rigure 3.18 The 20 amino acids of proteins. The amino acids are grouped here according to the properties of their side chains (R groups) and shown in their prevailing ionic forms at pH 7.2, the pH cell, The three-letter and one-letter abbreviations for the amino acids are in parentheses. Nonpolar side chains; hydrophobic Side chain (R group)· CH CHз CH3 CHз снз Сн CH2 H. сн, CH CH2 Нс — сн H3N*-C-C-O- H,N*-C-C-O Н.N*—С —С -о- H,N*-C-C-O НaN* - С —С-о- H. H. O. Н H. H O Glycine (Gly or G) Alanine Valine Leucine Isoleucine (Ala or A) (Val or V) (Leu or L) (Ile or I) NH CH2 CH2 Fash CH2 begrl Cн, Cн> H,C сн, H,N*-C-C-0- H,N* -C-C-0 Н,N* - С — С —О- H,N*-C-C-0 || 6rit wo H. Н но sipordy onh hoy d (Pro or P) Methionine Phenylalanine (Phe or F) d 3 Tryptophan o lo quong loodiso Proline oa (Met or M) b (Trp or W) orima brod baod obitgeryieg s ahla s చరాయ NH, O Polar side chains; hydrophilic NH2 Since cysteine is only weakly polar, it is sometimes classified as a nonpolar amino acid. Он CH2 SH ОН QH CH3 vcq a CH sis Cн CH2 Cн, CH2 CH2 НN*- С -С —о- НaN*- С —с-о- H,N*-C-C-0 Н.N* - C -с-о- ||| H O H,N* -C-C-O- H;N*-C-C-O- H O H. H O H O Glutamine Cysteine (Cys or C) Tyrosine (Tyr or Y) Asparagine (Asn or N) Serine Threonine in (Gln or Q) (Ser or S) (Thr or T) Electrically charged side chains; hydrophilic nsoilin Basic (positively charged) wions faunimi NH2 C=NH,* NH, CH2 Acidic (negatively charged) NH NH+ CH2 Cн> CH2 Cн NH CH2 ÇH2 CH2 Cн2 CH2 НEN*-C -C -о- CH2 Н.N*-С —с-о- H,N*-C-C-0- H3N*-C-C-0- |3| H O H,N*-C-C-O- но H. Histidine Lysine (Lys or K) Arginine (Arg or R) H O (His or H) Aspartic acid (Asp or D) Glutamic acid (Glu or E) 3.
rigure 3.18 The 20 amino acids of proteins. The amino acids are grouped here according to the properties of their side chains (R groups) and shown in their prevailing ionic forms at pH 7.2, the pH cell, The three-letter and one-letter abbreviations for the amino acids are in parentheses. Nonpolar side chains; hydrophobic Side chain (R group)· CH CHз CH3 CHз снз Сн CH2 H. сн, CH CH2 Нс — сн H3N*-C-C-O- H,N*-C-C-O Н.N*—С —С -о- H,N*-C-C-O НaN* - С —С-о- H. H. O. Н H. H O Glycine (Gly or G) Alanine Valine Leucine Isoleucine (Ala or A) (Val or V) (Leu or L) (Ile or I) NH CH2 CH2 Fash CH2 begrl Cн, Cн> H,C сн, H,N*-C-C-0- H,N* -C-C-0 Н,N* - С — С —О- H,N*-C-C-0 || 6rit wo H. Н но sipordy onh hoy d (Pro or P) Methionine Phenylalanine (Phe or F) d 3 Tryptophan o lo quong loodiso Proline oa (Met or M) b (Trp or W) orima brod baod obitgeryieg s ahla s చరాయ NH, O Polar side chains; hydrophilic NH2 Since cysteine is only weakly polar, it is sometimes classified as a nonpolar amino acid. Он CH2 SH ОН QH CH3 vcq a CH sis Cн CH2 Cн, CH2 CH2 НN*- С -С —о- НaN*- С —с-о- H,N*-C-C-0 Н.N* - C -с-о- ||| H O H,N* -C-C-O- H;N*-C-C-O- H O H. H O H O Glutamine Cysteine (Cys or C) Tyrosine (Tyr or Y) Asparagine (Asn or N) Serine Threonine in (Gln or Q) (Ser or S) (Thr or T) Electrically charged side chains; hydrophilic nsoilin Basic (positively charged) wions faunimi NH2 C=NH,* NH, CH2 Acidic (negatively charged) NH NH+ CH2 Cн> CH2 Cн NH CH2 ÇH2 CH2 Cн2 CH2 НEN*-C -C -о- CH2 Н.N*-С —с-о- H,N*-C-C-0- H3N*-C-C-0- |3| H O H,N*-C-C-O- но H. Histidine Lysine (Lys or K) Arginine (Arg or R) H O (His or H) Aspartic acid (Asp or D) Glutamic acid (Glu or E) 3.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Concept explainers
Essential nutrients
These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.
