ribosomes - Biology Forum

last updated by

kitty82 18 years, 9 months ago

2 voices

3 replies

Author
Posts
- March 26, 2006 at 5:08 pm #4179
  swatkat
  Participant
  ribosomes r measured in svedberg units,right?
  eukaryotic ribosomes are 80s types
  if i am correct 😉
  ribosomes have two subunits
  40s and 60s subunits
  so how come the total is more than 80s ❓
  can some one explain what sedimentation coefficient actually is ❓
- March 26, 2006 at 5:52 pm #44314
  kitty82
  Participant
  The unit "S" means Svedberg units, a measure of the rate of sedimentation of a particle in a centrifuge, where the sedimentation rate is associated with the size of the particle. Svedberg units are not additive – two subunits together can have Svedberg values that do not add up to that of the entire ribosome.
- March 27, 2006 at 10:03 am #44354
  swatkat
  Participant
  right……thx kitty82 😀
  what other organelles are measured in svedberg units?
  i guess other organelles can be measured by their sedimentation rates
- March 27, 2006 at 4:57 pm #44381
  kitty82
  Participant
  Sure, no prob.
  There are some organelles that can be measured IN S.U such as mitochondria, microsomes maybe nucleus but not sure. It could be used for gradient seperations that depend on their sedimentation rates. 🙂
Author
Posts

You must be logged in to reply to this topic.