摘要:
The present application relates to a recombinant protein comprising a spacer peptide and a recombinant Ganoderma lucidum immunomodulatory protein mutant (rLZ-8 mutant), wherein an amino acid sequence of the rLZ-8 mutant comprises at least one amino acid mutation as compared with an amino acid sequence as shown in SEQ ID NO: 10. The present application further relates to use of the recombinant protein for treating diseases.
摘要:
An object of the present invention is to obtain a biotinylated nucleic acid efficiently, by enhancing dissociation efficiency of biotin in the biotinylated nucleic acid and tamavidin 2 in the tamavidin 2-immobilized insoluble carrier, and the present invention relates to "A method for separating a biotinylated nucleic acid, comprising the following steps: (1) a step for contacting a sample containing a biotinylated nucleic acid wherein the biotin is bound to the nucleic acid with a insoluble carrier on which tamavidin is immobilized (a tamavidin-immobilized insoluble carrier) to form a complex of the biotinylated nucleic acid and the tamavidin-immobilized insoluble carrier (step A-1), (2) a step for separating the biotinylated nucleic acid from the complex obtained in the step A-1, in a solution having pH of 7.8 to 9.5, and in the presence of free biotin (step A-2), a method for separating the biotinylated nucleic acid to which the nucleic acid-binding protein is bound, a method for separating the nucleic acid-binding protein, and a kit for separating the nucleic acid.
摘要:
The present invention concerns lectins isolated from the fruiting body of a novel Hericium erinaceum (deposit number: KCTC 12499BP) NEU-1 L strain which bind specifically to sialic acid. The invention further pertains to uses of such lectinsn abd to processes for their preparation thereby. The lectin of the present invention can be useful as an active ingredient of a composition or a kit for measuring or detecting glycoproteins, glycopeptides, glycolipids, sugar precursors or oligosaccharides containing sialic acid moieties, or further for measuring or detecting cell lines, bacteria and viruses containing sialoglycoconjugates.
摘要:
An object of the present invention is to obtain a biotinylated nucleic acid efficiently, by enhancing dissociation efficiency of biotin in the biotinylated nucleic acid and tamavidin 2 in the tamavidin 2-immobilized insoluble carrier, and the present invention relates to "A method for separating a biotinylated nucleic acid, comprising the following steps: (1) a step for contacting a sample containing a biotinylated nucleic acid wherein the biotin is bound to the nucleic acid with a insoluble carrier on which tamavidin is immobilized (a tamavidin-immobilized insoluble carrier) to form a complex of the biotinylated nucleic acid and the tamavidin-immobilized insoluble carrier (step A-1), (2) a step for separating the biotinylated nucleic acid from the complex obtained in the step A-1, in a solution having pH of 7.8 to 9.5, and in the presence of free biotin (step A-2), a method for separating the biotinylated nucleic acid to which the nucleic acid-binding protein is bound, a method for separating the nucleic acid-binding protein, and a kit for separating the nucleic acid.
摘要:
The present invention concerns lectins isolated from the fruiting body of a novel Hericium erinaceum (deposit number: KCTC 12499BP) NEU-1 L strain which bind specifically to sialic acid. The invention further pertains to uses of such lectinsn abd to processes for their preparation thereby. The lectin of the present invention can be useful as an active ingredient of a composition or a kit for measuring or detecting glycoproteins, glycopeptides, glycolipids, sugar precursors or oligosaccharides containing sialic acid moieties, or further for measuring or detecting cell lines, bacteria and viruses containing sialoglycoconjugates.
摘要:
The present invention provides the Agrocybe aegerita lectin AAL-2, its encoding gene, the preparation methods and its uses. The invention uses the affinity chromatography separated the lectin protein AAL-2 from the Agrocybe aegerita total protein, of which the amino acid sequence is set forth in SEQ ID NO: 2 and the nucleotide sequence encoding the said protein is set forth in SEQ ID NO: 1. Cell tests indicate that the Agrocybe aegerita lectin AAL-2 isolated in the invention has excellent inhibition activity to the tumor cells, which can induce apoptosis of hepatoma cells, significantly. Animal experiments show that AAL-2 has a better therapeutic effect on tumor. The glycochip technology test results show that the AAL-2 preferentially binds to the carbohydrate or glycoproteins with the N-Acetylglucosamine as the terminal, which can be used as a reagent for testing the N-Acetylglucosamine relevant diseases or the N-Acetylglucosamine relevant carbohydrate structure.
