Reviewed, UniProtKB/Swiss-Prot P11448 (CYC6_BRYMA)

Names and origin

Protein names

Recommended name:
    Cytochrome c6
Alternative name(s):
    Soluble cytochrome f
    Cytochrome c-553
    Cytochrome c553

Gene names

Name:

petJ

Organism

Bryopsis maxima (Green alga)

Taxonomic identifier

3129 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Chlorophyta › Ulvophyceae › Bryopsidales › Bryopsidaceae › Bryopsis

Protein attributes

Sequence length	88 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Functions as an electron carrier between membrane-bound cytochrome b6-f and photosystem I in oxygenic photosynthesis.
Subunit structure	Monomer.
Subcellular location	Plastid › chloroplast thylakoid lumen.
Post-translational modification	Binds 1 heme group per subunit.
Sequence similarities	Belongs to the cytochrome c family. PetJ subfamily.
Biophysicochemical properties	Redox potential: E0 is +385 mV.

Ontologies

Keywords
Biological process	Electron transport Photosynthesis Transport
Cellular component	Chloroplast Plastid Thylakoid
Ligand	Heme Iron Metal-binding
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	chloroplast Inferred from electronic annotation. Source: UniProtKB-KW thylakoid 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 iron 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 – 88	88	Cytochrome c6		PRO_0000208672
Sites
	Metal binding	19	1	Iron (heme axial ligand)
	Metal binding	61	1	Iron (heme axial ligand)
	Binding site	15	1	Heme (covalent)
	Binding site	18	1	Heme (covalent)

Sequences

	Sequence		Length	Mass (Da)
	P11448-1 [UniParc]. Last modified October 1, 1989. Version 1. Checksum: EFDE2C2680175E01	FASTA	88	9,286
	10 20 30 40 50 60 GGDLEIGADV FTGNCAACHA GGANSVEPLK TLNKEDVTKY LDGGLSIEAI TSQVRNGKGA 70 80 MPAWSDRLDD EEIDGVVAYV FKNINEGW

References

[1]	"Studies on algal cytochromes VI: some properties and amino acid sequence of cytochrome c6 from a green alga, Bryopsis maxima." Okamoto Y., Minami Y., Matsubara H., Sugimura Y. J. Biochem. 102:1251-1260(1987) [PubMed: 3481367] [Abstract] Cited for: PROTEIN SEQUENCE, CHARACTERIZATION.

Cross-references

Sequence databases
PIR	CCBM6. A30021.
3D structure databases
HSSP	HSSP built from PDB template 1CYJ based on UniProtKB P08197.
ModBase	Search...
Family and domain databases
InterPro	IPR009056. Cyt_c_monohaem. IPR003088. Cyt_CI. IPR008168. Cyt_CIC. IPR002323. Cyt_CIE. [Graphical view]
Gene3D	G3DSA:1.10.760.10. Cytochrome_c_R. 1 hit.
Pfam	PF00034. Cytochrom_C. 1 hit. [Graphical view]
PRINTS	PR00605. CYTCHROMECIC. PR00607. CYTCHROMECIE.
PROSITE	PS51007. CYTC. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CYC6_BRYMA

Accession

Primary (citable) accession number: P11448

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1989
Last sequence update:	October 1, 1989
Last modified:	November 25, 2008
This is version 59 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)