Chap 2 - Chap 2 20 amino acids name and structure D or L 1...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chap 2 20 amino acids name and structure
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
D or L 1) Swap carboxyl group to top of drawing 2) Move R group to bottom 3) If possible move NH2 left 4) If even number of swaps then L if odd then D Peptide Bonds Post Translational Modifications Acetyl group + Amino Acid = protein resistant to degradation
Image of page 2
Hydroxyl group + Amino Acid = stabilizes newly sysnthized collagen fibers which helps in scurvy Y-carboxyglutamate = helps in vitamin K deficiency, prevents hemorrhaging Phosphoserine and Phosphothreonine = most modified Amino Acid in proteins Ramchandran Plot - tool used for analyzing structure of protein , – β easier to attack because its spaced out , α harder to attack because its coiled up , rotation around C + NH2 φ α , rotation around C + C=O ψ α Screw sense can be right handed, clockwise or left handed counterclockwise Right handed is more favorable/ less steric clash between side chains and backbone. All , α helices are right handed Ramchandran Diagram for Helices
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Ramchandran Diagram for sheets β
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern