??? ????? - PowerPoint PPT Presentation

1 / 69
About This Presentation
Title:

??? ?????

Description:

– PowerPoint PPT presentation

Number of Views:58
Avg rating:3.0/5.0
Slides: 70
Provided by: acad46
Category:
Tags: folding

less

Transcript and Presenter's Notes

Title: ??? ?????


1
??????
  • ???????????
  • ?????? ?????????? ????????? ?? ??????
  • ?????????????

2
??? ????? ??????
  • ??? ???????????
  • ?? ???????
  • ?? ?????????
  • ?? ??????????????????

3
?????????????? ????? (????????/????????????)
  • ??????????? ????? ????????????? ????, ???????
  • ?????????? ? ???????????? ??? ?????????? ????? ??
    ??????????? ?????? ?????
  • ????? ????????? ?????????? ? ??????????, ????????
    ?????????

4
Derbyshire et al., PNAS, 94, 11466-11471(1997)Gen
etic definition of a protein-splicing domain
Functional mini-inteins support structure
predictions and a model for intein evolution
??????????? A ?? Mycobacterium tuberculosis
(790 ?.?.) ???????? ?????? (440 ?.?.) ?????????
???????, ?????????? ???????????? ?????????
?????????? ?? ????????????? ???? (???????
????????? ??????????) ?????? ???????? ?????
?????????????? ???????????
5
?? ???????? ??????????????????? ? ??????? ?????
?????????? ?????????, ? ?.?. ???????? ?
?????????????? ??? ?????????? (1VDE), ????
????????? ???????? ? ???, ??? ?? ??? ??????
?????????? ???????? ?????? ??????. ??? ???? ??
???????? ????????? ???????? ?????, ???????
????????? ?? N-????????? ? C-????????? ????????
????????????? ????
6
??? ???????? ???????? ?????? ??????? 21 ?????????
????? ???????, ? ??????? ??????? ??????
?????????? ??????? ?????????????
????. ?????????? ???? ???????? ? ??? ???????
????? (????????????????, TS) ? ?????????????????
? E.coli ?????????? ??????????? ?? ???????
????????? ????? TS (??? ??????? ???????)
7
????????? ???????? ????????? ?????????? ? ???
???????, ????? ????????? ??????? ?? ??????????
?????? 96 ? ????????? 35 ?.?. ????? ???????
?????????????? ????? ??????????? ?????????
?????????? ??????? ?? ???????? 1-96 ? 406-440
(????? 131 ?? ?????? 440)
8
????????? ????????????? ????? PI-SceI ??????
???????????? ?? ??????? (PDB ??? 1VDE)
???????????? 186-405
?????? 1-181, 416-454
9
??????? ???????? ??????? ?? ????? ?? ?
?????????.????? ????????????
10
?????????????????? ??????? ?????????????.??
???? ??????????????? ???????? ??????????? ????
?????? ?? ?????? ??????, ????????? ? PFam
???????? ????????? ????? PI-SceI
???????? ????????? ??????????????? ????? VMA1
???????? ????????? ??????????????? ?????
TFP1(??????????? ?? ????????)
11
???????????? ????? (??????????????
??????????????????)
  • ??????? ??????????? ??????? ????????????? ????,
    ???????
  • ?????????????? ??????????? ????????? ??????
    ????????
  • ??????? ? ????????????? ??????? (domain shuffling)

12
?????, ?????????? ??? ???????????? ??????
?????????? ? OAR ????? (N-???????? ??????? ??
????????)
13
??????????? ??????? ?????????????? ? ????????.
  • ?? ???? ????? ?????? ?? 65(!) ????????? ????????
    ???????????? ???????????, ?????????????? ? ?????
    Pfam

??????????
?????? ????? ? ??????????
Lim ?????? ? ??????????
??????????, ???????????? ?????????? ???????
POU ????? ? ??????????
??? ???????????
PBX-????? ? ??????????
14
OAR- ?????, ?????????????????? ? ?????????
????????????? ???????????????? ????????
  • ???????????????? ???????????
  • ? ????????????? ??????? ???? ?? ???????
  • ???????? ??????????? ?????? - ??? ??????????
    ??
    ?????? ??????? ????????
  • ??????? ?? ???????????

