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Anti flag antibody f1804

Manufactured by Merck Group
Sourced in United States

The Anti-FLAG antibody (F1804) is a laboratory reagent used for the detection and purification of proteins tagged with the FLAG peptide sequence. The antibody specifically binds to the FLAG epitope, which is a widely used tag for recombinant protein expression and purification. This antibody can be employed in various immunochemical techniques, such as Western blotting, immunoprecipitation, and immunoaffinity chromatography, to facilitate the identification and isolation of FLAG-tagged proteins.

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48 protocols using anti flag antibody f1804

1

Antibody-Mediated Analysis of TEX12 and SYCE2

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The anti-TEX12 (ab122455), anti-pericentrin (ab28144), anti-gamma tubulin (ab191114), anti-centrin 1 and 2 (ab11257) and anti-SYCE2 (ab107745) antibodies were obtained from Abcam and anti-FLAG (F1804) antibody was purchased from Sigma. Human TEX12 sequences, corresponding to amino acids 1–123 (full length) and 49–123 (core) and 45–123, 1–113, 1–91, 1–56 and 87–123, and SYCE2 were cloned into the pCMV-HA vector (Addgene Catalogue no 631604) for mammalian expression with an N-terminal FLAG-tag.
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2

Cell Line Cultivation and Antibody Characterization

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The cell line Hep-2, normal bronchial epithelium cell line 16HBE and embryonic kidney cell HEK293T were obtained from CCTCC, China Center for Type Culture Collection. The cell line KB-3-1 was provided by Dr. Zhesheng Chen (St. John’s university, USA). The cells were cultured at an moist atmosphere of 37 °C with 5% CO2 in Dulbecco’s modified Eagle’s medium (DMEM) containing 100 unit/ml penicillin, 10% fetal bovine serum (FBS), and 100 ng/ml streptomycin. Anti-E2F1 (3472) and anti-Survivin (2808) antibodies were obtained from Cell Signaling Technology. Anti-Ki-67 (2724-1) antibody was purchased from Abcam. Anti-Cyclin E (51-1459GR) antibody was from BD Pharmingen. Anti-Flag (F1804) antibody and anti-Flag (A2220) Affinity Gel were from Sigma-Aldrich. Anti-GAPDH (KM9002) antibody was from Tianjin Sungene Biotech. Anti-E2F1 (RLT1442) and anti-α-Tubulin (4777) antibodies were from Ruiying Biological.
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3

Comprehensive Protein Extraction and Analysis

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The cells were lysed in a buffer containing 280 mM NaCl, 50mM Tris HCL PH 8.0, 0.5% Igepal, 5mM MgCl2, 10% glycerol and 1X protease inhibitor (Roche), phosphatase inhibitor (Santa Cruz Biotechnology). Lysates were sonicated on ice for 8 minutes (2 cycles of 30s on, 30 s rest) and then mixed with 6× gel loading buffer and boiled for 5 minutes. Samples were then resolved on 10% or 4-15% gradient gels and transferred to nitrocellulose membranes. Membranes were blocked with 5% milk-PBS-Tween. Bands were detected by scanning blots with an LI-COR Odyssey imaging system using both 700 and 800 channels. The antibodies used for immunobloting included Anti-acetyl-α-Tubulin (SC-23950) and anti-α-Tubulin (SC-32293), which were purchased from Santa Cruz Biotechnology. Anti-HDAC6 (C0226) was from Assay Biotech. Anti-GAPDH (68795) was from Sigma Aldrich. Anti STAT3 (12640), anti P-STAT3 Y-705 (9138), anti P-STAT3 S727 (9136), and anti Acetil-STAT3 (2523) were purchased from Cell signaling. Anti PD-L1 (PA5-28115) was obtained from Thermo Scientific. Anti-FLAG (F1804) antibody was from Sigma.
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4

Immunoblotting Antibodies for Epigenetics

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Anti-H3K9me2 (ab1220) and H3K4me2 (ab7766) antibodies were purchased from Abcam (Cambridge, UK); anti-E-cadherin (sc-7870) ACTB(sc-47778) and HRP-conjugated secondary (sc-2031, sc-2004) antibodies were purchased from Santa Cruz Biotechnology (Texas, USA). Anti-FLAG (F1804) antibody was obtained from Sigma-Aldrich (St Louis, USA).
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5

Antibody Panel for Acetylation Analysis

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Anti-HDAC6 (C0226) antibody was purchased from Assay Biotech. Anti-FLAG (F1804) antibody was from Sigma. Anti-GAPDH (sc-25778), anti-Tubulin (sc-32293), anti-HDAC1 (sc-7872) and anti-acetylated tubulin (sc-23950) antibodies were purchased from Santa Cruz Biotechnology (Santa Cruz, CA). Anti-acetylated H3 (06-599) antibody was purchased from Millipore (Billerica, MA). Three different antibodies against HDAC11 were used; ab47036 from ABCAM (Cambridge, MA), ab3611 from Biovision (Milpitas, CA) for immunoblot and abH4539 from Sigma for ChIP analysis.
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6

