?10? ??? Metabolism of Lipids - PowerPoint PPT Presentation

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?10? ??? Metabolism of Lipids

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Title: ?10? ??? Metabolism of Lipids


1
?10? ??? Metabolism of Lipids
2
??????
  • ???????
  • ???????
  • ???????
  • ???????
  • ?????
  • ????????

3
1 ???????
  • ???????(lipids)???????????
  • ??????? ( Triglyceride, TG),?????,??
  • ????, ??????,??????????.
  • ?????????????????????????
  • ???,???????????,???????,?
  • ????????????????????

4
  • ??????????????????
  • ??????????????????????? (Essential
    fatty acids)????????(Polyunsaturated Fatty
    Acids,PUFA)??????????,???????,????(182),????(183
    )??????(204)??????????????,??????????,???????????
    ??
  • ?????????????????????????

5
2 ???????
  • 2.1 ?????( adipokinetic action)
  • ?????????????????????????????????????
    ????????
  • ????????????????,?????,????????
    ????????

6
2.2 ????? ?????????????,???????????????????
,???????????????????????
??
???????,????????, ?????????
7
2.3 ???????? Knoop?? ???????????
?????,?????,????????????,?????????????
??
FA??????????ß-???,?????????2C??
??
8
2.3.1 ????ß-??
  • ???????????ß-????,??????????CoA?????
    ????????CoA, ???????
  • ??CoA???????????????????
  • ????ß?????????????

9
???????????(?????,160
)?? (1) ??????????CoA    
RCH2CH2CH2COOH HSCoA ATP  
RCH2CH2CH2CO-SCoA AMP PPi  
??????????CoA???(???),??
?????ATP????2????
10
(2) ?????????
L-(CH3)3N- CH2CH(OH)CH2COO-
L-ß-?-?-??????(??,carnitine)
11
(3) ?? ?????FADH
(4) ??
H2O
12
(5) ??? ?????NADH
(6) ??
????1?ß-??, ??1????CoA????2????? ??CoA,??
???,??,???,?????????,?? ?????????????CoA?
13
???ß-??? ?? ?????(??) ??(????) ??-??
-???-??-????(???) ???FADH?NADH?????,
??CoA???????????
14
???????????
  • ???(160) 8HSCoA 7NAD7FAD7H2O
  •  
  • 8??CoA7NADH27FADH2
  •  
  • 8??CoA 80ATP
  • 7NADH2 17.5ATP
  • 7FADH2 10.5ATP
  •  
  • ??108-2106ATP(??-2 )

15
2.3.2 ??????
  • ?-???????,C10 ?C11???????????(?-???)??????,???
    ?????????????,?????????????-??,????????CoA?????TCA
    ???????????????
  • ?-??????????,?????-???????,???-?????-????
    ?????????????????????????????????,???O2?Fe2??????
    ???

16
2.4 ????????? ????????
???CoA??? ???????????? ???CoA???
?????D(-)???L()
17
2.5 ???????? ?????????????????????.
18
2.6 ????????
  • ??(ketone body)?????????,????????????
    ???????????,?????( ???ß-???)?ß-??????????????CoA??
    ??,?????,????????????

????,30
  • -???,70

??,??
19
????(ketogenesis) ???? ??? ????CoA ???
ß-?-ß-???????CoA(HMGCoA)???(??)
20
????(ketolysis) ?????????????????,?????????
?????(??????-???CoA???,?????, ?????????),?????????
?CoA????????????
????
21
??????????(ketosis)
  • ???????????????,??????,???,???????????
    ?????????????????????????? ???????????????????????
    ,???????????????????
  • ???????,????,???????(???????,???????)
    ,????????,???????CoA,???????
  • ?????,????????,?????????????????????,
    ?????????,????CoA??, ??????????????????????????,??
    ????????????,????????,?????,????

22
3 ???????
  • 3.1 ?????
  • ?????????????????????-3-??
  • 3.2 ??????
  • ???CoA???,???????
  • ????CoA???????????,??????????CoA,
    ??????????????

23
(1) ??CoA??????????
(????)
???-?????
??? ???????? ?????? ???????(ATP)
??????? ?????(?NADP??????????) ??????? ???CoA???
??????????CoA,??? NADH???NADPH,??????
24
(2) ???CoA (2C)???????CoA (3C)
  • ????
  •  
  •  
  • ????CoA?????????????????????,??????,???????,?
    CO2, ??ATP,???????CoA??.

