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P65 sc 372

Manufactured by Santa Cruz Biotechnology
Sourced in United States

The P65 (sc-372) is a protein-specific antibody produced by Santa Cruz Biotechnology. It is designed to detect the expression of the p65 subunit of the NF-kappa-B transcription factor complex. The antibody can be used for applications such as Western blotting and immunohistochemistry, but its detailed applications and intended use are not provided.

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4 protocols using p65 sc 372

1

Western Blot Analysis of Signaling Pathways

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Whole-cell lysates were prepared in RIPA buffer (50 mM Tris-HCl pH 7.5, 150 mM NaCl, 1% Nonidet P40, 0.5% sodium deoxycholate, and 0.1% SDS) supplemented with cOmplete Protease Inhibitor Cocktail (Roche). Proteins were separated by electrophoresis in either 10% Criterion XT Bis-Tris Protein Gels (Bio-Rad) or 4-20% Mini-PROTEAN TGX Precast Protein Gels (Bio-Rad) and the resulting bands were transferred onto Immobilon-P PVDF Membrane (Millipore). All blots were incubated overnight with primary antibodies and developed with the Pierce ECL Western Blotting Substrate (Thermo Scientific). The antibodies used in this study included antibodies (from Cell Signaling Technology) against JNK1 (3708), pc-Jun (2361), c-Jun (9165), pATF-2 (9221), ATF-2 (9226); pIκBα (9246), pp65 (3033), pp38 (9211), p38 (9212), pERK1/2 (4370), ERK1/2 (4695), pSMAD2 (3101), SMAD2 (5339), pSMAD3 (9520), SMAD3 (9523), SMAD4 (38454), Myc (2040); as well as IκBα (610690; BD Biosciences), p65 (sc-372; Santa Cruz Biotechnology), and β-actin (AM1829B; Abgent), and the following secondary antibodies: Amersham ECL Mouse IgG, HRP-linked whole Ab (from sheep) (NA931; GE Healthcare Life Sciences) and Amersham ECL Rabbit IgG, HRP-linked whole Ab (from donkey) (NA934; GE Healthcare Life Sciences).
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2

Western Blot Analysis of Signaling Proteins

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Protein extracts were separated on SDS–PAGE and were transferred to a PVDF membrane (IPVH00010; Millipore). SuperSignal® West Pico Chemiluminescent substrate (34080; Thermo) was used to visualize the signal. The membranes were reprobed after incubation in stripping buffer (21059; Thermo). Antibodies against the following proteins were used: p65 (sc-372; Santacruz), RelB (4922; Cell signaling), c-Rel (sc-71; Santacruz), Tubulin (T6074; Sigma), Phospho-KAP-1 (A300-767A; Bethyl) and p53 (2524; Cell signalling).
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3

Immunofluorescence Analysis of p65 and Phospho-p65

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MEFs were seeded on glass coverslips, washed with PBS and fixed in 4% paraformaldehyde. Following fixation, the cells were washed with PBS, permeabilised for 10 min in 0.2% Triton X-100/PBS, blocked with 10% goat serum in PBST (0.1% Tween 20/PBS) for 1 h, and then incubated with a primary antibody, p65 (sc-372; Santa Cruz Biotechnology, Inc.) or phosphor-p65 (#3033; Cell Signaling Technology, Inc.) at 4 °C overnight. After three times wash with PBST, the cells were incubated for 1 h with secondary antibody, Alexa Fluor 488-conjugated anti-rabbit IgG (A11070; Thermo Fisher Scientific Inc., Waltham, MA, USA), and then washed three times with PBST. DNA was counterstained using DAPI (D9542; Merck KGaA). Coverslips were mounted onto slides using ProLong Gold Antifade Mountant (P36934; Thermo Fisher Scientific Inc.). All images were taken by a confocal microscope (FV1200; Olympus Corporation, Tokyo, Japan).
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4

Comprehensive Western Blotting Assay

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Western blotting was performed as previously described [25 (link)]. Primary antibodies were as follows: pP65 (Ser 536) (sc3020), pP65 (Ser 276) (sc101749), P65 (sc372), COX-2 (cyclooxygenase 2) (sc1747-R), inducible nitric oxide synthase (iNOS) (sc7271), AKT (sc1618), pAKT (Ser 473) (sc7985), inhibitor of kappa B alpha (IKBα) (sc847), pIKBα (Ser32) (sc8404), inhibitor of kappa B kinase alpha/beta (IKKα/β) (sc7607), β-Actin (sc47778), and transcription factor IIB (TFIIB) (sc225) were purchased from Santa Cruz Biotechnology (Dallas, TX, USA). pIKKα/β (Ser 176/180) (#2697s) and PTEN and phosphoinositide dependent kinase 1 (PDK1) Ab sample kit (#9652) were purchased from Cell Signaling (Beverly, MA, USA).
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