Cpt2 carnitine palmitoyltransferase 2 [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Cpt2provided by MGI
Official Full Name: carnitine palmitoyltransferase 2provided by MGI
Primary source: MGI:MGI:109176
See related: Ensembl:ENSMUSG00000028607 AllianceGenome:MGI:109176
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: CPTII
Summary: Enables carnitine O-palmitoyltransferase activity. Involved in carnitine shuttle and positive regulation of cold-induced thermogenesis. Acts upstream of or within in utero embryonic development. Located in mitochondrion. Is active in mitochondrial matrix. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in brain disease; lipid metabolism disorder; and muscular disease. Orthologous to human CPT2 (carnitine palmitoyltransferase 2). [provided by Alliance of Genome Resources, Jul 2025]
Expression: Broad expression in adrenal adult (RPKM 110.0), duodenum adult (RPKM 94.1) and 22 other tissues See more
Orthologs: human all
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Genomic context

Location:: 4 C7; 4 50.18 cM

Exon count:: 5

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	4	NC_000070.7 (107761179..107780786, complement)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	4	NC_000070.6 (107903982..107923589, complement)

Chromosome 4 - NC_000070.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Downregulation of CPT2 promotes proliferation and inhibits apoptosis through p53 pathway in colorectal cancer.
Title: Downregulation of CPT2 promotes proliferation and inhibits apoptosis through p53 pathway in colorectal cancer.
Skeletal muscle undergoes fiber type metabolic switch without myosin heavy chain switch in response to defective fatty acid oxidation.
Title: Skeletal muscle undergoes fiber type metabolic switch without myosin heavy chain switch in response to defective fatty acid oxidation.
Inhibition of CPT2 exacerbates cardiac dysfunction and inflammation in experimental endotoxaemia.
Title: Inhibition of CPT2 exacerbates cardiac dysfunction and inflammation in experimental endotoxaemia.
Mitochondrial carnitine palmitoyltransferase 2 is involved in N(epsilon)-(carboxymethyl)-lysine-mediated diabetic nephropathy.
Title: Mitochondrial carnitine palmitoyltransferase 2 is involved in N(ε)-(carboxymethyl)-lysine-mediated diabetic nephropathy.
Cpt2 is obligate enzyme in long-chain fatty acid (FA) oxidation; cardiac hypertrophy is linked to impaired FA oxidation. Data (including data from studies using transgenic/knockout mice) suggest that deficiency of Cpt2 in cardiac muscle leads to cardiac hypertrophy/dysfunction with eventual lethality without cardiac fibrosis; mTORC1 is activated in Cpt2(-/-) heart, but inhibition of mTORC1 does not prevent hypertrophy.
Title: Loss of cardiac carnitine palmitoyltransferase 2 results in rapamycin-resistant, acetylation-independent hypertrophy.
Mice acclimatized to thermoneutrality revealed that Cpt2A-null interscapular brown adipose tissue failed to induce the expression of thermogenic genes such as Ucp1 and Pgc1a.
Title: Loss of Adipose Fatty Acid Oxidation Does Not Potentiate Obesity at Thermoneutrality.
Consistent with the known requirement for CPT2 in fatty acid oxidation, macrophages lacking CPT2 were unable to achieve b-oxidation of fatty acids yet still seemed to fully polarize toward an M2 state after stimulation with IL-4 in vitro and in vivo.
Title: Fatty acid oxidation in macrophage polarization.
Cpt2 transcripts decrease following fertilization to undetectable levels and are present again later at the morula stage
Title: Single-cell quantitative RT-PCR analysis of Cpt1b and Cpt2 gene expression in mouse antral oocytes and in preimplantation embryos.

