Reviewed, UniProtKB/Swiss-Prot A8AC69 (GUAAA_IGNH4)

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:	Igni_1345

Organism

Ignicoccus hospitalis (strain KIN4/I / DSM 18386 / JCM 14125) [Complete proteome] [HAMAP]

Taxonomic identifier

453591 [NCBI]

Taxonomic lineage

Archaea › Crenarchaeota › Thermoprotei › Desulfurococcales › Desulfurococcaceae › Ignicoccus

Protein attributes

Sequence length	188 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 – 188	188	GMP synthase [glutamine-hydrolyzing] subunit A HAMAP MF_01510		PRO_0000316092
Regions
	Domain	3 – 188	186	Glutamine amidotransferase type-1
Sites
	Active site	79	1	Nucleophile By similarity
	Active site	166	1	By similarity
	Active site	168	1	By similarity

Sequences

	Sequence		Length	Mass (Da)
	A8AC69-1 [UniParc]. Last modified October 23, 2007. Version 1. Checksum: AFC979A8F3504913	FASTA	188	21,143
	10 20 30 40 50 60 MVKVLVVAFG GQYNHLIKRS IERIGHEAAL RPYNLPPPDE GEFDCVVFGG GPLTMPKDFD 70 80 90 100 110 120 KVKGLEAYLR WKKPLLGICL GHQVLALLNG GEVGPSPKPE YGDVTIFVDD EDDILRGLAP 130 140 150 160 170 180 SFRAWESHNE EVLREPPNSK VIAHSENTRV QALKYYNGPY YGVQFHPEVQ HTEKGSLVFQ NFVELCKR

References

[1]

"Unicellular symbiosis at high temperature: genomic insights into the Ignicoccus hospitalis - Naoarchaeum equitans relationship." Podar M., Anderson I., Ivanova N., Wall M., Mavrommatis K., Lykidis A., Chen J., Hudson M., Deciu C., Hutchison D., Eads J., Fernandes F., Tamang D., Szeto E., Land M., Lapidus A., Kyrpides N., Chang C. , Saier M., Eisen J., Rachel R., Huber H., Keller M., Richardson P., Stetter K. Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000816 Genomic DNA. Translation: ABU82521.1.
RefSeq	YP_001435928.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	A8AC69.
Genome annotation databases
GeneID	5563166.
GenomeReviews	Gene locus Igni_1345 in contig CP000816_GR.
KEGG	iho:Igni_1345.
Organism-specific databases
CMR	Search...
Phylogenomic databases
OMA	GQYVHRI.
Family and domain databases
HAMAP	MF_01510. Divergent sequence. [Tree]
InterPro	IPR006220. Anth_synthII. IPR001317. CarbamoylP_synth_GATase. IPR011702. GATASE. IPR017926. GATASE_1. IPR000991. GATase_class1_C. [Graphical view]
Pfam	PF00117. GATase. 1 hit. [Graphical view]
PRINTS	PR00097. ANTSNTHASEII. PR00099. CPSGATASE. PR00096. GATASE.
PROSITE	PS51273. GATASE_TYPE_1. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

GUAAA_IGNH4

Accession

Primary (citable) accession number: A8AC69

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	October 23, 2007
Last modified:	November 3, 2009
This is version 16 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)