Process for the microbiological preparation of a deacylpepsidin

Process for the microbiological preparation of a deacylpepsidin

The deacylpepsidin valylvalyl-4-amino-3-hydroxy-6-methylheptanoylalanyl-4-amino-3-hydroxy -6-methylheptanoic acid of the formula is obtained by microbiological means, starting from the acylpentapeptide N-acylvalylvalyl-4-amino-3-hydroxy-6-methylheptanoylalanyl-4-amino-3-h ydroxy-6-methylheptanoic ac...

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Bibliographische Detailangaben
Hauptverfasser: NORIAKI KUWANA, YOSHIKAZU HASEGAWA, YUKIO NOZU
Format: Patent
Sprache:eng
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:The deacylpepsidin valylvalyl-4-amino-3-hydroxy-6-methylheptanoylalanyl-4-amino-3-hydroxy -6-methylheptanoic acid of the formula is obtained by microbiological means, starting from the acylpentapeptide N-acylvalylvalyl-4-amino-3-hydroxy-6-methylheptanoylalanyl-4-amino-3-h ydroxy-6-methylheptanoic acid of the formula in which R is an acyl group. The compound of the second formula is converted into the product of the first formula by contacting with bacteria of the species Bacillus pumilus or with their acellular culture preparations. The employed bacteria are specifically those of the strain Bacillus pumilus Kawaguchi EF 49-210 (ATCC No. 31132). The deacylpepsidin of the formula (I) is obtained in higher yields and greater purities than in known processes. It has high activity as a pepsin inhibitor.