Fujisawa Pharmaceutical Company, Ltd.

Yoshinori Ishii

Mineo Niwa

Yoshimasa Saito

Masaru Yoshida

Ikuo Ueda

Hiromi Suzuki

Hiromi Hayashi

Masakazu Kobayashi

Hitoshi Sasaki

Hisashi Yamada

Yuji Noguchi

Tadashi Hitaguchi

Takao Fujimura

DNA fragments which contain a sequence of DNA which encodes a protective peptide-fused &agr;-hANP in which the protective peptide has a C-terminus lysine residue which is directly fused to the N-terminus of the &agr;-hANP, vectors which contain such a DNA sequence, and microorganisms transformed which such a vector are useful for the production of &agr;-hANP.

Process for the production of &agr;-human atrial natriuretic polypeptide

A novel L-sorbose dehydrogenase (SDH) and a novel L-sorbosone dehydrogenase both derived from Gluconobacter oxydans T-100, a DNA which encodes the SDH and/or SNDH, an expression vector which contains the DNA, a host cell transformed by the expression vector and a process for producing the SDH and/or SNDH, which comprises culturing the host cell in a medium and recovering the SDH and/or SNDH from the resulting culture. The SDH and SNDH of the present invention are useful enzymes having preferable properties for the production of 2-keto-L-gulonic acid, as well as L-ascorbic acid. According to the production method of the present invention, the SDH and SNDH having such preferable properties can be produced in large amounts by genetic engineering.

L-sorbose dehydrogenase and novel L-sorbosone dehydrogenase obtained from gluconobacter oxydans T-100

An expression vector containing both a DNA encoding an L-sorbose dehydrogenase and a DNA encoding an L-sorbosone dehydrogenase; a transformant having an ability to produce 2-keto-L-gulonic acid (hereinafter 2KLGA) at high yields from D-sorbitol, which is prepared by transforming, with said expression vector, a microorganism capable of producing L-sorbose at high yields from D-sorbitol, which has no or low 2KLGA-decomposing activity or a host microorganism having, in addition to the above-mentioned properties, no or low L-idonic acid-producing activity; and a process for producing 2KLGA, which comprises culturing said transformant in a medium containing D-sorbitol. According to the present invention, 2KLGA useful for the production of L-ascorbic acid can be produced with ease and in larger amounts by a single operation of culture.

Method for producing 2-keto-L-gulonic acid

A novel L-sorbose dehydrogenase (SDH) and a novel L-sorbosone dehydrogenase (SNDH) both derived from Gluconobacter oxydans T-100, a DNA which encodes the SDH and/or SNDH, an expression vector which contains the DNA, a host cell transformed by the expression vector and a process for producing the SDH and/or SNDH, which comprises culturing the host cell in a medium and recovering the SDH and/or SNDH from the resulting culture. The SDH and SNDH of the present invention are useful enzymes having preferable properties for the production of 2-keto-L-gulonic acid, as well as L-ascorbic acid. According to the production method of the present invention, the SDH and SNDH having such preferable properties can be produced in large amounts by genetic engineering.

L-sorbose dehydrogenase and novel L-sorbosone dehydrogenase obtained

Cephalosporin C acylase

Two-cistronic Met-IGF-I expression vector, in which the first cistron encodes a protective peptide with a molecular weight of about 500-50,000 and the second cistron encodes IGF-I, was provided. Also provided is a process for preparing Met-IGF-I, which comprises transforming E. coli with said vector and growing the resultant transformant, followed by the lysis of the cell culture and isolation of Met-IGF-I.

Expression vector for insulin-like growth factor I and method of

The present invention concerns a mutant cephalosporin C acylase derived from a precursor of the formula:

The cysteine-containing polypeptide is oxidized with hydrogen peroxide to produce the biologically active polypeptide having the intramolecular disulfide bridge.

Growing community of inventors

Kobe, Japan

Yoshinori Ishii