLVDTGgT source prosite : PS00103

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