*1.E.23 The Bacillus* Spore Morphogenesis and Germination Holin (BSH) Family** Real et al. (2005) have described a holin in Bacillus subtilis that is involved in spore morphogenesis and germination. The gene encoding this holin is ywcE, and mutants lacking its gene product have spores that exhibit outer coat defects. These spores lack the characteristic striatal pattern, and the outer coat fails to attach to the underlying inner coat. Finally, the mutant spores accumulate reduced amounts of dipicolinic acid. Homologues are found only in Bacillus species.
References:
Real, G., S.M. Pinto, G. Schyns, T. Costa, A.O. Henriques, and C.P. Moran, Jr. (2005). A gene encoding a holin-like protein involved in spore morphogenesis and spore germination in Bacillus subtilis. J. Bacteriol. 187: 6443-6453.
Examples:
TC#	Name	Organismal Type	Example
1.E.23.1.1	*The Bacillus* morphognesis and germination protein; putative holin, YwcE (Real et al., 2005)**	Firmicutes	*YwcE of Bacillus subtilis* (P39603)**

1.E.23.1.2	Uncharacterized protein	Firmicutes	Uncharacterized protein of Bacillus clausii

1.E.23.1.3	Putative holin, YwcE	Firmicute	Putative holin of Bacillus amyloliquefaciens

1.E.23.1.4	Putative holin of 98 aas and 3 TMSs		Putative holin of Pontibacillus halophilus

1.E.23.1.5	Putative holin of 94 aas and 3 TMSs.		Holin of Aneurinibacillus aneurinilyticus

Examples:
TC#	Name	Organismal Type	Example
1.E.23.2.1	Putative holin	Firmicutes	Putative holin of Halobacillus halophilus

1.E.23.2.2	Putative holin of 97 aas and 3 TMSs		Holin of Lentibacillus amyloliquefaciens