NKX6-2

Protein-coding gene in the species Homo sapiens

NKX6-2
Identifiers
AliasesNKX6-2, GTX, NKX6.2, NKX6B, NK6 homeobox 2, SPAX8
External IDsOMIM: 605955; MGI: 1352738; HomoloGene: 18580; GeneCards: NKX6-2; OMA:NKX6-2 - orthologs
Gene location (Human)
Chromosome 10 (human)
Chr.Chromosome 10 (human)[1]
Chromosome 10 (human)
Genomic location for NKX6-2
Genomic location for NKX6-2
Band10q26.3Start132,783,179 bp[1]
End132,786,147 bp[1]
Gene location (Mouse)
Chromosome 7 (mouse)
Chr.Chromosome 7 (mouse)[2]
Chromosome 7 (mouse)
Genomic location for NKX6-2
Genomic location for NKX6-2
Band7 F4|7 84.57 cMStart139,159,292 bp[2]
End139,162,713 bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • C1 segment

  • substantia nigra

  • putamen

  • hippocampus proper

  • primary visual cortex

  • apex of heart

  • temporal lobe

  • amygdala

  • hypothalamus

  • caudate nucleus
Top expressed in
  • lumbar subsegment of spinal cord

  • ascending aorta

  • aortic valve

  • epithelium of gastric gland

  • substantia nigra

  • spermatid

  • spermatocyte

  • superior frontal gyrus

  • primary visual cortex

  • primordial pancreas
More reference expression data
BioGPS
n/a
Gene ontology
Molecular function
  • DNA-binding transcription factor activity
  • RNA polymerase II cis-regulatory region sequence-specific DNA binding
  • sequence-specific DNA binding
  • DNA-binding transcription repressor activity, RNA polymerase II-specific
  • DNA binding
  • DNA-binding transcription factor activity, RNA polymerase II-specific
Cellular component
  • nucleus
Biological process
  • multicellular organism development
  • positive regulation of glial cell differentiation
  • cell differentiation
  • oligodendrocyte differentiation
  • negative regulation of glial cell differentiation
  • regulation of transcription, DNA-templated
  • negative regulation of transcription by RNA polymerase II
  • negative regulation of cell fate commitment
  • neuromuscular process controlling balance
  • positive regulation of cell fate commitment
  • central nervous system myelination
  • endocrine pancreas development
  • regulation of myelination
  • negative regulation of transcription, DNA-templated
  • positive regulation of transcription by RNA polymerase II
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

84504

14912

Ensembl

ENSG00000148826

ENSMUSG00000041309

UniProt

Q9C056

D3Z4R4

RefSeq (mRNA)

NM_177400

NM_183248

RefSeq (protein)

NP_796374

NP_899071

Location (UCSC)Chr 10: 132.78 – 132.79 MbChr 7: 139.16 – 139.16 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Homeobox protein Nkx-6.2 is a protein that in humans is encoded by the NKX6-2 gene.[5][6]

Nk6 homeobox 2 gene (Nkx6.2) is found on chromosome 10 in humans and on chromosome 7 in murine species.[7][8] Expression of the Nkx6.2 gene results in the Nkx6.2 transcription factor.[9]

Tissue distribution

Its expression can be seen in the fetal brain, ventral portion of the neural tube, and the developing spinal cord during embryogenesis as well as in the adult brain.[9][10] Expression was also found to be in germ cells of testes.[11]

Function

Nkx6.2 is involved in the patterning of the central nervous system during early embryo development.[12] As this gene continues to be researched, newfound information suggests that it aids in human oligodendrocyte maturation.[10][13] It has also been found to be important in motor function stemming from spinal neuronal circuits.[7]

Clinical significance

Disorders with this gene can result in Spastic Ataxia which is a disease characterized by possible neurological issues, impaired learning ability, and a hypomyelinated central nervous system.[8][14] Another study has shown that methylation of Nkx6.2 can be correlated with renal cancer metastasis.[15]

