Biochem Proteins and Structures

  • Thread starter Thread starter 752779
  • Start date Start date
This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.
7

752779

Hey Guys, I have not taken Biochem yet, however I can manage to eliminate the choices down to 50%. Can anyone explain why R8D substitution replaces a positive charged residue with a negatively charged residue?
How can one recognize that R8D is a positive or a negative charged residue?
How come K4R is not has no role in substitution?

Thanks
Screen Shot 2016-05-23 at 12.38.12 PM.png
Screen Shot 2016-05-23 at 12.38.26 PM.png
Screen Shot 2016-05-23 at 12.38.38 PM.png
 
If you have not taken biochem, the first thing you should memorize (yes, I am saying memorize here because there is no way around it even though I am very strongly against memorizing material for the MCAT) are the amino acid properties, 3- and 1-letter codes, and structures. These are very high yield on the MCAT and you must know these.
 
I agree completely! You need to know the general ideas of each and every one of them. Such as "Can this amino acid be phosphorylated?"
Even pKa/how pH affects the ionic charge of them. But First, you gotta know what they look like which will help. Watch these videos 8 times (im not kidding.) Draw out each one until you got the hang of it.


 
I agree completely! You need to know the general ideas of each and every one of them. Such as "Can this amino acid be phosphorylated?"
Even pKa/how pH affects the ionic charge of them. But First, you gotta know what they look like which will help. Watch these videos 8 times (im not kidding.) Draw out each one until you got the hang of it.



Thanks so much!
 
Top