DPM2

Dolichol phosphate-mannose biosynthesis regulatory protein is a protein that in humans is encoded by the DPM2 gene.[5]

DPM2
Identifiers
AliasesDPM2, CDG1U, dolichyl-phosphate mannosyltransferase polypeptide 2, regulatory subunit, dolichyl-phosphate mannosyltransferase subunit 2, regulatory
External IDsOMIM: 603564 MGI: 1330238 HomoloGene: 99726 GeneCards: DPM2
Orthologs
SpeciesHumanMouse
Entrez

8818

13481

Ensembl

ENSG00000136908

ENSMUSG00000026810

UniProt

O94777

Q9Z324

RefSeq (mRNA)

NM_152690
NM_003863

NM_010073

RefSeq (protein)

NP_003854
NP_001365365
NP_001365366

NP_034203

Location (UCSC)Chr 9: 127.94 – 127.94 MbChr 2: 32.46 – 32.46 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Function

Dolichol-phosphate mannose (Dol-P-Man) serves as a donor of mannosyl residues on the lumenal side of the endoplasmic reticulum (ER). Lack of Dol-P-Man results in defective surface expression of GPI-anchored proteins, defective N-linked glycosylation and deficient O-mannosylation of α-dystroglycan. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. The protein encoded by this gene is a hydrophobic protein that contains 2 predicted transmembrane domains and a putative ER localization signal near the C-terminus. This protein associates with DPM1 in vivo and is required for the ER localization and stable expression of DPM1 and also enhances the binding of dolichol-phosphate to DPM1.[5]

Clinical significance

Mutations in this gene are associated with congenital disorder of glycosylation.

References

  1. GRCh38: Ensembl release 89: ENSG00000136908 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000026810 - 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. "Entrez Gene: dolichyl-phosphate mannosyltransferase polypeptide 2".

Further reading

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


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