P12356 (PSAF_CHLRE) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Photosystem I reaction center subunit III, chloroplastic

Alternative name(s):
Light-harvesting complex I 17 kDa protein
P21 protein
PSI-F

Gene names

Name:

PSAF

Organism

Chlamydomonas reinhardtii (Chlamydomonas smithii)

Taxonomic identifier

3055 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Viridiplantae › Chlorophyta › Chlorophyceae › Chlamydomonadales › Chlamydomonadaceae › Chlamydomonas

Protein attributes

Sequence length	227 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	Probably participates in efficiency of electron transfer from plastocyanin to P700 (or cytochrome c553 in algae and cyanobacteria). This plastocyanin-docking protein contributes to the specific association of plastocyanin to PSI.
Subcellular location	Plastid › chloroplast thylakoid lumen.
Sequence similarities	Belongs to the PsaF family.

Ontologies

Keywords
Biological process	Photosynthesis
Cellular component	Chloroplast Photosystem I Plastid Thylakoid
Domain	Transit peptide
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological_process	photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	chloroplast envelope Inferred from electronic annotation. Source: EnsemblPlants/Gramene chloroplast thylakoid lumen Inferred from electronic annotation. Source: UniProtKB-SubCell chloroplast thylakoid membrane Inferred from electronic annotation. Source: EnsemblPlants/Gramene photosystem I reaction center Inferred from electronic annotation. Source: InterPro plastoglobule Inferred from electronic annotation. Source: EnsemblPlants/Gramene
Complete GO annotation...

Binary interactions

With	Entry	#Exp.	IntAct	Notes
psaD	Q39615	2	EBI-601814,EBI-601809

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Transit peptide	1 – 62	62	Chloroplast
	Chain	63 – 227	165	Photosystem I reaction center subunit III, chloroplastic		PRO_0000029343
Natural variations
	Natural variant	167	1	G → D.

Sequences

	Sequence		Length	Mass (Da)
	P12356 [UniParc]. Last modified October 1, 1989. Version 1. Checksum: DFF1C7B8EC8CB536	FASTA	227	24,057
	10 20 30 40 50 60 MALTMRNPAV KASSRVAPSS RRALRVACQA QKNETASKVG TALAASALAA AVSLSAPSAA 70 80 90 100 110 120 MADIAGLTPC SESKAYAKLE KKELKTLEKR LKQYEADSAP AVALKATMER TKARFANYAK 130 140 150 160 170 180 AGLLCGNDGL PHLIADPGLA LKYGHAGEVF IPTFGFLYVA GYIGYVGRQY LIAVKGEAKP 190 200 210 220 TDKEIIIDVP LATKLAWQGA GWPLAAVQEL QRGTLLEKEE NITVSPR

References

[1]	"Isolation and characterization of cDNA clones encoding the 17.9 and 8.1 kDa subunits of photosystem I from Chlamydomonas reinhardtii." Franzen L.-G., Frank G., Zuber H., Rochaix J.-D. Plant Mol. Biol. 12:463-474(1989) Cited for: NUCLEOTIDE SEQUENCE, PARTIAL PROTEIN SEQUENCE. Strain: 137c / CC-125.
[2]	"Chlamydomonas reinhardtii psaF gene encoding subunit F of photosystem I." Stevens D.R., Hippler M., Rochaix J.-D., Purton S. Submitted (MAR-1999) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE. Strain: 137C / CW15.

Cross-references

Sequence databases
EMBL GenBank DDBJ	X13495 mRNA. Translation: CAA31849.1. AF135791 Genomic DNA. Translation: AAD27871.1.
PIR	S04133.
RefSeq	XP_001696798.1. XM_001696746.1.
UniGene	Cre.13198.
3D structure databases
ProteinModelPortal	P12356.
SMR	P12356. Positions 63-217.
ModBase	Search...
Protein-protein interaction databases
DIP	DIP-34986N.
IntAct	P12356. 6 interactions.
Proteomic databases
PRIDE	P12356.
ProMEX	P12356.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	5722300.
KEGG	cre:CHLREDRAFT_130914.
Phylogenomic databases
eggNOG	NOG08121.
KO	K02694.
OMA	YVAGWIG.
ProtClustDB	PLN00019.
Enzyme and pathway databases
BioCyc	MetaCyc:CHLREDRAFT_130914-MONOMER.
Family and domain databases
Gene3D	1.10.8.110. 1 hit.
InterPro	IPR003666. PSI_PsaF. [Graphical view]
Pfam	PF02507. PSI_PsaF. 1 hit. [Graphical view]
SUPFAM	SSF81536. PSI_PsaF. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PSAF_CHLRE

Accession

Primary (citable) accession number: P12356

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1989
Last sequence update:	October 1, 1989
Last modified:	April 3, 2013
This is version 75 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program