Reviewed, UniProtKB/Swiss-Prot P00840 (ATP9_MAIZE)

Names and origin

Protein names

Recommended name:
    ATP synthase subunit 9, mitochondrial
    EC=3.6.3.14
Alternative name(s):
    Lipid-binding protein

Gene names

Name:

ATP9

Encoded on

Mitochondrion

Organism

Zea mays (Maize)

Taxonomic identifier

4577 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › Liliopsida › Poales › Poaceae › PACCAD clade › Panicoideae › Andropogoneae › Zea

Protein attributes

Sequence length	74 AA.
Sequence status	Complete.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	This protein is one of the chains of the nonenzymatic membrane component (F0) of mitochondrial ATPase.
Catalytic activity	ATP + H2O + H+(In) = ADP + phosphate + H+(Out).
Subunit structure	F-type ATPases have 2 components, CF1 - the catalytic core - and CF0 - the membrane proton channel. CF1 has five subunits: alpha3, beta3, gamma1, delta1, epsilon1. CF0 has three main subunits: a, b and c.
Subcellular location	Mitochondrion membrane; Multi-pass membrane protein Potential.
Sequence similarities	Belongs to the ATPase C chain family.
RNA editing	Edited at positions 7, 28, 31, 45, 61, 64 and 71. Ref.3

Ontologies

Keywords
Biological process	Hydrogen ion transport Ion transport Transport
Cellular component	CF(0) Membrane Mitochondrion
Coding sequence diversity	RNA editing
Domain	Transmembrane
Ligand	ATP-binding Lipid-binding Nucleotide-binding
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 mitochondrion 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	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW hydrogen ion transmembrane transporter activity Inferred from electronic annotation. Source: InterPro lipid binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 74	74	ATP synthase subunit 9, mitochondrial		PRO_0000112214
Regions
	Transmembrane	8 – 28	21	Potential
	Transmembrane	45 – 72	28	Potential
Sites
	Site	57	1	Reversibly protonated during proton transport By similarity

Sequences

	Sequence		Length	Mass (Da)
	P00840-1 [UniParc]. Last modified February 1, 2005. Version 2. Checksum: CA932F847058F5E3	FASTA	74	7,557
	10 20 30 40 50 60 MLEGAKLIGA GAATIALAGA AVGIGNVFSS LIHSVARNPS LAKQLFGYAI LGFALTEAIA 70 LFALMMAFLI LFVF

References

[1]	"Nucleotide sequence of F0-ATPase proteolipid (subunit 9) gene of maize mitochondria." Dewey R.E., Schuster A.M., Levings C.S. III, Timothy D.H. Proc. Natl. Acad. Sci. U.S.A. 82:1015-1019(1985) [PubMed: 16593542] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"The tobacco mitochondrial ATPase subunit 9 gene is closely linked to an open reading frame for a ribosomal protein." Bland M.M., Levings C.S. III, Matzinger D.F. Mol. Gen. Genet. 204:8-16(1986) [PubMed: 2875379] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: cv. B73.
[3]	"Developmental- and tissue-specificity of RNA editing in mitochondria of suspension-cultured maize cells and seedlings." Grosskopf D., Mulligan R.M. Curr. Genet. 29:556-563(1996) [PubMed: 8662195] [Abstract] Cited for: RNA EDITING.

Cross-references

Sequence databases
EMBL GenBank DDBJ	M10408 Genomic DNA. Translation: AAA70271.1. Sequence problems. M18339 Genomic DNA. Translation: AAA70273.1. Sequence problems.
PIR	LWZMA. A01041.
3D structure databases
SMR	P00840. Positions 3-74.
ModBase	Search...
Proteomic databases
PRIDE	P00840.
Organism-specific databases
Gramene	P00840.
MaizeGDB	69203.
Enzyme and pathway databases
BRENDA	3.6.3.14. 289.
Family and domain databases
InterPro	IPR000454. ATPase_F0-cplx_csu. IPR020537. ATPase_F0-cplx_csu_DDCD_BS. IPR002379. ATPase_F0/V0-cplx_csu. [Graphical view]
Gene3D	G3DSA:1.20.20.10. ATPase_F0/V0_c. 1 hit.
Pfam	PF00137. ATP-synt_C. 1 hit. [Graphical view]
PRINTS	PR00124. ATPASEC.
PROSITE	PS00605. ATPASE_C. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

ATP9_MAIZE

Accession

Primary (citable) accession number: P00840

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 21, 1986
Last sequence update:	February 1, 2005
Last modified:	January 19, 2010
This is version 72 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)