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PET100 PET100 cytochrome c oxidase chaperone [ Homo sapiens (human) ]

Gene ID: 100131801, updated on 25-Nov-2025
Official Symbol
PET100provided by HGNC
Official Full Name
PET100 cytochrome c oxidase chaperoneprovided by HGNC
Primary source
HGNC:HGNC:40038
See related
Ensembl:ENSG00000229833 MIM:614770; AllianceGenome:HGNC:40038
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
MC4DN12; C19orf79
Summary
Mitochondrial complex IV, or cytochrome c oxidase, is a large transmembrane protein complex that is part of the respiratory electron transport chain of mitochondria. The small protein encoded by this gene plays a role in the biogenesis of mitochondrial complex IV. This protein localizes to the inner mitochondrial membrane and is exposed to the intermembrane space. Mutations in this gene are associated with mitochondrial complex IV deficiency. This gene has a pseudogene on chromosome 3. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]
Expression
Ubiquitous expression in kidney (RPKM 40.1), colon (RPKM 37.0) and 25 other tissues See more
Orthologs
Try the new Gene page
Try the new Transcripts and proteins table
See PET100 in Genome Data Viewer
Location:
19p13.2
Exon count:
5
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 19 NC_000019.10 (7629793..7631956)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 19 NC_060943.1 (7630676..7632839)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (7694679..7696842)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene calmodulin regulated spectrin associated protein family member 3 Neighboring gene microRNA 6792 Neighboring gene XPA binding protein 2 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13888 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13889 Neighboring gene syntaxin binding protein 2 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:7701542-7702069 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:7702070-7702598 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:7702599-7703125 Neighboring gene Purkinje cell protein 2 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9989 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13890 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13891 Neighboring gene RPS27A pseudogene 19 Neighboring gene resistin

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Clone Names

  • FLJ42727

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables unfolded protein binding IBA
Inferred from Biological aspect of Ancestor
more info
 
Process Evidence Code Pubs
involved_in mitochondrial respiratory chain complex IV assembly IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in mitochondrial respiratory chain complex IV assembly IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in membrane IEA
Inferred from Electronic Annotation
more info
 
is_active_in mitochondrial inner membrane IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in mitochondrial inner membrane IEA
Inferred from Electronic Annotation
more info
 
located_in mitochondrion HTP PubMed 
located_in mitochondrion IEA
Inferred from Electronic Annotation
more info
 
Preferred Names
protein PET100 homolog, mitochondrial
Names
PET100 homolog

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_034117.1 RefSeqGene

    Range
    5009..7172
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001171155.2NP_001164626.1  protein PET100 homolog, mitochondrial

    See identical proteins and their annotated locations for NP_001164626.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the shorter transcript and encodes the functional protein.
    Source sequence(s)
    AC008763, BU740873, CD641681
    Consensus CDS
    CCDS54208.1
    UniProtKB/Swiss-Prot
    P0DJ07
    Related
    ENSP00000470539.1, ENST00000594797.6
    Conserved Domains (1) summary
    pfam09803
    Location:259
    Pet100

RNA

  1. NR_033242.2 RNA Sequence

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) contains an alternate internal exon, compared to variant 1. This variant is represented as non-coding because the use of the 5'-most supported translational start codon, as used in variant 1, renders the transcript a candidate for nonsense-mediated mRNA decay (NMD).
    Source sequence(s)
    AC008763, BU740873, CB119056, CD641681

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p14 Primary Assembly

    Range
    7629793..7631956
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060943.1 Alternate T2T-CHM13v2.0

    Range
    7630676..7632839
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)