摘要:
Peroxidase is produced extracellularly by some strains of Bacillus pumilus. The novel peroxidase preparation from B. pumilus is a microperoxidase preparation, i.e. it contains hemopeptide as an active component. The preparation has improved stability at high temperature, at high pH and at high concentrations of hydrogen peroxide. It can be produced without undesired catalase activity.
摘要:
This invention relates to a fluorescent mono, di- or polyamide of an aminodicarboxylic acid and a tetrapyrrole containing at least three carboxy groups of the structure:
wherein Z is the amino acid residue and X is the tetrapyrrole residue and «n» an integer from 1 to 4 inclusive. Disclosed is also a process for the preparation of the new tetrapyrrole compounds. The new compounds are active and can be used in the preparation of pharmaceutical compositions for the treatment of tumors and cancerous tissues in the human or animal body.
摘要:
Hemiron-enriched amino acid preparation consisting of aggregates of hemprotein fragments with hem bonded to histidin groups present in the fragment and a method for preparing this amino acid preparation from hemproteins, especially hemoglobin, wherein the hemprotein in a manner known per se at first is hemolyzed and denaturated and subsequently split with the aid of proteolytic enzymes to the formation of one hemiron-enriched and one fraction which does not contain hemiron and separation of these fractions from each other. The amino acid preparation is suitable for iron enrichment of for instance foodstuffs and for use in pharmaceutical iron preparations.
摘要:
The present invention relates to compositions comprising: a polypeptide, wherein at least a portion of the polypeptide has a coiled coil structure; and a chelate comprising a chelating agent and a metal ion; and wherein the chelate is bound to at least one amino acid of the polypeptide. In a preferred embodiment the polypeptide is a silk fibroin, wherein at least a portion of said silk fibroin has a coiled coil structure.
摘要:
The present invention relates to compositions comprising: a polypeptide, wherein at least a portion of the polypeptide has a coiled coil structure; and a chelate comprising a chelating agent and a metal ion; and wherein the chelate is bound to at least one amino acid of the polypeptide. In a preferred embodiment the polypeptide is a silk fibroin, wherein at least a portion of said silk fibroin has a coiled coil structure.
摘要:
The present invention provides selective modification of polypetide sequences with electron transfer moieties. The resulting polypeptide assemblies represent a novel class of electron transfer complexes that are capable of transferring electrons over very long distances at fast rates. These complexes possess unique structural features which enable the production of bioconductors and photoactive probes.
摘要:
A protein polymer having a larger molecular weight is provided by regularly arranging a protein having a large molecular weight. The protein polymer having a large molecular weight can be obtained using a protein monomer represented by formula (I) or a salt thereof
wherein R 1 , R 2 , R 3 , R 4 , Y, and X are as defined in the specification.