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Anti stat5b

Manufactured by Santa Cruz Biotechnology

Anti-STAT5B is a laboratory reagent used in scientific research. It is a highly specific antibody that binds to the STAT5B protein, a transcription factor involved in cellular signaling pathways. This product can be used in various experimental techniques, such as Western blotting, immunoprecipitation, and immunohistochemistry, to detect and study the STAT5B protein.

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4 protocols using anti stat5b

1

STAT5B Binding to Cis Promoter

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ChIPs were performed as previously described (Jensik and Arbogast, 2011 (link)). Briefly, stable PRLR-HA CAD
cells were treated with vehicle or rPRL for 1 hr prior to cross-linking with
formaldehyde. ChIP was performed using 1 µg Anti-STAT5B (Santa Cruz
Biotechnology; G-2) or normal mouse immunoglobulin (mIgG; Santa Cruz
Biotechnology). ChIP samples were analyzed by PCR using mouse
Cis −184 and +4200 PCR primer sets (Basham et al., 2008 (link)). PCR products were
separated on acrylamide gels and stained with ethidium bromide.
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2

Comprehensive Antibody Inventory for Immunochemical Analyses

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The following primary antibodies were purchased: mouse anti-STAT5 (cat# sc-74442), rabbit anti-STAT5 (cat# sc-835), anti-STAT5A (cat# sc-271542) and anti-STAT5B (cat# sc-1656), anti-BrdU (IIB5) (cat# sc-32323) were from Santa Cruz (Dallas, TX); anti-MCM2 (cat# 12079), and anti-pSTAT5(Y694) (cat# 4322) were from Cell Signaling (Danvers, MA); anti-STAT5A/b pan-specific antibody (cat # AF2168) and normal IgG rabbit (cat# AB-105-C) were from R&D Systems Inc (Minneapolis, MN); anti-MCM5 antibody (cat# 2380–1) was from Epitomics (Burlingame, CA); anti-B19V capsid (cat# Mab8293) was from Millipore (Billerica, MA); anti-BrdU (clone B44) was from BD (Franklin Lakes, NJ); and anti-β-actin (cat# A5441) was from Sigma; anti-MCM3 (cat# A300-124A), anti-MCM5 (cat# A300-195A; for ChIP), and MCM7(cat#A300-128A) were from Bethyl Laboratories (Montgomery, TX); anti-ATM(pS1981) (cat#ab81292) were from Abcam (Cambridge, MA); and anti-ATR(pT1989) (cat#GTX128145) from GeneTex (Irvine, CA). Rat anti-NS1 polyclonal antibody was prepared in our lab as previously reported [25 (link)].
Horseradish peroxidase (HRP)-conjugated anti-mouse and anti-rabbit secondary antibodies were purchased from Sigma, and fluorescein isothiocyanate (FITC)-, Texas Red-, and Dylight405-conjugated anti-mouse, anti-rat, and anti-rabbit secondary antibodies were all purchased from Jackson ImmunoResearch (West Grove, PA).
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3

Verifying STAT5b Expression in DF-1 Cells

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To verify STAT5b expression in DF-1 cells after transfection, Western blotting was performed. Whole-cell lysates were made from both untransfected DF-1 cell cultures and DF-1 cells transfected with either RCAS-STAT5b or RCAS-PDGFB. Sodium dodecyl sulfate polyacrylamide gel electrophoresis was used to fractionate 10-µg protein samples using gels with 10% polyacrylamide. Samples were transferred to a polyvinylidene difluoride membrane and probed with anti-influenza hemagglutinin antibody (1:1000; F7; Santa Cruz Biotechnology, Santa Cruz, CA) to verify PDGFB expression and with anti-STAT5b (1:1000, Santa Cruz Biotechnology) to detect total STAT5b expression. Goat anti-rabbit immunoglobulin G (1:2500; Santa Cruz Biotechnology) was used as the secondary antibody. The ECL Plus detection kit (GE Healthcare, Waukesha, WI) was used per the manufacturer’s instructions to develop the blots.
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4

Electrophoretic Mobility Shift Assay for c-Jun

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EMSA was performed as described [28 (link)]. Nuclear extracts of the control and c-Jun expression plasmid transfected HeLa cells were added to binding buffer, and the mixture was incubated for 10 min at 25°C. Digoxigenin-labeled double-stranded oligonucleotide (Table 1) was added in the absence or presence of an unlabeled competitor, and the binding mixture was incubated for 30 min at 25°C. For some experiments, anti-c-JUN or anti-STAT5B antibodies (Santa Cruz Biotechnology, Inc. Santa Cruz, CA) were added and incubated for 10 min. The mixture was kept on ice for 10 min and loaded onto the 4% polyacrylamide gels in 0.5x TBE. The gel was run in 0.5x TBE buffer at 100 V for 70 min. After electrophoresis, the gel was transferred onto a Hybond-N+ membrane (GE Healthcare UK Ltd.) and cross-linked by UV. Detection was performed as described [28 (link)].
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