A5UNH4 (PUR7_METS3) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Phosphoribosylaminoimidazole-succinocarboxamide synthase
EC=6.3.2.6

Alternative name(s):
SAICAR synthetase

Gene names

Name:	purC
Ordered Locus Names:	Msm_1547

Organism

Methanobrevibacter smithii (strain PS / ATCC 35061 / DSM 861) [Complete proteome] [HAMAP]

Taxonomic identifier

420247 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanobacteria › Methanobacteriales › Methanobacteriaceae › Methanobrevibacter

Protein attributes

Sequence length	243 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Catalytic activity	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate = ADP + phosphate + (S)-2-(5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamido)succinate. HAMAP MF_00137
Pathway	Purine metabolism; IMP biosynthesis via de novo pathway; 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate: step 1/2. HAMAP MF_00137
Sequence similarities	Belongs to the SAICAR synthetase family.

Ontologies

Keywords
Biological process	Purine biosynthesis
Ligand	ATP-binding Nucleotide-binding
Molecular function	Ligase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	purine nucleotide biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW phosphoribosylaminoimidazolesuccinocarboxamide synthase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 243	243	Phosphoribosylaminoimidazole-succinocarboxamide synthase HAMAP MF_00137		PRO_1000018733

Sequences

	Sequence		Length	Mass (Da)
	A5UNH4 [UniParc]. Last modified July 10, 2007. Version 1. Checksum: 15204DF8376E3A86	FASTA	243	27,492
	10 20 30 40 50 60 MDKKELINNG KVKSVYTTDD ENAVIIEFRD DMTAGDGARK EVMNKKGSYN ALISTKLFKV 70 80 90 100 110 120 LEENGIKTQF IDLPETNVMV AKKLEMIPIE VIVRNIATGS LIRKYPIADG TKLDPPIVQM 130 140 150 160 170 180 DFKADEFHDP MLNDSIIKAL GLATQEEIDE LTEKALKINE VLSEFLLEAG IILVDFKVEF 190 200 210 220 230 240 GKDKNGEIIL GDEISPDGCR LWDSETLDML DKELFRKGKD NEVMDAYVEV YNRIIPDDEK IEL

References

[1]

"Genomic and metabolic adaptations of Methanobrevibacter smithii to the human gut." Samuel B.S., Hansen E.E., Manchester J.K., Coutinho P.M., Henrissat B., Fulton R., Latreille P., Kim K., Wilson R.K., Gordon J.I. Proc. Natl. Acad. Sci. U.S.A. 104:10643-10648(2007) [PubMed: 17563350] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: PS / ATCC 35061 / DSM 861.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000678 Genomic DNA. Translation: ABQ87752.1.
RefSeq	YP_001274120.1. NC_009515.1.
3D structure databases
ProteinModelPortal	A5UNH4.
SMR	A5UNH4. Positions 1-234.
ModBase	Search...
Protein-protein interaction databases
STRING	A5UNH4.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	5216568.
GenomeReviews	Gene locus Msm_1547 in contig CP000678_GR.
KEGG	msi:Msm_1547.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	arNOG05989.
HOGENOM	HBG306070.
OMA	YKDDALG.
ProtClustDB	PRK09362.
Family and domain databases
HAMAP	MF_00137. SAICAR_synth. [Tree]
InterPro	IPR013816. ATP_grasp_subdomain_2. IPR001636. SAICAR_synth. IPR018236. SAICAR_synthetase_CS. [Graphical view]
Gene3D	G3DSA:3.30.470.20. ATP_grasp_subdomain_2. 1 hit.
KO	K01923.
PANTHER	PTHR11609. SAICAR_synt. 1 hit.
Pfam	PF01259. SAICAR_synt. 1 hit. [Graphical view]
TIGRFAMs	TIGR00081. PurC. 1 hit.
PROSITE	PS01057. SAICAR_SYNTHETASE_1. 1 hit. PS01058. SAICAR_SYNTHETASE_2. False negative. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PUR7_METS3

Accession

Primary (citable) accession number: A5UNH4

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	July 10, 2007
Last modified:	November 16, 2011
This is version 28 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program