Nkx3-2 NK3 homeobox 2 [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Nkx3-2provided by MGI
Official Full Name: NK3 homeobox 2provided by MGI
Primary source: MGI:MGI:108015
See related: Ensembl:ENSMUSG00000049691 AllianceGenome:MGI:108015
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: Bapx1; NKX3.2; Nkx-3.2
Summary: Enables DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in negative regulation of chondrocyte differentiation and negative regulation of transcription by RNA polymerase II. Acts upstream of or within several processes, including intestinal epithelial cell development; middle ear morphogenesis; and skeletal system development. Predicted to be located in nucleoplasm. Predicted to be active in nucleus. Is expressed in several structures, including alimentary system; central nervous system; embryo mesenchyme; genitourinary system; and limb. Orthologous to human NKX3-2 (NK3 homeobox 2). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Biased expression in colon adult (RPKM 7.5), limb E14.5 (RPKM 5.4) and 6 other tissues See more
Orthologs: human all
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Genomic context

Location:: 5 B3; 5 22.58 cM

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	5	NC_000071.7 (41918826..41921563, complement)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	5	NC_000071.6 (41761483..41764220, complement)

Chromosome 5 - NC_000071.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

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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?

Suppression of Osteoarthritis progression by post-natal Induction of Nkx3.2.
Title: Suppression of Osteoarthritis progression by post-natal Induction of Nkx3.2.
these results suggest that Nkx3.2-mediated HIF regulation may allow cartilage-specific avascularity under hypoxic conditions during endochondral skeleton development.
Title: Nkx3.2 induces oxygen concentration-independent and lysosome-dependent degradation of HIF-1α to modulate hypoxic responses in chondrocytes.
that cartilage-specific and Cre-dependent Nkx3.2 overexpression in mice results in significant postnatal dwarfism in endochondral skeletons
Title: Cartilage-Specific and Cre-Dependent Nkx3.2 Overexpression In Vivo Causes Skeletal Dwarfism by Delaying Cartilage Hypertrophy.
Nkx3.2 promotes primary chondrogenesis by two mechanisms: Direct and Sox9-independent upregulation of Col2a1 transcription and upregulation of Sox9 mRNA expression under positive feedback system.
Title: Nkx3.2 promotes primary chondrogenic differentiation by upregulating Col2a1 transcription.
the balance of Pax3, Nkx3.2 and Sox9 may act as a molecular switch during the chondrogenic differentiation of muscle progenitor cells, which may be important for fracture healing.
Title: Interplay of Nkx3.2, Sox9 and Pax3 regulates chondrogenic differentiation of muscle progenitor cells.
These results demonstrated that Nkx3.2-dependent suppression of Runx2 was a crucial factor in hypoxia-dependent maintenance of chondrocyte identity.
Title: Nkx3.2-induced suppression of Runx2 is a crucial mediator of hypoxia-dependent maintenance of chondrocyte phenotypes.
Data show that IkappaB kinase beta (IKKbeta) can be activated in the nucleus by Nkx3.2 in the absence of exogenous IKK-activating signals, allowing constitutive nuclear degradation of IkappaB-alpha.
Title: Exogenous signal-independent nuclear IkappaB kinase activation triggered by Nkx3.2 enables constitutive nuclear degradation of IkappaB-alpha in chondrocytes.
Results reveal that the molecular pathway modulated by Bapx1 links two major regulators in chondrogenesis, Sox9 and Runx2, to coordinate skeletal formation.
Title: Sox9 directly promotes Bapx1 gene expression to repress Runx2 in chondrocytes.
A regulatory mutation, (-519G-->A) within the neu1 promoter generates a consensus binding site for Nkx3 family transcription repressors.
Title: A point mutation in the neu1 promoter recruits an ectopic repressor, Nkx3.2 and results in a mouse model of sialidase deficiency.
Nkx3.2 has a critical role in the induction of somitic chondrogenesis
Title: Characterization of Nkx3.2 DNA binding specificity and its requirement for somitic chondrogenesis.

Submit: New GeneRIF Correction See all GeneRIFs (18)

Variation

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Alleles

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

Endonuclease-mediated (2)
Targeted (10) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

Bapx1 (e-PCR), detects polymorphism
- UniSTS:166206

Nkx3-2 (e-PCR), detects polymorphism
- UniSTS:547275

Bapx1 (e-PCR), detects polymorphism
- UniSTS:207057

PMC22272P1 (e-PCR)
- UniSTS:272103

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables DNA-binding transcription factor activity, RNA polymerase II-specific	IBA Inferred from Biological aspect of Ancestor more info
enables DNA-binding transcription repressor activity, RNA polymerase II-specific	IDA Inferred from Direct Assay more info	PubMed
enables RNA polymerase II cis-regulatory region sequence-specific DNA binding	IBA Inferred from Biological aspect of Ancestor more info
enables RNA polymerase II cis-regulatory region sequence-specific DNA binding	IDA Inferred from Direct Assay more info	PubMed
enables sequence-specific double-stranded DNA binding	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
acts_upstream_of_or_within animal organ development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within animal organ formation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in cell differentiation	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within determination of left/right symmetry	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within digestive system development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within embryonic skeletal system development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within intestinal epithelial cell development	IGI Inferred from Genetic Interaction more info	PubMed
acts_upstream_of_or_within middle ear morphogenesis	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within negative regulation of apoptotic process	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in negative regulation of chondrocyte differentiation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in negative regulation of transcription by RNA polymerase II	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within pancreas development	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of transcription by RNA polymerase II	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within skeletal system development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within skeletal system morphogenesis	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within spleen development	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in nucleoplasm	TAS Traceable Author Statement more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: homeobox protein Nkx-3.2

Names: bagpipe homeobox gene 1 homolog; bagpipe homeobox protein homolog 1; homeobox protein NK-3 homolog B; homeodomain protein Nkx-3.2

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.