Reviewed, UniProtKB/Swiss-Prot Q3ITY2 (GUAAA_NATPD)

Names and origin

Protein names

Recommended name:
    GMP synthase [glutamine-hydrolyzing] subunit A
    EC=6.3.5.2
Alternative name(s):
    Glutamine amidotransferase

Gene names

Name:	guaAA
Ordered Locus Names:	NP0620A

Organism

Natronomonas pharaonis (strain DSM 2160 / ATCC 35678) [Complete proteome] [HAMAP]

Taxonomic identifier

348780 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Halobacteria › Halobacteriales › Halobacteriaceae › Natronomonas

Protein attributes

Sequence length	184 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the synthesis of GMP from XMP By similarity.
Catalytic activity	ATP + xanthosine 5'-phosphate + L-glutamine + H2O = AMP + diphosphate + GMP + L-glutamate. HAMAP MF_01510
Pathway	Purine metabolism; GMP biosynthesis; GMP from XMP (L-Gln route): step 1/1. HAMAP MF_01510
Subunit structure	Heterodimer composed of a glutamine amidotransferase subunit (A) and a GMP-binding subunit (B) Potential.
Sequence similarities	Contains 1 glutamine amidotransferase type-1 domain.

Ontologies

Keywords
Biological process	GMP biosynthesis Purine biosynthesis
Domain	Glutamine amidotransferase
Ligand	ATP-binding Nucleotide-binding
Molecular function	Ligase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	GMP biosynthetic process Inferred from electronic annotation. Source: HAMAP glutamine metabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW GMP synthase (glutamine-hydrolyzing) activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 184	184	GMP synthase [glutamine-hydrolyzing] subunit A HAMAP MF_01510		PRO_0000140226
Regions
	Domain	3 – 184	182	Glutamine amidotransferase type-1
Sites
	Active site	73	1	Nucleophile By similarity
	Active site	161	1	By similarity
	Active site	163	1	By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q3ITY2-1 [UniParc]. Last modified November 8, 2005. Version 1. Checksum: 733B73D89EA4EC4B	FASTA	184	19,991
	10 20 30 40 50 60 MTRIVVVDNH GQFTHLEHRA LRDLGVDTEL IDNDTPPEEI DADGIVLSGG PDMDRIGHSP 70 80 90 100 110 120 AYLDLDIPVL GICLGMQLMA AELGGRVGAG DYGGYADVTV SIEDESDPLI GSLAPETRVW 130 140 150 160 170 180 ASHADEVKEL PDGFERTATS EVCNIEAMSD TDRNRYGVQW HPEVAHTEAG EEVFENFRDI CAGD

References

[1]	"Living with two extremes: conclusions from the genome sequence of Natronomonas pharaonis." Falb M., Pfeiffer F., Palm P., Rodewald K., Hickmann V., Tittor J., Oesterhelt D. Genome Res. 15:1336-1343(2005) [PubMed: 16169924] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CR936257 Genomic DNA. Translation: CAI48401.1.
RefSeq	YP_325970.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	Q3ITY2.
Genome annotation databases
GeneID	3702780.
GenomeReviews	Gene locus NP0620A in contig CR936257_GR.
KEGG	nph:NP0620A.
NMPDR	fig|348780.3.peg.364.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q3ITY2.
OMA	GQYVHRI.
Enzyme and pathway databases
BioCyc	NPHA348780:NP0620A-MON.
Family and domain databases
HAMAP	MF_01510. [Tree]
InterPro	IPR006220. Anth_synthII. IPR011702. GATASE. IPR017926. GATASE_1. IPR000991. GATase_class1_C. IPR004739. GMP_synth_N. [Graphical view]
Pfam	PF00117. GATase. 1 hit. [Graphical view]
PRINTS	PR00097. ANTSNTHASEII. PR00096. GATASE.
TIGRFAMs	TIGR00888. guaA_Nterm. 1 hit.
PROSITE	PS51273. GATASE_TYPE_1. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

GUAAA_NATPD

Accession

Primary (citable) accession number: Q3ITY2

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 6, 2005
Last sequence update:	November 8, 2005
Last modified:	November 3, 2009
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)