KIAA0319

KIAA0319
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 2E7M​
Identifiers
Symbols	KIAA0319 ; DYLX2; DYX2; NMIG
External IDs	OMIM: 609269 MGI: 3036268 HomoloGene: 8878 GeneCards: KIAA0319 Gene
Gene ontology Molecular function • protein binding Cellular component • early endosome • plasma membrane • integral component of membrane • early endosome membrane Biological process • neuron migration • negative regulation of dendrite development Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	9856	210108
Ensembl	ENSG00000137261	ENSMUSG00000006711
UniProt	Q5VV43	Q5SZV5
RefSeq (mRNA)	NM_001168374	NM_001081051
RefSeq (protein)	NP_001161846	NP_001074520
Location (UCSC)	Chr 6: 24.54 – 24.65 Mb	Chr 13: 24.85 – 24.9 Mb
PubMed search

KIAA0319 is a protein which in humans is encoded by the KIAA0319 gene.^[1][2]

Clinical significance

Variants of the KIAA0319 gene have been associated with developmental dyslexia.^[3]

Reading disability, or dyslexia, is a major social, educational, and mental health problem. In spite of average intelligence and adequate educational opportunities, 5 to 10% of school children have substantial reading deficits. Twin and family studies have shown a substantial genetic component to this disorder, with heritable variation estimated at 50 to 70%.^[1]

An NIDCD-supported investigator recently has identified a mutation in a gene on chromosome 6, called the KIAA0319 gene, that appears to play a key role in Specific Language Impairment.^[4]

Function

Over-expression of C-terminally myc-tagged KIAA0319 protein in transiently transfected 293T cells, showing plasma membrane localization. Detection with monoclonal anti-myc 9E10.

The KIAA0319 protein is expressed on the cell membrane and may be involved in neuronal migration. Furthermore KIAA0319 follows a clathrin-mediated endocytic pathway^[5]

References

1. "Entrez Gene: KIAA0319 KIAA0319".
2. Nagase T, Ishikawa K, Nakajima D, Ohira M, Seki N, Miyajima N, Tanaka A, Kotani H, Nomura N, Ohara O (April 1997). "Prediction of the coding sequences of unidentified human genes. VII. The complete sequences of 100 new cDNA clones from the brain which can code for large proteins in vitro". DNA Res. 4 (2): 141–50. doi:10.1093/dnares/4.2.141. PMID 9205841.
3. Cope N, Harold D, Hill G, Moskvina V, Stevenson J, Holmans P, Owen MJ, O'Donovan MC, Williams J (April 2005). "Strong evidence that KIAA0319 on chromosome 6p is a susceptibility gene for developmental dyslexia". Am. J. Hum. Genet. 76 (4): 581–91. doi:10.1086/429131. PMC 1199296. PMID 15717286.
4. https://www.nidcd.nih.gov/health/voice/pages/specific-language-impairment.aspx
5. Levecque C, Velayos-Baeza A, Holloway ZG, Monaco AP (July 2009). "The dyslexia-associated protein KIAA0319 interacts with adaptor protein 2 and follows the classical clathrin-mediated endocytosis pathway". Am. J. Physiol., Cell Physiol. 297 (1): C160–8. doi:10.1152/ajpcell.00630.2008. PMC 2711651. PMID 19419997.

Further reading

• Ozçelik T, Porteus MH, Rubenstein JL, Francke U (1992). "DLX2 (TES1), a homeobox gene of the Distal-less family, assigned to conserved regions on human and mouse chromosomes 2.". Genomics 13 (4): 1157–61. doi:10.1016/0888-7543(92)90031-M. PMID 1354641.
• Cardon LR, Smith SD, Fulker DW, et al. (1994). "Quantitative trait locus for reading disability on chromosome 6.". Science 266 (5183): 276–9. doi:10.1126/science.7939663. PMID 7939663.
• Nagase T, Ishikawa K, Nakajima D, et al. (1997). "Prediction of the coding sequences of unidentified human genes. VII. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro.". DNA Res. 4 (2): 141–50. doi:10.1093/dnares/4.2.141. PMID 9205841.
• Gayán J, Smith SD, Cherny SS, et al. (1999). "Quantitative-trait locus for specific language and reading deficits on chromosome 6p.". Am. J. Hum. Genet. 64 (1): 157–64. doi:10.1086/302191. PMC 1377713. PMID 9915954.
• Nakayama M, Kikuno R, Ohara O (2003). "Protein-protein interactions between large proteins: two-hybrid screening using a functionally classified library composed of long cDNAs.". Genome Res. 12 (11): 1773–84. doi:10.1101/gr.406902. PMC 187542. PMID 12421765.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Londin ER, Meng H, Gruen JR (2004). "A transcription map of the 6p22.3 reading disability locus identifying candidate genes.". BMC Genomics 4: 25. doi:10.1186/1471-2164-4-25. PMC 166143. PMID 12834540.
• Mungall AJ, Palmer SA, Sims SK, et al. (2003). "The DNA sequence and analysis of human chromosome 6.". Nature 425 (6960): 805–11. doi:10.1038/nature02055. PMID 14574404.
• Francks C, Paracchini S, Smith SD, et al. (2005). "A 77-kilobase region of chromosome 6p22.2 is associated with dyslexia in families from the United Kingdom and from the United States.". Am. J. Hum. Genet. 75 (6): 1046–58. doi:10.1086/426404. PMC 1182140. PMID 15514892.
• Cope N, Harold D, Hill G, et al. (2005). "Strong evidence that KIAA0319 on chromosome 6p is a susceptibility gene for developmental dyslexia.". Am. J. Hum. Genet. 76 (4): 581–91. doi:10.1086/429131. PMC 1199296. PMID 15717286.
• Paracchini S, Thomas A, Castro S, et al. (2006). "The chromosome 6p22 haplotype associated with dyslexia reduces the expression of KIAA0319, a novel gene involved in neuronal migration.". Hum. Mol. Genet. 15 (10): 1659–66. doi:10.1093/hmg/ddl089. PMID 16600991.
• Luciano M, Lind PA, Duffy DL, et al. (2007). "A haplotype spanning KIAA0319 and TTRAP is associated with normal variation in reading and spelling ability.". Biol. Psychiatry 62 (7): 811–7. doi:10.1016/j.biopsych.2007.03.007. PMID 17597587.
• Velayos-Baeza A, Toma C, da Roza S, et al. (2008). "Alternative splicing in the dyslexia-associated gene KIAA0319.". Mamm. Genome 18 (9): 627–34. doi:10.1007/s00335-007-9051-3. PMID 17846832.

External links

• KIAA0319 Associations, Experiments, Publications and Clinical Trials