15
?????? ????????????????, ??????? ??????
??????????????? ??? ????? ???????????
????????????
16
??????????? ?????(?????????????? 3D ?????????)
  • ???????????? ? ???????????? ????? ?????,
    ??? ??????????? ???????, ???????
  • ???????????? ???? ????????? ? ??????? ???????
    ?????
  • ??????????? ??????????? ????

17
(No Transcript)
18
??????????? ???????????????? ?????? ?????????
?? ???????????? P22 (PDB ??? 1QAR)???
???-?????? ?????? ??????? ?????? ????????
?????????, ? ?? ???? ? ??????????????? ?????
???-??????????? ?????
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
  • ????????????
  • ??????????
  • ????????

23
? ??????????? ?????? ?????????? ??? ??????
fingers, palm, thumb
24
?????? ??????????? ????? ???? ??????? ??????????!
  • ?? ?? ??????

25
?????? ????? ?? ????????????????? ??????? PAX5
???????? (PDB 1K78)
19-81A
82-90A
91-142A
???????????? ????? (PAX ? Pfam) ???????? ???
??????????? ?????? (126 ?.?.)
26
????????????? ???? ????? ??????????? ???????
????? ????? ????????? (- ?????????? ?????
????????, - ????????? ?????????????
??????????????, - ?????????? ??????? ??????????
???????? ????? ???? ???????? ????????
????????? ????????? ?? ? ????!)
27
N-???????? ??????????? ????? ??????? ??????
?????? ??????????? ? C-????????
????? N-????????
??????? C-????????
?????????? ?? ???? ????????, ????? ??14 C?
?????? Rmsd 0.5 Å
28
??????????? ?????? ??????? ?????? ?????????
??????????? ?? ???
29
????? ?????????? ???????? ???????????????????
???? ??????????? ??????? ????????????? ??????
PAX/Prd ?? ????? PAX5 ????????
???????????? ???????? ??????????????????? ??
???????????
30
??? ???? ?????????????????? PAX/prd ???????
????????????? ?? ???? ?????
31
??????????? ??????
  • ?????? ??????????????

32
?? ??? ???????? ??????
  • ????? ????? ??????????? ??????????? ???? (??????
    ???????? DETECTIVE Swindells, 1995)
  • ????? ??? ????? ?????, ?????? ??????? ?????
    ????????? ?????????????? ????????, ? ?????
    ???????? ???? ????????? (?????? ????????
    DOMAK, SiddiquiBarton, 1995)

33
SiddiquiBarton, 1995 DOMAK
?????? ????, ?? ?????? ? ?????!
  • ??????????? ????? ??????? ?? ?????? ??? ????
    ??????????? ???????? ????????????? ????
  • ????? ????????? ???????? ?????? ?????? ?????? ???
    ????? ??????????? ?????????

34
????????????
  • ??? ??????? ???????????? ???? ?????????? ?????
    ???? ?????? 5Å
  • ???? ????? ?????? ?? ??? ?????, A ? B, ??
    ???????????? ?????? ?????????????

