NKX2-2

In today's article, we are going to delve into NKX2-2, a relevant topic that has captured the attention of many people in recent times. Throughout this text, we will analyze different aspects of NKX2-2, from its origins to its impact on today's society. We will immerse ourselves in its history, explore its implications in different areas and reflect on its importance in the current context. NKX2-2 is an exciting topic that deserves to be addressed from different perspectives, which is why in this article we aim to offer a broad and enriching vision of this matter. Join us on this fascinating exploration!

Protein-coding gene in the species Homo sapiens

NKX2-2
Identifiers
Aliases	NKX2-2, NKX2.2, NKX2B, NK2 homeobox 2
External IDs	OMIM: 604612; MGI: 97347; HomoloGene: 1879; GeneCards: NKX2-2; OMA:NKX2-2 - orthologs
Gene location (Human) Chr. Chromosome 20 (human)[1] Band 20p11.22 Start 21,511,017 bp[1] End 21,514,064 bp[1]
Gene location (Mouse) Chr. Chromosome 2 (mouse)[2] Band 2 G2|2 72.63 cM Start 147,177,546 bp[2] End 147,194,243 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in inferior ganglion of vagus nerve subthalamic nucleus medulla oblongata superior vestibular nucleus ventral tegmental area inferior olivary nucleus spinal cord C1 segment external globus pallidus pars reticulata Top expressed in islet of Langerhans lumbar subsegment of spinal cord optic nerve central gray substance of midbrain ventral nucleus of lateral geniculate body embryo anterior horn of spinal cord nucleus of stria terminalis hypothalamus cerebellar cortex More reference expression data BioGPS More reference expression data
Gene ontology Molecular function sequence-specific DNA binding DNA binding DNA-binding transcription factor activity transcription factor binding chromatin binding transcription coactivator activity cis-regulatory region sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific RNA polymerase II cis-regulatory region sequence-specific DNA binding Cellular component intracellular anatomical structure nucleoplasm nucleus Biological process positive regulation of oligodendrocyte differentiation cell differentiation regulation of transcription, DNA-templated negative regulation of neuron differentiation pancreatic PP cell fate commitment response to organic cyclic compound cell development spinal cord oligodendrocyte cell fate specification response to progesterone neuron fate specification response to glucose transcription, DNA-templated nervous system development multicellular organism development brain development astrocyte differentiation positive regulation of gene expression positive regulation of neuron differentiation positive regulation of cell differentiation regulation of cell differentiation smoothened signaling pathway oligodendrocyte development spinal cord motor neuron differentiation digestive tract development pancreatic A cell fate commitment type B pancreatic cell fate commitment ventral spinal cord interneuron fate determination type B pancreatic cell development spinal cord oligodendrocyte cell differentiation optic nerve development positive regulation of transcription by RNA polymerase II positive regulation of DNA-binding transcription factor activity endocrine pancreas development Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 4821 18088 Ensembl ENSG00000125820 ENSMUSG00000027434 UniProt O95096 P42586 RefSeq (mRNA) NM_002509 NM_001077632 NM_010919 RefSeq (protein) NP_002500 NP_001071100 NP_035049 Location (UCSC) Chr 20: 21.51 – 21.51 Mb Chr 2: 147.18 – 147.19 Mb PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Homeobox protein Nkx-2.2 is a protein that in humans is encoded by the NKX2-2 gene.^[5][6][7]

Homeobox protein Nkx-2.2 contains a homeobox domain and may be involved in the morphogenesis of the central nervous system. This gene is found on chromosome 20 near NKX2-4, and these two genes appear to be duplicated on chromosome 14 in the form of TITF1 and NKX2-8. The encoded protein is likely to be a nuclear transcription factor.^[7]

The expression of Nkx2-2 is regulated by an antisense RNA called Nkx2-2as.^[8]

In the developing spinal cord, Nkx-2.2 regulates IRX3 thereby contributing to the proper differentiation of the ventral horn neurons.^[9]