25
???????????? (??7???????????ACP)
  • 1       ??????
  • 2       ?????-ACP?????
  • 3       ???-ACP???(-SH)
  • 4       ???-ACP???
  • 5       ???-ACP???
  • 6       ???-ACP???
  • 7       ???
  • 8 ???????ACP(-SH)

ACP ???????CoA??
26
???????
???CoA??
?????CoA ??2C??
???CoA-ACP????? ??????CoA-ACP?????
?ß-???-ACP???(???) ?ß-???-ACP??? ?ß-???-ACP???
????-ACP???
27
  • ????????????
  • ????????CoA,??????CoA(3C??)????????(????CO2
    ),??????2????,????-??-???????,?????????????????,??
    ????ACP?-SH??,?????????????????????????????CoA?

28
????????? ??????????NADPH?????,
8?????CoA????????,6??????????
8??CoA 14NADPHH 7ATP H2O
??? 8HSCoA 14NADP 7ATP 7Pi
??? ??????????ß-???????????? ?????????????,??????
????
29
?????,?????????????7?????ACP?????????????,
???250kD, ???????????? ??????????????????

AT????,MT????????,CE???(ß-???ACP???) KRß-?????
?,DH???,ER??????,TE???
30
3.3 ?????????
???????
?????????????????,??????4 , ?5 ?8 ,
?9????,????9????????????????????????(181)?????(16
1)
31
3.4 ????????
  • ?????(????)
  • ????????,???????, ??????CoA?2C??,
    ?CoA?????, NADPH??, ?????????????,
    ????,??C18-C24????
  • ???
  • ???ß-??????????CoA???,
    ???CoA?2C??, ?CoA?????, NADPH??, ?????????????,
    ????,??C24-C26????

32
3.5 ?????????
?????????????????
?????????TG ??????
33
??????????TG ??????
34
4 ???????
????/????? (????) ?? ??????
???/????? (??)
35
??????????????
36
5 ?????
5.1 ?????
  • ????????,????,??????????????,??????????,????
    ?????????????????
  • ?????????????????????,???????
  • ????????????(????)????(????)?????????
    ??????

37
???
???
???????
38
5.1.1 ??????? (???????????)
????
????
S-??????(SAM)?????????????
?? ????????????????
39
5.1.2 ???????
40
5.2 ?????????????
???
????
????????
41
6C
4C
????????
2C
5C
HMGCoA???
27C
30C
15C
42
  • 70-80?????????,????????????????????
    ?????,?????CoA?????????????18?????CoA,?????-??????
    ????????10???NADPH,??ATP?????????????????
  • HMGCoA??????????,??????????

43
???????????
  • ??????-??????????,?????
  • ???????????????????
  • ?????????????????,??????
  • ??????????????????,????????
  • ?,??????????
  • ????????? ???????????????
  • ?????????????????????????
  • ???????????????????????
  • ???7-????? ???????????????D3

44
6 ??????????
  • 6.1 ??
  • ????,???,??????
  • ?????(FFA)
  • 6.2 ??????????(lipoprotein)
  • ???????????????????????????,???4????FFA-???
    ???????????????

45
6.3 ???(lipoprotein)
????
???????
46
  • 6.4 ????(Apolipoprotein, Apo)
  • ??????????????
  • ??????a-?????
  • ??A?B?C?D?E??,?20???
  • ?????????
  • ???????????????
  • ??????????

47
6.5 ?????????
  • ??(CM)
  • ? ?TG,??,???,ApoB48,A-I, A-II, ?????
  • ?,???
  • ??????????,?????????
  • ????????????????????????????
  • ???????(VLDL)
  • ? ?TG,??,???,ApoB100,ApoE, ?????
  • ?,???
  • ???????
  • ???????????????????????

48
  • ??????(LDL)
  • ? ??????????,ApoB-100,????,?????
  • ?????????CM????VLDL????????
  • ???????????????????????,?????
  • ????
  • ??????(HDL)
  • ? ??????????,??????,?????
  • ?????,??
  • ?????????????,??????????????

49
????????????????????????? ?????????????????? 1)?
???? 2)????????? 3)????HMGCoA??? 4)?????????????
(LCAT) 5) ??LDL?????
50
??
??
????
????
???????
51
????
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