The three-dimensional structure of trp repressor

Richard W. Schevitz, Zdzislaw Otwinowski, Andrzej Joachimiak, Catherine L. Lawson, Paul B. Sigler

Research output: Contribution to journalArticlepeer-review

271 Scopus citations


The crystal structure of the Escherichia coli trp repressor has been solved to atomic resolution. The dimeric protein has a remarkable subunit interface in which five of each subunit's six helices are interlinked. The binding of L-tryptophan activates the aporepressor indirectly by fixing the orientation of the second helix of the helix-turn-helix motif and by moulding the details of the repressor's structure near the DNA binding surface.

Original languageEnglish (US)
Pages (from-to)782-786
Number of pages5
Issue number6040
StatePublished - 1985

ASJC Scopus subject areas

  • General


Dive into the research topics of 'The three-dimensional structure of trp repressor'. Together they form a unique fingerprint.

Cite this