. 2009 Jul 31;191(19):6012–6019. doi: 10.1128/JB.00604-09

TABLE 3.

SpoVB paralogs in B. subtilis

Protein	Length (amino acids)	Identity/ similarity/alignment^a	Membrane span prediction^b	Operon prediction^c	Expression^c
SpoVB	518		12-14	No	Mother cell, σ^E
YabM	532	26/48/339	12-14	Probable yabMNO	Weak vegetative
YkvU	445	30/52/450	10-12	ykvUV	Mother cell, σ^E
YtgP	544	23/45/421	13-14	No	Vegetative

Values are percent amino acid identity/percent amino acid similarity/total length of the alignment (amino acids) with B. subtilis SpoVB, determined using BlastP.

Predictions of membrane-spanning helices were produced using five different software packages. The ranges of predictions are shown.

Relative expression levels and timing are based on data shown in Fig. 1. Operon structures and ykvUV expression information are from references 9 and 11. A forespore-specific, σ^G-dependent promoter also drives expression of ykvV (15).