Entry |
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Name |
Glycosaminoglycan biosynthesis - keratan sulfate
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Description |
Keratan sulfate (KS) is a glycosaminoglycan with the basic disaccharide unit of N-acetyllactosamine, Gal(b1-4)GlcNAc(b1-3), with sulfate esters at C-6 of GlcNAc and Gal residues. There are two types of KS distinguished by the protein linkage: type I for N-linked via the N-glycan core structure and type II for O-linked via the O-glycan core 2 structure.
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Class |
Metabolism; Glycan biosynthesis and metabolism
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Pathway map |
map00533 | Glycosaminoglycan biosynthesis - keratan sulfate |

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Disease |
H00954 | Macular corneal dystrophy |
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Reference |
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Authors |
Funderburgh JL. |
Title |
Keratan sulfate: structure, biosynthesis, and function. |
Journal |
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Reference |
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Authors |
Seko A, Yamashita K. |
Title |
beta1,3-N-Acetylglucosaminyltransferase-7 (beta3Gn-T7) acts efficiently on keratan sulfate-related glycans. |
Journal |
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Reference |
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Authors |
Seko A, Dohmae N, Takio K, Yamashita K. |
Title |
Beta 1,4-galactosyltransferase (beta 4GalT)-IV is specific for GlcNAc 6-O-sulfate. Beta 4GalT-IV acts on keratan sulfate-related glycans and a precursor glycan of 6-sulfosialyl-Lewis X. |
Journal |
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Related pathway |
map00512 | Mucin type O-glycan biosynthesis |
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KO pathway |
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