Undergraduate
Life Science & Medicine

生物化學 胺基酸

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ページ1:

.
生物化學(二)表現part.胺基酸.
Ch1. Brosynthesis of nonessential amino acid-
→胎壁酸代謝概况.
>胺基酸的簡介:
→非必须胺基酸之生合成
1. Transamination As
•21 Deamination
area cycle 尿素循環
來源
組織
Diet pritein
修復
tissue protein Arano Acid 非蛋白質讓物質
ansamination
Carbohydrate
At
glutamate Acetyl-CoA ketone bodies
↓
Lipid:
(TCA.
gle
Aurea
箭頭的方向
C02
.肟基酸基本結構
鹼性 H2N-C-COOH 酸性
腰茎
R
羧基
側鏈
重要的:
AB (Ala) R7-CH₂ (3c)
·天門冬醯胺(Asm)R=>-CH2-CONH2(4C)中性脂基酸
天門冬胺酸(ASP)R=)-CH2-COOH (4K) 酸性
A (Glu) R= -CH2-CH2- Goon (5c) 324
.麩胺酸醯胺(Gln)R=>-CH2-CH-CONH2(5C)中性
非必需Amino Acid
Alanine
Arginine
Asparaginė
Aspartate
Cysteine.
Glutamate
Glutaminer
Glycine
Proline
Serine
Tyrosine.
必需Amino Aid
Histidine.
Isoleucine
Leucine
Lysine.
Methionine.
Phonylalanine
Threenine
Tryptophan.
Valine.
Double A

ページ2:

Transamination
NH>
-OOC-C-R
H
amino acid
HUDC-C
x-ketoacid
-CH₂CH₂COO".
x-ketoglutarate
($C)
Deamination
WHY
-OOC-C-CH₂CHICO-
WH
-00C-C-CH₂CH₂ COO-
α-KG Fo Glu₤101
glutamic acid 1994 Gluca.
(50)
→ 647-1954 લ 4 Glu
'H' Glutamate in liver.
H
0
+ Glutamate dehydrogenase
Aα-KG A 2132 other thing
2-ketoglutarate
Glutamate 453 (Glu)
=0
·α-ketoglutarate
aa H
11
NH3+
L-Glutamate
H20
NAD(P)
NAD(P)H +HT
需耗能
2. Glutamine: 644 65. (Gth).
NH
L-Glutamate
L-Glutamine
WHI
Mg-AIP Mg-ADP-
耗能.
1.
1. 12 glutamate delydrogenase
211887 as 547-35%
不反应可逆
4. WHAT BENADI.
⇒多餘脂换掉
'
1. glutamine synthetase
"
,與Glu合成均需能量,此為Mg-ATP
3. WHAT HE
血液中游離腰
→血腰濃度过高,肝無法完全處理
放先將脢存在Gln上.
7744131
Double A