Research

A Nkx6.2 knock-out mouse model showed abnormal motor ability thus corroborating that Nkx6.2 plays a role in central nervous system development.[7]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000148826 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000041309 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Lee SH, Davison JA, Vidal SM, Belouchi A (February 2001). "Cloning, expression and chromosomal location of NKX6B TO 10Q26, a region frequently deleted in brain tumors". Mammalian Genome. 12 (2): 157–162. doi:10.1007/s003350010247. PMID 11210186. S2CID 22368753.
  6. ^ "Entrez Gene: NK6 homeobox 2".
  7. ^ a b c Toch M, Harris A, Schakman O, Kondratskaya E, Boulland JL, Dauguet N, et al. (January 2020). "Onecut-dependent Nkx6.2 transcription factor expression is required for proper formation and activity of spinal locomotor circuits". Scientific Reports. 10 (1): 996. Bibcode:2020NatSR..10..996T. doi:10.1038/s41598-020-57945-4. PMC 6976625. PMID 31969659.
  8. ^ a b Hosseini Bereshneh A, Hosseipour S, Rasoulinezhad MS, Pak N, Garshasbi M, Tavasoli AR (May 2020). "Expanding the clinical and neuroimaging features of NKX6-2-related hereditary spastic ataxia type 8". European Journal of Medical Genetics. 63 (5): 103868. doi:10.1016/j.ejmg.2020.103868. PMID 32004679.
  9. ^ a b Vallstedt A, Muhr J, Pattyn A, Pierani A, Mendelsohn M, Sander M, et al. (September 2001). "Different levels of repressor activity assign redundant and specific roles to Nkx6 genes in motor neuron and interneuron specification". Neuron. 31 (5): 743–755. doi:10.1016/s0896-6273(01)00412-3. PMID 11567614.
  10. ^ a b Chelban V, Patel N, Vandrovcova J, Zanetti MN, Lynch DS, Ryten M, et al. (June 2017). "Mutations in NKX6-2 Cause Progressive Spastic Ataxia and Hypomyelination". American Journal of Human Genetics. 100 (6): 969–977. doi:10.1016/j.ajhg.2017.05.009. PMC 5473715. PMID 28575651.
  11. ^ Komuro I, Schalling M, Jahn L, Bodmer R, Jenkins NA, Copeland NG, et al. (April 1993). "Gtx: a novel murine homeobox-containing gene, expressed specifically in glial cells of the brain and germ cells of testis, has a transcriptional repressor activity in vitro for a serum-inducible promoter". The EMBO Journal. 12 (4): 1387–1401. doi:10.1002/j.1460-2075.1993.tb05783.x. PMC 413350. PMID 8096811.
  12. ^ Southwood C, He C, Garbern J, Kamholz J, Arroyo E, Gow A (December 2004). "CNS myelin paranodes require Nkx6-2 homeoprotein transcriptional activity for normal structure". The Journal of Neuroscience. 24 (50): 11215–11225. doi:10.1523/JNEUROSCI.3479-04.2004. PMC 6730372. PMID 15601927.
  13. ^ Cai J, Zhu Q, Zheng K, Li H, Qi Y, Cao Q, et al. (March 2010). "Co-localization of Nkx6.2 and Nkx2.2 homeodomain proteins in differentiated myelinating oligodendrocytes". Glia. 58 (4): 458–468. doi:10.1002/glia.20937. PMC 2807475. PMID 19780200.
  14. ^ Shurrab S, Cordeiro D, Mercimek-Andrews S (2023). "NKX6-2 Disease in Two Unrelated Patients with Early-Onset Spastic Quadriplegia and Diffuse Hypomyelinating Leukodystrophy". Brain Disorders. 9: 100069. doi:10.1016/j.dscb.2023.100069.
  15. ^ Serth J, Peters I, Katzendorn O, Dang TN, Moog J, Balli Z, et al. (September 2022). "Identification of a Novel Renal Metastasis Associated CpG-Based DNA Methylation Signature (RMAMS)". International Journal of Molecular Sciences. 23 (19): 11190. doi:10.3390/ijms231911190. PMC 9569431. PMID 36232491.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

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(1) Basic domains
(1.1) Basic leucine zipper (bZIP)
(1.2) Basic helix-loop-helix (bHLH)
Group A
Group B
Group C
bHLH-PAS
Group D
Group E
Group F
bHLH-COE
(1.3) bHLH-ZIP
(1.4) NF-1
(1.5) RF-X
(1.6) Basic helix-span-helix (bHSH)
(2) Zinc finger DNA-binding domains
(2.1) Nuclear receptor (Cys4)
subfamily 1
subfamily 2
subfamily 3
subfamily 4
subfamily 5
subfamily 6
subfamily 0
(2.2) Other Cys4
(2.3) Cys2His2
(2.4) Cys6
(2.5) Alternating composition
(2.6) WRKY
(3) Helix-turn-helix domains
(3.1) Homeodomain
Antennapedia
ANTP class
protoHOX
Hox-like
metaHOX
NK-like
other
(3.2) Paired box
(3.3) Fork head / winged helix
(3.4) Heat shock factors
(3.5) Tryptophan clusters
(3.6) TEA domain
  • transcriptional enhancer factor
(4) β-Scaffold factors with minor groove contacts
(4.1) Rel homology region
(4.2) STAT
(4.3) p53-like
(4.4) MADS box
(4.6) TATA-binding proteins
(4.7) High-mobility group
(4.9) Grainyhead
(4.10) Cold-shock domain
(4.11) Runt
(0) Other transcription factors
(0.2) HMGI(Y)
(0.3) Pocket domain
(0.5) AP-2/EREBP-related factors
(0.6) Miscellaneous
see also transcription factor/coregulator deficiencies
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