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2CKS

X-RAY CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF THERMOBIFIDA FUSCA ENDOGLUCANASE CEL5A (E5)

Functional Information from GO Data
ChainGOidnamespacecontents
A0000272biological_processpolysaccharide catabolic process
A0004553molecular_functionhydrolase activity, hydrolyzing O-glycosyl compounds
A0005975biological_processcarbohydrate metabolic process
B0000272biological_processpolysaccharide catabolic process
B0004553molecular_functionhydrolase activity, hydrolyzing O-glycosyl compounds
B0005975biological_processcarbohydrate metabolic process
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE ZN A1432
ChainResidue
AASP169
AASP173
BHIS233
BLEU236
BGLU278

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE ZN A1433
ChainResidue
AHOH2188
AHOH2192
AHOH2322
AALA251
AASP287
AASP289
ANA1436

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE ZN A1434
ChainResidue
AASP193
AHOH2323
AHOH2324

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE ZN A1435
ChainResidue
AGLU263
AGLU355
ANA1437
AHOH2325
AHOH2326

site_idAC5
Number of Residues10
DetailsBINDING SITE FOR RESIDUE NA A1436
ChainResidue
AALA251
ALYS253
AASP287
AASP289
ASER290
AZN1433
AHOH2184
AHOH2190
AHOH2192
AHOH2322

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE NA A1437
ChainResidue
AZN1435
AHOH2226
AHOH2326

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE ZN B1432
ChainResidue
AHIS233
ALEU236
AGLU278
BASP169
BASP173

site_idAC8
Number of Residues2
DetailsBINDING SITE FOR RESIDUE ZN B1433
ChainResidue
BGLU145
BHIS146

site_idAC9
Number of Residues7
DetailsBINDING SITE FOR RESIDUE ZN B1434
ChainResidue
BALA251
BLYS253
BASP287
BASP289
BNA1437
BHOH2312
BHOH2313

site_idBC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN B1435
ChainResidue
BGLU263
BGLU355
BHOH2103
BHOH2314

site_idBC2
Number of Residues1
DetailsBINDING SITE FOR RESIDUE NA B1436
ChainResidue
BASP193

site_idBC3
Number of Residues8
DetailsBINDING SITE FOR RESIDUE NA B1437
ChainResidue
BALA251
BLYS253
BASP287
BASP289
BZN1434
BHOH2187
BHOH2312
BHOH2313

site_idBC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE BEN A1431
ChainResidue
AARG284
ASER321
AHOH2186
AHOH2220
AHOH2319
AHOH2320
AHOH2321

site_idBC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE BEN B1431
ChainResidue
BARG284
BALA320
BSER321
BHOH2215
BHOH2309
BHOH2310
BHOH2311

Functional Information from PROSITE/UniProt
site_idPS00659
Number of Residues10
DetailsGLYCOSYL_HYDROL_F5 Glycosyl hydrolases family 5 signature. VLYEIANEPN
ChainResidueDetails
AVAL256-ASN265

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"UniProtKB","id":"O85465","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Nucleophile","evidences":[{"source":"UniProtKB","id":"O85465","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues5
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
AHIS328
AASN262
AGLU263
AGLU355
ATYR330

site_idCSA2
Number of Residues5
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
BHIS328
BASN262
BGLU263
BGLU355
BTYR330

site_idCSA3
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
AARG185
AGLU355
AGLU263

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
BARG185
BGLU355
BGLU263

site_idCSA5
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
AGLU263

site_idCSA6
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bqc
ChainResidueDetails
BGLU263

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PDB entries from 2025-07-09

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