Isolation and partial characterization of SSI-like protease inhibitors from Streptomyces. 1992

S Taguchi, and S Kojima, and I Kumagai, and H Ogawara, and K Miura, and H Momose
Department of Biological Science and Technology, Science University of Tokyo, Chiba, Japan.

We attempted to screen a series of Streptomyces subtilisin inhibitor-like (SIL) proteins among several Streptomyces strains by using a highly sensitive assay system established by us. Of six randomly tested strains, four were found to produce SIL inhibitors as their major secreted proteins, suggesting that they might be distributed in a high frequency among this genus. Three inhibitors exhibited inhibition of both subtilisin BPN' and trypsin. Comparison of the amino terminal sequences of these isolated proteins with those of other reported SIL inhibitors revealed that the beta 1- and beta 2-sheets in SSI were highly conserved.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species
D013302 Streptomyces A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.
D013381 Subtilisins A family of SERINE ENDOPEPTIDASES isolated from Bacillus subtilis. EC 3.4.21.- Alcalase,AprA-Subtilisin,Bacillus amyloliquefaciens Serine Protease,Bacillus subtilis Alkaline Proteinase,Carlsberg Subtilisin,Maxatase,Nagarse,Novo Alcalase,Profezim,Protease VII,Subtilisin 72,Subtilisin A,Subtilisin BPN',Subtilisin Carlsberg,Subtilisin DY,Subtilisin E,Subtilisin GX,Subtilisin Novo,Subtilopeptidase A,Alcalase, Novo,AprA Subtilisin,Subtilisin, Carlsberg
D015842 Serine Proteinase Inhibitors Exogenous or endogenous compounds which inhibit SERINE ENDOPEPTIDASES. Serine Endopeptidase Inhibitor,Serine Endopeptidase Inhibitors,Serine Protease Inhibitor,Serine Protease Inhibitors,Serine Proteinase Antagonist,Serine Proteinase Antagonists,Serine Proteinase Inhibitor,Serine Proteinase Inhibitors, Endogenous,Serine Proteinase Inhibitors, Exogenous,Serine Protease Inhibitors, Endogenous,Serine Protease Inhibitors, Exogenous,Antagonist, Serine Proteinase,Endopeptidase Inhibitor, Serine,Inhibitor, Serine Endopeptidase,Inhibitor, Serine Protease,Inhibitor, Serine Proteinase,Protease Inhibitor, Serine,Proteinase Antagonist, Serine,Proteinase Inhibitor, Serine
D017386 Sequence Homology, Amino Acid The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species. Homologous Sequences, Amino Acid,Amino Acid Sequence Homology,Homologs, Amino Acid Sequence,Homologs, Protein Sequence,Homology, Protein Sequence,Protein Sequence Homologs,Protein Sequence Homology,Sequence Homology, Protein,Homolog, Protein Sequence,Homologies, Protein Sequence,Protein Sequence Homolog,Protein Sequence Homologies,Sequence Homolog, Protein,Sequence Homologies, Protein,Sequence Homologs, Protein

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