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Identification of the positions of disulfide bonds of chitinase from a marine bacterium, Alteromonas sp. strain O-7. 1995

K Hayashi, and S Sato, and R Takano, and H Tsujibo, and H Orikoshi, and C Imada, and Y Okami, and Y Inamori, and S Hara
Department of Chemistry and Materials Technology, Faculty of Engineering and Design, Kyoto Institute of Technology, Japan.

Extracellular chitinase from marine Alteromonas sp. strain O-7 is unique because of the activation by four major cations contained in sea water, such as Na+, K+, Mg2+, and Ca2+. The positions of S-S bonds of Alteromonas chitinase were identified. Alteromonas chitinase was fragmented by TPCK-trypsin and Staphylococcus aureus V8 protease. The amino acid and sequence analyses of three peptides showed that the positions of disulfide bonds are Cys(94)-Cys(99), Cys(174)-Cys(196), and Cys(386)-Cys(395).

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
D002688 Chitinases Glycoside hydrolases that break down glycosidic bonds in CHITIN. They are important for insect and worm morphogenesis and plant defense against pathogens. Human chitinases may play a role in the etiology of allergies and asthma. Chitinase,Endochitinase
D004220 Disulfides Chemical groups containing the covalent disulfide bonds -S-S-. The sulfur atoms can be bound to inorganic or organic moieties. Disulfide
D006088 Gram-Negative Aerobic Bacteria A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine. Achromatiaceae,Achromatium,Achromobacteriaceae,Gram Negative Aerobic Bacteria
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
D012623 Seawater The salinated water of OCEANS AND SEAS that provides habitat for marine organisms. Sea Water,Sea Waters,Seawaters,Water, Sea,Waters, Sea

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