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1UV4

Native Bacillus subtilis Arabinanase Arb43A

Functional Information from GO Data
ChainGOidnamespacecontents
A0004553molecular_functionhydrolase activity, hydrolyzing O-glycosyl compounds
A0005975biological_processcarbohydrate metabolic process
A0046558molecular_functionarabinan endo-1,5-alpha-L-arabinosidase activity
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE CA A 502
ChainResidue
AHOH2008
AHOH2014
AHOH2108
AHOH2110
AHOH2160
AHOH2203
AHOH2204
AHOH2275

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE CA A1294
ChainResidue
AGLU135
AASP257
AHOH2111
AHOH2161
AHOH2299
AHOH2300
AASP77

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE EDO A 604
ChainResidue
AHOH2296
AHOH2297
AHOH2298

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A1295
ChainResidue
AASP244
AGLY246
AASN247
ATRP250
AARG266

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE EDO A1296
ChainResidue
ALYS156
ALEU171
ASER173

site_idAC6
Number of Residues10
DetailsBINDING SITE FOR RESIDUE EDO A1297
ChainResidue
AMET17
AILE18
AILE78
AGLN79
AVAL259
AASN260
AHOH2299
AHOH2300
AHOH2301
AHOH2302

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"15708971","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"PubMed","id":"15708971","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues7
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsSite: {"description":"Important for catalytic activity, responsible for pKa modulation of the active site Glu and correct orientation of both the proton donor and substrate","evidences":[{"source":"PubMed","id":"15708971","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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