专利号:US-7067698-B2 优先权日:2001-08-03 标 题 :Bi-directional synthesis of oligoguanidine transport agents 发明人:WENDER PAUL A; VANDEUSEN CHRISTOPHER L; PATTABIRAMAN KANAKA; PELKEY ERIN T; JESSOP THEODORE C 权利人:UNIV LELAND STANFORD JUNIOR 摘要:Synthesis routes that can be adapted to large scale synthesis of oligoguanidine compounds such as oligoarginine compounds are described which use a perguanidinylation step to convert a group of ω-amino groups to the corresponding guanidinyl groups. These compounds find utility as transport agents. Modified oligoguanidine compounds are also described.
专利号:US-2004053274-A1 优先权日:2002-09-04 标 题 :Gene cluster of vicenistatin biosynthesis, a vicenisamine glycosyltransferase polypeptide, and a gene encoding the polypeptide 发明人:KAKINUMA KATSUMI 权利人:TOKYO INST TECH 摘要:To achieve enzymatic production of vicenistatin, a valuable compound, this invention provides enzymes involved in biosynthesis of vicenistatin and genes encoding the enzymes. This invention provides base sequence of the vin cluster which encodes enzyme complex responsible for biosynthesis of vicenistatin. This invention further provides a glycosyltransferase (VinC enzyme), which catalyzes production of vicenistatin using dTDP-vicenisamine as a substrate. Moreover, this invention provides a gene (vinC gene) encoding the enzyme. The VinC enzyme is useful for enzymatic synthesis of valuable compound vicenistatin. Furthermore, it is suggested that use of the VinC enzyme will enable development of novel polyketide glycosides.
专利号:US-2003157592-A1 优先权日:1999-12-16 标题:Moss genes from physcomitrella patens encoding proteins involved in the synthesis of tocopherols and carotenoids 发明人:LERCHL JENS; RENZ ANDREAS; EHRHARDT THOMAS; REINDL ANDREAS; CIRPUS PETRA; BISCHOFF FRIEDRICH; FRANK MARKUS; FREUND ANNETTE; DUWENIG ELKE; SCHMIDT RALF-MICHAEL; RESKI RALF; BADUR RALF 摘要:Isolated nucleic acid molecules, designated TCMRP nucleic acid molecules, which encode novel TCMRPs from e.g. Phycomitrella patens are described. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing TCMRP nucleic acid molecules, and host cells into which the expression vectors have been introduced. The invention still further provides isolated TCMRPs, mutated TCMRPs, fusion proteins, antigenic peptides and methods for the improvement of production of a desired compound from transformed cells, organisms or plants based on genetic engineering of TCMRP genes in these organisms.
专利号:US-6004787-A 优先权日:1991-01-17 标题:Method of directing biosynthesis of specific polyketides 发明人:KATZ LEONARD; DONADIO STEFANO; MCALPINE JAMES B 权利人:ABBOTT LAB 摘要:A method to produce novel polyketide structures by designing and introducing specified changes in the DNA governing the synthesis of the polyketide is disclosed. The biosynthesis of specific polyketide analogs is accomplished by genetic manipulation of a polyketide-producing microorganism by isolating a polyketide biosynthetic gene-containing DNA sequence, identifying enzymatic activities associated within the DNA sequence, introducing one or more specified changes into the DNA sequence which codes for one of the enzymatic activities which results in an altered DNA sequence, introducing the altered DNA sequence into the polyketide-producing microorganism to replace the original sequence, growing a culture of the altered microorganism under conditions suitable for the formation of the specific polyketide analog, and isolating the specific polyketide analog from the culture. The method is most useful when the segment of the chromosome modified is involved in an enzymatic activity associated with polyketide biosynthesis, particularly for manipulating polyketide synthase genes from Saccarharopolyspora or Streptomyces.
专利号:US-6664368-B1 优先权日:1997-11-27 标题:Inhibition of nuclear import by backbone cyclic peptide analogs 发明人:FRIEDLER ASSAF; LOYTER ABRAHAM; GILON CHAIM; WOLF AMNON 权利人:YISSUM RES DEV CO; PEPTOR LTD 摘要:The design and the synthesis of backbone cyclic peptide analogs which functionally mimic the nuclear localization signal (NLS) region of macromolecules is disclosed. The principles of the invention are exemplified for the NLS sequences of the human immunodeficiency virus type 1 proteins MA, Vpr, Tat and NLS-like sequences of HIV-1 protein Vif. We disclose the discovery of a novel, highly potent backbone cyclic peptide, designated BCvir, which inhibits nuclear import with an IC50 value of 35 nM. This inhibitory potency is to be compared to 12 muM exhibited by the linear parent HIV-1 MA NLS peptide. BCvir also reduced HIV-1 production by 75% in infected non-dividing cultured human T-cells and was relatively resistant to tryptic digestion. These properties render backbone cyclic peptide analogs of NLS or NLS-like sequences as candidates for novel drugs based on blocking nuclear import of viral genomes.
专利号:US-2002064816-A1 优先权日:1999-12-16 标 题 :Moss genes from physcomitrella patens encoding proteins involved in the synthesis of carbohydrates 发明人:LERCHL JENS; RENZ ANDREAS; EHRHARDT THOMAS; REINDL ANDREAS; CIRPUS PETRA; BISCHOFF FRIEDRICH; FRANK MARKUS; FREUND ANNETTE; DUWENIG ELKE; SCHMIDT RALF-MICHAEL; RESKI RALF 摘要:Isolated nucleic acid molecules, designated CMRP nucleic acid molecules, which encode novel CMRPs from Physcomitrella patens are described. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing CMRP nucleic acid molecules, and host cells and organisms into which the expression vectors have been introduced. The invention still further provides isolated CMRPs, mutated CMRPs, fusion proteins, antigenic peptides and methods for the improvement of production of a desired compound from transformed cells based on genetic engineering of CMRP genes in this organism.
参考文献:10.1016/j.bmc.2016.05.008 摘要:Na H, Li X, Zou C, Wang C, Wang C, Liu K. Triterpene sapogenin-polyarginine conjugates exhibit promising antibacterial activity against Gram-positive strains. Bioorg Med Chem. 2016 Jul 01;24(13):2999–3005. doi: 10.1016/j.bmc.2016.05.008.