AC   MF_01046;
DC   Protein; auto
TR   HAMAP; MF_01046; -; 1; level=0
XX
Names: Deglycase_HchA
XX
DE   RecName: Full=Protein/nucleic acid deglycase HchA;
DE            EC=3.1.2.-;
DE            EC=3.5.1.-;
DE            EC=3.5.1.124;
DE   AltName: Full=Maillard deglycase;
GN   Name=hchA;
XX
CC   -!- FUNCTION: Protein and nucleotide deglycase that catalyzes the
CC       deglycation of the Maillard adducts formed between amino groups of
CC       proteins or nucleotides and reactive carbonyl groups of glyoxals. Thus,
CC       functions as a protein deglycase that repairs methylglyoxal- and
CC       glyoxal-glycated proteins, and releases repaired proteins and lactate
CC       or glycolate, respectively. Deglycates cysteine, arginine and lysine
CC       residues in proteins, and thus reactivates these proteins by reversing
CC       glycation by glyoxals. Acts on early glycation intermediates
CC       (hemithioacetals and aminocarbinols), preventing the formation of
CC       Schiff bases and advanced glycation endproducts (AGE). Also functions
CC       as a nucleotide deglycase able to repair glycated guanine in the free
CC       nucleotide pool (GTP, GDP, GMP, dGTP) and in DNA and RNA. Is thus
CC       involved in a major nucleotide repair system named guanine glycation
CC       repair (GG repair), dedicated to reversing methylglyoxal and glyoxal
CC       damage via nucleotide sanitization and direct nucleic acid repair.
CC       Plays an important role in protecting cells from carbonyl stress.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(omega)-(1-hydroxy-2-oxopropyl)-L-arginyl-[protein] =
CC         H(+) + L-arginyl-[protein] + lactate; Xref=Rhea:RHEA:49548,
CC         Rhea:RHEA-COMP:10532, Rhea:RHEA-COMP:12428, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:24996, ChEBI:CHEBI:29965,
CC         ChEBI:CHEBI:131708; EC=3.5.1.124;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(6)-(1-hydroxy-2-oxopropyl)-L-lysyl-[protein] = H(+) +
CC         L-lysyl-[protein] + lactate; Xref=Rhea:RHEA:49552, Rhea:RHEA-
CC         COMP:9752, Rhea:RHEA-COMP:12429, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:24996, ChEBI:CHEBI:29969,
CC         ChEBI:CHEBI:131709; EC=3.5.1.124;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + S-(1-hydroxy-2-oxopropyl)-L-cysteinyl-[protein] = H(+) +
CC         L-cysteinyl-[protein] + lactate; Xref=Rhea:RHEA:49556, Rhea:RHEA-
CC         COMP:10131, Rhea:RHEA-COMP:12430, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:24996, ChEBI:CHEBI:29950,
CC         ChEBI:CHEBI:131710; EC=3.5.1.124;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(omega)-(1-hydroxy-2-oxoethyl)-L-arginyl-[protein] =
CC         glycolate + H(+) + L-arginyl-[protein]; Xref=Rhea:RHEA:57188,
CC         Rhea:RHEA-COMP:10532, Rhea:RHEA-COMP:14844, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29805, ChEBI:CHEBI:29965,
CC         ChEBI:CHEBI:141553;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(6)-(1-hydroxy-2-oxoethyl)-L-lysyl-[protein] =
CC         glycolate + H(+) + L-lysyl-[protein]; Xref=Rhea:RHEA:57192,
CC         Rhea:RHEA-COMP:9752, Rhea:RHEA-COMP:14845, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29805, ChEBI:CHEBI:29969,
CC         ChEBI:CHEBI:141554;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + S-(1-hydroxy-2-oxoethyl)-L-cysteinyl-[protein] =
CC         glycolate + H(+) + L-cysteinyl-[protein]; Xref=Rhea:RHEA:57196,
CC         Rhea:RHEA-COMP:10131, Rhea:RHEA-COMP:14846, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29805, ChEBI:CHEBI:29950,
CC         ChEBI:CHEBI:141555;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxopropyl)-dGTP = dGTP + H(+) +
CC         lactate; Xref=Rhea:RHEA:57244, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:24996, ChEBI:CHEBI:61429, ChEBI:CHEBI:141569;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxopropyl)-GTP = GTP + H(+) + lactate;
CC         Xref=Rhea:RHEA:57256, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:24996, ChEBI:CHEBI:37565, ChEBI:CHEBI:141570;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxopropyl)-GDP = GDP + H(+) + lactate;
CC         Xref=Rhea:RHEA:57260, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:24996, ChEBI:CHEBI:58189, ChEBI:CHEBI:141573;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxopropyl)-GMP = GMP + H(+) + lactate;
