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Alexa fluor conjugated series

Manufactured by Thermo Fisher Scientific

The Alexa Fluor-conjugated series are a family of fluorescent dyes developed for use in various biological applications. These dyes are characterized by their bright fluorescence, photostability, and ability to be conjugated to a wide range of biomolecules. The Alexa Fluor dyes are available in multiple emission wavelengths, allowing for flexibility in experimental design and multi-color analysis.

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4 protocols using alexa fluor conjugated series

1

Immunofluorescence Staining of Cellular Markers

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Immunofluorescence staining was performed using standard procedures7 (link),71 . Primary antibodies used were mouse anti-Fas III (1:200, DSHB, 7G10), anti-HA (1:200; Sigma-Aldrich H3663), anti-PCNA (1:200; Santa Cruz sc-56), anti-GFP (1:1,000; Abcam ab 13970), anti-mKO (1:200; MBL PM051M), anti-mCherry (1:1000; Invitrogen M11217), anti-H3K27me3 (1:200; Millipore 07–449), anti-H4K20me2/3 (1:400; Abcam ab7817), anti-ssDNA (1:100, DSHB) and anti-BrdU (1:200; Abcam ab6326). BrdU analogue was Invitrogen B23151 5-bromo-2´-deoxyuridine (BrdU). Secondary antibodies were the Alexa Fluor-conjugated series (1:1000; Molecular Probes). Confocal images for immunostained fixed sample were taken using Zeiss LSM 700 Multiphoton confocal microscope with 63x or 100x oil immersion objectives and processed using Adobe Photoshop software.
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2

Immunofluorescence Staining of Cellular Markers

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Immunofluorescence staining was performed using standard procedures7 (link),71 . Primary antibodies used were mouse anti-Fas III (1:200, DSHB, 7G10), anti-HA (1:200; Sigma-Aldrich H3663), anti-PCNA (1:200; Santa Cruz sc-56), anti-GFP (1:1,000; Abcam ab 13970), anti-mKO (1:200; MBL PM051M), anti-mCherry (1:1000; Invitrogen M11217), anti-H3K27me3 (1:200; Millipore 07–449), anti-H4K20me2/3 (1:400; Abcam ab7817), anti-ssDNA (1:100, DSHB) and anti-BrdU (1:200; Abcam ab6326). BrdU analogue was Invitrogen B23151 5-bromo-2´-deoxyuridine (BrdU). Secondary antibodies were the Alexa Fluor-conjugated series (1:1000; Molecular Probes). Confocal images for immunostained fixed sample were taken using Zeiss LSM 700 Multiphoton confocal microscope with 63x or 100x oil immersion objectives and processed using Adobe Photoshop software.
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3

Immunofluorescence Staining and Microscopy Protocol

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Immunofluorescence staining was performed using standard procedures (Hime et al., 1996 (link); Tran et al., 2012 (link)). Primary antibodies were mouse anti-α spectrin (1:50, DSHB 3A9), mouse anti-Fas III (1:50, DSHB, 7G10), mouse anti-Armadillo (1:100; DSHB, N2 7A1 clone), rabbit anti-H3T3P (1:200, Millipore 05-746R), mouse anti-H3S10P (1:200; Millipore, #05-806), chicken anti-CID (1:100; gift from Dr. Sylvia Erhardt, University of Heidelberg, Germany), and rabbit anti-Vasa (1:200; Santa Cruz SC-30210). Secondary antibodies were the Alexa Fluor-conjugated series (1:200; Molecular Probes). Lysotracker (Invitrogen L7528) is applied according to manufacturer recommendation. Images were taken using the Zeiss LSM 510 META or Zeiss LSM 700 Multiphoton confocal microscope with a 40x or 63 x oil immersion objectives and processed using Adobe Photoshop software.
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4

Immunofluorescence Staining of Mouse ESCs

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Immunofluorescence staining of mESCs was performed using standard procedures (Hime et al., 1996 (link)). Primary antibodies were rabbit anti-APC (1:150, Santa Cruz sc-7930), goat anti-Claudin 6 (1:150, Santa Cruz sc-17669), rabbit anti-Sox2 (1:200, Active Motif 39823), rat anti-Nanog (1:200, Active Motif 61627), rabbit anti-Rex1 (1:200, Thermo Fisher# PA5-27567), rabbit anti-Oct4 (1:200, Abcam# ab181557), mouse anti-SSEA-1 (1:50, Thermo Fisher# MC-480). Secondary antibodies were the Alexa Fluor-conjugated series (1:600, Molecular Probes). ESCs and EpiSCs were also stained with an Alkaline Phosphatase Detection Kit (SCR004, Millipore) following the manufacturer’s instructions. Culture the cells for 5 days prior to analyzing ALP activity. Then fix the cells with 4% paraformaldehyde (PFA) in PBS for 1-2 mins. Aspirate the fixative and rinse with 1× Rinse buffer for twice. Prepare the Alkaline Phosphatase staining solution by mixing Fast Red Violet (FRV) with Napthol AS-BI phosphate solution and water in a 2:1:1 ratio. Incubate the cells in dark at room temperature for 30 mins. Aspirate the staining solution and rinse with 1× Rinse buffer for twice. Cover the cells with PBS and then image the colonies with ALP activity. Related to validation Figure A-B and expression Figure E in Mendeley data.
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