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1GQN

Native 3-dehydroquinase from Salmonella typhi

Functional Information from GO Data
ChainGOidnamespacecontents
A0003855molecular_function3-dehydroquinate dehydratase activity
A0008652biological_processamino acid biosynthetic process
A0009073biological_processaromatic amino acid family biosynthetic process
A0009423biological_processchorismate biosynthetic process
A0016829molecular_functionlyase activity
A0046279biological_process3,4-dihydroxybenzoate biosynthetic process
Functional Information from PROSITE/UniProt
site_idPS01028
Number of Residues31
DetailsDEHYDROQUINASE_I Dehydroquinase class I active site. DLELftgdadvkatvdyahahnvyVVmSNHD
ChainResidueDetails
AASP114-ASP144

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: Proton donor/acceptor => ECO:0000255|HAMAP-Rule:MF_00214, ECO:0000305|PubMed:24957267
ChainResidueDetails
AHIS143

site_idSWS_FT_FI2
Number of Residues1
DetailsACT_SITE: Schiff-base intermediate with substrate => ECO:0000255|HAMAP-Rule:MF_00214, ECO:0000269|PubMed:10360352, ECO:0000269|PubMed:11976491
ChainResidueDetails
ALYS170

site_idSWS_FT_FI3
Number of Residues2
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_00214, ECO:0000269|PubMed:10360352, ECO:0000269|PubMed:11976491
ChainResidueDetails
ASER21
ASER232

site_idSWS_FT_FI4
Number of Residues3
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_00214, ECO:0000269|PubMed:10360352, ECO:0000269|PubMed:11976491, ECO:0000269|PubMed:24957267
ChainResidueDetails
AGLU46
AARG213
AGLN236

site_idSWS_FT_FI5
Number of Residues1
DetailsBINDING: BINDING => ECO:0000255|HAMAP-Rule:MF_00214, ECO:0000269|PubMed:10360352
ChainResidueDetails
AARG82

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1qfe
ChainResidueDetails
ALYS170
AHIS143
AGLU86

site_idMCSA1
Number of Residues3
DetailsM-CSA 54
ChainResidueDetails
AGLU86hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
AHIS143hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay
ALYS170covalently attached, electron pair acceptor, electron pair donor, hydrogen bond acceptor, hydrogen bond donor, nucleofuge, nucleophile, proton acceptor, proton donor

237735

PDB entries from 2025-06-18

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