CC         Xref=Rhea:RHEA:57268, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:24996, ChEBI:CHEBI:58115, ChEBI:CHEBI:141575;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxoethyl)-dGTP = dGTP + glycolate +
CC         H(+); Xref=Rhea:RHEA:57248, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29805, ChEBI:CHEBI:61429, ChEBI:CHEBI:141572;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxoethyl)-GTP = glycolate + GTP +
CC         H(+); Xref=Rhea:RHEA:57252, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29805, ChEBI:CHEBI:37565, ChEBI:CHEBI:141571;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxoethyl)-GDP = GDP + glycolate +
CC         H(+); Xref=Rhea:RHEA:57264, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29805, ChEBI:CHEBI:58189, ChEBI:CHEBI:141574;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N(2)-(1-hydroxy-2-oxoethyl)-GMP = glycolate + GMP +
CC         H(+); Xref=Rhea:RHEA:57304, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29805, ChEBI:CHEBI:58115, ChEBI:CHEBI:141576;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an N(2)-(1-hydroxy-2-oxopropyl)-guanosine in RNA + H2O = a
CC         guanosine in RNA + H(+) + lactate; Xref=Rhea:RHEA:57288, Rhea:RHEA-
CC         COMP:14855, Rhea:RHEA-COMP:14858, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:24996, ChEBI:CHEBI:74269,
CC         ChEBI:CHEBI:141580;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an N(2)-(1-hydroxy-2-oxopropyl)-2'-deoxyguanosine in DNA + H2O
CC         = a 2'-deoxyguanosine in DNA + H(+) + lactate; Xref=Rhea:RHEA:57300,
CC         Rhea:RHEA-COMP:11367, Rhea:RHEA-COMP:14856, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:24996, ChEBI:CHEBI:85445,
CC         ChEBI:CHEBI:141578;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an N(2)-(1-hydroxy-2-oxoethyl)-guanosine in RNA + H2O = a
CC         guanosine in RNA + glycolate + H(+); Xref=Rhea:RHEA:57292, Rhea:RHEA-
CC         COMP:14855, Rhea:RHEA-COMP:14859, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29805, ChEBI:CHEBI:74269,
CC         ChEBI:CHEBI:141581;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an N(2)-(1-hydroxy-2-oxoethyl)-2'-deoxyguanosine in DNA + H2O
CC         = a 2'-deoxyguanosine in DNA + glycolate + H(+);
CC         Xref=Rhea:RHEA:57296, Rhea:RHEA-COMP:11367, Rhea:RHEA-COMP:14857,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29805,
CC         ChEBI:CHEBI:85445, ChEBI:CHEBI:141579;
case <OC:Enterobacterales>
CC   -!- SUBUNIT: Homodimer.
end case
CC   -!- SUBCELLULAR LOCATION: Cytoplasm.
case <OC:Escherichia> or <OC:Shigella>
CC   -!- INDUCTION: By heat shock.
end case
CC   -!- SIMILARITY: Belongs to the peptidase C56 family. HchA subfamily.
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DR   Pfam; PF01965; DJ-1_PfpI; 1; trigger=no
DR   PIRSF; PIRSF037798; Chaperone_HchA; 1; trigger=no
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KW   Cytoplasm
KW   DNA damage
KW   DNA repair
KW   Hydrolase
KW   Stress response
case <FTGroup:1>
KW   Metal-binding
KW   Zinc
end case
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GO   GO:0016790; F:thiolester hydrolase activity
GO   GO:0016811; F:hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides
GO   GO:0036524; F:protein deglycase activity
case <FTGroup:1>
GO   GO:0008270; F:zinc ion binding
end case
GO   GO:0006281; P:DNA repair
GO   GO:0030091; P:protein repair
GO   GO:0005737; C:cytoplasm
XX
FT   From: HCHA_ECOLI (P31658)
FT   ACT_SITE        185
FT                   /note="Nucleophile"
FT   Condition: C
FT   BINDING         86
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT   Optional; Group: 1; Condition: [H]
FT   BINDING         91
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT   Optional; Group: 1; Condition: [E]
FT   BINDING         123
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT   Optional; Group: 1; Condition: [H]
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Size: 282-292;
Related: None;
Template: P31658;
Scope:
 Bacteria; Staphylococcus
 Bacteria; Gammaproteobacteria
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
XX
# Revision 1.31 2022/11/19
//