title: Molecular cloning of the structural gene for alkaline elastase YaB, a new subtilisin produced by an alkalophilic Bacillus strain.
abstract: Alkaline elastase YaB is an extracellular serine protease of the alkalophilic Bacillus strain YaB. We cloned the structural gene, ale, and determined the nucleotide sequence. The mature enzyme (268 amino acids) was preceded by a putative signal sequence and a prosequence (27 and 83 amino acids, respectively). The mature enzyme was 55% homologous to subtilisin BPN'. Almost all the positively charged residues are predicted to be on the surface of the molecule, which would facilitate binding to elastin. The P1 substrate site-related sequences differed between alkaline elastase YaB and subtilisin BPN'.
authors.affiliation: Department of Agricultural Chemistry, University of Tokyo, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Kaneko
authors.forename: N
authors.initials: N
authors.lastname: Koyama
authors.forename: Y C
authors.initials: YC
authors.lastname: Tsai
authors.forename: R Y
authors.initials: RY
authors.lastname: Juang
authors.forename: K
authors.initials: K
authors.lastname: Yoda
authors.forename: M
authors.initials: M
authors.lastname: Yamasaki
mesh_terms: D000595:Amino Acid Sequence; D001407:Bacillus / Q000201:enzymology / Q000235:genetics*; D001483:Base Sequence; D003001:Cloning, Molecular; D005796:Genes; D005798:Genes, Bacterial; D005822:Genetic Vectors; D006863:Hydrogen-Ion Concentration; D008969:Molecular Sequence Data; D010957:Plasmids; D012689:Sequence Homology, Nucleic Acid; D013381:Subtilisins / Q000235:genetics*
chemical_list: D013381:Subtilisins; C060795:alkaline elastase YaB