Rho - Biology Forum

last updated by

Christina 18 years, 11 months ago

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7 replies

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- February 18, 2006 at 8:35 pm #3691
  Christina
  Participant
  Does anyone know what the difference between rho+ , rho-, and rhoº?
- February 25, 2006 at 8:55 am #41750
  kiekyon
  Participant
  do you mean rh+ and rh-
- February 25, 2006 at 11:19 am #41753
  sdekivit
  Participant
  you mean rho as the termination factor in transcription ?
- February 25, 2006 at 5:40 pm #41777
  Ajay
  Participant
  Do u mean the initiation transcription factor which binds with the Rna polymerase?
- February 25, 2006 at 5:44 pm #41779
  sdekivit
  Participant
  quote Ajay:
  Do u mean the initiation transcription factor which binds with the Rna polymerase?
  hmmm i only know the rho protein that helps terminate the transcription of some genes, not the initiation of transcription 🙄 ❓
- February 26, 2006 at 5:51 pm #41854
  Ajay
  Participant
  Yeah Rho actually helps in termination of transcription, but it gets attached during the initiation stage of transcription to the Rna polymerase enzyme and gets released during termination. Ok there are two types of terminators.
  1) Rho dependent
  2) Rho independent
  1) Rho dependent:
  Termination with presence of Rho-factor. Rho is a protein with six subunits. It only binds to a specific sequence.
  2) Rho independent:
  They are called intrinsic terminators. They consist of two sequences, a short inverted repeats having 20 nucleotides, followed by a stretch of 8 AT base pairs.
  AJAY
- February 26, 2006 at 9:42 pm #41864
  sdekivit
  Participant
  the last pathway involves a hairpin loop in the DNA 🙂
- March 8, 2006 at 7:35 pm #42823
  Christina
  Participant
  I was actually looking at the rho (not the protein) and how it was associated with mitochondrial DNA. I think that it is in referance to wild type and mutant but I am not exactly sure.
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