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49 Cards in this Set

  • Front
  • Back
Alanine
Structure?
Abbreviation(s)?
Additional Information?
Ala
A
Nonpolar, Hydrophobic
Glycine
Structure?
Abbreviations?
Additional Information?
Gly
G
Polar, Uncharged
Valine
Structure?
Abbreviation(s)?
Additional Information?
Val
V
Nonpolar, Hydrophobic
Serine
Structure?
Abbreviation(s)?
Additional Information?
Ser
S
Polar, Uncharged
Leucine
Structure?
Abbreviation(s)
Leu
L
Nonpolar, Hydrophobic
Cysteine
Structure?
Abbreviation(s)?
Additional Information?
Cys
C
Polar, Uncharged
Tyrosine
Structure?
Abbreviation(s)?
Additional Information?
Tyr
Y
Polar, Uncharged
Asparagine
Structure?
Abbreviation(s)?
Additional Information?
Asn
N
Glutamine
Structure?
Abbreviation(s)?
Additional Information?
Gln
Q
Polar, Uncharged
Threonine
Structure?
Abbreviation(s)?
Additional Information?
Thr
T
Polar, Uncharged
Isoleucine
Structure?
Abbreviation(s)?
Additional Information?
Ile
I
Nonpolar, Hydrophobic
Phenylalanine
Structure?
Abbreviation(s)?
Additional Information?
Phe
F
Nonpolar, Hydrophobic
Tryptophan
Structure?
Abbreviation(s)?
Additional Information?
Trp
W
Nonpolar, Hydrophobic
Methionine
Structure?
Abbreviation(s)?
Additional Information?
Met
M
Nonpolar, Hydrophobic
Proline
Structure?
Abbreviation(s)?
Additional Information?
Pro
P
Nonpolar, Hydrophobic
Aspartic Acid
Structure?
Abbreviation(s)?
Additional Information?
Asp
D
Polar, Acidic
Glutamine Acid
Structure?
Abbreviation(s)?
Additional Information?
Glu
E
Polar, Acidic
Lysine
Structure?
Abbreviation(s)?
Additional Information?
Lys
K
Polar Basic
Arginine
Structure?
Abbreviation(s)?
Additional Information?
Arg
R
Polar, Basic
Histidine
Structure?
Abbreviation(s)?
Additional Information?
His
H
Polar, Basic
Proteins are made of ___.
Amino Acids
Monomer Units
Amino acids have ___ isomers.
L isomers only.
No D isomers.
Most amino acids have ___ configuration.
S configuration
NOT R configuration
Proline is unique because ___ _____ _____.
It is con
These Amino Acids are positively charged at neutral pH.
Lysine, Arginine
Histidine (can be)
These Amino Acids are acidic ___ and ____.
Aspartic Acid
Glutamic Acid
What are other names of Aspartic Acid and Glutamic Acid?
Aspartate
Glutamate
Primary Structure is ____.
Amino acid sequence
Secondary Structure of a protein is made up of _____, _____, _____, and _____.
Alpha Helix
Beta pleated sheet
Beta turn
Omega Loop
Characteristics of Alpha Helix?
Rodlike structure.
Essentially all helices found in proteins are _____, which means they are _____wise.
right-handed
clockwise
Beta plated sheets are made of _____ that are mostly _____ ______.
made of two or more polypetide chains
that are mostly fully extended rather than tightly coiled.
Reversals are formed between _____ and _____.
CO group and +3 NH group
By hydrogen bonding.
Motifs aka _____, have _____ functions and are combos of _____ structures.
One such is the __-__-__.
Supersecondary Structure exhibit similar functions of 2nd structures (in many proteins). such as Helix-turn-Helix
Primary Structure:
Secondary Structure:
Tertiary Structure:
Quaternary Structure:
A.A. Sequence (1)
Spatial Arrangement within (2)
Spatial Arrangement long r (3)
Subunits interact (4)
How is Hemoglobin a Quaternary structure?
Two subunits of
Alpha
Beta
How are Disulfide Bonds Cleaved?
beta-mercaptoethanol
breaks teh Cystines (S)
Which A.A. tend to be alpha helices?
Alanine, Glutamate, Leucine
Which A.A. tend to be beta strands?
Valine, Isoleucine
Which form Alpha Helix or Beta sheet is considered the default? and Why?
Alpha Helix, due to beta being formed by steric clashes
Acetyl groups are attached to the _____ terminal and provide _____.
Amino terminal
providing resistance to degradation
What is an amide bond?
Binding between Carboxyl group and amino group.
Why is a peptide bond important?
(1) resistant to hydrolysis
(2) Planar
(3) H-bond donor= NH, acceptor CO
(4) H bonding is distintive
(5) peptide is uncharged, allows tightly packed globular structures (buried within protein interior)
Major elements of Secondary Structure?
Alpha Helix
Beta Sheets
Alpha Helix is?
Twisted polypeptide chains in a tightly packed rod.
Beta Sheets?
CO group bonded to NH group
More strands connected by NH -CO H bonds
Types of Sheets?
Antiparallel, parallel, mixed
Tertiary Structure
Water-soluble?
Interior formed with Hydrophobic,
Exterior (surface area) of hydrophilic units.
Quaternary Structure made of?
and Bonded by?
Subunits
Noncovalent Bonds