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1Y4L

Crystal structure of Bothrops asper myotoxin II complexed with the anti-trypanosomal drug suramin

Functional Information from GO Data
ChainGOidnamespacecontents
A0004623molecular_functionA2-type glycerophospholipase activity
A0005509molecular_functioncalcium ion binding
A0005543molecular_functionphospholipid binding
A0005576cellular_componentextracellular region
A0006644biological_processphospholipid metabolic process
A0016042biological_processlipid catabolic process
A0042130biological_processnegative regulation of T cell proliferation
A0050482biological_processarachidonate secretion
B0004623molecular_functionA2-type glycerophospholipase activity
B0005509molecular_functioncalcium ion binding
B0005543molecular_functionphospholipid binding
B0005576cellular_componentextracellular region
B0006644biological_processphospholipid metabolic process
B0016042biological_processlipid catabolic process
B0042130biological_processnegative regulation of T cell proliferation
B0050482biological_processarachidonate secretion
Functional Information from PDB Data
site_idAC1
Number of Residues27
DetailsBINDING SITE FOR RESIDUE SVR B 301
ChainResidue
ALEU2
APRO68
ALYS69
ALYS70
AP33401
AHOH525
BLEU2
BLEU5
BGLY30
BVAL31
BARG34
AGLY30
BHIS48
BLYS49
BTYR52
BLYS53
BLYS69
BLYS70
BLYS93
BP33402
AVAL31
ALEU32
AGLY33
AARG34
ALYS49
ATYR52
ALYS53

site_idAC2
Number of Residues13
DetailsBINDING SITE FOR RESIDUE P33 A 401
ChainResidue
ALEU2
AGLY6
ALYS7
ALEU10
APRO17
ATYR22
AASN28
ACYS29
AGLY30
ACYS45
AHIS48
ALYS49
BSVR301

site_idAC3
Number of Residues13
DetailsBINDING SITE FOR RESIDUE P33 B 402
ChainResidue
BLEU2
BGLY6
BLYS7
BLEU10
BPRO17
BTYR22
BASN28
BCYS29
BGLY30
BCYS45
BHIS48
BLYS49
BSVR301

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE IPA B 501
ChainResidue
AHOH550
BLEU58
BTHR59
BSER90
BGLU94

site_idAC5
Number of Residues4
DetailsBINDING SITE FOR RESIDUE IPA B 502
ChainResidue
BASN16
BLYS19
BSER20
BIPA505

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE IPA A 503
ChainResidue
ALYS19
ALYS115
AARG118

site_idAC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE IPA A 504
ChainResidue
AASN16
ALYS19
AHOH582
AHOH602

site_idAC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE IPA B 505
ChainResidue
BLYS19
BLYS115
BARG118
BIPA502

Functional Information from PROSITE/UniProt
site_idPS00118
Number of Residues8
DetailsPA2_HIS Phospholipase A2 histidine active site. CCYvHKcC
ChainResidueDetails
ACYS44-CYS51

site_idPS00119
Number of Residues11
DetailsPA2_ASP Phospholipase A2 aspartic acid active site. LCECDKAVaIC
ChainResidueDetails
ALEU95-CYS105

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues24
DetailsRegion: {"description":"Important for membrane-damaging activities in eukaryotes and bacteria; heparin-binding","evidences":[{"source":"PubMed","id":"21506137","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7961981","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9654096","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsSite: {"description":"Important residue of the cationic membrane-docking site (MDoS)","evidences":[{"source":"UniProtKB","id":"I6L8L6","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsSite: {"description":"Hydrophobic membrane-disruption site (MDiS)","evidences":[{"source":"UniProtKB","id":"I6L8L6","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsSite: {"description":"Cationic membrane-docking site (MDoS)","evidences":[{"source":"UniProtKB","id":"I6L8L6","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1n29
ChainResidueDetails
AHIS48
AGLY30
AASP99

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1n29
ChainResidueDetails
BHIS48
BGLY30
BASP99

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PDB entries from 2026-03-25

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