摘要翻译:本发明提供了Agrocybe aegerita凝集素AAL-2,其编码基因,其制备方法及其用途。 本发明使用从Agrocybe aegerita总蛋白中分离凝集素蛋白AAL-2的亲和层析,其氨基酸序列如SEQ ID NO:2所示,编码所述蛋白的核苷酸序列列于SEQ ID NO 1.细胞试验表明,本发明中分离出的Agrocybe aegerita凝集素AAL-2对肿瘤细胞具有优异的抑制活性,可显着诱导肝癌细胞凋亡。 动物实验表明,AAL-2对肿瘤有较好的治疗作用。 糖芯片技术测试结果表明,AAL-2以N-乙酰基葡萄糖胺为末端优先与碳水化合物或糖蛋白结合,可用作测试N-乙酰葡糖胺相关疾病或N-乙酰葡糖胺相关碳水化合物结构的试剂 。
摘要:
The present invention provides a modified biotin-binding protein comprising an amino acid sequence represented by SEQ ID NO: 2 or its modified sequence and having a biotin-binding activity and replacement selected from the group consisting of: 1) replacement of the 36th serine residue of SEQ ID NO: 2 with an amino acid residue that does not form a hydrogen bond; 2) replacement of the 80th tryptophan residue of SEQ ID NO: 2 with a hydrophilic amino acid residue; 3) replacement of the 116th aspartic acid residue of SEQ ID NO: 2 with an amino acid residue that does not form a hydrogen bond; 4) replacement of the 46th proline residue of SEQ ID NO: 2 with a threonine, serine, or tyrosine residue and replacement of the 78th threonine residue of SEQ ID NO: 2 with an amino acid residue that does not form a hydrogen bond; 5) replacement of the 46th proline residue of SEQ ID NO: 2 with a threonine, serine, or tyrosine residue and replacement of the 116th aspartic acid residue of SEQ ID NO: 2 with an amino acid that does not form a hydrogen bond; and 6) replacement of the 46th proline residue of SEQ ID NO: 2 with a threonine, serine, or tyrosine residue, replacement of the 78th threonine residue of SEQ ID NO: 2 with an amino acid residue that does not form a hydrogen bond, and replacement of the 116th aspartic acid residue of SEQ ID NO: 2 with an amino acid that does not form a hydrogen bond.
摘要翻译:本发明提供一种修饰的生物素结合蛋白,其包含由SEQ ID NO:2或其修饰序列表示的氨基酸序列,并具有生物素结合活性和选自以下的置换:1)替换第36位丝氨酸残基 具有不形成氢键的氨基酸残基的SEQ ID NO:2; 2)用亲水氨基酸残基置换SEQ ID NO:2的第80个色氨酸残基; 3)用不形成氢键的氨基酸残基替换SEQ ID NO:2的第116位天冬氨酸残基; 4)用苏氨酸,丝氨酸或酪氨酸残基替换SEQ ID NO:2的第46个脯氨酸残基,并用不形成氢键的氨基酸残基替换SEQ ID NO:2的第78个苏氨酸残基; 5)用苏氨酸,丝氨酸或酪氨酸残基替换SEQ ID NO:2的第46个脯氨酸残基,用不形成氢键的氨基酸替换SEQ ID NO:2的第116位天冬氨酸残基; 和6)用苏氨酸,丝氨酸或酪氨酸残基替换SEQ ID NO:2的第46个脯氨酸残基,用不形成氢键的氨基酸残基替代SEQ ID NO:2的第78个苏氨酸残基, 并用不形成氢键的氨基酸替代SEQ ID NO:2的第116位天冬氨酸残基。
摘要:
Process for extracting hydrophobin from a solution wherein carrageenan is added to the solution and the pH of the solution is brought below 3.5, and the ionic strength of the solution is below 0.5.