SplitValue(intA/extAB)(intB/extAB)
intA ????? ??? ?????????????? ???????? ??
A intB ????? ??? ?????????????? ???????? ??
B extAB ????? ??? ?????????????? ????????,
???? ?? A, ? ?????? ?? B
35
??????. ????????? 1CD4. ????? A N-?????
????????????? ???? ?? ??????? i ????? B ??
(i1) ?? C-?????
?????? ??????????? ??????? ????????????? ??
?????? ?????????? ???????
36
??????? ?? ??????? 97 (??? ?? ???????)
37
? ????????? DOMAK ??????????? ?????????
?????????? ?? ????? A ? B
38
????????
  • ? ?????? ???? ??????????? ?????? 1 ? 2.
    ?????????? ?????????? ? ?????? ????????
  • ? ?????????? ???? ??????? ??????????? ?? ??
    ?????????. ? ??????, ????? ????? ??????? ?? ????
    ?????????, ??????????? ????? ????? 3.
  • ???????? ??????????????? ? ??????????? ??
    ????????? ????????
  • MDS ??????????? ?????? ?????? (? ?????
    ????????)
  • MSS - ??????????? ?????? ????????
  • ????????? ????????? ????????????? ??? ?????????,
    ????? ??????? ????? MDS ? MSS
  • ????????? ?????? ??????????? ?? ????????????
    ???????????? ????????? ? ????

39
Swindells, 1995DETECTIVE
????? ?????, ??????????? ??????!
??????????? ?????? ????? ????? ???? ???????????
????.
40
(1) ?????????? ????????? ??????????
????????????????? ????????????????? ????????
  • ?????????? ???????, ???????
  • ????? ????????????? (lt7)
  • ??????????? ???????? ??? ?????
  • ????? 75 ????????? ?? ?????? ? ??????? ???????
    ???????????????? ??? ???????????
  • ????????? ????????? ????????? ???????
    ?????? ?? ????? vdW ???????? 1 ????????
  • ??????????? ????????? ????????? ???????
    ?????????

41
??? ??????? ?? ?????????? ?????????
?????????????????? ?????????? ???? ?????
??????????? ?????????? ????????? ???????????
????? ????????????? ?????????? ?????????
42
???????? ????
  • ??????? ?????????? ???????
  • ????? ????????? ???????, ???? ???????????????
    ??????? ?????????? ???????????????
  • ??????? ?????????? ?????, ?????????? 5 ??? ?????
    ????????, ?????????? ???????????? ??????

43
???? ??????????? ????????? (??????)
44
??????????? ???? ??? ?? ??????! ??? ?????????
??????? ??????????? ???????????? ?????????
??????-???????
45
  • ???????? ??????????????? ?? ??????? (??. ???.)
  • ??????? 3 ???????? 1?, 2? ? 3?
  • ???????, ?????????? ?????? ??????????
  • ???????? ?????? ??? ?? 5? ???????? ??????????
  • ??????? ?????????????????? ????????
  • ?????????? ?????????????????? ???????
    ?????????????? ?? ????????? ? ??????????
    ??????????? ????
  • - (8) ????? ?????????, ??????? ? ?????????????
    ???????

46
??????????? ????????????? ???????
  • SCOP (Murzin, Benner, Hubbard, Chotia, 1995)
  • CATH (Orengo et al., 1993, 1997)
  • FSSP (HolmSander, 1993)
  • ??????

47
Structural Classification of Proteins, SCOP
  • ?????????? ????????? ???????
  • ?????????? ?????????????

48
  • ?????
  • ??????? (fold) ??????? ?????????
  • ?????????????? ??????????? ????????? (?)
  • ????????? ???????? ??????????????????? ?/???
    ??????? ???????????????? ???????????? ?????
  • ????? ?.?. ???????????? ???????? ??????
  • ??? ?????????? ?????

49
(No Transcript)
50
????????
  • ?????-?????????? ?????? (202 ?????)
  • ????-??????????? ?????? (141)
  • ?????/???? ??????????? ?????? (a/b)
    (130) (????-?????-???? ??????????? ???????)
  • ????????? ?????? (ab) (260)
    (??????????? ????? ?????????? ? ????-???????????
    ???????)

51
?????????????
  • ????????????? ????? (40) (??????? ??????)
  • ?????????? (42) (????? ?????? ????????
    ???????)
  • ????????? (72)

??????????????? ??????? (6) ??????
?????????? (22) ???????,
????????? (111) ????????????? ?????
(41)
52
??????? ????? a/b ? ab
  • a/b - ??????? ? ???? ??????
  • ???????? ???????
  • ????? ??????? ????????? ??????? ??? ???????? ??
    ???. ????

