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1DTX

CRYSTAL STRUCTURE OF ALPHA-DENDROTOXIN FROM THE GREEN MAMBA VENOM AND ITS COMPARISON WITH THE STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR

Functional Information from GO Data
ChainGOidnamespacecontents
A0004867molecular_functionserine-type endopeptidase inhibitor activity
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0015459molecular_functionpotassium channel regulator activity
A0030414molecular_functionpeptidase inhibitor activity
A0035821biological_processmodulation of process of another organism
A0090729molecular_functiontoxin activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 60
ChainResidue
AARG3
AARG4
AARG15
ACYS40
AGLY41
AHOH84

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 61
ChainResidue
AGLY41
AGLY42
AHOH65
AASN12
AGLY14
AARG15

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 62
ChainResidue
AHIS10
ALYS30
AILE50
AARG54
AHOH72

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 63
ChainResidue
AARG4
ALYS5
ATRP37
AHOH73
AHOH96

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 A 64
ChainResidue
ATYR17
ATRP37
AARG46
APHE47
ALYS48

Functional Information from PROSITE/UniProt
site_idPS00280
Number of Residues19
DetailsBPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FdwSGCggnsnrFktieeC
ChainResidueDetails
APHE35-CYS53

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsSITE: May be the major determinant of the binding affinity for potassium channels
ChainResidueDetails
ALYS5

site_idSWS_FT_FI2
Number of Residues1
DetailsSITE: Important for binding to potassium channels
ChainResidueDetails
ALEU9

site_idSWS_FT_FI3
Number of Residues1
DetailsSITE: Not important for inhibition of potassium channels
ChainResidueDetails
ALYS19

site_idSWS_FT_FI4
Number of Residues1
DetailsMOD_RES: Pyrrolidone carboxylic acid => ECO:0000269|PubMed:7429422
ChainResidueDetails
APCA1

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PDB entries from 2024-07-31

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