摘要:
Disclosed are (1) a mutein of a fibroblast growth factor (FGF), the DNA having introduced therein at least one nucleotide sequence coding for a glycosylation site, (2) a DNA coding for the mutein of (1), (3) a vector containing the DNA of (2), (4) a transformant transformed with the vector of (3), and (5) a process for producing the mutein which comprises cultivating in a culture medium the transformant of a yeast or animal cell transformed with a vector of (3), and producing and accumulating the mutein of (1) in the culture medium, whereby the FGF mutein into which at least one glycosylation site has been introduced is improved in productivity, stability and activities, and advantageously used as medicine.
摘要:
Disclosed are (1) an active human NGF protein having 6 cysteine residues in its molecule, in which the first cysteine residue from the N-terminus is bound to the fourth cysteine residue, the second cysteine residue to the fifth cysteine residue, and the third cysteine residue to the sixth cysteine residue to form disulfide bonds, (2) an animal cell which is transformed with a vector containing a gene coding for a human NGF protein and is cloned, (3) the animal cell described in (2), in which a host is a Chinese hamster CHO cell, and (4) a method for producing a human NGF protein which comprises cultivating the animal cell described in (2) or (3) in a medium. The human NGF proteins having specific disulfide bonds can be advantageously used as reagents or therapeutic drugs, and the cloned animal cells can commercially produce the high pure human NGF proteins in large amounts.
摘要:
A human basic fibroblast growth factor (hbFGF), which is usable for a cure promoter for burns etc., therapeutic agent for thrombosis etc. or a reagent for promoting cell cultivation, can be produced in a large quantity by cultivating a transformant as transformed with a vector including a DNA coding the hbFGF.
摘要:
This invention relates to animal cells transformed with a DNA having a region coding for a human IL-2 protein and, upstream therefrom, at least one promoter and to a method of producing such human IL-2 protein which comprises cultivating said transformants to thereby cause production and accumulation of said protein in the culture and recovering the same.
摘要:
A novel DNA isolate encoding for a promoter region of human nerve growth factor-2, a recombinant vector containing said DNA, and a transformant carrying said recombinant vector are disclosed. The promoter of the present invention is useful as a means for analyzing an expression control mechanism of a nerve specific protein and can be used as a promoter which is incorporated into vectors used in the preparation of disease model animals, the treatment of diseases of organisms and the establishment of drug screening systems.
摘要:
A mutein of basic fibroblast growth factors (bFGF) possesses fibroblast growth promoting activity, growth stimulating activity of capillary endothelial cells and angiogenic activity, has high stability and is low toxicity. And therefore, the present mutein is advantageously used as a healing accelerator for burns etc., a therapeutic drug for thrombosis etc., and a cell cultivation promoter.
摘要:
A human basic fibroblast growth factor (hbFGF), which is usable for a cure promoter for burns etc., therapeutic agent for thrombosis etc. or a reagent for promoting cell cultivation, can be produced in a large quantity by cultivating a transformant as transformed with a vector including a DNA coding the hbFGF.
摘要:
Disclosed are (1) a polypeptide (I) including the following amino acid sequence (II) in a molecule thereof: TyrAlaGluHisLysSerHisArgGlyGluTyrSerValCys AspSerGluSerLeuTrpValThrAspLysSerSerAlaIle AspIleArgGlyHisGlnValThrValLeuGlyGluIleLys ThrGlyAsnSerProValLysGlnTyrPheTyrGluThrArg CysLysGluAlaArgProValLysAsnGlyCysArgGlyIle AspAspLysHisTrpAsnSerGlnCysLysThrSerGlnThr TyrValArgAlaLeuThrSerGluAsnAsnLysLeuValGly TrpArgTrpIleArgIleAspThrSerCysValCysAlaLeu SerArgLysIleGlyArg (II) (2) a DNA sequence coding for the polypeptide described in (1), (3) a vector including the DNA described in (2), (4) a transformant transformed by the vector described in (3), and (5) a process for producing the polypeptide (I) which comprises cultivating the transformant described in (4) in a culture medium to produce and accumulate the polypeptide described in (1) in a culture. The polypeptide is useful as a reagent for studies relating to the differentiation, growth and survival of animal cells, and may also be useful as a drug.