© Macmillan Learning Match each structure and description to the appropriate amino acid. Glycine Histidine NH₁₂+ NH₁₂+ H HH III H-C-C-C-C-COO- H H CH, H no chiral centers ↓ H-C-COO H one chiral center 0 Resources Solution ? Hint Sub Penalized Isoleucine H NH₁* ↓ H-C=C-C-C-COO IIII ┃┃ -z' N H NH H H smallest R group R group partially protonated at physiological pH two chiral centers Answer Bank

© Macmillan Learning Match each structure and description to the appropriate amino acid. Glycine Histidine NH₁₂+ NH₁₂+ H HH III H-C-C-C-C-COO- H H CH, H no chiral centers ↓ H-C-COO H one chiral center 0 Resources Solution ? Hint Sub Penalized Isoleucine H NH₁* ↓ H-C=C-C-C-COO IIII ┃┃ -z' N H NH H H smallest R group R group partially protonated at physiological pH two chiral centers Answer Bank

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter22: Proteins

Section: Chapter Questions

Problem 22.59P: 22-59 What is the effect of salt bridges on the tertiary structure of proteins?

See similar textbooks

Similar questions

22-59 What is the effect of salt bridges on the tertiary structure of proteins?
Isoleucine and threonine are the only two amino acids with two chirality centers. Assign R or S configuration to the methyl-bearing carbon atom of isoleucine.
22-91 Which amino acid does not rotate the plane of polarized light?
5.Indicate the amino acid as polar or nonpolar OH CH: 0 H₂N-C-C-OH H O CH, 0 !! H₂N-C-C-o H CH3 CH3 CH CHO 11₂N-C-C-07 H 6) Acids and bases denature a protein by disrupting A) peptide bonds and ionic bonds. B) amide bonds and alkene bonds. C) hydrophobic interactions and peptide bonds. D) ionic bonds and hydrophobic interactions. E) ionic bonds and hydrogen bonds. 5) Heat denatures a protein by disrupting A) ionic bonds and peptide bonds. B) hydrophobic bonds and hydrogen bonds. C) peptide bonds and hydrophobic bonds. D) disulfide bonds and peptide bonds. E) hydrogen bonds and disulfide bonds. 7) Denaturation of a protein A) changes the primary structure of a protein. B) disrupts the secondary, tertiary, or quaternary structure of a protein. C) is always irreversible. D) hydrolyzes peptide bonds. E) can only occur in a protein with quaternary structure. 8) Heavy metals denature proteins by A) releasing amino acids. B) disrupting hydrophobic interactions. C) changing the pH of the…
of 25 > © Macmillan Learning Match each structure and description to the appropriate amino acid. لا Glycine Resources Solution Penalized Hint Submit Answ Histidine Isoleucine Answer Bank H NH₁* H-C=C C-C-COO R group partially protonated at physiological pH one chiral center smallest R group N NH H H CII H NH₁₂+ H-C-COO two chiral centers no chiral centers E CH HHH NH¸* H-C-C-C-C-COO | | HH CH, H X Attemp zoom
Which of the natural amino acids below are acidic? H NH₂ HO 00000 Glycine (Gly; G) H₂N OH NH₂ Serine (Ser; S) NH H Gly Ala Val Leu NH₂ Methionine (Met; M) OH Phe Me. Arginine (Arg; R) HS OH HO NH₂ NH₂ Alanine (Ala; A) OH NH₂ Cysteine (Cys; C) OH OH the NH₂ NH₂ Threonine (Thr; T) OH Valine (Val, V) H₂N. HN OH H₂N EN NH₂ Histidine (His; H) NH₂ Asparagine (Asn ; N) Glutamine (Gln; Q) OH Leucine (Leu; L) OH NH₂ NH₂ OH НО. OH HO O NH₂ Aspartic acid (Asp; D) NH₂ Glutamic acid (Glu; E) HN- Phenylalanine (Phe; F) NH₂ OH H₂N Tryptophan (Trp; W) HiOH NH₂ OH OH H₂N. HO Lysine (Lys; K) ΝΗ O Proline (Pro; P) NH₂ NH₂ Asparagine (Asn ; N) OH OH Tyrosine (Tyr; Y) OH NH₂ OH
H. H. H. CH2 (CH2)4 NH3* CH2 но CH CH, CH CH2 CH2 H. (a) (b) (e) Which of the interactions stabilizing protein tertiary structure is (a)? O hydrophobic interaction O disulphide bridge bonding O hydrogen bonding O salt bridge bonding
All amino acids have two ionizable functional groups: an a-amino group (average pK, of 9.4) and an a-carboxylic acid group (average pK, of 2.2). Tyrosine also has an ionizable side chain (R group) with a pK, of about 10.1. One of the possible ionization states of tyrosine is shown. H3N-CH -C-OH CH2 ÓH At what pH would the structure be the predominant ionization state? Consider the ionization state of all three of the functional groups. The protonated form of the R group of tyrosine is shown in the structure. The ratio of the protonated form to the charged (deprotonated) form depends on the pK, of the R group and the pH of the solution. Select the pH value at which the charged form of the R group would predominate.
Give the full name of the amino acid and based on the structure of the side chain is it hydrophobic or hydrophilic?
ogical Marcomalee Identifying specific interactions between residues in a protein Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R, come close to each other. Here's what R, looks like: -CH- -- CH2 OH O yes Could R, form a hydrogen bond with R₂ at physiological pH, if R₂ were the right kind of residue? O no If you said R, could form a hydrogen bond with R2, what would R₂ have to be? If there's only one possibility, write its 3-letter code. If there is more than one possibility, write the 3-letter code of any of them. 0 Explanation Check ㅎ C S A * 2 # 3 $ 4 Z W M S X Ő % Λ 25 & 6 7 E R T Y U D C dill LLC. All Rights Reserved. Terms of Use Privacy Center NP 8 A 9 O 0 LL F G H J K L V B N M P alt
2. Classify the following amino acids as nonpolar, polar basic, polar acidic, or polar neutral. (a) (b) (c) (d) H₂N-CH-COH CH-OH I CH3 || H₂N-CH-C-OH I CH₂ C=O 1 OH H₂N-CH-C-OH CH₂ T CH-CH3 CH₂ H₂N-CH-C-OH ī CH₂ OH 229
Identify the features of the two bonded amino acids depicted in the image. HOHH | || | | N-C-C-N-C-C CH CH₂2 CH₂2 CH₂ CH₂ I I CH₂ CH₂ NH₂+ O OH Answer Bank hydrophilic side chain hydrophobic side chain peptide bond carboxyl group amino group