Reviewed, UniProtKB/Swiss-Prot P57122 (ATPA_BUCAI)

Names and origin

Protein names

Recommended name:
    ATP synthase subunit alpha
      Short name=ATPase subunit alpha
    EC=3.6.3.14
Alternative name(s):
    ATP synthase F1 sector subunit alpha

Gene names

Name:	atpA
Ordered Locus Names:	BU006

Organism

Buchnera aphidicola subsp. Acyrthosiphon pisum (Acyrthosiphon pisum symbiotic bacterium) [Complete proteome] [HAMAP]

Taxonomic identifier

118099 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Buchnera

Protein attributes

Sequence length	512 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit.
Catalytic activity	ATP + H(2)O + H(+)(In) = ADP + phosphate + H(+)(Out).
Subunit structure	F-type ATPases have 2 components, CF(1) - the catalytic core - and CF(0) - the membrane proton channel. CF(1) has five subunits: alpha(3), beta(3), gamma(1), delta(1), epsilon(1). CF(0) has three main subunits: a(1), b(2) and c(9-12). The alpha and beta chains form an alternating ring which encloses part of the gamma chain. CF(1) is attached to CF(0) by a central stalk formed by the gamma and epsilon chains, while a peripheral stalk is formed by the delta and b chains By similarity.
Subcellular location	Cell membrane; Peripheral membrane proteinBy similarity.
Sequence similarities	Belongs to the ATPase alpha/beta chains family.

Ontologies

Keywords
Biological process	ATP synthesis Hydrogen ion transport Ion transport Transport
Cellular component	CF(1) Cell membrane Membrane
Ligand	ATP-binding Nucleotide-binding
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	plasma membrane ATP synthesis coupled proton transport Inferred from electronic annotation. Source: HAMAP
Molecular function	ATP binding Inferred from electronic annotation. Source: HAMAP hydrogen ion transporting ATP synthase activity, rotational mechanism Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view
Molecule processing
	Chain	1 – 512	512	ATP synthase subunit alpha
Regions
	Nucleotide binding	169 – 176	8	ATP Potential
Sites
	Site	373	1	Required for activity

Sequences

	Sequence		Length	Mass (Da)
	P57122-1 [UniParc]. Last modified December 1, 2000. Version 1. Checksum: 95B9681A3235D687	FASTA	512	56,636
	10 20 30 40 50 60 MRLNSTEISK LIKERIAQFE VFNQSYNEGS IISVSDGIIK INGLSNVMLG EMILLPNNEY 70 80 90 100 110 120 AIALNIERDT VGAVVMGPYI HISEGAKVRC TGKILEVPVG DNFLGRVVNA LGFPIDGKDS 130 140 150 160 170 180 IQNDGFFPVE ADAPGVIDRK SVNQPIQTGY KVIDSMIPIG RGQRELIIGD RQTGKTALAI 190 200 210 220 230 240 DTIINQKQSG IKCIYVAIGQ KLSTIINVVK KLEENNALFN TIIVVASASE AASLQYLAPY 250 260 270 280 290 300 SGCAMAEFFR NKGEDSLIIY DDLSKHAVAY RQISLLLRRP PGREAFPGDI FYLHSRLLER 310 320 330 340 350 360 ASRVSMEYVQ KITKNKITGK TGSITALPII ETQSGDVSAF VPTNVISITD GQIFLESNLF 370 380 390 400 410 420 NSGIRPAVNP GISVSRVGSA AQTTIIKKLS SGIRTALAQY QELAAFSQFS SDLDDTTRKQ 430 440 450 460 470 480 LNHGQKITEL LKQKQYSPIS IAEQALILFV AENNFLDDIS IDKITKFEKE ILIYAHNYYF 490 500 510 DLMEEINKTG DFNIVIKDKF IKLITEFKKN QF

References

[1]	"Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS." Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H. Nature 407:81-86(2000) [PubMed: 10993077] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Tokyo 1998.

Cross-references

Sequence databases
EMBLGenBankDDBJ	BA000003 Genomic DNA. Translation: BAB12734.1.
RefSeq	NP_239848.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1109515.
GenomeReviews	Gene locus BU006 in contig BA000003_GR.
KEGG	buc:BU006.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	P57122.
Enzyme and pathway databases
BioCyc	BSP107806:BU006-MON.
Family and domain databases
HAMAP	MF_01346. [Tree]
InterPro	IPR000793. ATPase_a_b_C. IPR004100. ATPase_a_b_N. IPR000194. ATPase_a_b_nl_bd. IPR005294. ATPase_F1_a. IPR017458. ATPase_F1_asu_C. IPR002035. VWF_A. [Graphical view]
PANTHER	PTHR15184:SF3. ATPase_F1_a. 1 hit.
Pfam	PF00006. ATP-synt_ab. 1 hit. PF00306. ATP-synt_ab_C. 1 hit. PF02874. ATP-synt_ab_N. 1 hit. [Graphical view]
PRINTS	PR00453. VWFADOMAIN.
TIGRFAMs	TIGR00962. atpA. 1 hit.
PROSITE	PS00152. ATPASE_ALPHA_BETA. 1 hit. [Graphical view]
ProDom	P57122. [Graphical view] [Entries sharing at least one domain]
BLOCKS	Search...
Other Resources
ProtoNet	Search...

Entry information

Entry name

ATPA_BUCAI

Accession

Primary (citable) accession number: P57122

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 1, 2000
Last sequence update:	December 1, 2000
Last modified:	September 2, 2008
This is version 56 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)