Chapter 5 p3_Spr11 - Proteins Proteins Chapter 5 (pages 77...

Info iconThis preview shows pages 1–18. Sign up to view the full content.

View Full Document Right Arrow Icon
Proteins Proteins Chapter 5 Chapter 5 (pages 77 – 86) (pages 77 – 86)
Background image of page 1

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

View Full DocumentRight Arrow Icon
An Overview of Protein Functions fyi
Background image of page 2
Fig. 5-UN1 Amino group Carboxyl group α carbon
Background image of page 3

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

View Full DocumentRight Arrow Icon
Remember: Proteins consist exclusively of L-amino acids
Background image of page 4
Background image of page 5

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

View Full DocumentRight Arrow Icon
Main chain vs Side Chain (R group) Zwitterion: predominant form at neutral pH
Background image of page 6
Fig. 5-17a Nonpolar Amino acids Glycine (Gly or G) Alanine (Ala or A) Valine (Val or V) Leucine (Leu or L) Isoleucine (Ile or I ) Methionine (Met or M) Phenylalanine (Phe or F) Tryptophan (Trp or W) Proline (Pro or P)
Background image of page 7

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

View Full DocumentRight Arrow Icon
Fig. 5-17b Polar Amino acids Asparagine (Asn or N) Glutamine (Gln or Q) Serine (Ser or S) Threonine (Thr or T) Cysteine (Cys or C) Tyrosine (Tyr or Y)
Background image of page 8
Fig. 5-17c Acidic Arginine (Arg or R) Histidine (His or H) Aspartic acid (Asp or D) Glutamic acid (Glu or E) Lysine (Lys or K) Basic Charged amino acids
Background image of page 9

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

View Full DocumentRight Arrow Icon
Amino acids classification Am ino  a c ids  with no n-po la r R g ro ups   (no npo la r a m ino  a c ids ) Amino acids with polar R groups (polar amino acids) Amino acids with charged R groups
Background image of page 10
20 standard  amino acids  found in  peptides and  proteins
Background image of page 11

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

View Full DocumentRight Arrow Icon
Amino acids interact through R groups C o va le nt b o nding  – a m ino  a c ids   invo lve d? No n-c o va le nt b o nding 1) H-b o nding -  amino acids involved? 2) Io nic  b o nds -  amino acids involved? 3) Hydro pho b ic  inte ra c tio ns -  amino acids involved?
Background image of page 12
Background image of page 13

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

View Full DocumentRight Arrow Icon
Polypeptides Polypeptides Are polymers of amino acids A protein Consists of one or more polypeptides folded or coiled in  specific conformations
Background image of page 14
Amino acids are connected head to tail NH 2 C N COOH O H 2 1 Dehydration -H 2 O NH 2 CO OH 1 N H 2 COOH 2
Background image of page 15

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

View Full DocumentRight Arrow Icon
Background image of page 16
SIDE CHAIN MAIN CHAIN
Background image of page 17

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

View Full DocumentRight Arrow Icon
Image of page 18
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/04/2011 for the course BIO 311C taught by Professor Satasivian during the Spring '08 term at University of Texas at Austin.

Page1 / 45

Chapter 5 p3_Spr11 - Proteins Proteins Chapter 5 (pages 77...

This preview shows document pages 1 - 18. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online