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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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