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1KXR

Crystal Structure of Calcium-Bound Protease Core of Calpain I

Functional Information from GO Data
ChainGOidnamespacecontents
A0004198molecular_functioncalcium-dependent cysteine-type endopeptidase activity
A0006508biological_processproteolysis
B0004198molecular_functioncalcium-dependent cysteine-type endopeptidase activity
B0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 1
ChainResidue
AVAL99
AGLY101
AASP106
AGLU185
AHOH450
AHOH451

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 2
ChainResidue
AASP331
AGLU333
AHOH380
AGLU302
AASP309
AMET329

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 3
ChainResidue
BVAL99
BGLY101
BASP106
BGLU185
BHOH443
BHOH444

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 4
ChainResidue
BGLU302
BASP309
BMET329
BASP331
BGLU333
BHOH446

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues6
DetailsACT_SITE: ACT_SITE => ECO:0000250
ChainResidueDetails
ASER115
AHIS272
AASN296
BSER115
BHIS272
BASN296

site_idSWS_FT_FI2
Number of Residues2
DetailsSITE: Cleavage; for 75 kDa form => ECO:0000250
ChainResidueDetails
AGLY27
BGLY27

site_idSWS_FT_FI3
Number of Residues2
DetailsMOD_RES: Phosphothreonine => ECO:0000250|UniProtKB:P07384
ChainResidueDetails
ATHR354
BTHR354

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1kfu
ChainResidueDetails
AHIS272
AGLN109
AASN296
ASER115

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1kfu
ChainResidueDetails
BHIS272
BGLN109
BASN296
BSER115

site_idCSA3
Number of Residues5
DetailsAnnotated By Reference To The Literature 1kfu
ChainResidueDetails
AHIS272
AGLN109
ATRP298
AASN296
ASER115

site_idCSA4
Number of Residues5
DetailsAnnotated By Reference To The Literature 1kfu
ChainResidueDetails
BHIS272
BGLN109
BTRP298
BASN296
BSER115

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PDB entries from 2024-07-24

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