Vitamins
The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.
Question
Study figure 3.18 in the textbook. See if you can understand why some R groups are nonpolar, some polar, and others electrically charged (acidic or basic). If you were given an R group, could you place it in the correct group? Work on the R groups until you can see common elements in each category.
Transcribed Image Text:rigure 3.18 The 20 amino acids of proteins. The amino acids are grouped here according to the
properties of their side chains (R groups) and shown in their prevailing ionic forms at pH 7.2, the pH
cell, The three-letter and one-letter abbreviations for the amino acids are in parentheses.
Nonpolar side chains; hydrophobic
Side chain
(R group)·
CH CHз
CH3
CHз снз
Сн
CH2
H.
сн,
CH
CH2
Нс — сн
H3N*-C-C-O-
H,N*-C-C-O
Н.N*—С —С -о-
H,N*-C-C-O
НaN* - С —С-о-
H.
H.
O.
Н
H.
H O
Glycine
(Gly or G)
Alanine
Valine
Leucine
Isoleucine
(Ala or A)
(Val or V)
(Leu or L)
(Ile or I)
NH
CH2
CH2
Fash CH2
begrl
Cн,
Cн>
H,C
сн,
H,N*-C-C-0-
H,N* -C-C-0
Н,N* - С — С —О-
H,N*-C-C-0
|| 6rit wo
H.
Н
но
sipordy onh
hoy d (Pro or P)
Methionine
Phenylalanine
(Phe or F)
d 3 Tryptophan o lo quong loodiso Proline oa
(Met or M)
b (Trp or W)
orima
brod
baod
obitgeryieg s ahla s
చరాయ
NH, O
Polar side chains; hydrophilic
NH2
Since cysteine is only weakly
polar, it is sometimes classified
as a nonpolar amino acid.
Он
CH2
SH
ОН
QH CH3 vcq a
CH sis
Cн
CH2
Cн,
CH2
CH2
НN*- С -С —о-
НaN*- С —с-о-
H,N*-C-C-0
Н.N* - C -с-о-
|||
H O
H,N* -C-C-O-
H;N*-C-C-O-
H O
H.
H O
H O
Glutamine
Cysteine
(Cys or C)
Tyrosine
(Tyr or Y)
Asparagine
(Asn or N)
Serine
Threonine
in (Gln or Q)
(Ser or S)
(Thr or T)
Electrically charged side chains; hydrophilic
nsoilin
Basic (positively charged)
wions
faunimi
NH2
C=NH,*
NH,
CH2
Acidic (negatively charged)
NH
NH+
CH2
Cн>
CH2
Cн
NH
CH2
ÇH2
CH2
Cн2
CH2
НEN*-C -C -о-
CH2
Н.N*-С —с-о-
H,N*-C-C-0-
H3N*-C-C-0-
|3|
H O
H,N*-C-C-O-
но
H.
Histidine
Lysine
(Lys or K)
Arginine
(Arg or R)
H O
(His or H)
Aspartic acid
(Asp or D)
Glutamic acid
(Glu or E)
3.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education