Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
![First letter
U
C
A
UUU
UU
JUC
UUA
UUG
CUU
CUC
CUA
CUG
AUU
AUC
AUA
AUG
GUU
GUC
GUA
GUG
]
Phenylalanine UCU
(Phe)
UCC
UCA
UCG
Leucine
(Leu)
Leucine
(Leu)
Isoleucine
(Ile)
Methionine
(Met)
Valine
(Val)
CCU
CCC
CCA
CCG
b) lysine
c) methionine
d) tryptophan
ACU
ACC
ACA
ACG
GCU
GCC
GCA
GCG
C
Second letter
Serine
(Ser)
Proline
(Pro)
Threonine
(Thr)
Alanine
(Ala)
UAU
UAC
UAA
UAG
CAU
CAC
CAA
CAG
AAU
AAC
AAA
AAG
GAU
GAC
GAA
GAG
]
Tyrosine
(Tyr)
Stop
Stop
Histidine
(His)
Glutamine
(Gln)
Asparagine
(Asn)
Lysine
(Lys)
Aspartic acid
(Asp)
Glutamic acid
(Glu)
UGU
UGC
UGA
Stop
UGG Tryptophan
(Trp)
CGU
CGC
CGA
CGG
AGU
AGC
AGA
AGG
GGU
GGC
GGA
GGG
]
1. List the mRNA base codons for the amino acids listed below.
2. a)
aspartate:
Cysteine
(Cys)
Serine
(Ser)
U
C
Arginine
(Arg) A
G
Arginine
(Arg)
U
C
Glycine
(Gly)
A
G
U
C
A
G
U
MCAG
А](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b472949-5f23-44ab-b7d0-1dd946b1746a%2F12a8b498-4dc3-4037-9b1e-f0edadcf0264%2F1sh98si_processed.png&w=3840&q=75)
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