Lect_4_notes - Bio 1A Lecture 4 Professor Schlissel Amino...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Bio 1A Lecture 4 January 30, 2008 Professor Schlissel Amino Acids, Proteins and Protein Structure 1. Proteins are polymers of amino acid building blocks. Sizes range from ~10 to greater than ~30,000 amino acids in length. By first the most diverse and important family of macromolecules in living organisms. Proteins are responsible for most all of cellular function including catalysis, structure, motility, storage, signaling, transport, defense, etc. 2. Structure of an amino acid. 20 different “R” groups (side-chains) define 20 different amino acids. Structural diversity comes from the number of ways one can put together polymers of these amino acids. 100 amino acid protein—20 100 possibilities!!! 3. Amino acids can be groups based on chemical similarity of their R groups. Nonpolar, aliphatic; polar, uncharged; positively charged; negatively charged; aromatic. Know which group each of the 20 amino acids falls into. Cysteine is unique in its ability to form disulfide bonds.
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
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