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EC 2.8.2.33 Details

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EC number

2.8.2.33

Accepted name

N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase

Reaction

(1) 3′-phospho-5′-adenylyl sulfate + [dermatan]-4-O-sulfo-N-acetyl-D-galactosamine = adenosine 3′,5′-bisphosphate + [dermatan]-4,6-di-O-sulfo-N-acetyl-D-galactosamine;;(2) 3′-phospho-5′-adenylyl sulfate + [chondroitin]-4-O-sulfo-N-acetyl-D-galactosamine = adenosine 3′,5′-bisphosphate + [chondroitin]-4,6-di-O-sulfo-N-acetyl-D-galactosamine

Other name(s)

GalNAc4S-6ST, CHST15 (gene name), 3′-phosphoadenylyl-sulfate:[dermatan]-4-O-sulfo-N-acetyl-D-galactosamine 6-O-sulfotransferase

Systematic name

3′-phosphoadenylyl-sulfate:[dermatan]-4-O-sulfo-N-acetyl-D-galactosamine 6-O-sulfonotransferase

CAS registry number

242469-38-1

Comment

The enzyme is activated by divalent cations and reduced glutathione. The enzyme from human transfers sulfate to position 6 of both internal residues and non-reducing terminal GalNAc 4-sulfate residues of chondroitin sulfate and dermatan sulfate. Oligosaccharides derived from chondroitin sulfate also serve as acceptors but chondroitin sulfate E, keratan sulfate and heparan sulfate do not. Differs from EC 2.8.2.17, chondroitin 6-sulfotransferase, in being able to use both chondroitin and dermatan as effective substrates

History

created 2005, modified 2010

EC Tree

1 Oxidoreductases

2 Transferases

2.1 Transferring one-carbon groups

2.2 Transferring aldehyde or ketonic groups

2.3 Acyltransferases

2.4 Glycosyltransferases

2.5 Transferring alkyl or aryl groups, other than methyl groups

2.6 Transferring nitrogenous groups

2.7 Transferring phosphorus-containing groups

2.8 Transferring sulfur-containing groups

2.8.1 Sulfurtransferases

2.8.2 Sulfotransferases

2.8.3 CoA-transferases

2.8.3.1 propionate CoA-transferase

2.8.3.2 oxalate CoA-transferase

2.8.3.3 malonate CoA-transferase

2.8.3.4 created 1961, deleted 1964

2.8.3.5 3-oxoacid CoA-transferase

2.8.3.6 3-oxoadipate CoA-transferase

2.8.3.7 succinate—citramalate CoA-transferase

2.8.3.8 acetate CoA-transferase

2.8.3.9 butyrate—acetoacetate CoA-transferase

2.8.3.10 citrate CoA-transferase

2.8.3.11 citramalate CoA-transferase

2.8.3.12 glutaconate CoA-transferase

2.8.3.13 succinate—hydroxymethylglutarate CoA-transferase

2.8.3.14 5-hydroxypentanoate CoA-transferase

2.8.3.15 succinyl-CoA:(R)-benzylsuccinate CoA-transferase

2.8.3.16 formyl-CoA transferase

2.8.3.17 3-(aryl)acryloyl-CoA:(R)-3-(aryl)lactate CoA-transferase

2.8.3.18 succinyl-CoA:acetate CoA-transferase

2.8.3.19 CoA:oxalate CoA-transferase

2.8.3.20 succinyl-CoA—D-citramalate CoA-transferase

2.8.3.21 L-carnitine CoA-transferase

2.8.3.22 succinyl-CoA—L-malate CoA-transferase

2.8.3.23 caffeate CoA-transferase

2.8.3.24 (R)-2-hydroxy-4-methylpentanoate CoA-transferase

2.8.3.25 bile acid CoA-transferase

2.8.3.26 succinyl-CoA:mesaconate CoA transferase

2.8.3.27 propanoyl-CoA:succinate CoA transferase

2.8.3.28 phenylsuccinyl-CoA transferase

2.8.4 Transferring alkylthio groups

2.8.5 Thiosulfotransferases

2.9 Transferring selenium-containing groups

2.10 Transferring molybdenum- or tungsten-containing groups

2.10.1 Molybdenumtransferases or tungstentransferases with sulfide groups as acceptors