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PTAC5 plastid transcriptionally active 5 [ Arabidopsis thaliana (thale cress) ]

Gene ID: 827001, updated on 11-Jun-2025
Official Symbol
PTAC5
Official Full Name
plastid transcriptionally active 5
Primary source
TAIR:AT4G13670
Locus tag
AT4G13670
See related
Araport:AT4G13670
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
F18A5.60; F18A5_60; plastid transcriptionally active 5
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Try the new Transcripts and proteins table
See PTAC5 in Genome Data Viewer
Location:
chromosome: 4
Exon count:
6
Sequence:
Chromosome: 4; NC_003075.7 (7948579..7951022)

Chromosome 4 - NC_003075.7Genomic Context describing neighboring genes Neighboring gene miscRNA Neighboring gene pinoresinol reductase 2 Neighboring gene hypothetical protein (DUF295) Neighboring gene RNA-binding protein

Genomic Sequence:
NC_003075.7

Go to nucleotide: Graphics FASTA GenBank

Related articles in PubMed

  1. Chloroplast small heat shock protein HSP21 interacts with plastid nucleoid protein pTAC5 and is essential for chloroplast development in Arabidopsis under heat stress. Zhong L, et al. Plant Cell, 2013 Aug. PMID 23922206, Free PMC Article
  2. The reduced plastid-encoded polymerase-dependent plastid gene expression leads to the delayed greening of the Arabidopsis fln2 mutant. Huang C, et al. PLoS One, 2013. PMID 24019900, Free PMC Article
  3. pTAC2, -6, and -12 are components of the transcriptionally active plastid chromosome that are required for plastid gene expression. Pfalz J, et al. Plant Cell, 2006 Jan. PMID 16326926, Free PMC Article
  4. New functions of the thylakoid membrane proteome of Arabidopsis thaliana revealed by a simple, fast, and versatile fractionation strategy. Peltier JB, et al. J Biol Chem, 2004 Nov 19. PMID 15322131
  5. Proteomic study of the Arabidopsis thaliana chloroplastic envelope membrane utilizing alternatives to traditional two-dimensional electrophoresis. Froehlich JE, et al. J Proteome Res, 2003 Jul-Aug. PMID 12938931

See all (9) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. HSP21 and pTAC5 are required for chloroplast development under heat stress by maintaining plastid-encoded RNA polymerase function.
    Title: Chloroplast small heat shock protein HSP21 interacts with plastid nucleoid protein pTAC5 and is essential for chloroplast development in Arabidopsis under heat stress.
Submit: New GeneRIF Correction
Products Interactant Other Gene Complex Source Pubs Description
NM_001340873.1
NM_001340874.1
NM_117441.4

Gene Ontology Provided by TAIR

Function Evidence Code Pubs
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
enables protein disulfide isomerase activity IDA
Inferred from Direct Assay
more info
 PubMed 
enables protein disulfide isomerase activity IEA
Inferred from Electronic Annotation
more info
  
Process Evidence Code Pubs
involved_in chloroplast organization IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in plastid transcription IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in regulation of DNA-templated transcription IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in response to heat IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in response to light stimulus 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 nucleoid HDA PubMed 
located_in chloroplast nucleoid IDA
Inferred from Direct Assay
more info
 PubMed 
located_in chloroplast thylakoid HDA PubMed 
located_in chloroplast thylakoid membrane HDA PubMed 
located_in cytosol HDA PubMed 
part_of plastid-encoded plastid RNA polymerase complex IDA
Inferred from Direct Assay
more info
 PubMed 
Preferred Names
plastid transcriptionally active 5
NP_193103.2
  • plastid transcriptionally active 5 (PTAC5); FUNCTIONS IN: unfolded protein binding, heat shock protein binding; INVOLVED IN: protein folding, metabolic process; LOCATED IN: plastid chromosome, chloroplast thylakoid membrane, chloroplast, nucleoid, chloroplast envelope; EXPRESSED IN: 21 plant structures; EXPRESSED DURING: 13 growth stages; CONTAINS InterPro DOMAIN/s: Peptidoglycan binding-like (InterPro:IPR002477), Heat shock protein DnaJ, cysteine-rich domain (InterPro:IPR001305); Has 835 Blast hits to 827 proteins in 285 species: Archae - 9; Bacteria - 385; Metazoa - 155; Fungi - 28; Plants - 81; Viruses - 2; Other Eukaryotes - 175 (source: NCBI BLink).

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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_003075.7 Reference assembly

    Range
    7948579..7951022
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001340872.1 → NP_001328390.1  plastid transcriptionally active 5 [Arabidopsis thaliana]

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    A1A6M1

  2. NM_117441.4 → NP_193103.2  plastid transcriptionally active 5 [Arabidopsis thaliana]

    See identical proteins and their annotated locations for NP_193103.2

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    A0A1P8B4I4, A1A6M1, Q9SVP5
    UniProtKB/TrEMBL
    A0A178V1Z9
    Conserved Domains (3) summary
    pfam01471
    Location:183 → 242
    PG_binding_1; Putative peptidoglycan binding domain
    pfam11932
    Location:55 → 140
    DUF3450; Protein of unknown function (DUF3450)
    cl21539
    Location:319 → 383
    DnaJ_zf; Zinc finger domain of DnaJ and HSP40

  3. NM_001340873.1 → NP_001328391.1  plastid transcriptionally active 5 [Arabidopsis thaliana]

    Status: REVIEWED

    UniProtKB/TrEMBL
    A0A178V1Z9, A0A1P8B4I3

  4. NM_001340874.1 → NP_001328389.1  plastid transcriptionally active 5 [Arabidopsis thaliana]

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    A1A6M1
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
A1A6M1.1

Gene LinkOut

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