Reviewed, UniProtKB/Swiss-Prot O23138 (CYC2_ARATH)

Names and origin

Protein names

Recommended name:
    Probable cytochrome c At1g22840

Gene names

Ordered Locus Names:	At1g22840
ORF Names:	F19G10.20

Organism

Arabidopsis thaliana (Mouse-ear cress) [Complete proteome]

Taxonomic identifier

3702 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › eurosids II › Brassicales › Brassicaceae › Arabidopsis

Protein attributes

Sequence length	114 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain By similarity.
Subcellular location	Mitochondrion matrix.
Post-translational modification	Binds 1 heme group per subunit By similarity.
Sequence similarities	Belongs to the cytochrome c family.

Ontologies

Keywords
Biological process	Electron transport Respiratory chain Transport
Cellular component	Mitochondrion
Coding sequence diversity	Alternative splicing
Ligand	Heme Iron Metal-binding
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	cell proliferation Traceable author statement. Source: TAIR electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	mitochondrial matrix Inferred from electronic annotation. Source: UniProtKB-SubCell plasma membrane Inferred from direct assay. Source: TAIR respiratory chain Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	electron carrier activity Inferred from electronic annotation. Source: InterPro heme binding Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Alternative products

This entry describes 1 isoform produced by alternative splicing. [Select]

Note: A number of isoforms are produced. According to EST sequences.

Isoform 1 (identifier: O23138-1)

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 114	114	Probable cytochrome c At1g22840		PRO_0000108285
Sites
	Metal binding	27	1	Iron (heme axial ligand) By similarity
	Metal binding	89	1	Iron (heme axial ligand) By similarity
	Binding site	23	1	Heme (covalent) By similarity
	Binding site	26	1	Heme (covalent) By similarity

Sequences

	Sequence		Length	Mass (Da)
	Isoform 1 [UniParc]. Last modified January 1, 1998. Version 1. Checksum: AB9E7BD40AFF2C62	FASTA	114	12,394
	10 20 30 40 50 60 MASFDEAPPG NAKAGEKIFR TKCAQCHTVE AGAGHKQGPN LNGLFGRQSG TTAGYSYSAA 70 80 90 100 110 NKNKAVEWEE KALYDYLLNP KKYIPGTKMV FPGLKKPQDR ADLIAYLKES TAPK

