Photosystem I iron-sulfur center - Arabidopsis thaliana (Mouse-ear cress)

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P62090 (PSAC_ARATH) Reviewed, UniProtKB/Swiss-Prot

Last modified January 25, 2012. Version 63. History...

Clusters with 100%, 90%, 50% identity |

Documents (2) |

Third-party data

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Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·Documents Customize order

Names and origin

Protein names

Recommended name:
Photosystem I iron-sulfur center
EC=1.97.1.12

Alternative name(s):
9 kDa polypeptide
PSI-C
Photosystem I subunit VII
PsaC

Gene names

Name:	psaC
Synonyms:	frxA
Ordered Locus Names:	AtCg01060

Encoded on

Plastid; Chloroplast

Organism

Arabidopsis thaliana (Mouse-ear cress)

Taxonomic identifier

3702 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis

Protein attributes

Sequence length	81 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Apoprotein for the two 4Fe-4S centers FA and FB of photosystem I (PSI); essential for photochemical activity. FB is the terminal electron acceptor of PSI, donating electrons to ferredoxin. The C-terminus interacts with psaA/B/D and helps assemble the protein into the PSI complex. Required for binding of psaD and psaE to PSI. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. HAMAP MF_01303
Catalytic activity	Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin. HAMAP MF_01303
Cofactor	Binds 2 4Fe-4S clusters. Cluster 2 is most probably the spectroscopically characterized electron acceptor FA and cluster 1 is most probably FB By similarity.
Subunit structure	The eukaryotic PSI reaction center is composed of at least 11 subunits By similarity.
Subcellular location	Plastid › chloroplast thylakoid membrane; Peripheral membrane protein; Stromal side By similarity HAMAP MF_01303.
Sequence similarities	Contains 2 4Fe-4S ferredoxin-type domains.

Ontologies

Keywords
Biological process	Electron transport Photosynthesis Transport
Cellular component	Chloroplast Membrane Photosystem I Plastid Thylakoid
Domain	Repeat
Ligand	4Fe-4S Iron Iron-sulfur Metal-binding
Molecular function	Oxidoreductase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	photosynthetic electron transport in photosystem I Inferred from electronic annotation. Source: InterPro transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	chloroplast thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell photosystem I Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	4 iron, 4 sulfur cluster binding Inferred from electronic annotation. Source: UniProtKB-KW electron carrier activity Inferred from electronic annotation. Source: InterPro metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW oxidoreductase activity 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

Initiator methionine

Removed By similarity

Chain

2 – 81

Photosystem I iron-sulfur center HAMAP MF_01303

PRO_0000061970

Regions

Domain

2 – 31

4Fe-4S ferredoxin-type 1

Domain

39 – 68

4Fe-4S ferredoxin-type 2

Sites

Metal binding

Iron-sulfur 1 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 1 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 1 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 2 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 2 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 2 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 2 (4Fe-4S) By similarity

Metal binding

Iron-sulfur 1 (4Fe-4S) By similarity

Sequences

Sequence

Length

Mass (Da)

Tools

P62090 [UniParc].

Last modified January 23, 2007. Version 2.
Checksum: 68071DB57FC603BF
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FASTA

9,038

        10         20         30         40         50         60 
MSHSVKIYDT CIGCTQCVRA CPTDVLEMIP WDGCKAKQIA SAPRTEDCVG CKRCESACPT 

        70         80 
DFLSVRVYLW HETTRSMGLA Y

« Hide

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Complete structure of the chloroplast genome of Arabidopsis thaliana." Sato S., Nakamura Y., Kaneko T., Asamizu E., Tabata S. DNA Res. 6:283-290(1999) [PubMed: 10574454] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: cv. Columbia.
[2]	"Primary transcripts of ndhD of Liliaceae and Aloaceae require editing of the start and 20th codons." Lopez-Serrano M., del Campo E.M., Sabater B., Martin M. J. Exp. Bot. 52:179-180(2001) [PubMed: 11181728] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 68-81. Tissue: Leaf.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AP000423 Genomic DNA. Translation: BAA84438.1. AJ278354 Genomic DNA. Translation: CAB96190.1.
IPI	IPI00541194.
RefSeq	NP_051110.1. NC_000932.1.
3D structure databases
ProteinModelPortal	P62090.
SMR	P62090. Positions 1-81.
ModBase	Search...
Protein-protein interaction databases
STRING	P62090.
Protein family/group databases
TCDB	5.B.4.1.1. plant photosystem I supercomplex (PSI) family.
Proteomic databases
PRIDE	P62090.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblPlants	ATCG01060.1; ATCG01060.1; ATCG01060.
GeneID	844750.
GenomeReviews	Gene locus ATCG01060 in contig AP000423_GR.
KEGG	ath:ArthCp075.
NMPDR	fig\|3702.1.peg.74.
Organism-specific databases
TAIR	AtCg01060.
Phylogenomic databases
eggNOG	COG1145.
GeneTree	EPGT00050000018139.
HOGENOM	HBG284509.
PhylomeDB	P62090.
ProtClustDB	CHL00065.
Enzyme and pathway databases
BioCyc	MetaCyc:MONOMER-1097.
Gene expression databases
Genevestigator	P62090.
GermOnline	ATCG01060. Arabidopsis thaliana.
Family and domain databases
HAMAP	MF_01303. PSI_PsaC. [Tree]
InterPro	IPR001450. 4Fe4S-bd_dom. IPR017896. 4Fe4S_Fe-S-bd. IPR017900. 4Fe4S_Fe_S_CS. IPR017491. PSI_PsaC. [Graphical view]
KO	K02691.
Pfam	PF12838. Fer4_7. 1 hit. [Graphical view]
TIGRFAMs	TIGR03048. PS_I_psaC. 1 hit.
PROSITE	PS00198. 4FE4S_FER_1. 2 hits. PS51379. 4FE4S_FER_2. 2 hits. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PSAC_ARATH

Accession

Primary (citable) accession number: P62090
Secondary accession number(s): P07136

Q9T2J4

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 1, 1988
Last sequence update:	January 23, 2007
Last modified:	January 25, 2012
This is version 63 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program

Relevant documents

Arabidopsis thaliana

Arabidopsis thaliana: entries and gene names

SIMILARITY comments

Index of protein domains and families

Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·Documents

Preferred order of sections

Names and origin

Protein attributes

General annotation (Comments)

Ontologies

Sequence annotation (Features)

Molecule processing

Regions

Sites

Sequences

References

Cross-references

Sequence databases

3D structure databases

Protein-protein interaction databases

Protein family/group databases

Proteomic databases

Protocols and materials databases

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Enzyme and pathway databases

Gene expression databases

Family and domain databases

Entry information

Relevant documents