Endoplasmic Reticulum Analogy

Loading...

The surface of the rough endoplasmic reticulum (often abbreviated RER or Rough ER) (also called granular endoplasmic reticulum) is studded with protein-manufacturing ribosomes giving it a "rough" appearance (hence its name). The binding site of the ribosome on the rough endoplasmic reticulum is the translocon. However, the ribosomes are not a stable part of this organelle's structure as they are constantly being bound and released from the membrane. A ribosome only binds to the RER once a specific protein-nucleic acid complex forms in the cytosol. This special complex forms when a free ribosome begins translating the mRNA of a protein destined for the secretory pathway. The first 5–30 amino acids polymerized encode a signal peptide, a molecular message that is recognized and bound by a signal recognition particle (SRP). Translation pauses and the ribosome complex binds to the RER translocon where translation continues with the nascent (new) protein forming into the RER lumen and/or membrane. The protein is processed in the ER lumen by an enzyme (a signal peptidase), which removes the signal peptide. Ribosomes at this point may be released back into the cytosol; however, non-translating ribosomes are also known to stay associated with translocons.

Cell Analogy Project by Jordan Lopez

Mind Stretcher – Copy Both - ppt video online download

Smooth Er Analogy Related Keywords - Smooth Er Analogy ...

Cell Analogy Sagit by Sagit Anne

Bio cell project

Cell Structure & Function - ppt video online download

Bio cell project

How is a Cell like a City Cell Analogies. - ppt download

Cell Analogy Shawn Sharrak. - ppt video online download

Bio cell project

Cell Analogy

Cell Analogy Example

Cell Analogy by Kristen Ho

Cellular Structure & Function - ppt download

Cell Structure Organelles. - ppt video online download

Cell Analogies by Sarah Kozberg

Cell Analogy iPhone. - ppt video online download

Cell Organelle Analogies - ppt download

Cell project Jonathan haims 7 w

Cells and Organelles The building blocks of Life - ppt ...

Animal cell project avital s.

Power pointcellfunction

PPT - Cell Parts Analogy: Shopping Mall PowerPoint ...

PPT - Cell Analogy Analogy to a School PowerPoint ...

Cell Analogies (SpongeBob Theme) - ppt video online download

Please update your vocab sheet - ppt download

Cell Organelle Analogies

The cell factory ppt