AC   MF_02109;
DC   Protein; auto
TR   HAMAP; MF_02109; -; 1; level=0
XX
Names: Cya_synthase
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ID   CYAS
DE   RecName: Full=Cysteate synthase;
DE            Short=CS;
DE            Short=Cya synthase;
DE            EC=2.5.1.76;
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CC   -!- FUNCTION: Specifically catalyzes the beta-elimination of phosphate from
CC       L-phosphoserine and the beta-addition of sulfite to the dehydroalanine
CC       intermediate to produce L-cysteate.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H(+) + O-phospho-L-serine + sulfite = L-cysteate + phosphate;
CC         Xref=Rhea:RHEA:26486, ChEBI:CHEBI:15378, ChEBI:CHEBI:17359,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57524, ChEBI:CHEBI:58090; EC=2.5.1.76;
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
case <OC:Methanobacteria> or <OC:Methanococci> or <OC:Methanomicrobia> or <OC:Methanopyri>
CC   -!- PATHWAY: Cofactor biosynthesis; coenzyme M biosynthesis.
end case
CC   -!- SUBUNIT: Homotrimer.
CC   -!- SIMILARITY: Belongs to the threonine synthase family. Cysteate synthase
CC       subfamily.
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DR   Pfam; PF00291; PALP; 1; trigger=no
XX
case <OC:Methanobacteria> or <OC:Methanococci> or <OC:Methanomicrobia> or <OC:Methanopyri>
KW   Coenzyme M biosynthesis
end case
KW   Pyridoxal phosphate
KW   Transferase
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GO   GO:0044686; F:cysteate synthase activity
GO   GO:0030170; F:pyridoxal phosphate binding
case <OC:Methanobacteria> or <OC:Methanococci> or <OC:Methanomicrobia> or <OC:Methanopyri>
GO   GO:0019295; P:coenzyme M biosynthetic process
end case
XX
FT   From: CYAS_METAC (Q8TKU7)
FT   MOD_RES         104
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT   Condition: K
FT   BINDING         130
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT   Condition: N
FT   From: CYAS_METBU (Q12W15)
FT   BINDING         371
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT   Optional; Condition: T
XX
Size: 412-430;
Related: None;
Template: Q8TKU7;
Scope:
 Archaea; Euryarchaeota
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
XX
# Revision 1.11 2022/11/19
//