HAMAP logo

HAMAP rule MF_00998

Send feedback

General rule information [?]

Accession MF_00998
Dates 31-MAR-2014 (Created)
5-JUL-2023 (Last updated, Version 9)
Name SQ_isomerase
Scope(s) Bacteria
Enterobacterales
Template(s) P32140 (SQUS_ECOLI); Q8ZKT7 (SQUS_SALTY); [ Recover all ]
Triggered by HAMAP; MF_00998 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier SQUS
Protein name RecName: Full=Sulfoquinovose isomerase;
                 Short=SQ isomerase;
                 EC=5.3.1.31;

Comments [?]

FUNCTIONCatalyzes the isomerization of sulfoquinovose (SQ) to 6- deoxy-6-sulfo-D-fructose (SF).
CATALYTIC ACTIVITY Reaction=6-sulfo-beta-D-quinovose = 6-deoxy-6-sulfo-D-fructose; Xref=Rhea:RHEA:40439, ChEBI:CHEBI:77133, ChEBI:CHEBI:142957; EC=5.3.1.31; PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40440;
SUBUNITHomohexamer.
SIMILARITYBelongs to the N-acylglucosamine 2-epimerase family.

Keywords [?]


Gene Ontology [?]

GO:0061593; Molecular function:sulfoquinovose isomerase activity
GO:1902777; Biological process:6-sulfoquinovose(1-) catabolic process

Cross-references [?]

Pfam PF07221; GlcNAc_2-epim; 1;

Features [?]

From: SQUS_SALTY (Q8ZKT7)
Key From To Description Tag Condition FTGroup
ACT_SITE 248 248 /note="Proton donor/acceptor" H
ACT_SITE 383 383 /note="Proton donor/acceptor" H
BINDING 55 55 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
R
BINDING 111 111 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
Y
BINDING 172 172 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
N
BINDING 176 176 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
H
BINDING 238 238 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
R
BINDING 251 251 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
E
BINDING 362 362 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
Q
BINDING 379 379 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
Q
BINDING 383 383 /ligand="6-sulfo-beta-D-quinovose"
/ligand_id="ChEBI:CHEBI:142957"
H

Additional information [?]

Size range 390-420 amino acids
Related rules None
Fusion Nter: None Cter: None



View rule in raw text format (no links)