4-amino-4-deoxy-L-arabinose transferase or related glycosyltransferase of PMT family [Cell wall/membrane/envelope biogenesis].

lipid IV(A) 4-amino-4-deoxy-L-arabinosyltransferase.

Dolichyl-phosphate-mannose-protein mannosyltransferase. This family contains members that are not captured by pfam02366.

6-pyruvoyl-tetrahydropterin synthase related domain; membrane protein. This domain is found in various bacterial hypothetical membrane proteins, as well as in tetratricopeptide TPR_2 repeat protein. The exact function of the domain has not, as yet, been established.

Dolichyl-phosphate-mannose-protein mannosyltransferase. This is a family of Dolichyl-phosphate-mannose-protein mannosyltransferase proteins EC:2.4.1.109. These proteins are responsible for O-linked glycosylation of proteins, they catalyze the reaction:- Dolichyl phosphate D-mannose + protein <=> dolichyl phosphate + O-D-mannosyl-protein. Also in this family is Drosophila rotated abdomen protein which is a putative mannosyltransferase. This family appears to be distantly related to pfam02516 (A Bateman pers. obs.). This family also contains sequences from ArnTs (4-amino-4-deoxy-L-arabinose lipid A transferase). They catalyze the addition of 4-amino-4-deoxy-l-arabinose (l-Ara4N) to the lipid A moiety of the lipopolysaccharide. This is a critical modification enabling bacteria (e.g. Escherichia coli and Salmonella typhimurium) to resist killing by antimicrobial peptides such as polymyxins. Members such as undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase are predicted to have 12 trans-membrane regions. The N-terminal portion of these proteins is hypothesized to have a conserved glycosylation activity which is shared between distantly related oligosaccharyltransferases ArnT and PglB families.

CrystalStructure of ArnT from Cupriavidus metallidurans in the apo state [Cupriavidus metallidurans CH34],5F15_A Crystal Structure of ArnT from Cupriavidus metallidurans bound to Undecaprenyl phosphate [Cupriavidus metallidurans CH34]

Uncharacterized protein aq_1220 OS=Aquifex aeolicus (strain VF5) OX=224324 GN=aq_1220 PE=3 SV=1

Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase OS=Aeromonas hydrophila subsp. hydrophila (strain ATCC 7966 / DSM 30187 / BCRC 13018 / CCUG 14551 / JCM 1027 / KCTC 2358 / NCIMB 9240 / NCTC 8049) OX=380703 GN=arnT PE=3 SV=1

Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase OS=Shewanella sediminis (strain HAW-EB3) OX=425104 GN=arnT PE=3 SV=1

Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase OS=Edwardsiella ictaluri (strain 93-146) OX=634503 GN=arnT PE=3 SV=1

Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase OS=Aeromonas salmonicida (strain A449) OX=382245 GN=arnT PE=3 SV=1