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4KF3

Crystal Structure of Myotoxin II (MjTX-II), a myotoxic Lys49-phospholipase A2 from Bothrops moojeni.

Functional Information from GO Data
ChainGOidnamespacecontents
A0004623molecular_functionphospholipase A2 activity
A0005509molecular_functioncalcium ion binding
A0005543molecular_functionphospholipid binding
A0005576cellular_componentextracellular region
A0006644biological_processphospholipid metabolic process
A0016042biological_processlipid catabolic process
A0031640biological_processkilling of cells of another organism
A0035821biological_processmodulation of process of another organism
A0042130biological_processnegative regulation of T cell proliferation
A0042742biological_processdefense response to bacterium
A0050482biological_processarachidonate secretion
A0050832biological_processdefense response to fungus
A0090729molecular_functiontoxin activity
B0004623molecular_functionphospholipase A2 activity
B0005509molecular_functioncalcium ion binding
B0005543molecular_functionphospholipid binding
B0005576cellular_componentextracellular region
B0006644biological_processphospholipid metabolic process
B0016042biological_processlipid catabolic process
B0031640biological_processkilling of cells of another organism
B0035821biological_processmodulation of process of another organism
B0042130biological_processnegative regulation of T cell proliferation
B0042742biological_processdefense response to bacterium
B0050482biological_processarachidonate secretion
B0050832biological_processdefense response to fungus
B0090729molecular_functiontoxin activity
Functional Information from PDB Data
site_idAC1
Number of Residues12
DetailsBINDING SITE FOR RESIDUE PE4 B 201
ChainResidue
ASER1
BPE4203
BHOH372
BHOH374
ALEU2
AILE9
ATYR22
ACYS29
AGLY30
ALYS70
BTYR121
BPRO125

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE PE4 B 202
ChainResidue
ALYS123
APRO125
BLEU2
BILE9
BGLY30
BCYS45
BLYS70
BARG72
BHOH385

site_idAC3
Number of Residues9
DetailsBINDING SITE FOR RESIDUE PE4 B 203
ChainResidue
ALEU2
BGLY23
BGLY30
BVAL31
BGLY32
BLYS49
BTYR52
BPE4201
BHOH338

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE IPA B 204
ChainResidue
BLYS20
BLYS115
BARG118
BHOH341

site_idAC5
Number of Residues2
DetailsBINDING SITE FOR RESIDUE IPA B 205
ChainResidue
BARG34
BLYS53

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE IPA B 206
ChainResidue
BASN17
BLYS20
BSER21

site_idAC7
Number of Residues10
DetailsBINDING SITE FOR RESIDUE PE4 A 201
ChainResidue
APHE3
ALYS7
ALEU10
AGLN11
ATYR75
ATRP77
BLEU10
BGLN11
BGLY15
BTRP77

site_idAC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE IPA A 202
ChainResidue
AGLY15
ALYS16
AASN17
ALYS20

site_idAC9
Number of Residues3
DetailsBINDING SITE FOR RESIDUE IPA A 203
ChainResidue
AGLY33
AARG34
ALYS53

site_idBC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE IPA A 204
ChainResidue
ALYS20
ALYS115
AARG118

Functional Information from PROSITE/UniProt
site_idPS00118
Number of Residues8
DetailsPA2_HIS Phospholipase A2 histidine active site. CCYvHKcC
ChainResidueDetails
BCYS44-CYS51

site_idPS00119
Number of Residues11
DetailsPA2_ASP Phospholipase A2 aspartic acid active site. LCECDKAVaIC
ChainResidueDetails
BLEU95-CYS105

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues26
DetailsRegion: {"description":"Important for membrane-damaging activities in eukaryotes and bacteria; heparin-binding","evidences":[{"source":"UniProtKB","id":"P24605","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsSite: {"description":"Cationic membrane-docking site (MDoS)","evidences":[{"source":"PubMed","id":"29287778","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsSite: {"description":"Important residue of the cationic membrane-docking site (MDoS)","evidences":[{"source":"UniProtKB","id":"I6L8L6","evidenceCode":"ECO:0000250"},{"source":"PubMed","id":"29287778","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

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

site_idSWS_FT_FI5
Number of Residues4
DetailsSite: {"description":"Cationic membrane-docking site (MDoS)","evidences":[{"source":"UniProtKB","id":"I6L8L6","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246333

PDB entries from 2025-12-17

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