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Aliases LARGE1, MDC1D, MDDGA6, MDDGB6, LARGE, like-glycosyltransferase, LARGE xylosyl- and glucuronyltransferase 1
External IDs MGI: 1342270 HomoloGene: 7810 GeneCards: LARGE1
Gene location (Human)
Chromosome 22 (human)
Chr. Chromosome 22 (human)[1]
Chromosome 22 (human)
Genomic location for LARGE1
Genomic location for LARGE1
Band 22q12.3 Start 33,162,226 bp[1]
End 33,922,841 bp[1]
RNA expression pattern
PBB GE LARGE 215543 s at fs.png

PBB GE LARGE 204414 at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 22: 33.16 – 33.92 Mb Chr 22: 72.81 – 73.35 Mb
PubMed search [3] [4]
View/Edit Human View/Edit Mouse

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


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.


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000133424 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000004383 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". 
  4. ^ "Mouse PubMed Reference:". 
  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 15182Freely accessible. 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. ^ a b c 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. ^ a b "Entrez Gene: LARGE like-glycosyltransferase". 

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