eF-site ID 1s6b-B PDB Code 1s6b Chain B click to enlarge Title X-ray Crystal Structure of a Complex Formed Between Two Homologous Isoforms of Phospholipase A2 from Naja naja sagittifera: Principle of Molecular Association and Inactivation Classification HYDROLASE Compound Phospholipase A2 isoform 1 Source ORGANISM_SCIENTIFIC: Naja sagittifera; Sequence B:  NRWQFKNMISCTVPSRSWWDFADYGCYCGRGGSGTPVDDL DRCCQVHDNCYNEAEKISGCNPRFRTYSYECTAGTLTCTG RNNACAASVCDCDRLAAICFAGAPYNDNNYNIDLQARCN Description Functional site 1) chain B residue 24 type sequence D description BINDING SITE FOR RESIDUE CA A 401 source : AC1 2) chain B residue 112 type sequence N description BINDING SITE FOR RESIDUE CA A 401 source : AC1 3) chain B residue 28 type sequence Y description BINDING SITE FOR RESIDUE CA B 402 source : AC2 4) chain B residue 30 type sequence G description BINDING SITE FOR RESIDUE CA B 402 source : AC2 5) chain B residue 32 type sequence G description BINDING SITE FOR RESIDUE CA B 402 source : AC2 6) chain B residue 49 type sequence D description BINDING SITE FOR RESIDUE CA B 402 source : AC2 7) chain B residue 28 type sequence Y description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 8) chain B residue 29 type sequence C description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 9) chain B residue 30 type sequence G description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 10) chain B residue 45 type sequence C description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 11) chain B residue 48 type sequence H description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 12) chain B residue 49 type sequence D description BINDING SITE FOR RESIDUE PO4 B 501 source : AC3 13) chain B residue 109 type sequence N description BINDING SITE FOR RESIDUE PO4 A 502 source : AC4 14) chain B residue 32 type sequence G description BINDING SITE FOR RESIDUE ACY B 601 source : AC5 15) chain B residue 48 type ACT_SITE sequence H description ACT_SITE => ECO:0000250|UniProtKB:P14418 source Swiss-Prot : SWS_FT_FI1 16) chain B residue 94 type ACT_SITE sequence D description ACT_SITE => ECO:0000250|UniProtKB:P14418 source Swiss-Prot : SWS_FT_FI1 17) chain B residue 28 type BINDING sequence Y description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B source Swiss-Prot : SWS_FT_FI2 18) chain B residue 30 type BINDING sequence G description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B source Swiss-Prot : SWS_FT_FI2 19) chain B residue 32 type BINDING sequence G description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B source Swiss-Prot : SWS_FT_FI2 20) chain B residue 49 type BINDING sequence D description BINDING => ECO:0000269|PubMed:15828003, ECO:0007744|PDB:1S6B source Swiss-Prot : SWS_FT_FI2 21) chain B residue 44-51 type prosite sequence CCQVHDNC description PA2_HIS Phospholipase A2 histidine active site. CCQvHDnC source prosite : PS00118 22) chain B residue 90-100 type prosite sequence VCDCDRLAAIC description PA2_ASP Phospholipase A2 aspartic acid active site. VCDCDRLAaIC source prosite : PS00119

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