References

1. ^ ^{a b c} GRCh38: Ensembl release 89: ENSG00000125820 – Ensembl, May 2017
2. ^ ^{a b c} GRCm38: Ensembl release 89: ENSMUSG00000027434 – 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. ^ Furuta H, Horikawa Y, Iwasaki N, Hara M, Sussel L, Le Beau MM, Davis EM, Ogata M, Iwamoto Y, German MS, Bell GI (Aug 1998). "Beta-cell transcription factors and diabetes: mutations in the coding region of the BETA2/NeuroD1 (NEUROD1) and Nkx2.2 (NKX2B) genes are not associated with maturity-onset diabetes of the young in Japanese". Diabetes. 47 (8): 1356–1358. doi:10.2337/diabetes.47.8.1356. PMID 9703340.
6. ^ Price M, Lazzaro D, Pohl T, Mattei MG, Rüther U, Olivo JC, Duboule D, Di Lauro R (Feb 1992). "Regional expression of the homeobox gene Nkx-2.2 in the developing mammalian forebrain". Neuron. 8 (2): 241–255. doi:10.1016/0896-6273(92)90291-K. PMID 1346742. S2CID 22766848.
7. ^ ^{a b} "Entrez Gene: NKX2-2 NK2 transcription factor related, locus 2 (Drosophila)".
8. ^ Tochitani S, Hayashizaki Y (Aug 2008). "Nkx2.2 antisense RNA overexpression enhanced oligodendrocytic differentiation". Biochemical and Biophysical Research Communications. 372 (4): 691–696. Bibcode:2008BBRC..372..691T. doi:10.1016/j.bbrc.2008.05.127. PMID 18538132.
9. ^ Lovrics A, Gao Y, Juhász B, Bock I, Byrne HM, Dinnyés A, Kovács KA (November 2014). "Boolean modelling reveals new regulatory connections between transcription factors orchestrating the development of the ventral spinal cord". PLOS ONE. 9 (11) e111430. Bibcode:2014PLoSO...9k1430L. doi:10.1371/journal.pone.0111430. PMC 4232242. PMID 25398016.

Further reading

• Hessabi B, Schmidt I, Walther R (Apr 2000). "The homeodomain of Nkx2.2 carries two cooperatively acting nuclear localization signals". Biochemical and Biophysical Research Communications. 270 (3): 695–700. Bibcode:2000BBRC..270..695H. doi:10.1006/bbrc.2000.2491. PMID 10772886.
• Wang CC, Brodnicki T, Copeland NG, Jenkins NA, Harvey RP (Jun 2000). "Conserved linkage of NK-2 homeobox gene pairs Nkx2-2/2-4 and Nkx2-1/2-9 in mammals". Mammalian Genome. 11 (6): 466–468. doi:10.1007/s003350010089. PMID 10818213. S2CID 29283599.
• Sun T, Dong H, Wu L, Kane M, Rowitch DH, Stiles CD (Oct 2003). "Cross-repressive interaction of the Olig2 and Nkx2.2 transcription factors in developing neural tube associated with formation of a specific physical complex". The Journal of Neuroscience. 23 (29): 9547–9556. doi:10.1523/JNEUROSCI.23-29-09547.2003. PMC 6740479. PMID 14573534.
• Smith R, Owen LA, Trem DJ, Wong JS, Whangbo JS, Golub TR, Lessnick SL (May 2006). "Expression profiling of EWS/FLI identifies NKX2.2 as a critical target gene in Ewing's sarcoma". Cancer Cell. 9 (5): 405–416. doi:10.1016/j.ccr.2006.04.004. PMID 16697960.
• Pauls S, Zecchin E, Tiso N, Bortolussi M, Argenton F (Apr 2007). "Function and regulation of zebrafish nkx2.2a during development of pancreatic islet and ducts". Developmental Biology. 304 (2): 875–890. doi:10.1016/j.ydbio.2007.01.024. PMID 17335795.

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

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