Dolichol kinase

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dolichol kinase
Identifiers
EC no. 2.7.1.108
CAS no. 71768-07-5
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
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PMC articles
PubMed articles
NCBI proteins
DOLK
Identifiers
Aliases DOLK , CDG1M, DK, DK1, SEC59, TMEM15, dolichol kinase
External IDs OMIM: 610746 MGI: 2677836 HomoloGene: 8940 GeneCards: DOLK
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_014908

NM_177648

RefSeq (protein)

NP_055723

NP_808316

Location (UCSC) Chr 9: 128.95 – 128.95 Mb Chr 2: 30.17 – 30.18 Mb
PubMed search [3] [4]
Wikidata
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In enzymology, a dolichol kinase (EC 2.7.1.108) is an enzyme that catalyzes the chemical reaction

Contents

CTP + dolichol CDP + dolichyl phosphate

Thus, the two substrates of this enzyme are CTP and dolichol, whereas its two products are CDP and dolichyl phosphate.

This enzyme belongs to the family of transferases, to be specific, those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is CTP:dolichol O-phosphotransferase. This enzyme is also called dolichol phosphokinase. This enzyme participates in N-glycan biosynthesis.

In humans dolichol kinase is encoded by the DOLK gene. [5] [6] [7]

Function

Dolichyl monophosphate is an essential glycosyl carrier lipid for C- and O-mannosylation and N-glycosylation of proteins and for biosynthesis of glycosylphosphatidylinositol anchors in endoplasmic reticulum (ER). Dolichol kinase catalyzes CTP-mediated phosphorylation of dolichol, the terminal step in de novo dolichyl monophosphate biosynthesis. [8]

Clinical significance

Mutations in DOLK cause a subtype of the congenital disorders of glycosylation, DOLK-CDG (CDG-Im). [9]

See also

Related Research Articles

A congenital disorder of glycosylation is one of several rare inborn errors of metabolism in which glycosylation of a variety of tissue proteins and/or lipids is deficient or defective. Congenital disorders of glycosylation are sometimes known as CDG syndromes. They often cause serious, sometimes fatal, malfunction of several different organ systems in affected infants. The most common sub-type is PMM2-CDG where the genetic defect leads to the loss of phosphomannomutase 2 (PMM2), the enzyme responsible for the conversion of mannose-6-phosphate into mannose-1-phosphate

Dolichol refers to any of a group of long-chain mostly unsaturated organic compounds that are made up of varying numbers of isoprene units terminating in an α-saturated isoprenoid group, containing an alcohol functional group.

<span class="mw-page-title-main">CAD protein</span> Protein-coding gene in the species Homo sapiens

CAD protein is a trifunctional multi-domain enzyme involved in the first three steps of pyrimidine biosynthesis. De-novo synthesis starts with cytosolic carbamoylphosphate synthetase II which uses glutamine, carbon dioxide and ATP. This enzyme is inhibited by uridine triphosphate.

<span class="mw-page-title-main">MARK1</span> Protein-coding gene in the species Homo sapiens

Serine/threonine-protein kinase MARK1 is an enzyme that in humans is encoded by the MARK1 gene.

<span class="mw-page-title-main">UCK2</span> Protein-coding gene in the species Homo sapiens

Uridine-cytidine kinase 2 (UCK2) is an enzyme that in humans is encoded by the UCK2 gene.

<span class="mw-page-title-main">ALG6</span> Protein-coding gene in the species Homo sapiens

Dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase is an enzyme that in humans is encoded by the ALG6 gene.

<span class="mw-page-title-main">DPAGT1</span> Protein-coding gene in the species Homo sapiens

UDP-N-acetylglucosamine—dolichyl-phosphate N-acetylglucosaminephosphotransferase is an enzyme that in humans is encoded by the DPAGT1 gene.

<span class="mw-page-title-main">PMM1</span> Protein-coding gene in the species Homo sapiens

Phosphomannomutase 1 is an enzyme that in humans is encoded by the PMM1 gene.

<span class="mw-page-title-main">ALG2</span> Protein-coding gene in the species Homo sapiens

Alpha-1,3/1,6-mannosyltransferase ALG2 is an enzyme that is encoded by the ALG2 gene. Mutations in the human gene are associated with congenital defects in glycosylation The protein encoded by the ALG2 gene belongs to two classes of enzymes: GDP-Man:Man1GlcNAc2-PP-dolichol alpha-1,3-mannosyltransferase and GDP-Man:Man2GlcNAc2-PP-dolichol alpha-1,6-mannosyltransferase.

<span class="mw-page-title-main">DPM1</span> Protein-coding gene in the species Homo sapiens

Dolichol-phosphate mannosyltransferase is an enzyme that in humans is encoded by the DPM1 gene.

