David Parma
University of Colorado Boulder
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Publication
Featured researches published by David Parma.
Journal of Molecular Biology | 1990
Craig Tuerk; Sean R. Eddy; David Parma; Larry Gold
The synthesis of the DNA polymerase of bacteriophage T4 is autogenously regulated. This protein (gp43), the product of gene 43, binds to a segment of its mRNA that overlaps its ribosome binding site, and thereby blocks translation. We have determined the Kd of the gp43-operator interaction to be 1.0 x 10(-9) M. The minimum operator sequence to which gp43 binds consists of 36 nucleotides that include a hairpin (containing a 5 base-pair helix and an 8 nucleotide loop) and a single-stranded segment that contains the Shine-Dalgarno sequence of the ribosome binding site. In the distantly related bacteriophage RB69 there is a remarkable conservation of this hairpin and loop sequence at the ribosome binding site of its DNA polymerase gene. We have constructed phage operator mutants that overproduce gp43 in vivo, yet are unchanged for in vivo replication rates and phage yield. We present data that show that the replicative and autoregulatory functions are mutually exclusive activities of this polymerase, and suggest a model for gp43 synthesis that links autoregulation to replicative demand.
Archive | 2003
David Parma; Brian Hicke; Philippe Bridonneau; Larry Gold
Genes & Development | 1992
David Parma; M Snyder; S Sobolevski; M Nawroz; Edward N. Brody; Larry Gold
Archive | 2000
Brian Hicke; Stephen Warren; David Parma; Larry Gold
Archive | 1995
David Parma; Larry Gold
The New biologist | 1989
Ruckman J; David Parma; Craig Tuerk; Hall Dh; Larry Gold
Journal of Virology | 1987
Sidney Shinedling; David Parma; Larry Gold
Developmental Biology | 2007
David Parma; Paul E. Bennett; Robert E. Boswell
Archive | 1995
David Parma; Brian Hicke; Larry Gold
Archive | 2003
Brian Hicke; Stephen Warren; David Parma; Larry Gold