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UDP-N-acetylglucosamine-dolichyl-phosphate N-acetylglucosaminephosphotransferase; GlcNAc-1-P transferase; G1PT; GPT; N-acetylglucosamine-1-phosphate transferase (DPAGT1, DPAGT2)

Function: - catalyzes initial step in the synthesis of dolichol-pyrophosphate-oligosaccharides - protein modification; protein glycosylation UDP-N-acetyl-D-glucosamine + dolichyl phosphate = UMP + N-acetyl-D-glucosaminyl-diphosphodolichol Structure: belongs to the glycosyltransferase 4 family Compartment: - endoplasmic reticulum membrane - multi-pass membrane protein Alternative splicing: named isoforms=3 Pathology: - defects in DPAGT1 are the cause of congenital disorder of glycosylation type 1J

Related

congenital disorder of glycosylation type 1J dolichol phosphate UDP N-acetylglucosamine (UDP-GlcNAc)

General

glycoprotein phosphotransferase transmembrane 10e protein

Properties

SIZE: entity length = 408 aa MW = 46 kD COMPARTMENT: endoplasmic reticulum MOTIF: exoplasmic domain {1-6} transmembrane domain {7-32} cytoplasmic loop {33-57} transmembrane domain {58-79} MOTIF: Dolichol recognition {67-79} exoplasmic loop {80-94} transmembrane domain {95-114} cytoplasmic loop {115-125} transmembrane domain {126-145} exoplasmic loop {146-164} MOTIF: N-glycosylation site {N146} transmembrane domain {165-184} cytoplasmic loop {185-194} transmembrane domain {195-211} exoplasmic loop {212-221} transmembrane domain {222-240} MOTIF: Dolichol recognition {222-234} cytoplasmic loop {241-252} transmembrane domain {253-269} exoplasmic loop {270-274} transmembrane domain {275-294} cytoplasmic loop {295-378} transmembrane domain {379-397} exoplasmic domain {398-408}

Database Correlations

OMIM correlations MORBIDMAP 191350 UniProt Q9H3H5 Pfam PF00953 Entrez Gene 1798 Kegg hsa:1798 ENZYME 2.7.8.15

References

  1. UniProt :accession Q9H3H5
  2. GGDB; Note: glycogene database http://riodb.ibase.aist.go.jp/rcmg/ggdb/
  3. Functional glycomics gateway - GTase; Note: UDP-N-acetylglucosamine-dolichyl-phosphate N- http://www.functionalglycomics.org/glycomics/molecule/jsp/glycoEnzyme/viewglycoEnzyme.jsp?gbpId=gt_hum_543