Reviewed, UniProtKB/Swiss-Prot Q4R596 (SAHH_MACFA)

Names and origin

Protein names

Recommended name:
    Adenosylhomocysteinase
      Short name=AdoHcyase
    EC=3.3.1.1
Alternative name(s):
    S-adenosyl-L-homocysteine hydrolase

Gene names

Name:	AHCY
ORF Names:	QccE-12261

Organism

Macaca fascicularis (Crab eating macaque) (Cynomolgus monkey)

Taxonomic identifier

9541 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Cercopithecidae › Cercopithecinae › Macaca

Protein attributes

Sequence length	432 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	Adenosylhomocysteine is a competitive inhibitor of S-adenosyl-L-methionine-dependent methyl transferase reactions; therefore adenosylhomocysteinase may play a key role in the control of methylations via regulation of the intracellular concentration of adenosylhomocysteine By similarity.
Catalytic activity	S-adenosyl-L-homocysteine + H2O = L-homocysteine + adenosine.
Cofactor	Binds 1 NAD per subunit By similarity.
Pathway	Amino-acid biosynthesis; homocysteine biosynthesis; L-homocysteine from S-adenosyl-L-homocysteine: step 1/1.
Subunit structure	Homotetramer By similarity.
Subcellular location	Cytoplasm By similarity. Melanosome By similarity.
Sequence similarities	Belongs to the adenosylhomocysteinase family.

Ontologies

Keywords
Biological process	One-carbon metabolism
Cellular component	Cytoplasm
Ligand	NAD
Molecular function	Hydrolase
PTM	Acetylation
Gene Ontology (GO)
Biological process	one-carbon compound metabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	melanosome Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	adenosylhomocysteinase activity Inferred from electronic annotation. Source: EC binding Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Initiator methionine	1	1	Removed By similarity
	Chain	2 – 432	431	Adenosylhomocysteinase		PRO_0000260218
Regions
	Region	183 – 350	168	NAD binding By similarity
Sites
	Binding site	57	1	Substrate By similarity
	Binding site	131	1	Substrate By similarity
	Binding site	156	1	Substrate By similarity
	Binding site	186	1	Substrate By similarity
	Binding site	190	1	Substrate By similarity
Amino acid modifications
	Modified residue	2	1	N-acetylserine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q4R596-1 [UniParc]. Last modified January 23, 2007. Version 3. Checksum: 65B53F02612D934E	FASTA	432	47,687
	10 20 30 40 50 60 MSDKLPYKVA DIGLAAWGRK ALDIAENEMP GLMRMREQYS ASKPLKGARI AGCLHMTVET 70 80 90 100 110 120 AVLIETLVAL GAEVQWSSCN IFSTQDHAAA AIAKAGIPVY AWKGETDEEY LWCIEQTLYF 130 140 150 160 170 180 KDGPLNMILD DGGDLTNLIH TKYPQLLSGI RGISEETTTG VHNLYKMMAN GILKVPAINV 190 200 210 220 230 240 NDSVTKSKFD NLYGCRESLI DGIKRATDVM IAGKVAVVAG YGDVGKGCAQ ALRGFGARVI 250 260 270 280 290 300 ITEIDPINAL QAAMEGYEVT TMDEACQEGN IFVTTTGCVD IILGRHFEQM KDDAIVCNIG 310 320 330 340 350 360 HFDVEIDVKW LNENAVEKVN IKPQVDRYRL KNGRRIILLA EGRLVNLGCA MGHPSFVMSN 370 380 390 400 410 420 SFTNQVMAQI ELWTHPDKYP VGVHFLPKKL DEAVAEAHLG KLNVKLTKLT EKQAQYLGMS 430 RDGPFKPDHY RY

References

[1]	"DNA sequences of macaque genes expressed in brain or testis and its evolutionary implications." International consortium for macaque cDNA sequencing and analysis Submitted (JUN-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Brain cortex.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AB169648 mRNA. Translation: BAE01729.1.
3D structure databases
SMR	Q4R596. Positions 3-432.
ModBase	Search...
Phylogenomic databases
HOVERGEN	Q4R596.
Enzyme and pathway databases
BRENDA	3.3.1.1. 3438.
Family and domain databases
InterPro	IPR000043. Ad_hcy_hydrolase. IPR015878. Ado_hCys_hydrolase_NAD-bd. [Graphical view]
Gene3D	G3DSA:3.40.50.1480. Ad_hcy_hydrolase. 1 hit.
PANTHER	PTHR23420. Ad_hcy_hydrolase. 1 hit.
Pfam	PF05221. AdoHcyase. 1 hit. PF00670. AdoHcyase_NAD. 1 hit. [Graphical view]
PIRSF	PIRSF001109. Ad_hcy_hydrolase. 1 hit.
TIGRFAMs	TIGR00936. ahcY. 1 hit.
PROSITE	PS00738. ADOHCYASE_1. 1 hit. PS00739. ADOHCYASE_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SAHH_MACFA

Accession

Primary (citable) accession number: Q4R596

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 28, 2006
Last sequence update:	January 23, 2007
Last modified:	June 16, 2009
This is version 30 of the entry and version 3 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)