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SpaA isopeptide-forming pilin-related protein
This HMM described a domain that is often repeated in pilins such as SpaA, and that often forms isopeptide bonds cross-linking amino acid side chains, giving the pilins added strength.
Cys-Gln thioester bond-forming surface protein
This HMM describes a domain commonly found in surface-anchored bacterial proteins such as adhesins, in which a thioester bond forms between a conserved Cys and a conserved Gln.
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