NGLY1

NGLY1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesNGLY1, CDG1V, PNG1, PNGase, CDDG, N-glycanase 1, PNG-1
External IDsOMIM: 610661; MGI: 1913276; HomoloGene: 10117; GeneCards: NGLY1; OMA:NGLY1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001145293
NM_001145294
NM_001145295
NM_018297
NM_025105

NM_021504
NM_001362432
NM_001362433

RefSeq (protein)

NP_001138765
NP_001138766
NP_001138767
NP_060767

NP_067479
NP_001349361
NP_001349362

Location (UCSC)Chr 3: 25.72 – 25.79 MbChr 14: 6.16 – 6.22 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

PNGase also known as N-glycanase 1 (EC 3.5.1.52) or peptide-N(4)-(N-acetyl-beta-glucosaminyl)asparagine amidase is an enzyme that in humans is encoded by the NGLY1 gene. PNGase is a de-N-glycosylating enzyme that removes N-linked or asparagine-linked glycans (N-glycans) from glycoproteins.[5][6][7] More specifically, NGLY1 catalyzes the hydrolysis of the amide bond between the innermost N-acetylglucosamine (GlcNAc) and an Asn residue on an N-glycoprotein, generating a de-N-glycosylated protein, in which the N-glycoylated Asn residue is converted to asp, and a 1-amino-GlcNAc-containing free oligosaccharide. Ammonia is then spontaneously released from the 1-amino GlcNAc at physiological pH (<8), giving rise to a free oligosaccharide with an N,N’-diacetylchitobiose structure at the reducing end.

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000151092Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000021785Ensembl, 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. ^ Hirayama H, Hosomi A, Suzuki T (May 2015). "Physiological and molecular functions of the cytosolic peptide:N-glycanase". Seminars in Cell & Developmental Biology. 41: 110–120. doi:10.1016/j.semcdb.2014.11.009. PMID 25475175.
  6. ^ Suzuki T (January 2015). "The cytoplasmic peptide:N-glycanase (Ngly1)-basic science encounters a human genetic disorder". Journal of Biochemistry. 157 (1): 23–34. doi:10.1093/jb/mvu068. PMID 25398991.
  7. ^ Suzuki T, Huang C, Fujihira H (February 2016). "The cytoplasmic peptide:N-glycanase (NGLY1) - Structure, expression and cellular functions". Gene. 577 (1): 1–7. doi:10.1016/j.gene.2015.11.021. PMC 4691572. PMID 26611529.