• protein O-linked mannosylation • protein N-linked glycosylation via asparagine • protein glycosylation • GPI anchor biosynthetic process • protein mannosylation • dolichol metabolic process
Sources:Amigo / QuickGO
Orthologs
Species
Human
Mouse
Entrez
8813
13480
Ensembl
ENSG00000000419
ENSMUSG00000078919
UniProt
O60762
O70152
RefSeq (mRNA)
NM_003859 NM_001317034 NM_001317035 NM_001317036
NM_010072 NM_001310084
RefSeq (protein)
NP_001303963 NP_001303964 NP_001303965 NP_003850
NP_001297013 NP_034202
Location (UCSC)
Chr 20: 50.93 – 50.96 Mb
Chr 2: 168.21 – 168.23 Mb
PubMed search
[3]
[4]
Wikidata
View/Edit Human
View/Edit Mouse
Dolichol-phosphate mannosyltransferase is an enzyme that in humans is encoded by the DPM1 gene.[5][6][7]
Contents
1Function
2Model organisms
3References
4Further reading
5External links
Function[edit]
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. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. Human DPM1 lacks a carboxy-terminal transmembrane domain and signal sequence and is regulated by DPM2.[7]
Model organisms[edit]
Model organisms have been used in the study of DPM1 function. A conditional knockout mouse line called Dpm1tm1b(KOMP)Wtsi was generated at the Wellcome Trust Sanger Institute.[8] Male and female animals underwent a standardized phenotypic screen[9] to determine the effects of deletion.[10][11][12][13] Additional screens performed: - In-depth immunological phenotyping[14]
Dpm1 knockout mouse phenotype
Characteristic
Phenotype
All data available at.[9][14]
Peripheral blood leukocytes 6 Weeks
Normal
Insulin
Normal
Haematology 6 Weeks
Normal
Homozygous viability at P14
Abnormal
Recessive lethal study
Abnormal
Body weight
Normal
Neurological assessment
Normal
Grip strength
Normal
Dysmorphology
Normal
Indirect calorimetry
Normal
Glucose tolerance test
Normal
Auditory brainstem response
Normal
DEXA
Normal
Radiography
Normal
Eye morphology
Normal
Clinical chemistry
Normal
Haematology 16 Weeks
Normal
Peripheral blood leukocytes 16 Weeks
Normal
Heart weight
Normal
Salmonella infection
Normal
Cytotoxic T Cell Function
Normal
Spleen Immunophenotyping
Normal
Mesenteric Lymph Node Immunophenotyping
Normal
Bone Marrow Immunophenotyping
Normal
Epidermal Immune Composition
Normal
References[edit]
^ abcGRCh38: Ensembl release 89: ENSG00000000419 - Ensembl, May 2017
^ abcGRCm38: Ensembl release 89: ENSMUSG00000078919 - Ensembl, May 2017
^Colussi PA, Taron CH, Mack JC, Orlean P (Jul 1997). "Human and Saccharomyces cerevisiae dolichol phosphate mannose synthases represent two classes of the enzyme, but both function in Schizosaccharomyces pombe". Proceedings of the National Academy of Sciences of the United States of America. 94 (15): 7873–8. doi:10.1073/pnas.94.15.7873. PMC 21522. PMID 9223280.
^Tomita S, Inoue N, Maeda Y, Ohishi K, Takeda J, Kinoshita T (Apr 1998). "A homologue of Saccharomyces cerevisiae Dpm1p is not sufficient for synthesis of dolichol-phosphate-mannose in mammalian cells". The Journal of Biological Chemistry. 273 (15): 9249–54. doi:10.1074/jbc.273.15.9249. PMID 9535917.
^Gerdin AK (2010). "The Sanger Mouse Genetics Programme: high throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x.
^ ab"International Mouse Phenotyping Consortium".
^Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, Mujica AO, Thomas M, Harrow J, Cox T, Jackson D, Severin J, Biggs P, Fu J, Nefedov M, de Jong PJ, Stewart AF, Bradley A (Jun 2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–42. doi:10.1038/nature10163. PMC 3572410. PMID 21677750.
^Dolgin E (Jun 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
^Collins FS, Rossant J, Wurst W (Jan 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247.
^White JK, Gerdin AK, Karp NA, Ryder E, Buljan M, Bussell JN, Salisbury J, Clare S, Ingham NJ, Podrini C, Houghton R, Estabel J, Bottomley JR, Melvin DG, Sunter D, Adams NC, Tannahill D, Logan DW, Macarthur DG, Flint J, Mahajan VB, Tsang SH, Smyth I, Watt FM, Skarnes WC, Dougan G, Adams DJ, Ramirez-Solis R, Bradley A, Steel KP (Jul 2013). "Genome-wide generation and systematic phenotyping of knockout mice reveals new roles for many genes". Cell. 154 (2): 452–64. doi:10.1016/j.cell.2013.06.022. PMC 3717207. PMID 23870131.
^ ab"Infection and Immunity Immunophenotyping (3i) Consortium".
Maeda Y, Tomita S, Watanabe R, Ohishi K, Kinoshita T (Sep 1998). "DPM2 regulates biosynthesis of dolichol phosphate-mannose in mammalian cells: correct subcellular localization and stabilization of DPM1, and binding of dolichol phosphate". The EMBO Journal. 17 (17): 4920–9. doi:10.1093/emboj/17.17.4920. PMC 1170821. PMID 9724629.
Imbach T, Schenk B, Schollen E, Burda P, Stutz A, Grunewald S, Bailie NM, King MD, Jaeken J, Matthijs G, Berger EG, Aebi M, Hennet T (Jan 2000). "Deficiency of dolichol-phosphate-mannose synthase-1 causes congenital disorder of glycosylation type Ie". The Journal of Clinical Investigation. 105 (2): 233–9. doi:10.1172/JCI8691. PMC 377434. PMID 10642602.
Maeda Y, Tanaka S, Hino J, Kangawa K, Kinoshita T (Jun 2000). "Human dolichol-phosphate-mannose synthase consists of three subunits, DPM1, DPM2 and DPM3". The EMBO Journal. 19 (11): 2475–82. doi:10.1093/emboj/19.11.2475. PMC 212771. PMID 10835346.
García-Silva MT, Matthijs G, Schollen E, Cabrera JC, Sanchez del Pozo J, Martí Herreros M, Simón R, Maties M, Martín Hernández E, Hennet T, Briones P (2005). "Congenital disorder of glycosylation (CDG) type Ie. A new patient". Journal of Inherited Metabolic Disease. 27 (5): 591–600. doi:10.1023/B:BOLI.0000042984.42433.d8. PMID 15669674.
Ashida H, Maeda Y, Kinoshita T (Jan 2006). "DPM1, the catalytic subunit of dolichol-phosphate mannose synthase, is tethered to and stabilized on the endoplasmic reticulum membrane by DPM3". The Journal of Biological Chemistry. 281 (2): 896–904. doi:10.1074/jbc.M511311200. PMID 16280320.
Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M (Nov 2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.
Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, McBroom-Cerajewski L, Robinson MD, O'Connor L, Li M, Taylor R, Dharsee M, Ho Y, Heilbut A, Moore L, Zhang S, Ornatsky O, Bukhman YV, Ethier M, Sheng Y, Vasilescu J, Abu-Farha M, Lambert JP, Duewel HS, Stewart II, Kuehl B, Hogue K, Colwill K, Gladwish K, Muskat B, Kinach R, Adams SL, Moran MF, Morin GB, Topaloglou T, Figeys D (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Molecular Systems Biology. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.
External links[edit]
GeneReviews/NCBI/NIH/UW entry on Congenital Disorders of Glycosylation Overview
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