Review Article

S-Layer Glycoproteins and Flagellins: Reporters of Archaeal Posttranslational Modifications

Table 2

Effects of M. maripaludis and M. voltae agl deletions.

GeneRoleEffect1 of deletion on:
Cell flagellationMotilityFlagellin SDS-PAGE migrationN-linked glycan structureReference

M. maripaludis
aglA GTase2 (sugar 3)PresentDecreasedIncreasedDisaccharide[116]
aglB OTase3 AbsentNon-motileIncreasedNo glycan[116]
aglL GTase (sugar 4)PresentDecreasedIncreasedModified trisaccharide[116]
aglO GTase (sugar 2)AbsentNon-motileIncreasedMonosaccharide[116]
MMP0350 Acetyltransferase (sugar 2) AbsentNon-motileIncreasedMonosaccharide[117]
MMP1081 Acetamidino transfer (sugar 3) AbsentDecreasedIncreasedModified trisaccharideunp
MMP1085 Methyltransferase (sugar 4)Presentn.d.IncreasedModified tetrasaccharideunp

M. voltae
aglA GTase (sugar 3)Presentn.d.IncreasedDisaccharide[115]
aglB OTaseAbsentNon-motileIncreasedNo glycan[115]
aglC GTase (sugar 2)Absentn.d.IncreasedMonosaccharide[125]
aglK GTase (sugar 2)Absentn.d.IncreasedMonosaccharide[125]

N. B.: M. maripaludis wild type N-linked glycan is a tetrasaccharide, M. voltae wild type N-linked glycan is a trisaccharide.
1 Relative to level detected in parent strain.
2 GTase: glycosyltransferase.
3 OTase: oligosaccharyltransferase.
4 n.d.: not determined.
5unp: unpublished data.