摘要:
The invention provides polymeric H-NOX proteins for the delivery of oxygen with longer circulation half-lives compared to monomeric H-NOX proteins. Polymeric H-NOX proteins extravasate into and preferentially accumulate in tumor tissue for sustained delivery of oxygen. The invention also provides the use of H-NOX proteins as radiosensitizers for the treatment of brain cancers.
摘要:
A space-bred seawater Spirulina H11 strain. The strain exhibits high growth rate, capacity of simultaneously accumulating high contents of phycocyanin, Spirulina polysaccharides and β-carotene, and excellent adaptability to outdoor environment, thus can be used to produce high-quality Spirulina powders, phycocyanin, Spirulina polysaccharides, and β-carotene-rich Spirulina oil.
摘要:
The present disclosure provides nanostructures (e.g., monolayer or bilayer nanostructures) comprising porphyrins with cobalt chelated thereto such that the cobalt metal resides within monolayer or bilayer in the porphyrin macrocycle. The nanostructures can have presentation molecules with a histidine tag attached thereto, such that at least a part of the his-tag is within the monolayer or bilayer and coordinated to the cobalt metal core and the presentation molecules are exposed to the outside of the nanostructures. The nanostructures can further comprise a cargo. The nanostructures can be used to deliver the cargo to an individual.
摘要:
Described herein is a new antidote for the rapid elimination of carbon monoxide from hemoglobin, including brain, heart, and red cell hemoglobin. The disclosed therapy involves the use of modified human globins, particularly neuroglobins modified at residue 64 and cytoglobins modified at residue 81, which bind carbon monoxide with extremely high affinity. The monomeric mutant globins are infused into blood, where they rapidly and irreversibly sequester carbon monoxide, and thus limit toxic effects of carbon monoxide on cellular respiration and oxygen transport and utilization.
摘要:
The invention relates to hemin derivatives of general formula (I), preparing and use thereof as antibacterial and/or antiviral agents, including, as a component in a pharmaceutical compositions. Advantages of the antibacterial and antiviral agents based on the hemin derivatives are in their biocompatibility, biodegradability, a high efficacy against resistant bacteria and widespread viruses which are dangerous to humans, and the lack of toxicity.
摘要:
The present disclosure provides photoactive polypeptides. A subject photoactive polypeptide is useful in a variety of applications, which are also provided.
摘要:
A mutant, human ferroportin-1 protein and encoding nucleic acid are provided. The mutant ferroportin-1 protein has a deletion of valine 162 compared to wild-type ferroportin-1 protein. The mutant protein and nucleic acid may be useful in detection of a predisposition to iron overload disorders such as haemochromatosis. Furthermore, it is proposed that the valine 162 deletion is a loss-of-function mutation that may underlie iron overload disorders such as haemochromatosis. Therefore, methods of both diagnosis and treatment of haemochromatosis are provided.
摘要:
Hemin-like porphyrins can be prepared from chlorophylls which may be used as intermediates to form functionally active hemoproteins. The porphyrins can be reacted with apoproteins in vitro or added to a cell culture and combined intracellularly with apoproteins to form functionally active hemoproteins.
摘要:
The transfer of a textile dye from a dyed fabric to another fabric during washing or rinsing is inhibited by adding an enzyme exhibiting peroxidase activity or an enzyme exhibiting a suitable oxidase activity to the wash liquor in which said fabrics are washed and/or rinsed. Peroxidase is produced extracellularly by some strains of Bacillus pumilus. The novel peroxidase preparation from B. pumilus is a microperoxidase, 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:
The present invention provides cobalamin acid hydrazides of the general formula:B--CO--NH--NH--R--CO--NH--NH).sub.x H (I)wherein B is a residue formed from a cobalamin by the splitting off of a --CONH.sub.2 group, R is a spacer and x is 0 or 1, as well as a process for the preparation thereof.The present invention also provides cobalamin conjugates of the general formula:B--d--CO--NH--NH--R--CO--NH).sub.x N.dbd.GP (II)in which B, R and x have the above-given meanings and d signifies the position of --CO--NH--, as well as a process for the preparation thereof. These cobalamin conjugates are very suitable for use in immunoassays, especially for the determination of cyanocobalamin.