<span class="mw-page-title-main">MPDU1</span> Protein-coding gene in the species Homo sapiens

Mannose-P-dolichol utilization defect 1 protein is a protein that in humans is encoded by the MPDU1 gene.

<span class="mw-page-title-main">ALG12</span> Enzyme-coding gene in humans

Dolichyl-P-Man:Man(7)GlcNAc(2)-PP-dolichyl-alpha-1,6-mannosyltransferase is an enzyme that in humans is encoded by the ALG12 gene.

<span class="mw-page-title-main">ALG3</span> Protein-coding gene in the species Homo sapiens

Dolichyl-P-Man:Man(5)GlcNAc(2)-PP-dolichyl mannosyltransferase is an enzyme that, in humans, is encoded by the ALG3 gene.

<span class="mw-page-title-main">ALG1</span> Protein-coding gene in the species Homo sapiens

Chitobiosyldiphosphodolichol beta-mannosyltransferase is an enzyme that is encoded by ALG1 whose structure and function has been conserved from lower to higher organisms.

<span class="mw-page-title-main">CTPS2</span> Protein-coding gene in humans

CTP synthase 2 is an enzyme that in humans is encoded by the CTPS2 gene.

<span class="mw-page-title-main">Dehydrodolichyl diphosphate synthase</span> Enzyme found in humans

Dehydrodolichyl diphosphate synthase is an enzyme that in humans is encoded by the DHDDS gene.

<span class="mw-page-title-main">Dolichol kinase deficiency</span> Medical condition

Dolichol kinase deficiency is a cutaneous condition caused by a mutation in the dolichol kinase gene.

<span class="mw-page-title-main">DPM3</span> Protein-coding gene in the species Homo sapiens

dolichyl-phosphate mannosyltransferase polypeptide 3, also known as DPM3, is a human gene.

<span class="mw-page-title-main">DPM2</span> Protein-coding gene in the species Homo sapiens

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

<span class="mw-page-title-main">SRD5A3</span> Protein-coding gene in the species Homo sapiens

Steroid 5-alpha-reductase 3, also known as 3-oxo-5-alpha-steroid 4-dehydrogenase 3, is an enzyme that in humans is encoded by the SRD5A3 gene. It is one of three forms of 5α-reductase.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000175283 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000075419 - 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. Clark HF, Gurney AL, Abaya E, Baker K, Baldwin D, Brush J, Chen J, Chow B, Chui C, Crowley C, Currell B, Deuel B, Dowd P, Eaton D, Foster J, Grimaldi C, Gu Q, Hass PE, Heldens S, Huang A, Kim HS, Klimowski L, Jin Y, Johnson S, Lee J, Lewis L, Liao D, Mark M, Robbie E, Sanchez C, Schoenfeld J, Seshagiri S, Simmons L, Singh J, Smith V, Stinson J, Vagts A, Vandlen R, Watanabe C, Wieand D, Woods K, Xie MH, Yansura D, Yi S, Yu G, Yuan J, Zhang M, Zhang Z, Goddard A, Wood WI, Godowski P, Gray A (Oct 2003). "The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment". Genome Res. 13 (10): 2265–70. doi:10.1101/gr.1293003. PMC   403697 . PMID   12975309.
  6. Shridas P, Waechter CJ (Oct 2006). "Human dolichol kinase, a polytopic endoplasmic reticulum membrane protein with a cytoplasmically oriented CTP-binding site". J Biol Chem. 281 (42): 31696–704. doi:10.1074/jbc.M604087200. PMID   16923818.
  7. "Entrez Gene: DOLK dolichol kinase".
  8. Fernandez F, Shridas P, Jiang S, Aebi M, Waechter CJ (September 2002). "Expression and characterization of a human cDNA that complements the temperature-sensitive defect in dolichol kinase activity in the yeast sec59-1 mutant: the enzymatic phosphorylation of dolichol and diacylglycerol are catalyzed by separate CTP-mediated kinase activities in Saccharomyces cerevisiae" (PDF). Glycobiology (Submitted manuscript). 12 (9): 555–62. doi:10.1093/glycob/cwf068. PMID   12213788.
  9. Kranz C, Jungeblut C, Denecke J, Erlekotte A, Sohlbach C, Debus V, Kehl HG, Harms E, Reith A, Reichel S, Grobe H, Hammersen G, Schwarzer U, Marquardt T (March 2007). "A defect in dolichol phosphate biosynthesis causes a new inherited disorder with death in early infancy". Am. J. Hum. Genet. 80 (3): 433–40. doi:10.1086/512130. PMC   1821118 . PMID   17273964.

Further reading