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| chitchat Total Posts: 43 | Posted: Wed Feb 27, 2008 05:55 pm the transmembrane region of cell membrane is likely to have? 1. stretch of hydrophobic amino acids. 2. stretch of hydrophilic amino acids. 3. both of above 4. disulphide loops pls explain the reason also. |
| RABIES Total Posts: 42 | Posted: Wed Feb 27, 2008 07:18 pm THE ANS IS 3) BOTH OF THE ABOVE. INTEGRAL PROTEINS OR TRANSMEMBRANE PROTEINS Span the membrane and have a hydrophilic cytosolic domain, which interacts with internal molecules, a hydrophobic membrane-spanning domain that anchors it within the cell membrane, and a hydrophilic extracellular domain that interacts with external molecules. The hydrophobic domain consists of one, multiple, or a combination of α-helices and β sheet protein motifs. MYSELF HAVE MADE RS 4500/- JUST FOR SEARCHING THE NET.YOU CAN ALSO JOIN. https://www.mysearchfunds.com/apply001.asp?Friend=1228 |
| chitchat Total Posts: 43 | Posted: Wed Feb 27, 2008 07:55 pm ok.so, the portion of the protein outside the membrane is hydrophilic and the portion inside the membrane is hydrophilic as well.Then, the portion spanning the membrane is hydrophobic. By trans membrane, what do we mean? Is it the entire protein or the only portion spanning the membrane proper? I am very confused. |