摘要:
Disclosed herein are methods for generating proteases with altered specificity for the target molecules they cleave. The invention further discloses methods of using these proteases to treat diseases in which the target proteins are involved with. Cleaving certain target proteins at certain substrate sequences with a protease is a method for treating these pathologies.
摘要:
This invention provides a novel membrane-type serine protease (designated MT-SP1) elevated expression of which is associated with cancer. In one embodiment, this invention provides a method obtaining a prognosis or of detecting or staging a cancer in an organism. The method involves providing a biological sample from the organism and detecting the level of a membrane type serine protease 1 (MT-SP1) in the sample, where an elevated level of the membrane-type serine protease, as compared to the level of the protease in a biological sample from a normal healthy organism indicates the presence or stage of the cancer.
摘要:
This invention provides a novel membrane-type serine protease (designated MT-SP1) elevated expression of which is associated with cancer. In one embodiment, this invention provides a method obtaining a prognosis or of detecting or staging a cancer in an organism. The method involves providing a biological sample from the organism and detecting the level of a membrane type serine protease 1 (MT-SP1) in the sample, where an elevated level of the membrane-type serine protease, as compared to the level of the protease in a biological sample from a normal healthy organism indicates the presence or stage of the cancer.
摘要:
Kaposi's Sarcoma Herpesvirus (KSHV) protease and assembly protein sequences are disclosed. Also disclosed are polynucleotides that encode the protease and assembly protein. The invention includes screening and detection methods, as well as KSHV protease inhibitory compositions.
摘要:
A method is presented for the preparation and use of fluorogenic peptide substrates that allows for the configuration of general substrate libraries to rapidly identify the primary and extended specificity of enzymes, such as proteases. The substrates contain a fluorogenic-leaving group, such as 7-amino-4-carbamoylmethyl-coumarin (ACC). Substrates incorporating the ACC leaving group show comparable kinetic profiles as those with the traditionally used 7-amino-4-methyl-coumarin (AMC) leaving group. The bifunctional nature of ACC allows for the efficient production of single substrates and substrate libraries using solid-phase synthesis techniques.
摘要:
A method is presented for the preparation and use of fluorogenic peptide substrates that allows for the configuration of general substrate libraries to rapidly identify the primary and extended specificity of enzymes, such as proteases. The substrates contain a fluorogenic-leaving group, such as 7-amino-4-carbamoylmethyl-coumarin (ACC). Substrates incorporating the ACC leaving group show comparable kinetic profiles as those with the traditionally used 7-amino-4-methyl-coumarin (AMC) leaving group. The bifunctional nature of ACC allows for the efficient production of single substrates and substrate libraries using solid-phase synthesis techniques. The approximately 3-fold increased quantum yield of ACC over AMC permits reduction in enzyme and substrate concentrations. As a consequence, a greater number of substrates can be tolerated in a single assay, thus enabling an increase in the diversity space of the library. Soluble positional protease substrate libraries of 137,180 and 6,859 members, possessing amino acid diversity at the P4-P3-P2-P1 and P4-P3-P2 positions, respectively, were constructed. Employing this screening method the substrate specificities of a diverse array of proteases were profiled, including the serine proteases thrombin, plasmin, factor Xa, uPA, tPA, granzyme B, trypsin, chymotrypsin, human neutrophil elastase, and the cysteine proteases papain and cruzain. The resulting profiles create a pharmacophoric portrayal of the proteases allowing for the design of selective substrates and potent inhibitors.
摘要:
An isolated sequence is provided that encodes crab procollagenase (Seq ID NO 5) that upon cleaving off the 29 amino acid propeptide (Seq ID NO 6) transforms into an active collagenase (Seq ID NO 4). The procollagenase has the MW of about 26.6 kD and the mature collagenase has a MW of 23.5 kD. Procollagenase mutated at positions 201 and 235 is also provided. A storage-stabilized composition providing long-term, shelf-stable protease that can be readily activated when collagenolytic activity is desired is disclosed.
摘要翻译:提供了分离的序列,其编码在分解出29个氨基酸前肽(Seq ID NO 6)后转化成活性胶原酶(Seq ID NO 4)的螃蟹前胶原酶(Seq ID NO 5)。 原胶原酶具有约26.6kD的MW,成熟胶原酶的MW为23.5kD。 还提供在201和235位突变的原胶原酶。 公开了一种储存稳定的组合物,其提供长期的,稳定的蛋白酶,当需要胶原分解活性时可以容易地活化。
摘要:
Non-peptide, protease-binding compounds are described as useful in the detection, labelling, and inhibition of retroviral proteases. Aryl piperidinyl derivatives and other compounds related in structure have been found to be HIV-1 and HIV-2 protease-binding compounds.
摘要:
The disclosure relates to protease-binding agent specific for a protease. The agent may be an antibody capable of specifically binding and inhibiting a protease, such as a P1-Arg-specific protease. The disclosure also provides methods of producing, and compositions comprising the subject agent. Methods and kits related to the protease-binding agent find use in protection against, detection, diagnosing, treating cancer and infections due to pathogens containing active proteases.
摘要:
The present invention provides recombinant vectors comprising polynucleotides encoding defective monomers of HIV (e.g., HIV-1 or HIV-2) protease which are used to interfere with viral maturation. The defective monomers result in the formation of inactive protease heterodimers and thus inhibit the polyprotein processing events that are essential for viral maturation and infectivity.