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Introduction 12 ` z$ d( i" K
Western Blotting Overview 2-3
" |. J P# m7 LStep 1 – SDS-PAGE
! f* ]6 r+ T9 H3 T2 \2 C Thermo Scientifc Precise Protein Gels 4
0 t _) T' V2 [% D, L. q Molecular Weight Markers 5-6
; n( @* q$ P# T+ n2 d# sStep 2 – Electro-Transfer
4 ^9 r4 u, g: w2 L ^- K1 X6 ~! J2 f Thermo Scientifc Pierce Fast Transfer System 7
0 @6 A; |9 U H. F& }. E+ u* f- l Transfer Buffers 8 " H3 S" `5 H- W3 o4 ` s
Filter Paper for Blotting 8
: W& e/ [1 u1 t PVDF and Nitrocellulose Membranes 9
2 j- q9 q7 L5 r7 u Thermo Scientifc Pierce Protein Stains 9 ( Q$ L# d) \) L8 y: ^
for Membranes ; o T: a" U7 P
Antibody Extender Solution NC 10 0 o) U; g, l- C7 j! E L
Western Blot Signal Enhancer 11
1 s6 z, t$ R3 Q2 BStep 3 – Blocking + C; i& m5 K) x. U! D
Introduction 12
% b1 c4 L5 V3 U. a# w' m Blocking of Nonspecifc Binding Sites on 12 . a7 a |7 D _: w; v u* T- S
Transfer Membranes , m5 C/ ] V' E$ C# t
Blocking Buffer Optimization 12-13
5 a; Q! Q' E7 f" |5 r; Z Blocking Buffers 13-167 L8 K5 m; d1 g. ]" R. @: Z; T
Step 4 – Formulate Wash Buffers & \* \1 A1 K& e6 |) ?' C. M; D
Washing the Membrane 17 : c' Q2 J9 t# b# Q9 G0 E
Wash Buffers 17
; t% e3 _' @. D. h) h; aStep 5 – Detection Reagents
- x2 ^9 ]- p) l8 {, |8 X9 \- X: D) i Validated Primary Antibodies 18-19 4 _6 V: C8 Y/ H; x7 a5 i
Affnity-purifed Antibodies 20
6 j. a( S6 B7 e- T4 F. F0 e Stabilized HRP Conjugates 21 - u2 i9 D% z* z( a, P- u7 k1 |
Thermo Scientifc DyLight 22 ! p, z5 {0 W. O+ a' a3 T
Fluor Conjugates , j4 A5 ` i9 ?( a- p
Conjugate Stabilizer Solutions 22
/ [: o1 ^" k2 M7 b" X! } Thermo Scientifc DyLight-labeled Highly 23 5 i! e2 q# o: L6 R+ T: L& p
Cross-Adsorbed Secondary Antibodies + C( r( V$ r' Z4 P# j
Antibody Storage and Stabilizer Solutions 24
4 t7 D6 ]& D/ n3 l Secondary Antibody Ordering Table 25-26 % [% ?8 T! D0 C- M7 H; f
Thermo Scientifc Clean-Blot IP 28-29
& }/ ?5 D' \5 ?$ F Detection Reagents + l& p7 c: z3 G& j/ a1 ^, u
Protein A, G, A/G and L Conjugates 30 & U3 X% J. F. t# }$ y
Thermo Scientifc NeutrAvidin, Streptavidin 31-33
: H+ K3 g6 R6 v' w. S4 ^ and Avidin Conjugates! i8 q/ a( \0 h% a
Step 6 – Enzyme Substrates 0 m2 H6 j/ A/ i9 q7 [: f) |+ r! X
Chromogenic Substrates 34-35 * m! }7 h" r9 @* `7 B. p o+ { k2 {
Thermo Scientifc Chemiluminescent Substrates 36-43 ! S: P; r) y2 e; \* B, V
Pierce ECL Substrate 37 * M* `' {3 p9 n% b
SuperSignal Chemiluminescent 38-42 3 z7 k r! t4 l( \- g: z
Substrates and Kits
) d3 ]$ I$ e& h/ f7 X" c! c Lumi-Phos™
0 u, U; z/ j4 j) s8 t Chemiluminescent Substrate 43 - H* C3 ]$ D8 j$ w9 L: E+ P
Quick Reference Substrate Guide 43 ; ]2 {7 ~% Y3 x7 H/ c, V. g
Fast Western Blotting Kit 44
C$ b: C5 u4 k5 o; B0 Y+ ?Specialized Western Blotting Kits 45-48
4 }+ v! |5 Y' j: N8 _! S Thermo SuperSignal West Pico HisProbe Kit 45
$ \7 r0 S9 Q$ j9 A Pierce O-GLcNAc Western Blotting Detection Kit 46 + ?; u/ v* { p0 k. J8 { p
Thermo Scientifc DyLight 549/649 46-47 ; r8 g5 l# \( G7 [
Western Blotting Kit ! }$ }' d# O# P3 D
Thermo Scientifc DyLight 680/800 Near Infrared 47 - k' A/ g7 D( {* F( Y
Western Blotting Kit
7 H! O; k+ z8 s Thermo Scientifc Active GTPase Pull-Down 48 9 k D0 ^/ d2 y6 T! e
and Detection Kits / W ]2 B3 n: m- j7 t
Far-Western Blotting 49
. B' d" I7 |$ V, hIn-Gel Western Detection 50-51
9 h. _! L8 i. W" Q Thermo Scientifc Pierce In-Gel 51
( q% u( p( y5 h% j) M% Y1 I Chemiluminescent Detection Kits$ J9 y0 i: r7 g8 u# P
Step 7 – Film 2 R" r3 j$ i+ G( w* \
Thermo Scientifc CL-XPosure Film 52
! ?5 N7 s) w( ?* j: DStep 8 – Stripping Buffer
) b5 p4 ^' m3 oOptimizing the Signal-to-Noise Ratio 53-58 : t+ E5 T7 f9 z+ H9 j
Protocol for Stripping an Immunoblot 54
2 `- W* [- G$ i; @& c0 J Thermo Scientifc Restore 55 8 p* b5 d u6 w9 C, w% o2 C
Western Blot Stripping Buffers # c7 s0 j) Z' O* y
Thermo Scientifc Restore PLUS 56 ) ^1 b" x9 ~; M' [7 e$ p
Western Blot Stripping Buffers
! X- g7 U. C9 G K1 f- F" P Thermo Scientifc Pierce 57-58
- `/ c4 ?8 c" i) |8 `# O Background Eliminator' D5 X! Y- i4 K# R9 i F
Troubleshooting Guide 59-69
7 Q! H. t2 d! ~7 f) P0 O0 | Blotting with Chemiluminescence 59
U' x* `: |5 ] Optimizing Antibody Concentration 60-63
0 c) p, g3 _5 d. ]' P7 Y, @" C4 C Problem Guide 64-67
9 U. {' I4 @) D: ? Full-Length Western Blotting Protocol Using 68-69
" [2 c$ j5 N# k& @9 Y Chemiluminescent Substrates 9 |* f! Q( s( T3 o; \9 z3 k
Recommended Reading 709 E2 r5 W x1 x4 q
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