KEGG   ENZYME: 2.4.1.146Help
Entry
EC 2.4.1.146                Enzyme                                 

Name
beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase;
O-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase II;
uridine diphosphoacetylglucosamine-mucin beta(1->3)-acetylglucosaminyltransferase (elongating);
elongation 3beta-GalNAc-transferase;
UDP-N-acetyl-D-glucosamine:O-glycosyl-glycoprotein (N-acetyl-D-glucosamine to beta-D-galactose of beta-D-galactosyl-1,3-(N-acetyl-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R) beta-1,3-N-acetyl-D-glucosaminyltransferase;
UDP-N-acetyl-D-glucosamine:beta-D-galactosyl-(1->3)-[N-acetyl-D-glucosaminyl-(1->6)]-N-acetyl-D-galactosaminyl-R 3-beta-N-acetyl-D-glucosaminyltransferase;
B3GNT3 (gene name)
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
UDP-N-acetyl-alpha-D-glucosamine:3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] 3-beta-N-acetyl-D-glucosaminyltransferase (configuration-inverting)
Reaction(IUBMB)
UDP-N-acetyl-alpha-D-glucosamine + 3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] = UDP + 3-O-{N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] [RN:R04636 R05901]
Reaction(KEGG)
Substrate
UDP-N-acetyl-alpha-D-glucosamine [CPD:C00043];
3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein]
Product
UDP [CPD:C00015];
3-O-{N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein]
Comment
The enzyme catalyses the addition of N-acetyl-alpha-D-glucosamine to the core 2 structure of O-glycans.
History
EC 2.4.1.146 created 1984, modified 2018
Orthology
K07970  beta-1,3-N-acetylglucosaminyltransferase 3
Genes
HSA: 10331(B3GNT3)
PTR: 455847(B3GNT3)
PPS: 100982986(B3GNT3)
GGO: 101151557(B3GNT3)
PON: 100433243(B3GNT3)
NLE: 100596245(B3GNT3)
MCC: 719221(B3GNT3)
MCF: 102134304(B3GNT3)
CSAB: 103234153(B3GNT3)
RRO: 104660961(B3GNT3)
RBB: 108534279(B3GNT3)
CJC: 100404385(B3GNT3)
SBQ: 101033879(B3GNT3)
MMU: 72297(B3gnt3)
RNO: 290638(B3gnt3)
CGE: 100773213(B3gnt3)
NGI: 103726889(B3gnt3)
HGL: 101713138(B3gnt3)
CCAN: 109698339(B3gnt3)
TUP: 102472378(B3GNT3) 102476277
CFA: 484831(B3GNT3)
AML: 100473756(B3GNT3)
UMR: 103675168(B3GNT3)
ORO: 101368545(B3GNT3)
FCA: 101092089(B3GNT3)
PTG: 102965987(B3GNT3)
AJU: 106969093(B3GNT3)
BTA: 784997(B3GNT3)
BOM: 102281061(B3GNT3)
BIU: 109560822(B3GNT3)
CHX: 102171777(B3GNT3)
OAS: 101113066(B3GNT3)
SSC: 100518473(B3GNT3)
CFR: 102512477(B3GNT3)
CDK: 105101856(B3GNT3)
BACU: 103012961(B3GNT3)
LVE: 103080965(B3GNT3)
OOR: 101282171(B3GNT3)
ECB: 100146466(B3GNT3)
EPZ: 103542315(B3GNT3)
EAI: 106830835(B3GNT3)
MYB: 102254606(B3GNT3)
MYD: 102767713(B3GNT3)
HAI: 109382386(B3GNT3)
RSS: 109450104(B3GNT3)
PALE: 102882932(B3GNT3)
LAV: 100673587(B3GNT3)
MDO: 100010637(B3GNT3)
SHR: 100920625(B3GNT3)
OAA: 100086714
MGP: 100549756(B3GNT3)
CJO: 107325454(B3GNT3)
APLA: 101789872(B3GNT3)
ACYG: 106048207(B3GNT3)
FPG: 106112886(B3GNT3)
FCH: 102054592(B3GNT3)
CLV: 102095902(B3GNT3)
EGZ: 104124478(B3GNT3)
AAM: 106486607
ASN: 102373956(B3GNT3)
AMJ: 106737906(B3GNT3)
PSS: 102443521(B3GNT3)
CMY: 102944348(B3GNT3)
CPIC: 101936651(B3GNT3)
PVT: 110072506(B3GNT3)
PBI: 103061136(B3GNT3)
GJA: 107120629(B3GNT3)
XTR: 100145701(b3gnt3) 100494334
DRE: 100002020(b3gnt3.2) 561172(b3gnt3.4)
SRX: 107755313
SANH: 107665060 107700302(b3gnt3)
SGH: 107599054
AMEX: 103026573(b3gnt3)
TRU: 101072648(b3gnt3)
NCC: 104958016
SDU: 111218271(b3gnt3) 111235274
HCQ: 109519123(b3gnt3)
BPEC: 110160181
MALB: 109958356
OTW: 112250760
SFM: 108930515(b3gnt3)
LCM: 102345207(B3GNT3)
CMK: 103181970(b3gnt3)
 » show all
Taxonomy
Reference
1  [PMID:6226356]
  Authors
Brockhausen I, Rachaman ES, Matta KL, Schachter H.
  Title
The separation by liquid chromatography (under elevated pressure) of phenyl, benzyl, and O-nitrophenyl glycosides of oligosaccharides. Analysis of substrates and products for four N-acetyl-D-glucosaminyl-transferases involved in mucin synthesis.
  Journal
Carbohydr Res 120:3-16 (1983)
DOI:10.1016/0008-6215(83)88002-1
Reference
2  [PMID:11042166]
  Authors
Shiraishi N, Natsume A, Togayachi A, Endo T, Akashima T, Yamada Y, Imai N, Nakagawa S, Koizumi S, Sekine S, Narimatsu H, Sasaki K.
  Title
Identification and characterization of three novel beta 1,3-N-acetylglucosaminyltransferases structurally related to the beta 1,3-galactosyltransferase family.
  Journal
J Biol Chem 276:3498-507 (2001)
DOI:10.1074/jbc.M004800200
Other DBs
ExplorEnz - The Enzyme Database: 2.4.1.146
IUBMB Enzyme Nomenclature: 2.4.1.146
ExPASy - ENZYME nomenclature database: 2.4.1.146
BRENDA, the Enzyme Database: 2.4.1.146
CAS: 87927-99-9

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