P12352 (PSAE_CHLRE) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Photosystem I reaction center subunit IV, chloroplastic
Short name=PSI-E

Alternative name(s):
P30 protein
Photosystem I 8.1 kDa protein

Gene names

Name:

PSAE

Organism

Chlamydomonas reinhardtii (Chlamydomonas smithii)

Taxonomic identifier

3055 [NCBI]

Taxonomic lineage

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

Protein attributes

Sequence length	97 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	Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase By similarity.
Subunit structure	Interacts with ALB3.1, which is essential for its insertion into thylakoid membrane. Ref.2
Subcellular location	Plastid › chloroplast thylakoid membrane; Peripheral membrane protein By similarity.
Sequence similarities	Belongs to the PsaE family.

Ontologies

Keywords
Biological process	Photosynthesis
Cellular component	Chloroplast Membrane 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 thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell photosystem I reaction center Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Binary interactions

With	Entry	#Exp.	IntAct	Notes
PSAF	P12356	1	EBI-601819,EBI-601814

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Transit peptide	1 – 24	24	Chloroplast
	Chain	25 – 97	73	Photosystem I reaction center subunit IV, chloroplastic		PRO_0000029380

Sequences

	Sequence		Length	Mass (Da)
	P12352 [UniParc]. Last modified October 1, 1989. Version 1. Checksum: 3FA1DE3B3C27A7AD	FASTA	97	10,770
	10 20 30 40 50 60 MQALSSRVNI AAKPQRAQRL VVRAEEVKAA PKKEVGPKRG SLVKILRPES YWFNQVGKVV 70 80 90 SVDQSGVRYP VVVRFENQNY AGVTTNNYAL DEVVAAK

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 [MRNA], PARTIAL PROTEIN SEQUENCE. Strain: 137c / CC-125.
[2]	"Loss of Albino3 leads to the specific depletion of the light-harvesting system." Bellafiore S., Ferris P., Naver H., Goehre V., Rochaix J.-D. Plant Cell 14:2303-2314(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH ALB3.1.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	X13496 mRNA. Translation: CAA31850.1.
PIR	S04134.
RefSeq	XP_001702611.1. XM_001702559.1.
UniGene	Cre.6397.
3D structure databases
ProteinModelPortal	P12352.
SMR	P12352. Positions 38-94.
ModBase	Search...
Protein-protein interaction databases
IntAct	P12352. 4 interactions.
Proteomic databases
PRIDE	P12352.
ProMEX	P12352.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	5728289.
KEGG	cre:CHLREDRAFT_76146.
Phylogenomic databases
eggNOG	NOG08807.
KO	K02693.
OMA	GVRYPVV.
ProtClustDB	PLN00045.
Enzyme and pathway databases
BioCyc	MetaCyc:CHLREDRAFT_76146-MONOMER.
Family and domain databases
InterPro	IPR008990. Elect_transpt_acc-like_dom. IPR003375. PSI_PsaE. [Graphical view]
Pfam	PF02427. PSI_PsaE. 1 hit. [Graphical view]
ProDom	PD004772. PSI_PsaE. 1 hit. [Graphical view] [Entries sharing at least one domain]
SUPFAM	SSF50090. E_transp_acc. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PSAE_CHLRE

Accession

Primary (citable) accession number: P12352

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1989
Last sequence update:	October 1, 1989
Last modified:	April 3, 2013
This is version 85 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program