·
proteins are denatured in the stomach and digested in the small
Overview intestine
amino from 90 %
acids come
exogenous and Andogenous sources 10 % used for energy needs
; used as
building blocks
-
~
)
↳
protein )
↳
protein (ex : skeletal acid
·
amino catabolism increases when :
consumed muscle breakdown)
① glucose is unavailable + a . a . used in
gluconeogenesis
proteins constantly undergo turnover ② protein content of diet exceeds need for
building blocks
when cells die , the proteins that make up the cells get broken
-
down into amino acids for the animal to use Amino Acid Properties
①
proteins
stereochemistry
S ② hydrophobicity
& or
polarity
protein
protein ③
degradation hydrogen bonding properties
synthesis
↳ ④
amino
- ionization properties
acids
-
metabolism
·
can also be used to synthesize non-protein metabolites
·
essential amino acids cannot be synthesized by the body and
must be consumed in diet
, Aliphatic Amino Acids (Nonpolar) Aromatic Amino Acids
Glaciers Alaska Isolated Prowlers Yellow Timber Worth the
in
valliantly
(valine)
Locate
(leucine) Lisoleucine)
The Aroma of Fine Pine and are
Tryp
(glycine) calanine) (proline) (phenylalanine ( Ityrosine) (tryptophan
200
-
Coo- Coo-
COO- COO- Coo-
COO-
-
COO
I Coo-
C HHINT-c-H HaNt-c H H3NT- 42NT-C H3NT C
--
H3N" C
+
C -
H H
+
1 + N -
- - -
H
- -
I
HsN H
HzNT
I
- -
dis inc
↓ I
CH2
-
c -
H
HzC CH
CH2
CH3 CH2
va ?
-
H2 - I
nzc CH3
I
CH2
in
#
CHz
F
CH2
#
/ I
ring structure
, -
HzC CH3
CH3 but not aromatic
&
conformational &
isomers
Alcohol Amino Acids Basic Amino Acids Sulfur-containing Amino Acids
Alcohol is a Serious Threat Basically ,
His Lost Kid
Always Returned
Methodically Check
(serine) (threonine) Chistidine) Clysine) carginine) (methionine) (cysteine)
- COO COO Coo -
COO COO- Coo
I
Coo-
I
I I +
+
c
HzNt -C
HzN C H
HzNT H HsN -
M
H3N+
-
c
-
+
-
- -
-
C -
H C -
H -
H HyN - -
4
I I CHz I
H
CH2
CH2
CH2 CH2
Ho-cr ↑ I
CHz r
I
OH CH3 un CH2
CH2
CH2 CH2
I
'
CH2 NH
I ins
NH3
C
+
- *
Acid Amino Acids HIN NH2
As Peter Digested the Glue , Stomach
His Became Acidic Amide Amino Acids
Caspartate) (glutamate)
Amid this neatly stacked Asparagus is Glutinous
a Quail
COO- COO-
Lasparagine (glutamine)
I
I
HzN"
-
HzN" c H Coo
- -
-
-
c -
H Coo
I I
I I +
CH2 HzNT c
H3N -
c -
H
CH2
- -
H
CH
&
CH2
I
CH2 2
Coo- I
I
,
Coo- CH 2
H2N O
42N -
C =
0