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PSI-P photosystem I P subunit [ Arabidopsis thaliana (thale cress) ]

Gene ID: 819295, updated on 18-Sep-2024

Summary

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Official Symbol
PSI-P
Official Full Name
photosystem I P subunit
Primary source
TAIR:AT2G46820
Locus tag
AT2G46820
See related
Araport:AT2G46820
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Arabidopsis thaliana (ecotype: Columbia)
Lineage
Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as
CURT1B; CURVATURE THYLAKOID 1B; F19D11.10; photosystem I P subunit; PLASTID TRANSCRIPTIONALLY ACTIVE 8; PSAP; PTAC8; THYLAKOID MEMBRANE PHOSPHOPROTEIN OF 14 KDA; TMP14
Summary
Encodes the P subunit of Photosystem I. About 25% of the TMP14 pool appeared to be phosphorylated, and this ratio is not affected by light. Contains seven phosphorylation sites on threonine residue and chloroplast targeting signal. Located in the proximity of PSI-L, -H and -O subunits.
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Genomic context

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See PSI-P in Genome Data Viewer
Location:
chromosome: 2
Exon count:
6
Sequence:
Chromosome: 2; NC_003071.7 (19243348..19245141)

Chromosome 2 - NC_003071.7Genomic Context describing neighboring genes Neighboring gene zinc transporter Neighboring gene basic helix-loop-helix (bHLH) DNA-binding superfamily protein Neighboring gene circadian clock associated 1 Neighboring gene hypothetical protein (DOMAIN OF UNKNOWN FUNCTION 724 4)

Genomic regions, transcripts, and products

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Genomic Sequence:
NC_003071.7

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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Related articles in PubMed

  1. The Role of Phosphorylation Dynamics of CURVATURE THYLAKOID 1B in Plant Thylakoid Membranes. Trotta A, et al. Plant Physiol, 2019 Dec. PMID 31615849, Free PMC Article
  2. A previously found thylakoid membrane protein of 14kDa (TMP14) is a novel subunit of plant photosystem I and is designated PSI-P. Khrouchtchova A, et al. FEBS Lett, 2005 Aug 29. PMID 16109415
  3. Identification of three previously unknown in vivo protein phosphorylation sites in thylakoid membranes of Arabidopsis thaliana. Hansson M, et al. Mol Cell Proteomics, 2003 Aug. PMID 12883043
  4. Arabidopsis CURVATURE THYLAKOID1 proteins modify thylakoid architecture by inducing membrane curvature. Armbruster U, et al. Plant Cell, 2013 Jul. PMID 23839788, Free PMC Article
  5. Construction of a chloroplast protein interaction network and functional mining of photosynthetic proteins in Arabidopsis thaliana. Yu QB, et al. Cell Res, 2008 Oct. PMID 18813226

See all (15) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. The Role of Phosphorylation Dynamics of CURVATURE THYLAKOID 1B in Plant Thylakoid Membranes.
    Title: The Role of Phosphorylation Dynamics of CURVATURE THYLAKOID 1B in Plant Thylakoid Membranes.
  2. Data indicate that the four CURVATURE THYLAKOID1 (CURT1) proteins CURT1A (At4g01150), CURT1B (At2g46820), CURT1C (At1g52220), and CURT1D (At4g38100) oligomerize and are highly enriched at grana margins.
    Title: Arabidopsis CURVATURE THYLAKOID1 proteins modify thylakoid architecture by inducing membrane curvature.
  3. demonstrated the exclusive localization of TMP14 in plant photosystem I (PSI); provided evidence that TMP14, designated PSI-P, is a novel subunit of this PS [PSI-P].
    Title: A previously found thylakoid membrane protein of 14kDa (TMP14) is a novel subunit of plant photosystem I and is designated PSI-P.
Submit: New GeneRIF Correction

Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Homology

NM_001036474.4
NM_130248.5

Gene Ontology Provided by TAIR

Function Evidence Code Pubs
enables DNA binding ISS
Inferred from Sequence or Structural Similarity
more info
 PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
acts_upstream_of_or_within granum assembly IMP
Inferred from Mutant Phenotype
more info
 PubMed 
acts_upstream_of_or_within membrane bending IDA
Inferred from Direct Assay
more info
 PubMed 
acts_upstream_of_or_within photosynthetic electron transport in photosystem I IDA
Inferred from Direct Assay
more info
 PubMed 
Component Evidence Code Pubs
located_in chloroplast HDA PubMed 
located_in chloroplast ISM
Inferred from Sequence Model
more info
  
located_in chloroplast envelope HDA PubMed 
located_in chloroplast envelope ISS
Inferred from Sequence or Structural Similarity
more info
 PubMed 
located_in chloroplast nucleoid HDA PubMed 
part_of chloroplast photosystem I IDA
Inferred from Direct Assay
more info
 PubMed 
part_of chloroplast photosystem I IMP
Inferred from Mutant Phenotype
more info
 PubMed 
located_in chloroplast thylakoid HDA PubMed 
located_in chloroplast thylakoid membrane HDA PubMed 
located_in cytosol HDA PubMed 
located_in granal stacked thylakoid IDA
Inferred from Direct Assay
more info
 PubMed 
located_in thylakoid HDA PubMed 

General protein information

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Preferred Names
photosystem I P subunit
NP_001031551.1
  • photosystem I P subunit (PSI-P); FUNCTIONS IN: DNA binding; INVOLVED IN: photosynthetic electron transport in photosystem I; LOCATED IN: in 6 components; EXPRESSED IN: 22 plant structures; EXPRESSED DURING: 14 growth stages; BEST Arabidopsis thaliana protein match is: unknown protein (TAIR:AT1G52220.1); Has 35333 Blast hits to 34131 proteins in 2444 species: Archae - 798; Bacteria - 22429; Metazoa - 974; Fungi - 991; Plants - 531; Viruses - 0; Other Eukaryotes - 9610 (source: NCBI BLink).
NP_566086.1
  • photosystem I P subunit (PSI-P); FUNCTIONS IN: DNA binding; INVOLVED IN: photosynthetic electron transport in photosystem I; LOCATED IN: in 7 components; EXPRESSED IN: 23 plant structures; EXPRESSED DURING: 14 growth stages; BEST Arabidopsis thaliana protein match is: unknown protein (TAIR:AT1G52220.1); Has 450 Blast hits to 450 proteins in 73 species: Archae - 0; Bacteria - 149; Metazoa - 0; Fungi - 0; Plants - 208; Viruses - 0; Other Eukaryotes - 93 (source: NCBI BLink).

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_003071.7 Reference assembly

    Range
    19243348..19245141
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_130248.5 → NP_566086.1  photosystem I P subunit [Arabidopsis thaliana]

    See identical proteins and their annotated locations for NP_566086.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    O81038, Q8LCA1
    UniProtKB/TrEMBL
    A0A178VZ38, A0A5S9X7L0
    Conserved Domains (1) summary
    PLN02777
    Location:11 → 174
    PLN02777; photosystem I P subunit (PSI-P)

  2. NM_001036474.4 → NP_001031551.1  photosystem I P subunit [Arabidopsis thaliana]

    See identical proteins and their annotated locations for NP_001031551.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    O81038, Q8LCA1
    UniProtKB/TrEMBL
    A0A178VZ38, A0A5S9X7L0
    Conserved Domains (1) summary
    PLN02777
    Location:11 → 174
    PLN02777; photosystem I P subunit (PSI-P)
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q8LCA1.2

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