title: Nucleotide sequence of the sspE genes coding for gamma-type small, acid-soluble spore proteins from the round-spore-forming bacteria Bacillus aminovorans, Sporosarcina halophila and S. ureae.
abstract: The single sspE genes coding for gamma-type small, acid-soluble spore proteins (SASP) of three round-spore-forming bacteria, Bacillus aminovorans, Sporosarcina halophila and S. ureae, have been cloned and sequenced. While the deduced amino acid sequences of these three gamma-type SASP show clear homology to those from six Bacillus species that do not form round spores, there are no residues conserved completely among the 9 sequences known. In addition, the 139 residue B. aminovorans protein is 35 residues larger than any other while the 60 residue S. halophila protein is one of the smallest. These data suggest that the sspE genes have been under little selective pressure in recent evolutionary time.
authors.affiliation: Department of Biochemistry, University of Connecticut Health Center, Farmington 06030, USA.
authors.forename: C A
authors.initials: CA
authors.lastname: Loshon
authors.forename: K E
authors.initials: KE
authors.lastname: Beary
authors.forename: K
authors.initials: K
authors.lastname: Gouveia
authors.forename: E Z
authors.initials: EZ
authors.lastname: Grey
authors.forename: L M
authors.initials: LM
authors.lastname: Santiago-Lara
authors.forename: P
authors.initials: P
authors.lastname: Setlow
mesh_terms: D000595:Amino Acid Sequence; D001407:Bacillus / Q000235:genetics; D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D005798:Genes, Bacterial; D016936:Gram-Positive Endospore-Forming Bacteria / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012091:Repetitive Sequences, Nucleic Acid; D012808:Sigma Factor; D013171:Spores, Bacterial; D014157:Transcription Factors
chemical_list: D001426:Bacterial Proteins; D012808:Sigma Factor; D014157:Transcription Factors; C092468:spoIIR protein, Bacillus subtilis; C030069:spore-specific proteins, Bacillus