Q6G1A4 (PURA_BARQU) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Adenylosuccinate synthetase
Short name=AMPSase
Short name=AdSS
EC=6.3.4.4

Alternative name(s):
IMP--aspartate ligase

Gene names

Name:	purA
Ordered Locus Names:	BQ02800

Organism

Bartonella quintana (strain Toulouse) (Rochalimaea quintana) [Complete proteome] [HAMAP]

Taxonomic identifier

283165 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Bartonellaceae › Bartonella

Protein attributes

Sequence length	429 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first commited step in the biosynthesis of AMP from IMP By similarity. HAMAP MF_00011
Catalytic activity	GTP + IMP + L-aspartate = GDP + phosphate + N(6)-(1,2-dicarboxyethyl)-AMP. HAMAP MF_00011
Cofactor	Binds 1 magnesium ion per subunit By similarity. HAMAP MF_00011
Pathway	Purine metabolism; AMP biosynthesis via de novo pathway; AMP from IMP: step 1/2. HAMAP MF_00011
Subunit structure	Homodimer By similarity. HAMAP MF_00011
Subcellular location	Cytoplasm By similarity HAMAP MF_00011.
Sequence similarities	Belongs to the adenylosuccinate synthetase family.

Ontologies

Keywords
Biological process	Purine biosynthesis
Cellular component	Cytoplasm
Ligand	GTP-binding Magnesium Metal-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
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	GTP binding Inferred from electronic annotation. Source: UniProtKB-KW adenylosuccinate synthase activity Inferred from electronic annotation. Source: EC magnesium ion 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
	Chain	1 – 429	429	Adenylosuccinate synthetase HAMAP MF_00011		PRO_0000224258
Regions
	Nucleotide binding	12 – 18	7	GTP By similarity
	Nucleotide binding	40 – 42	3	GTP By similarity
	Nucleotide binding	330 – 332	3	GTP By similarity
	Nucleotide binding	412 – 414	3	GTP By similarity
	Region	13 – 16	4	IMP binding By similarity
	Region	38 – 41	4	IMP binding By similarity
	Region	298 – 304	7	Substrate binding By similarity
Sites
	Active site	13	1	Proton acceptor By similarity
	Active site	41	1	Proton donor By similarity
	Metal binding	13	1	Magnesium By similarity
	Metal binding	40	1	Magnesium; via carbonyl oxygen By similarity
	Binding site	129	1	IMP By similarity
	Binding site	143	1	IMP; shared with dimeric partner By similarity
	Binding site	223	1	IMP By similarity
	Binding site	238	1	IMP By similarity
	Binding site	302	1	IMP By similarity
	Binding site	304	1	GTP By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q6G1A4 [UniParc]. Last modified July 19, 2004. Version 1. Checksum: 1DA62063C32F966E	FASTA	429	46,993
	10 20 30 40 50 60 MANVVVVGTQ WGDEGKGKIV DWLSERADIV VRYQGGHNAG HTLVVNGVNY KLSLLPSGLV 70 80 90 100 110 120 RGKLSIIGNG VVVDPHHFVA ELKKLRDQGV KITPEILRIA ENAPLILSLH RDLDATRESG 130 140 150 160 170 180 LSGLKIGTTK RGIGPAYEDK VGRRAIRVMD LAETNTLMAK IERLLAHHNA LRRGMGVAEI 190 200 210 220 230 240 NSQALYDELM QVADEILPFM DCTWRLLDES YQVGKHVLFE GAQGALLDND FGTYPYVTSS 250 260 270 280 290 300 NTVAGQACTG SGIGPGVIHY VLGIAKAYTT RVGEGPFPTE QINDIGEFLG MRGKEFGVVT 310 320 330 340 350 360 GRKRRCGWFD AVLVRQMVTI CGVQGIALTK LDVLDGLDEI KICIGYELDG KRINYLPSSM 370 380 390 400 410 420 GAQARVMPVY ETLEGWKEAT AHALSWEDLP PQAVKYIRYI EKLINARVAL LSTSPEREDT ILVTDPFAD

References

[1]

"The louse-borne human pathogen Bartonella quintana is a genomic derivative of the zoonotic agent Bartonella henselae." Alsmark U.C.M., Frank A.C., Karlberg E.O., Legault B.-A., Ardell D.H., Canbaeck B., Eriksson A.-S., Naeslund A.K., Handley S.A., Huvet M., La Scola B., Holmberg M., Andersson S.G.E. Proc. Natl. Acad. Sci. U.S.A. 101:9716-9721(2004) [PubMed: 15210978] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Toulouse.

Cross-references

Sequence databases
EMBL GenBank DDBJ	BX897700 Genomic DNA. Translation: CAF25781.1.
RefSeq	YP_031971.1. NC_005955.1.
3D structure databases
ProteinModelPortal	Q6G1A4.
SMR	Q6G1A4. Positions 2-428.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	2867279.
GenomeReviews	Gene locus BQ02800 in contig BX897700_GR.
KEGG	bqu:BQ02800.
NMPDR	fig|283165.1.peg.241.
PATRIC	31951767. VBIBarQui58630_0321.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG658237.
OMA	YDELMQV.
PhylomeDB	Q6G1A4.
ProtClustDB	PRK01117.
Enzyme and pathway databases
BioCyc	BQUI283165:BQ02800-MONOMER.
Family and domain databases
HAMAP	MF_00011. Adenylosucc_synth. [Tree]
InterPro	IPR018220. Adenylosuccinate_synthase_AS. IPR001114. Adenylosuccinate_synthetase. [Graphical view]
KO	K01939.
PANTHER	PTHR11846. Asucc_synthtase. 1 hit.
Pfam	PF00709. Adenylsucc_synt. 1 hit. [Graphical view]
SMART	SM00788. Adenylsucc_synt. 1 hit. [Graphical view]
TIGRFAMs	TIGR00184. PurA. 1 hit.
PROSITE	PS01266. ADENYLOSUCCIN_SYN_1. 1 hit. PS00513. ADENYLOSUCCIN_SYN_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PURA_BARQU

Accession

Primary (citable) accession number: Q6G1A4

Entry history

Integrated into UniProtKB/Swiss-Prot:	March 7, 2006
Last sequence update:	July 19, 2004
Last modified:	January 25, 2012
This is version 54 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program