UDP-glucose LOS-beta-1,4 glucosyltransferase is required for biosynthesis of lipooligosaccharide. UDP-glucose: lipooligosaccharide (LOS) beta-1-4-glucosyltransferase catalyzes the addition of the first residue, glucose, of the lacto-N-neotetrase structure to HepI of the LOS inner core. LOS is the major constituent of the outer leaflet of the outer membrane of gram-positive bacteria. It consists of a short oligosaccharide chain of variable composition (alpha chain) attached to a branched inner core which is lined in turn to lipid A. Beta 1,4 glucosyltransferase is required to attach the alpha chain to the inner core.

peptide S-glycosyltransferase, SunS family. Members of this family include SunS, the S-glycosyltransferase that transfers a sugar (substrate is variable in reconstitution assays) onto the precursor of the glycopeptide sublancin, which once was thought to be a lantibiotic.

Glycosyl transferase family 2. Diverse family, transferring sugar from UDP-glucose, UDP-N-acetyl- galactosamine, GDP-mannose or CDP-abequose, to a range of substrates including cellulose, dolichol phosphate and teichoic acids.

Glycosyltransferase involved in cell wall bisynthesis [Cell wall/membrane/envelope biogenesis].

Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a common GT-A type structural fold. Glycosyltransferases (GTs) are enzymes that synthesize oligosaccharides, polysaccharides, and glycoconjugates by transferring the sugar moiety from an activated nucleotide-sugar donor to an acceptor molecule, which may be a growing oligosaccharide, a lipid, or a protein. Based on the stereochemistry of the donor and acceptor molecules, GTs are classified as either retaining or inverting enzymes. To date, all GT structures adopt one of two possible folds, termed GT-A fold and GT-B fold. This hierarchy includes diverse families of glycosyl transferases with a common GT-A type structural fold, which has two tightly associated beta/alpha/beta domains that tend to form a continuous central sheet of at least eight beta-strands. The majority of the proteins in this superfamily are Glycosyltransferase family 2 (GT-2) proteins. But it also includes families GT-43, GT-6, GT-8, GT13 and GT-7; which are evolutionarily related to GT-2 and share structure similarities.

ChainA, SPbeta prophage-derived glycosyltransferase SunS [Bacillus subtilis subsp. subtilis str. 168],7MSP_B Chain B, SPbeta prophage-derived glycosyltransferase SunS [Bacillus subtilis subsp. subtilis str. 168]

ChainA, SPbeta prophage-derived glycosyltransferase SunS [Bacillus subtilis subsp. subtilis str. 168],7MSN_B Chain B, SPbeta prophage-derived glycosyltransferase SunS [Bacillus subtilis subsp. subtilis str. 168]

ChainA, Glyco_trans_2-like domain-containing protein [Bacillus thuringiensis serovar andalousiensis BGSC 4AW1],7MSK_B Chain B, Glyco_trans_2-like domain-containing protein [Bacillus thuringiensis serovar andalousiensis BGSC 4AW1]

SPbeta prophage-derived glycosyltransferase SunS OS=Bacillus subtilis (strain 168) OX=224308 GN=sunS PE=1 SV=1

Glycosyltransferase SunS OS=Bacillus phage SPbeta OX=66797 GN=sunS PE=3 SV=1

TPR repeat-containing protein Synpcc7942_0270 OS=Synechococcus elongatus (strain PCC 7942 / FACHB-805) OX=1140 GN=Synpcc7942_0270 PE=4 SV=1

Uncharacterized glycosyltransferase HI_0653 OS=Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) OX=71421 GN=HI_0653 PE=3 SV=1

Uncharacterized glycosyltransferase RF_0337 OS=Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) OX=315456 GN=RF_0337 PE=3 SV=1