References

[1]	"Sequence and analysis of chromosome 1 of the plant Arabidopsis thaliana." Theologis A., Ecker J.R., Palm C.J., Federspiel N.A., Kaul S., White O., Alonso J., Altafi H., Araujo R., Bowman C.L., Brooks S.Y., Buehler E., Chan A., Chao Q., Chen H., Cheuk R.F., Chin C.W., Chung M.K. , Conn L., Conway A.B., Conway A.R., Creasy T.H., Dewar K., Dunn P., Etgu P., Feldblyum T.V., Feng J.-D., Fong B., Fujii C.Y., Gill J.E., Goldsmith A.D., Haas B., Hansen N.F., Hughes B., Huizar L., Hunter J.L., Jenkins J., Johnson-Hopson C., Khan S., Khaykin E., Kim C.J., Koo H.L., Kremenetskaia I., Kurtz D.B., Kwan A., Lam B., Langin-Hooper S., Lee A., Lee J.M., Lenz C.A., Li J.H., Li Y.-P., Lin X., Liu S.X., Liu Z.A., Luros J.S., Maiti R., Marziali A., Militscher J., Miranda M., Nguyen M., Nierman W.C., Osborne B.I., Pai G., Peterson J., Pham P.K., Rizzo M., Rooney T., Rowley D., Sakano H., Salzberg S.L., Schwartz J.R., Shinn P., Southwick A.M., Sun H., Tallon L.J., Tambunga G., Toriumi M.J., Town C.D., Utterback T., Van Aken S., Vaysberg M., Vysotskaia V.S., Walker M., Wu D., Yu G., Fraser C.M., Venter J.C., Davis R.W. Nature 408:816-820(2000) [PubMed: 11130712] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: cv. Columbia.
[2]	"Empirical analysis of transcriptional activity in the Arabidopsis genome." Yamada K., Lim J., Dale J.M., Chen H., Shinn P., Palm C.J., Southwick A.M., Wu H.C., Kim C.J., Nguyen M., Pham P.K., Cheuk R.F., Karlin-Newmann G., Liu S.X., Lam B., Sakano H., Wu T., Yu G. , Miranda M., Quach H.L., Tripp M., Chang C.H., Lee J.M., Toriumi M.J., Chan M.M., Tang C.C., Onodera C.S., Deng J.M., Akiyama K., Ansari Y., Arakawa T., Banh J., Banno F., Bowser L., Brooks S.Y., Carninci P., Chao Q., Choy N., Enju A., Goldsmith A.D., Gurjal M., Hansen N.F., Hayashizaki Y., Johnson-Hopson C., Hsuan V.W., Iida K., Karnes M., Khan S., Koesema E., Ishida J., Jiang P.X., Jones T., Kawai J., Kamiya A., Meyers C., Nakajima M., Narusaka M., Seki M., Sakurai T., Satou M., Tamse R., Vaysberg M., Wallender E.K., Wong C., Yamamura Y., Yuan S., Shinozaki K., Davis R.W., Theologis A., Ecker J.R. Science 302:842-846(2003) [PubMed: 14593172] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Strain: cv. Columbia.
[3]	"Full-length cDNA from Arabidopsis thaliana." Brover V.V., Troukhan M.E., Alexandrov N.A., Lu Y.-P., Flavell R.B., Feldmann K.A. Submitted (MAR-2002) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[4]	"Experimental analysis of the Arabidopsis mitochondrial proteome highlights signaling and regulatory components, provides assessment of targeting prediction programs, and indicates plant-specific mitochondrial proteins." Heazlewood J.L., Tonti-Filippini J.S., Gout A.M., Day D.A., Whelan J., Millar A.H. Plant Cell 16:241-256(2004) [PubMed: 14671022] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS], SUBCELLULAR LOCATION [LARGE SCALE ANALYSIS].
+	Additional computationally mapped references.

Web resources

Protein Spotlight

Life shuttle - Issue 76 of November 2006

Cross-references

Sequence databases
EMBLGenBankDDBJ	AF000657 Genomic DNA. Translation: AAB72175.1. AY062853 mRNA. Translation: AAL32931.1. AY114580 mRNA. Translation: AAM47899.1. AY087108 mRNA. Translation: AAM64666.1.
IPI	IPI00538949.
PIR	C86362.
RefSeq	NP_173697.1.
UniGene	At.48220
3D structure databases
SMR	O23138. Positions 2-112.
ModBase	Search...
Protein-protein interaction databases
IntAct	O23138. 2 interactions.
STRING	O23138.
Proteomic databases
PRIDE	O23138.
ProMEX	O23138.
Genome annotation databases
GeneID	838889.
GenomeReviews	Gene locus AT1G22840 in contig CT485782_GR.
NMPDR	fig|3702.1.peg.2653.
Organism-specific databases
GeneFarm	1711. 128.
TAIR	At1g22840.
Phylogenomic databases
OMA	ANLKEWL
Gene expression databases
ArrayExpress	O23138.
Genevestigator	O23138.
GermOnline	AT1G22840. Arabidopsis thaliana.
Family and domain databases
InterPro	IPR002327. Cyt_c_1A/1B. IPR003088. Cyt_c_I. IPR009056. Cyt_c_monohaem. [Graphical view]
Gene3D	G3DSA:1.10.760.10. Cytochrome_c_R. 1 hit.
PANTHER	PTHR11961. Cyt_CIAB. 1 hit.
Pfam	PF00034. Cytochrom_C. 1 hit. [Graphical view]
PRINTS	PR00604. CYTCHRMECIAB.
PROSITE	PS51007. CYTC. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CYC2_ARATH

Accession

Primary (citable) accession number: O23138

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 17, 2003
Last sequence update:	January 1, 1998
Last modified:	November 24, 2009
This is version 90 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)