GenProp0061 |
lipoprotein system lgt/lsp/lnt~Some membrane proteins are anchored to the membrane by a lipid moiety attached to a modified N-terminus rather than by a transmembrane helix. The characteristic enzymes of this modification system are lsp: prolipoprotein signal peptidase lgt: prolipoprotein diacylglycerol transferase lnt: apolipoprotein N-acyltransferase The modifications are cleavage (by Lsp) of the lipoprotein signal sequence at a motif resembling L-X-G/A-C to leave Cys as the new N-terminal residue, then modification of the Cys sulfhydryl by prolipoprotein diacylglyceryl transferase (Lgt), then acylation of the Cys NH2 by apolipoprotein N-acyltransferase (Lnt). |
None - {{∅}} |
Both - {{t},{f}} |
Unconfirmed contradictory |
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