LARGE

Glycosyltransferase-like protein LARGE1 is an enzyme that in humans is encoded by the LARGE gene.[5][6][7][8]

LARGE1
Identifiers
Aliases	LARGE1, MDC1D, MDDGA6, MDDGB6, LARGE, like-glycosyltransferase, LARGE xylosyl- and glucuronyltransferase 1
External IDs	OMIM: 603590 MGI: 1342270 HomoloGene: 7810 GeneCards: LARGE1
Gene location (Human) Chr. Chromosome 22 (human)[1] Band 22q12.3 Start 33,162,226 bp[1] End 33,922,841 bp[1]
Gene location (Mouse) Chr. Chromosome 8 (mouse)[2] Band 8 B3.3|8 35.08 cM Start 72,814,599 bp[2] End 73,353,540 bp[2]
RNA expression pattern More reference expression data
Gene ontology Molecular function • transferase activity • acetylglucosaminyltransferase activity • manganese ion binding • transferase activity, transferring glycosyl groups • metal ion binding • catalytic activity • UDP-xylosyltransferase activity • glucuronosyltransferase activity • xylosyltransferase activity • GO:0001948 protein binding Cellular component • integral component of membrane • integral component of Golgi membrane • Golgi apparatus • membrane • Golgi membrane • intracellular membrane-bounded organelle Biological process • glycosphingolipid biosynthetic process • glycoprotein biosynthetic process • protein glycosylation • metabolism • N-acetylglucosamine metabolic process • protein O-linked glycosylation • protein O-linked mannosylation • skeletal muscle tissue regeneration • muscle cell cellular homeostasis • skeletal muscle organ development Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	9215	16795
Ensembl	ENSG00000133424	ENSMUSG00000004383
UniProt	O95461	Q9Z1M7
RefSeq (mRNA)	NM_004737 NM_133642 NM_001362949 NM_001362951 NM_001362953	NM_010687 NM_001317391
RefSeq (protein)	NP_004728 NP_598397 NP_001349878 NP_001349880 NP_001349882 NP_001365553 NP_001365554 NP_001365555 NP_001365556 NP_001365557 NP_001365558 NP_001365559 NP_001365560	NP_001304320 NP_034817
Location (UCSC)	Chr 22: 33.16 – 33.92 Mb	Chr 8: 72.81 – 73.35 Mb
PubMed search	[3]	[4]
Wikidata
View/Edit Human View/Edit Mouse

Function

This gene, which is one of the largest in the human genome, encodes a member of the N-acetylglucosaminyltransferase gene family. The exact function of LARGE, a golgi protein, remains uncertain.[7] It encodes a glycosyltransferase which participates in glycosylation of alpha-dystroglycan, and may carry out the synthesis of glycoprotein and glycosphingolipid sugar chains. It may also be involved in the addition of a repeated disaccharide unit. Mutations in this gene cause MDC1D, a novel form of congenital muscular dystrophy with severe mental retardation and abnormal glycosylation of alpha-dystroglycan. Alternative splicing of this gene results in two transcript variants that encode the same protein.[7][8]

LARGE may also play a role in tumor-specific genomic rearrangements. Mutations in this gene may be involved in the development and progression of meningioma through modification of ganglioside composition and other glycosylated molecules in tumor cells.

References

1. GRCh38: Ensembl release 89: ENSG00000133424 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000004383 - 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. Peyrard M, Seroussi E, Sandberg-Nordqvist AC, Xie YG, Han FY, Fransson I, Collins J, Dunham I, Kost-Alimova M, Imreh S, Dumanski JP (Mar 1999). "The human LARGE gene from 22q12.3-q13.1 is a new, distinct member of the glycosyltransferase gene family". Proc Natl Acad Sci U S A. 96 (2): 598–603. doi:10.1073/pnas.96.2.598. PMC 15182. PMID 9892679.
6. Dunham I, Shimizu N, Roe BA, Chissoe S, Hunt AR, Collins JE, Bruskiewich R, Beare DM, Clamp M, Smink LJ, Ainscough R, Almeida JP, Babbage A, Bagguley C, Bailey J, Barlow K, Bates KN, Beasley O, Bird CP, Blakey S, Bridgeman AM, Buck D, Burgess J, Burrill WD, O'Brien KP, et al. (Dec 1999). "The DNA sequence of human chromosome 22". Nature. 402 (6761): 489–95. doi:10.1038/990031. PMID 10591208.
7. Longman C, Brockington M, Torelli S, Jimenez-Mallebrera C, Kennedy C, Khalil N, Feng L, Saran RK, Voit T, Merlini L, Sewry CA, Brown SC, Muntoni F (Oct 2003). "Mutations in the human LARGE gene cause MDC1D, a novel form of congenital muscular dystrophy with severe mental retardation and abnormal glycosylation of alpha-dystroglycan". Hum Mol Genet. 12 (21): 2853–61. doi:10.1093/hmg/ddg307. PMID 12966029.
8. "Entrez Gene: LARGE like-glycosyltransferase".

Further reading

• Nagase T, Ishikawa K, Miyajima N, et al. (1998). "Prediction of the coding sequences of unidentified human genes. IX. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro". DNA Res. 5 (1): 31–9. doi:10.1093/dnares/5.1.31. PMID 9628581.
• 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.
• Kanagawa M, Saito F, Kunz S, et al. (2004). "Molecular recognition by LARGE is essential for expression of functional dystroglycan". Cell. 117 (7): 953–64. doi:10.1016/j.cell.2004.06.003. PMID 15210115.
• Collins JE, Wright CL, Edwards CA, et al. (2005). "A genome annotation-driven approach to cloning the human ORFeome". Genome Biol. 5 (10): R84. doi:10.1186/gb-2004-5-10-r84. PMC 545604. PMID 15461802.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Brockington M, Torelli S, Prandini P, et al. (2005). "Localization and functional analysis of the LARGE family of glycosyltransferases: significance for muscular dystrophy". Hum. Mol. Genet. 14 (5): 657–65. doi:10.1093/hmg/ddi062. PMID 15661757.
• Fujimura K, Sawaki H, Sakai T, et al. (2005). "LARGE2 facilitates the maturation of alpha-dystroglycan more effectively than LARGE". Biochem. Biophys. Res. Commun. 329 (3): 1162–71. doi:10.1016/j.bbrc.2005.02.082. PMID 15752776.
• Grewal PK, McLaughlan JM, Moore CJ, et al. (2006). "Characterization of the LARGE family of putative glycosyltransferases associated with dystroglycanopathies". Glycobiology. 15 (10): 912–23. doi:10.1093/glycob/cwi094. PMID 15958417.

External links

• GeneReviews/NCBI/NIH/UW entry on Congenital Muscular Dystrophy Overview