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Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Endonuclease-mediated (2)
Targeted (3) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH99332 (e-PCR)
- UniSTS:84480

Cpt2 (e-PCR), detects polymorphism
- UniSTS:461891

Cpt2 (e-PCR), detects polymorphism
- UniSTS:461892

U01163 (e-PCR)
- UniSTS:179040

Cpt2 (e-PCR), detects polymorphism
- UniSTS:506816

AI323697 (e-PCR)
- UniSTS:165340

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables acyltransferase activity	IEA Inferred from Electronic Annotation more info
enables acyltransferase activity	ISO Inferred from Sequence Orthology more info
enables acyltransferase activity	ISS Inferred from Sequence or Structural Similarity more info
enables carnitine O-octanoyltransferase activity	IEA Inferred from Electronic Annotation more info
enables carnitine O-palmitoyltransferase activity	IBA Inferred from Biological aspect of Ancestor more info
enables carnitine O-palmitoyltransferase activity	IEA Inferred from Electronic Annotation more info
enables carnitine O-palmitoyltransferase activity	IMP Inferred from Mutant Phenotype more info	PubMed
enables carnitine O-palmitoyltransferase activity	ISO Inferred from Sequence Orthology more info
enables carnitine O-palmitoyltransferase activity	ISS Inferred from Sequence or Structural Similarity more info
enables transferase activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in carnitine metabolic process	IEA Inferred from Electronic Annotation more info
involved_in carnitine metabolic process	ISO Inferred from Sequence Orthology more info
involved_in carnitine metabolic process	ISS Inferred from Sequence or Structural Similarity more info
involved_in carnitine shuttle	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in fatty acid beta-oxidation	IBA Inferred from Biological aspect of Ancestor more info
involved_in fatty acid beta-oxidation	IEA Inferred from Electronic Annotation more info
involved_in fatty acid beta-oxidation	ISO Inferred from Sequence Orthology more info
involved_in fatty acid beta-oxidation	ISS Inferred from Sequence or Structural Similarity more info
involved_in fatty acid metabolic process	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within in utero embryonic development	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in lipid metabolic process	IEA Inferred from Electronic Annotation more info
involved_in long-chain fatty acid metabolic process	IEA Inferred from Electronic Annotation more info
involved_in long-chain fatty acid metabolic process	ISO Inferred from Sequence Orthology more info
involved_in long-chain fatty acid metabolic process	ISS Inferred from Sequence or Structural Similarity more info
involved_in positive regulation of cold-induced thermogenesis	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in membrane	IEA Inferred from Electronic Annotation more info
located_in mitochondrial inner membrane	IEA Inferred from Electronic Annotation more info
is_active_in mitochondrial matrix	IMP Inferred from Mutant Phenotype more info	PubMed
located_in mitochondrion	HDA more info	PubMed
is_active_in mitochondrion	IBA Inferred from Biological aspect of Ancestor more info
located_in mitochondrion	IEA Inferred from Electronic Annotation more info
located_in mitochondrion	ISO Inferred from Sequence Orthology more info
located_in nucleolus	IEA Inferred from Electronic Annotation more info
located_in nucleolus	ISO Inferred from Sequence Orthology more info
located_in nucleoplasm	IEA Inferred from Electronic Annotation more info
located_in nucleoplasm	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: carnitine O-palmitoyltransferase 2, mitochondrial

Names: carnitine palmitoyltransferase II

NP_034079.2

EC 2.3.1.21

NCBI Reference Sequences (RefSeq)

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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.

mRNA and Protein(s)

NM_009949.3 → NP_034079.2 carnitine O-palmitoyltransferase 2, mitochondrial precursor

See identical proteins and their annotated locations for NP_034079.2

Status: VALIDATED

Source sequence(s)

AL611936

Consensus CDS

CCDS18443.1

UniProtKB/Swiss-Prot

P52825, Q3TFS0

UniProtKB/TrEMBL

Q3UN55

Related

ENSMUSP00000030345.9, ENSMUST00000030345.15

Conserved Domains (1) summary

pfam00755
Location:49 → 648

Carn_acyltransf; Choline/Carnitine o-acyltransferase