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4 protocols using acrylamide

1

Fluorescence Substrate Preparation Protocol

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The fluorescence susbstrates were purchased in DNA-synthesis, Moscow, Russia. Other oligonucleotides were purchased in Evrogen, Moscow, Russia. DNAse/RNAse free water was purchased from Qiagen, Hilden, Germany. Salts, including MgCl2, NaCl, KCl, HEPES, and DEPC were purchased from CarlROTH, Carlsruhe, Germany. Acrylamide was purchased from Applichem, Illinois, USA. Other materials for electrophoresis, including agarose, tris, boric acid, EDTA, bisAcrylamide, APS, TEMED, ethidium bromide, and SDS were purchased from Helicon, Moscow, Russia. Ladders and gel loading dyes were purchased from Evrogen, Moscow, Russia. Consumables for bacteria growth, including agar, tripton and yeast extract, were purchased in Dia-M, Moscow, Russia. Glass beads of technical grade was a gift from a technical department. Sodium acetate, phenol, and chlorophorm were purchased from Lenreactiv, Saint-Petersburg, Russia.
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2

Protein Folding Monitoring Using ANS

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GdnHCl (Nacalai Tesque, Japan), acrylamide (AppliChem, Germany), and ANS (ammonium salt of 8-anilinonaphtalene-1-sulfonic acid; Fluka, Switzerland) were used without further purification. The protein concentration was 0.1–0.2 mg/ml. The experiments were performed in 20 mM Na-phosphate-buffered solution at pH 7.8.
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3

Radioimmunoassay Protocol for cGMP Quantification

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125I-cGMP with a specific activity of 81.4 TBq/mmol was obtained from Biotrend (Cologne, Germany). 2-Mercaptoethanol, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), acetic acid, ethanol, glucose, isopropyl alcohol, milk powder, methanol, N,N,N’,N’-tetramethylethylene-diamine (TEMED), sodium acetate, sodium dodecyl sulfate (SDS), Tris-buffer, and Tween® 20 were obtained from Roth (Karlsruhe, Germany). 3-Isobutyl-1-methylxanthine (IBMX), 3-morpholino-sydnonimine (SIN-1), ammonium persulfate (APS), betulinic acid (BA), bicinchoninic acid, bromophenol blue, copper sulfate, gamma-globulin, n-butanol, sepiapterin, sodium fluoride, sodium pyrophosphate, and Triton-X 100 were obtained from Sigma (Taufkirchen, Germany). Acrylamide, 30% solution (37.5:1), and bovine serum albumin (BSA), albumin fraction V were obtained from Applichem (Darmstadt, Germany). ICI 182,780 was obtained from Tocris Bioscience (Minneapolis, MN, USA). LY294002, and wortmannin were obtained from Calbiochem (Darmstadt, Germany).
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4

Protein Modification and Characterization

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Acrylamide (AppliChem GmbH, Darmstadt, Germany); bis-Acrylamide (Amresco, Solon, OH, USA); HSA (fraction V; Renal, Budapest, Hungary); Nile Red (9-diethylamino-5H-benzo[alpha]phenoxazine-5-one (C20H18N2O2)) (Merck, Darmstadt, Germany); 1 M MgCl2 (M1028-1ML) (Sigma, St. Louis, MO, USA); NaCl, (NH4)2S2O8 (Acros Organics, Waltham, MA, USA); N,N,N′,N′-tetramethyl ethylenediamine (TEMED) (Bio-Rad Laboratories, Berkeley, CA, USA); Tris (Fisher Scientific, Pittsburgh, PA, USA); AcOH (ice-cold) and Stains-All (Acros Organics, Waltham, MA, USA); xylene cyanol (Sigma, St. Louis, MO, USA); Ficoll 400 (Pharmacia, Stockholm, Sweden); DMEM; DMEM F12; Fetal Bovine Serum (FBS); GlutaMAX Supplement; Antibiotic-Antimycotic; and TrypLE (Gibco, Waltham, MA, USA) were used in this work. The isolation and purification of the HSA monomeric fraction were performed according to [68 (link)]. HSA modified by sulfo-Cy5 dye (HSA-Cy5) was obtained according to [69 (link)]. For the solutions, Milli-Q (18.2 M × Om/cm) water (purified by Simplicity 185 water system (Millipore, St. Louis, MO, USA)) was used.
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