HAMAP

Accession	MF_02109
Dates	23-FEB-2010 (Created) 18-AUG-2010 (Last updated, Version 3)

Data class

Protein

Predictors

HAMAP; MF_02109; [distribution of match scores in UniProtKB];[seed alignment for MF_02109]

Names

Cya_synthase

Identifier

CYAS

Protein name

RecName: Full=Cysteate synthase; Short=CS; Short=Cya synthase; EC=2.5.1.76;

FUNCTION: Specifically catalyzes the beta-elimination of phosphate from L-phosphoserine and the beta-addition of sulfite to the dehydroalanine intermediate to produce L-cysteate (By similarity).

CATALYTIC ACTIVITY: O-phospho-L-serine + sulfite = L-cysteate + phosphate.

COFACTOR: Pyridoxal phosphate (By similarity).

PATHWAY: Cofactor biosynthesis; coenzyme M biosynthesis.

SUBUNIT: Homotrimer (By similarity).

SIMILARITY: Belongs to the threonine synthase family. Cysteate synthase subfamily.

Pfam	PF00291; PALP; 1;

Coenzyme M biosynthesis.

Pyridoxal phosphate, Transferase.

GO:0016765; Molecular function: transferase activity, transferring alkyl or aryl (other than methyl) groups.
GO:0030170; Molecular function: pyridoxal phosphate binding.

GO:0019295; Biological process: coenzyme M biosynthetic process.

From: CYAS_METAC (Q8TKU7)
Key		From		To		Description		Condition		FTGroup
MOD_RES		104		104		N6-(pyridoxal phosphate)lysine (By similarity)		K
BINDING		130		130		Pyridoxal phosphate (By similarity)		N
From: CYAS_METBU (Q12W15)
BINDING (Optional)		371		371		Pyridoxal phosphate (By similarity)		T

Size range:	412-430 amino acids
Related UniRules:	None
Template:	Q8TKU7 (CYAS_METAC)
Scope:	Archaea; Euryarchaeota
Fusion:	Nter: None; Cter: None
Duplicate:	None
Plasmid encoded:	None