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5 fam ser pro leu ala gln ala val arg ser ser ser arg lys 5 tamra nh2

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5-FAM-Ser-Pro-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Lys(5-TAMRA)-NH2 is a synthetic peptide consisting of the sequence Ser-Pro-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Lys. The peptide is labeled with the fluorescent dyes 5-FAM (5-carboxyfluorescein) and 5-TAMRA (5-carboxytetramethylrhodamine) at the N-terminus and C-terminus, respectively.

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4 protocols using 5 fam ser pro leu ala gln ala val arg ser ser ser arg lys 5 tamra nh2

1

Measurement of ADAM17 Activity in MEFs

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Control wildtype and Pacs2−/− MEFs were lysed at 4°C in RIPA containing protease inhibitor cocktail. The lysates were cleared by centrifugation, and protein concentration equalized by BCA assay. A black Nunc Delta F96 Microwell plate was pre-coated overnight at 4°C with a 1:100 dilution of ADAM17 antibody (ab2051, Abcam). Subsequently, the plate was washed three times in PBST (PBS with 0.05% Tween 20), and blocked in 1% BSA in PBS for 1 hour at 37°C. After washing three times in PBST, 25 µg/well of lysates were added in triplicate and incubated for 2 hours at 4°C. After washing the plate again, 5 µM of ADAM17 substrate II (5-FAM-Ser-Pro-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Lys(5-TAMRA)-NH2, ENZO Life Sciences) was added to each well for analysis of ADAM17 activity. Fluorimetric measurements with excitation at 485nm and emission at 535nm were made at 37°C with an Optima FLUOSTAR plate reader (BMG Labtech), programmed for measuring every 5 minutes for 1 hour.
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2

Measurement of ADAM17 Activity in MEFs

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Control wildtype and Pacs2−/− MEFs were lysed at 4°C in RIPA containing protease inhibitor cocktail. The lysates were cleared by centrifugation, and protein concentration equalized by BCA assay. A black Nunc Delta F96 Microwell plate was pre-coated overnight at 4°C with a 1:100 dilution of ADAM17 antibody (ab2051, Abcam). Subsequently, the plate was washed three times in PBST (PBS with 0.05% Tween 20), and blocked in 1% BSA in PBS for 1 hour at 37°C. After washing three times in PBST, 25 µg/well of lysates were added in triplicate and incubated for 2 hours at 4°C. After washing the plate again, 5 µM of ADAM17 substrate II (5-FAM-Ser-Pro-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Lys(5-TAMRA)-NH2, ENZO Life Sciences) was added to each well for analysis of ADAM17 activity. Fluorimetric measurements with excitation at 485nm and emission at 535nm were made at 37°C with an Optima FLUOSTAR plate reader (BMG Labtech), programmed for measuring every 5 minutes for 1 hour.
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3

Enzymatic Activities of PBMC Supernatants

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PBMC supernatants enzymatic activities were analysed in 384 black wells plates in a final volume of 30 µL, using the procedure described (26 (link)). Briefly, neutrophil elastase (NE) activity was measured using the fluorogenic substrate Methoxysuccinyl-Ala-Ala-Pro-Val-7-amido-4-methylcoumarin, (Sigma), excitation and emission wavelength being 460 and 370 nm, respectively, while pan-metalloprotease activity was assessed with the substrate 5-FAM-Ser-Pro-Leu-Ala-Gln-Ala-ValArg-Ser-Ser-Ser-Arg-Lys(5-TAMRA)-NH2 (Enzo Life Sciences), excitation and emission wavelength being 485 and 535 nm, respectively. Fluorescence was read over a 3 h period, with a VarioskanFlash Multimode Reader (Thermo Scientific).
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4

Recombinant HMGB1 Signaling Pathway

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Recombinant human HMGB1 (1690-HMB, endotoxin less than 0.10 EU/μg) was purchased from R&D Systems (Abingdon, UK). SB203580 and dimethyl sulfoxide (DMSO) were from EMD Chemicals (Darmstadt, Germany). TAPI-2 was from Cayman Chemical (Ann Arbor, MI, USA). Antibodies to human TLR4 (76B357.1: a mouse monoclonal antibody against amino acids 100 -200 of human TLR4), RAGE (sc-80652, a mouse monoclonal antibody against a truncated extracellular domain of human RAGE), p38 mitogen-activated protein kinase (p38 MAPK), ADAM10 and actin were from Santa Cruz Biotechnology (Santa Cruz, CA, USA). Antibodies to human TLR4 (ab13556; a rabbit polyclonal antibody against amino acids 420-435 of human TLR4) and ADAM17 were from Abcam. An antibody to human phospho-p38 MAPK (Thr180/Tyr182) was from Cell Signaling Technology (Denvers, MA, USA).
ADAM17-siRNA, ADAM10-siRNA, RAGE-siRNA, TLR4-siRNA and control-siRNA (Ambion ® ) were from Life Technologies (Paisley, UK). The fluorogenic substrate, 5FAM-Ser-Pro-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Lys(5-TAMRA)-NH 2 , was from Enzo Life Sciences, Inc. (Farmingdale, NY, USA). 4',6-Diamidino-2phenylindole dihydrochloride (DAPI) and Ponceau S solution were from Sigma-Aldrich (St. Louis, MO, USA).
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