Studying YY1, SET7/9, and LSD1 Methylation

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siRNA specifically targeting YY1 (GACGACGACTACATTGAACAA), SET7/9 (TAGGGCCAGGGTATTATTATA) or LSD1/AOF2 (CTGGAAATGACTATGATTTAA) was purchased from Qiagen. Anti-YY1 K173me1 and anti-YY1 K411me1 antibodies were generated by GenScript, Inc. Antigen (peptide sequence) used for generating anti-YY1 K173me1 and anti-YY1 K411me1 was CSGGGRVK(me1)KGGGKKS and CKSHILTHAKAK(me1)NNQ, respectively; anti-Flag (F1804) antibody was purchased from Sigma; anti-SET7/9 (07–314) was purchased from Upstate; anti-LSD1/AOF2 (A300-215A) was purchased from Bethyl Laboratory, Inc; anti-YY1(H-10) (SC-7341) and anti-GAPDH (SC-25778) was purchased from Santa Cruz Biotechnology. Flag peptide (F-4799) was purchased from Sigma; YY1K173me1 and YY1K411me1 peptides shared the same sequence as the ones used for antibody production.
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7

Biochemical Characterization of HIF-1α Regulation

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Anti-Myc (9E10), anti-His (H-15), anti-GAPDH (0411) and anti-HIF-1α (H206) antibodies were purchased from Santa Cruz. Anti-hemagglutinin (anti-HA) antibody was purchased from Covance. Anti-flag (F1804) antibody was purchased from Sigma. Anti-α-tubulin (EPR1333) and anti-Set7 (EPR5574) antibodies were purchased from Epitomics. Anti-HIF-1α (NB100–105) was purchased from Novus Biologicals. Anti-SOD2 (EPR2560Y) antibody was purchased from GeneTex. Anti-PAI-1 (612025) antibody was purchased from BD Transduction Laboratories. Anti-Histone H3 [(D1H2)XP] antibody was purchased from Cell Signaling. Anti-HIF-1α(CH3)-K32 polyclonal antibody was obtained at Abmart with the HIF-1α-K32-me1 peptide (Shanghai, China). The active Set7 protein (14–469) was purchased from Millipore, and S-adenosylmethionine (SAM) (B903S) was purchased from New England Biolabs (NEB). 2ME2 (S1233) was purchased from Selleck, and (R)-PFI-2 was obtained from Tocris. Glucose assay kit was purchased from BioVision, and adenosine triphosphate (ATP) assay kit from Beyotime. 6-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl) amino]-2-deoxy-D-glucose(2-NBDG), a glucose analog, was purchased from Invitrogen.
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8

Antibody Validation for Protein Analysis

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Anti-HDAC6 (C0226) antibody was purchased from Assay Biotech. Anti-FLAG (F1804) antibody was from Sigma. Anti-GAPDH (sc-25778), anti-Tubulin (sc-32293) and anti-acetylated tubulin (sc-23950) antibodies were from Santa Cruz Biotechnology (Santa Cruz, CA). Anti-acetylated H3 (06-599), anti-STAT3 (06-596), anti-JAK2 (06-255), anti-pJAK2 (04-1098) antibodies were purchased from Millipore (Billerica, MA). Anti-pSTAT3 Y705 (9138), anti-pSTAT3 S727 (9136) anti-acetyl-STAT3 (2523) and anti-pTYK2 (9321) antibodies were from Cell Signaling (Danvers, MA). Anti-TYK2 (PA5-34497) and anti-Lamin B (PA5-19468) antibodies were from Thermo Scientific.
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9

Immunoblotting for Protein Analysis

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Immunoblotting analysis was performed as described previously.[59] Anti‐ERα (F‐10) (sc‐8002) was purchased from Santa Cruz Biotechnology; anti‐Flag (F1804) antibody was purchased from Sigma; anti‐CA12 (15180‐1‐AP) antibody was purchased from Proteintech; anti‐β‐actin (66009‐1‐IG) antibody was purchased from Proteintech.
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10

Targeted siRNA knockdown of epigenetic regulators

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siRNA specifically targeting YY2 (
5′-CAGCTGGCAGAATTTACTAAA-3′), SET7/9 (5′-
TAGGGCCAGGGTATTATTATA-3′) or LSD1/AOF2 (3′-
CTGGAAATGACTATGATTTAA) was purchased from Qiagen (Valencia, CA, USA). Anti-YY2K247me1 and anti-YY2K247pan antibodies were generated by GenScript, Inc (Piscataway, NJ, USA). Antigen (peptide sequence) used for generating anti-YY2K247me1 and anti-YY2 K247pan was CTKVKPKRSK(me1)GEPPK; anti-Flag (F1804) antibody was purchased from Sigma; anti-SET7/9 (07–314) was purchased from Upstate (Billerica, MA, USA); anti-LSD1/AOF2 (A300-215A) was purchased from Bethyl Laboratory Inc. (Montgomery, TX, USA); anti-HA (ab9110) used for ChIP-seq was purchased from Abcam (Cambridge, MA, USA); anti-GAPDH (sc-25778) and anti-ACTIN (SC-8432) were purchased from Santa Cruz Biotechnology (Santa cruz, CA, USA). Peptide sequences were as follows: YY2 K247: CTKVKPKRSKGEPPK; YY2K247me1: CTKVKPKRSK(me1)GEPPK; YY2 K139: TSTQSRSKKPSKKPS.
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