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本帖最后由 细胞海洋 于 2011-3-12 17:58 编辑
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Introduction 1# Y2 x, u7 L/ K: H6 h1 n' T
Western Blotting Overview 2-3& |' ~9 c* T$ g' `5 n/ ~
Step 1 – SDS-PAGE . U2 L ?( f) j7 ]6 l# J
Thermo Scientifc Precise Protein Gels 4
5 \ H* q1 b6 t' {' g, k5 Q) p Molecular Weight Markers 5-6
; P9 o; c4 t q4 S/ C: @Step 2 – Electro-Transfer * U% }) a0 U) G% \9 V: y
Thermo Scientifc Pierce Fast Transfer System 7 ; q5 s6 T, o7 v' |$ Y9 J
Transfer Buffers 8 6 ]! D- y1 ~+ q+ b5 ~3 u2 ]. Z
Filter Paper for Blotting 8 . C. B) Z$ G" U' `9 H+ M$ \" M1 I
PVDF and Nitrocellulose Membranes 9
9 \3 d7 t# S X: e/ C1 o) `. p, [ Thermo Scientifc Pierce Protein Stains 9 & o: A5 |- @% I, u, o7 p# ]* N+ G0 H; F
for Membranes y$ l/ W( ]- T8 Z8 _' M8 s
Antibody Extender Solution NC 10
& m* ~- Y* e* Q: ~' @/ q; Z Western Blot Signal Enhancer 11" J$ a1 z. f& j6 i3 A) s7 ]1 s2 U' N
Step 3 – Blocking
+ K* z9 W, U* `& a; | Introduction 12
( W/ O$ i2 E9 c+ H, E w" s; h Blocking of Nonspecifc Binding Sites on 12
& i7 f6 T: S% P, y# L# E Transfer Membranes , B! i+ S% N' l) I0 _
Blocking Buffer Optimization 12-13
: B8 Z* ]; A* b( a" @- p4 l1 A4 l Blocking Buffers 13-163 H. `, o* t/ b0 I
Step 4 – Formulate Wash Buffers 6 J- h. d0 c* |( I
Washing the Membrane 17
( }: F( ^/ J5 G Wash Buffers 17; W- c3 |4 R& d9 W4 z% o! V+ C
Step 5 – Detection Reagents
+ J) K7 U0 `+ s0 ^/ S) g- @4 m Validated Primary Antibodies 18-19 9 L: s- J% i4 Z/ |1 [* U$ P
Affnity-purifed Antibodies 20 ; m+ b7 m! u6 ?- {1 g) J9 i2 D
Stabilized HRP Conjugates 21
/ m: w$ L/ s; M# D( M i4 r: _! r Thermo Scientifc DyLight 22
6 B" x8 c, J# k7 j Fluor Conjugates
/ A% d0 z# k( ^" i0 S+ p Conjugate Stabilizer Solutions 22
6 _5 W* j! u0 W: E2 d8 c$ ? Thermo Scientifc DyLight-labeled Highly 23
" W: Q& j. j) g* c Cross-Adsorbed Secondary Antibodies 7 J% T9 U" j0 w) |
Antibody Storage and Stabilizer Solutions 24 % [, F" t, H5 I$ S
Secondary Antibody Ordering Table 25-26 8 _4 ]4 z1 x5 q6 q
Thermo Scientifc Clean-Blot IP 28-29
# t! r0 J" r; f' S5 @ Detection Reagents % u0 L9 l+ q: U' |# e7 K3 |$ p! U
Protein A, G, A/G and L Conjugates 30 ! g$ J/ b( }1 P' |) S3 P9 g
Thermo Scientifc NeutrAvidin, Streptavidin 31-33 & N. U$ A7 k5 i [9 l1 e1 W+ i' g
and Avidin Conjugates
# }5 k- i' g" T& W: `: R7 q' ?6 uStep 6 – Enzyme Substrates " N8 ]1 a! C2 u6 s3 j
Chromogenic Substrates 34-35 ! u* [( L6 r- s- q. p1 z- B( y
Thermo Scientifc Chemiluminescent Substrates 36-43 7 ~( i' M' X- R) v) ^9 P6 |
Pierce ECL Substrate 37
4 _" ]3 v6 m1 T! @; e2 e" x8 m SuperSignal Chemiluminescent 38-42
5 m' L" ~1 g. J! } Substrates and Kits
3 E- c+ I8 w# D/ y0 ? Lumi-Phos™
) O5 r4 i" G/ F6 h Chemiluminescent Substrate 43
. ]$ {, S2 N$ X1 L! x& H+ w+ _ Quick Reference Substrate Guide 43 ! F, G4 g0 t5 N1 b6 P _) a4 S
Fast Western Blotting Kit 44
- D F0 n1 n+ j0 a5 d9 aSpecialized Western Blotting Kits 45-48
/ s* B2 F: X) Y0 E) j" x( ~6 z Thermo SuperSignal West Pico HisProbe Kit 45 0 ?$ N' ~) k% A: U$ o: ~! f4 F: ?
Pierce O-GLcNAc Western Blotting Detection Kit 46
0 M. V3 q. y5 j( f Thermo Scientifc DyLight 549/649 46-47 % C7 d& Z! c: \! c6 F. S
Western Blotting Kit 5 F" [( j8 }. I/ c+ v$ o( f# \
Thermo Scientifc DyLight 680/800 Near Infrared 47 " A; |! h7 W, [" v
Western Blotting Kit 4 ~; d h6 V) Y5 q) R! r
Thermo Scientifc Active GTPase Pull-Down 48
9 l' N3 \7 T3 N% K4 I9 ^9 k and Detection Kits
; _: m, k0 V) W" t3 FFar-Western Blotting 49
& V; ^) |3 J# l3 M4 VIn-Gel Western Detection 50-51 $ f. c* R# g: {2 o z. p6 w
Thermo Scientifc Pierce In-Gel 51
% u" K' T4 S! @6 L1 n2 W$ O Chemiluminescent Detection Kits3 p# W: r$ Z0 ?
Step 7 – Film
P$ ^/ I& W6 l$ b6 T8 J Thermo Scientifc CL-XPosure Film 52% T( O$ e$ O2 @7 s4 x5 J
Step 8 – Stripping Buffer
( e7 g1 |& C/ e/ k4 G- COptimizing the Signal-to-Noise Ratio 53-58 ) W Z" m4 A6 v6 V4 J% n! e* Y4 C7 I
Protocol for Stripping an Immunoblot 54
8 C A0 @6 d) n0 \5 X Thermo Scientifc Restore 55
, N7 ?9 k6 J% n8 K* Q Western Blot Stripping Buffers
5 L+ P+ y) ]9 R! e% N Thermo Scientifc Restore PLUS 56
( u0 T6 j( a" N Western Blot Stripping Buffers
- |# [+ j- K/ T) V. k# e Thermo Scientifc Pierce 57-58 $ k6 e! G5 S& Z4 }( [
Background Eliminator
; i/ D0 S/ {6 _' G" |Troubleshooting Guide 59-69
" _" c' j6 R# p% t3 D$ Q& | Blotting with Chemiluminescence 59
+ [. I3 i! H/ h Optimizing Antibody Concentration 60-63 * M$ s4 z% B H8 S) \
Problem Guide 64-67
& _1 P% i$ O% Q4 t Full-Length Western Blotting Protocol Using 68-69 6 o" ~- N& Y$ W6 `/ M j
Chemiluminescent Substrates
' A- ?0 a/ q5 nRecommended Reading 70
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