Display Settings:

Format

Send to:

Choose Destination
    Protein Eng. 1993 Jun;6(4):341-8.

    The sequence and X-ray structure of the trypsin from Fusarium oxysporum.

    Source

    European Molecular Biology Laboratory (EMBL), Hamburg, Germany.

    Abstract

    The trypsin from Fusarium oxysporum is equally homologous to trypsins from Streptomyces griseus, Streptomyces erythraeus and to bovine trypsin. A DFP (diisopropylfluorophosphate) inhibited form of the enzyme has been crystallized from 1.4 M Na2SO4, buffered with citrate at pH 5.0-5.5. The crystals belong to space group P2(1) with cell parameters a = 33.43 A, b = 67.65 A, c = 39.85 A and beta = 107.6 degrees. There is one protein molecule in the asymmetric unit. X-ray diffraction data to a resolution of 1.8 A were collected on film using synchrotron radiation. The structure was solved by molecular replacement using models of bovine and S. griseus trypsins and refined to an R-factor of 0.141. The overall fold is similar to other trypsins, with some insertions and deletions. There is no evidence of the divalent cation binding sites seen in other trypsins. The covalently bound inhibitor molecule is clearly visible.

    PMID:
    8332590
    [PubMed - indexed for MEDLINE]

      Supplemental Content

      Icon for HighWire Press

      Save items

      loading

      Structures reported by this article

      Recent activity

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      Write to the Help Desk