stage VI sporulation protein D. SpoVID, the stage VI sporulation protein D, is restricted to endospore-forming members of the bacteria, all of which are found among the Firmicutes. It is widely distributed but not quite universal in this group. Between well-conserved N-terminal and C-terminal domains is a poorly conserved, low-complexity region of variable length, rich enough in glutamic acid to cause spurious BLAST search results unless a filter is used. The seed alignment for this model was trimmed, in effect, by choosing member sequences in which these regions are relatively short. SpoVID is involved in spore coat assembly by the mother cell compartment late in the process of sporulation. [Cellular processes, Sporulation and germination]

Lysin Motif is a small domain involved in binding peptidoglycan. LysM, a small globular domain with approximately 40 amino acids, is a widespread protein module involved in binding peptidoglycan in bacteria and chitin in eukaryotes. The domain was originally identified in enzymes that degrade bacterial cell walls, but proteins involved in many other biological functions also contain this domain. It has been reported that the LysM domain functions as a signal for specific plant-bacteria recognition in bacterial pathogenesis. Many of these enzymes are modular and are composed of catalytic units linked to one or several repeats of LysM domains. LysM domains are found in bacteria and eukaryotes.

LysM domain. The LysM (lysin motif) domain is about 40 residues long. It is found in a variety of enzymes involved in bacterial cell wall degradation. This domain may have a general peptidoglycan binding function. The structure of this domain is known.

Lysin motif.

Stage VI sporulation protein D OS=Bacillus subtilis (strain 168) OX=224308 GN=spoVID PE=1 SV=1