background:
Mannosyltransferase involved in the last steps of the synthesis of Man5GlcNAc(2)-PP-dolichol core oligosaccharide on the cytoplasmic face of the endoplasmic reticulum. Catalyzes the addition of the 4th and 5th mannose residues to the dolichol-linked oligosaccharide chain.
Involvement in disease:Defects in ALG11 are the cause of congenital disorder of glycosylation type 1P (CDG1P). A multisystem disorder caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions.
Function:
Mannosyltransferase involved in the last steps of the synthesis of Man5GlcNAc(2)-PP-dolichol core oligosaccharide on the cytoplasmic face of the endoplasmic reticulum. Catalyzes the addition of the 4th and 5th mannose residues to the dolichol-linked oligosaccharide chain.
Subcellular Location:
Endoplasmic reticulum. Endoplasmic reticulum membrane; Multi-pass membrane protein (Probable).
DISEASE:
Defects in ALG11 are the cause of congenital disorder of glycosylation type 1P (CDG1P) [MIM:613661]. A multisystem disorder caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions.
Similarity:
Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 4 subfamily.
Database links:
Entrez Gene: 88138 Human
Entrez Gene: 207958 Mouse
Entrez Gene: 361174 Rat
Omim: 613666 Human
SwissProt: Q2TAA5 Human
SwissProt: Q3TZM9 Mouse
Unigene: 512963 Human
Unigene: 267439 Mouse
Unigene: 49282 Mouse
Unigene: 37199 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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