1TPH Triosephosphate isomerase from Chicken
(Gallus gallus) 1TPH
53
??????? ????? ab ? a/b
ab - ??????? ? ???? ????? ??? ????? ?????????
- ????? ??????? ???????? ???? ????????? ???? -
?????? ?-?-? ??? ?? ?????????? ?????? ???????????
?????
2ACT. ACTINIDIN (SULFHYDRYL PROTEINASE)
54
????? ??????? (????). ??????? ??????????
????????????? ????? ??????????, ?? ???-?? ????? ?
???????????? ????????? ????????? ?????????
?????????????? ??????? ????? ?????????
55
????? ????????? ? ???? ??????? ???????????????
  • ??????? ????????????? ????????? ?????????
    ????????? ??? ???????
  • ?????????????? ???????? ????????? ?????????
    ????????? ???????????? ? ???????????? ????? ?????
  • ???-?? ??? ????? ??????? ??? ?????????? ????????
    ???????????? ????????? ????????? ????????? ?? ??
    ???????? (?????, ??? ?? ?????? ???) ??????????
    ??????????? ????????????

56
????????? ????????? ???????? (1CF9, C-????????
?????) ? ???????????? (1AG9)
57
????????? ????????? C-????????? ?????? ????????
1CFG
????????? ????????? ???????????? 1AG9
58
S4 H2 S5 - S1 S2 S3 H2 S2 H1 S1 - H1
S4 H2 S5 h1 - - S3 H2 S2 H1
S1 S1 H1 h1
59
SCOP 1.67 release 24037 PDB Entries (15 May
2004). 65122 Domains.
60
Class Architecture Topology Homologous
superfamily, CATH
  • ????? ??????? ?? ?????? ????????????? ???
  • ????????????? ??????????? ???? ??????????
  • DETECTIVE (Swindells, 1995),
  • PUU (Holm Sander, 1994)
  • DOMAK (Siddiqui and Barton, 1995).
  • ??? ???????????? ??????????? ??????????
    ??????? ? ??????? ?? ?????????

61
????????? ????????????? ?????????????? (????????
SSAP, Taylor Orengo 1989).??? ???????
????????? ??????? ????????? ???????
62
CATH ?????? ?????????????
  • ????? ???????? all-alpha, all-beta, alha-beta
  • ??????????? ??????? ????????????????
    ???????????? ????????? ????????? ????????? ???
    ????? ?? ??????????????????
  • ????????? (???????) ??????? ????????
    ???????????? ????? ???? ? ? ????????????
    ????????? ????????? ?????????
  • ?????????????? ???????????????? ??? ??????????
    ???????????? ??????
  • ????????? ??????? ?????????????????? (gt35
    identity ? ??????????? ??????? ????????? gt60
    ?????)

63
(No Transcript)
64
? ?????? ??????????? ????????????? ????
???????
CATH ??? (?!!!) ?????? (?!!!) (??????? ?
???????) ? ????????? ??????? ?????????????? ? ??
?????????? ???????? Clostridium Perfringens (PDB
??? 1PFO)
??? ??? ????? ?????????? ?!
(? ???? SCOP ??? ???? ?????)
65
SCOP ???? ?????????? ??? ??????????????? ???
???? ??????????? ????? ?????? all alpha (???)
(????? - ???????????????? ?????? ?? Listeria
monocytogenes, ???????????? ???????? ????
?????????????)
???????????? ?????? (?)
? ????????? ?????? ???????? ?? ??? ??????
66
http//www.bio.cmu.edu/courses/03231/ProtStruc/Pro
tStruc.htm
67
DALI, Distance matrix ALIgnment
68
??????????? ??????
69
????????? ? ?????????????? ????????? ??????
Write a Comment
User Comments (0)
About PowerShow.com