Reviewed, UniProtKB/Swiss-Prot Q9ZEC4 (ATPF_RICPR)

Names and origin

Protein names

Recommended name:
    ATP synthase subunit b
Alternative name(s):
    ATP synthase F(0) sector subunit b
    F-type ATPase subunit b
      Short name=F-ATPase subunit b
    ATPase subunit I

Gene names

Name:	atpF
Ordered Locus Names:	RP020

Organism

Rickettsia prowazekii [Complete proteome] [HAMAP]

Taxonomic identifier

782 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rickettsiales › Rickettsiaceae › Rickettsieae › Rickettsia › typhus group

Protein attributes

Sequence length	167 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	F1F0 ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F1 containing the extramembraneous catalytic core and F0 containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F1 is coupled via a rotary mechanism of the central stalk subunits to proton translocation By similarity. Component of the F0 channel, it forms part of the peripheral stalk, linking F1 to F0 By similarity.
Subunit structure	F-type ATPases have 2 components, F1 - the catalytic core - and F0 - the membrane proton channel. F1 has five subunits: alpha3, beta3, gamma1, delta1, epsilon1. F0 has three main subunits: a1, b2 and c(10-14). The alpha and beta chains form an alternating ring which encloses part of the gamma chain. F1 is attached to F0 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 inner membrane; Single-pass membrane protein By similarity.
Sequence similarities	Belongs to the ATPase B chain family.

Ontologies

Keywords
Biological process	ATP synthesis Hydrogen ion transport Ion transport Transport
Cellular component	CF(0) Cell inner membrane Cell membrane Membrane
Domain	Transmembrane
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	ATP synthesis coupled proton transport Inferred from electronic annotation. Source: InterPro
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell plasma membrane Inferred from electronic annotation. Source: UniProtKB-KW proton-transporting ATP synthase complex, coupling factor F(o) Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	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	Feature identifier
Molecule processing
	Chain	1 – 167	167	ATP synthase subunit b HAMAP MF_01398		PRO_0000082385
Regions
	Transmembrane	7 – 25	19	Potential

Sequences

	Sequence		Length	Mass (Da)
	Q9ZEC4-1 [UniParc]. Last modified May 1, 1999. Version 1. Checksum: 2F9C648F14671E8B	FASTA	167	19,475
	10 20 30 40 50 60 MNFLDESFWL TISFVIFVYL IYRPAKKAIL NALDTKISEI QEKVLKAKKL KEDAALLFEQ 70 80 90 100 110 120 TKLQIQKLET LRSQMIEESD KATKQIIQDK TKEMEEFLER KKADAIQLIQ NQKSTASKDL 130 140 150 160 QDEFCDEVIT LVSKYFRSAK LSEKSIAKNL MDKSDFVHND SKATYLH

References

[1]

"The genome sequence of Rickettsia prowazekii and the origin of mitochondria." Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T., Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H., Kurland C.G. Nature 396:133-140(1998) [PubMed: 9823893] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Madrid E.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AJ235270 Genomic DNA. Translation: CAA14491.1.
PIR	D71709.
RefSeq	NP_220414.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	883533.
GenomeReviews	Gene locus RP020 in contig AJ235269_GR.
KEGG	rpr:RP020.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q9ZEC4.
OMA	LRSQMIE
Enzyme and pathway databases
BioCyc	RPRO272947:RP020-MON.
BRENDA	3.6.3.14. 141977.
Family and domain databases
HAMAP	MF_01398. [Tree]
InterPro	IPR002146. ATPase_F0-cplx_b/b'su_bac. [Graphical view]
Pfam	PF00430. ATP-synt_B. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

ATPF_RICPR

Accession

Primary (citable) accession number: Q9ZEC4

Entry history

Integrated into UniProtKB/Swiss-Prot:	May 30, 2000
Last sequence update:	May 1, 1999
Last modified:	November 3, 2009
This is version 50 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)