A NovelL-Amino Acid Ligase fromBacillus subtilisNBRC3134 Catalyzed Oligopeptide Synthesis
摘要:
l-氨基酸连接酶以一种 ATP 依赖性方式催化未受保护的 l-氨基酸合成二肽。我们从生产根肿灵多肽抗生素的枯草芽孢杆菌 NBRC3134 中纯化出一种新的 l-氨基酸连接酶 RizA,它能合成 N 端为 Arg 的二肽。有研究认为,RizA 可能参与了根皮素的生物合成。在本研究中,我们对 rizA 周围的未知区域进行了序列分析,新发现了一个编码具有 ATP 抓取基序的蛋白质的基因,该基因位于 rizA 的上游。该基因被命名为 rizB,并制备了其重组蛋白。重组 RizB 以 ATP 依赖性方式合成由 2 至 5 个氨基酸组成的支链 l-氨基酸和 l-蛋氨酸的同源异构体。RizB 还能合成各种杂肽。进一步研究表明,RizB 可能会在 N 端延长肽链。这是首次报道一种催化寡肽合成的 l-氨基酸连接酶。
[EN] PROSTATE SPECIFIC MEMBRANE ANTIGEN (PSMA) LIGANDS COMPRISING AN AMYLASE CLEAVABLE LINKER<br/>[FR] LIGANDS DE L'ANTIGÈNE MEMBRANAIRE SPÉCIFIQUE DE LA PROSTATE (PSMA) COMPORTANT UN LIEUR CLIVABLE PAR L'AMYLASE
申请人:DEUTSCHES KREBSFORSCH
公开号:WO2020165409A1
公开(公告)日:2020-08-20
In particular, the present invention relates to a PSMA binding ligand comprising an oligosaccharide building block which comprises a bond being cleavable by alpha-amylase. Typically, this PSMA binding ligand further comprises a PSMA binding motif Q and a chelator residue A, wherein the PSMA binding motif Q and the chelator residue A are preferably linked via at least one linker A-LAQ-Q comprising the oligosaccharide building block, the PSMA binding ligand thus preferably having the structure (I) or a pharmaceutically acceptable salt or solvate thereof
The present invention is directed to novel amino acid prostaglandin salts and methods of making and using them.
本发明涉及新型氨基酸前列腺素盐及其制备和使用方法。
Mutated 6-phosphogluconate dehydrogenase
申请人:Ikeda Masato
公开号:US20050079586A1
公开(公告)日:2005-04-14
The present invention relates to a polypeptide having a modified amino acid sequence of 6-phosphogluconate dehydrogenase (hereinafter abbreviated as GND) derived from a microorganism belonging to the genus
Corynebacterium
, said modification being substitution of the amino acid residue(s) at the position(s) corresponding to the 158th and/or the 361st amino acid(s) of the amino acid sequence shown in SEQ ID NO: 1, and having GND activity; DNA encoding the polypeptide; a recombinant DNA comprising the DNA; a transformant carrying the recombinant DNA; a microorganism carrying the DNA on the chromosome; and a process for producing a useful substance which comprises culturing the transformant or the microorganism in a medium.
本发明涉及一种多肽,其具有来自属于科林氏杆菌属的微生物的6-磷酸葡糖酸脱氢酶(以下简称GND)的修改氨基酸序列,该修改是替换与SEQ ID NO: 1中显示的氨基酸序列的第158和/或第361个氨基酸位置相对应的氨基酸残基,并具有GND活性;编码该多肽的DNA;包含该DNA的重组DNA;携带重组DNA的转化体;携带DNA的染色体的微生物;以及生产有用物质的方法,其中包括在培养基中培养转化体或微生物。
Polynucleotides encoding insect glutaminyl cyclase and uses thereof
申请人:——
公开号:US20030013177A1
公开(公告)日:2003-01-16
The invention provides polynucleotides encoding insect glutaminyl cyclase, as well as polypeptides encoded thereby. The invention further provides host cells comprising expression vectors comprising polynucleotides of the invention. Isolated polypeptides and host cells of the invention are useful in methods of screening for agents that reduce glutaminyl cyclase activity. Such agents are useful as pesticides.
L-arginine producing escherichia coli and method of producing L-arginine
申请人:AJINOMOTO CO., INC.
公开号:US20020034793A1
公开(公告)日:2002-03-21
Arginine can be efficiently produced by cultivating
Escherichia coli
which has an ability to produce arginine and an ability to utilize acetate in a culture medium to produce and accumulate arginine in the medium, and collecting arginine from the medium.