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    • 103. 发明公开
    • ENDOTHELIN-ANTAGONIZING PEPTIDE.
    • ENDOTHELINANTAGONISIERENDES PEPTID。
    • EP0679658A4
    • 1997-06-04
    • EP95904339
    • 1994-06-23
    • KYOWA HAKKO KOGYO KK
    • SHIBATA KENJISUZAWA TOSHIYUKIYAMASAKI MOTOOTANAKA TAKEOTSUKUDA EIJIYAMADA KOJIOHNO TETSUJI
    • A61K38/00C07K7/06C07K14/575C07K7/08
    • C07K7/06A61K38/00C07K14/57536
    • An endothelin-antagonizing peptide compound represented by general formula (I) and a pharmacologically acceptable salt thereof: R -R -R -R -R -R -R -R -R -R -R -R -Phe-R -R -R -R -R -Ile-R -Z wherein R is X -Gly, X (a), X -SCH2CO or hydrogen; R is Asn, Asp, Phe, Tyr, Ser or a single bond; R is Trp, Ile, Pro, Ala or a single bond; R is His, Lys, Gly, Trp, Ala or a single bond; R is Gly, Thr, Trp, Val or a single bond; R is Gly, Thr, Asn, Tyr, Asp or a single bond; R is Ala, Ser, Asn, Asp, Tyr, Phe or a single bond; R is Pro, Ala, Arg or a single bond; R is (b), (c) or a single bond; R is Trp or Ala; R is Val, Pro or a single bond; R is Tyr or a single bond; R is Ala, MeAla, Ser or Cys; R is His or Trp; R is Leu or Nva; R is Asp, Thr, Asn, Ser, Gly or Glu; R is Ile, Leu, Cha, Abu, Thi, Met, Tyr, MeLeu, MeIle, Phg or Nle; R is Trp, Phe or Tyr; and Z is hydroxy, lower alkoxy or amino.
    • 通式(I)所示的内皮缩血管肽拮抗肽化合物及其药理学上可接受的盐:R 1 -R 2 -R 3 -R 4 -R 5 -R 6 - [R <7> -R <8> -R <9> -R <10> -R <11> -R <12> -Phe-R <14> -R <15> -R <16> -R <17 R 18 -Ile-R 20 -Z其中R 1是X 1 -Gly,X 3(a),X 2 -SCH 2 CO或氢; R 2是Asn,Asp,Phe,Tyr,Ser或单键; R 3是Trp,Ile,Pro,Ala或单键; R 4是His,Lys,Gly,Trp,Ala或单键; R 5是Gly,Thr,Trp,Val或单键; R 6是Gly,Thr,Asn,Tyr,Asp或单键; R 7是Ala,Ser,Asn,Asp,Tyr,Phe或单键; R 8是Pro,Ala,Arg或单键; R 9是(b),(c)或单键; R 10是Trp或Ala; R 11是Val,Pro或单键; R 12是Tyr或单键; R 14是Ala,MeAla,Ser或Cys; R 15是His或Trp; R 16是Leu或Nva; R 17是Asp,Thr,Asn,Ser,Gly或Glu; R 18是Ile,Leu,Cha,Abu,Thi,Met,Tyr,MeLeu,MeIle,Phg或Nle; R 20是Trp,Phe或Tyr; Z是羟基,低级烷氧基或氨基。
    • 109. 发明公开
    • Process to purify the big-endothelin protein
    • Verfahren zur Reinigung des Big-Endothelin Proteins。
    • EP0587541A1
    • 1994-03-16
    • EP93830361.7
    • 1993-09-03
    • TECNOGEN S.C.P.A.
    • Fassina, Giorgio, c/o TECNOGEN ScpAMerli, Silvia, c/o TECNOGEN ScpA
    • C07K3/12C07K3/20C12N15/10
    • C07K14/57536
    • A process to purify Big-Endothelin (Big-ET) from crude extracts comprising the steps as follows:

      to express Big-ET protein in host cells using genetic engineering methods;
      to lyse said host cells and to treat them with a proteolytic enzyme in order to obtain a proteolysed extract;
      to load said proteolysed extract to an affinity chromatography column, prepared by immobilizing a Big-ET specific ligand, said ligand comprising Big-ET hydropathically complementary peptides, consisting of D configuration amino acids, said column equilibrated with a suitable saline buffer;
      to wash out the not specifically bonded material from said column by a suitable washing buffer;
      to elute the specifically retained material into said column by a suitable elution buffer.
    • 从粗提取物中纯化大内皮素(Big-ET)的方法,包括以下步骤:使用基因工程方法在宿主细胞中表达大ET蛋白; 裂解所述宿主细胞并用蛋白水解酶处理以获得蛋白水解的提取物; 将所述蛋白水解的提取物加载到通过固定Big-ET特异性配体制备的亲和层析柱,所述配体包含由D构型氨基酸组成的Big-ET亲水互补肽,所述柱用合适的盐水缓冲液平衡; 通过合适的洗涤缓冲液从所述柱中洗去未特异结合的材料; 通过合适的洗脱缓冲液将特定保留的物质洗脱到所述柱中。