Anti-phospho-Histone H2A.X (Ser139), FITC

Species Reactivity	Key Applications	Host	Format	Antibody Type
H	FC, ICC	M	FITC	Monoclonal Antibody

Species Reactivity

Key Applications

Host

Format

Antibody Type

FC, ICC

FITC

Monoclonal Antibody

Description
Catalogue Number	16-202A
Brand Family	Upstate
Trade Name	Upstate
Description	Anti-phospho-Histone H2A.X (Ser139) Antibody, clone JBW301, FITC conjugate
Alternate Names	H2AXS139P Histone H2A.X (phospho S139) H2A histone family, member X H2AX histone
Background Information	Histone H2A is one of the 5 main histone proteins involved in the structure of chromatin in eukaryotic cells. Featuring a main globular domain and a long N terminal tail H2A is involved with the structure of the nucleosomes of the 'beads on a string' structure.

Description

Catalogue Number

16-202A

Brand Family

Upstate

Trade Name

Upstate

Description

Anti-phospho-Histone H2A.X (Ser139) Antibody, clone JBW301, FITC conjugate

Alternate Names

H2AXS139P
Histone H2A.X (phospho S139)
H2A histone family, member X
H2AX histone

Background Information

Histone H2A is one of the 5 main histone proteins involved in the structure of chromatin in eukaryotic cells. Featuring a main globular domain and a long N terminal tail H2A is involved with the structure of the nucleosomes of the 'beads on a string' structure.

Product Information
Format	FITC
Control	Staurosporine-treated Jurkat cells
Presentation	Purified FITC-conjugated mouse monoclonal IgG1 in buffer containing PBS with 0.05% sodium azide. Frozen solution.

Product Information

Format

FITC

Control

Staurosporine-treated Jurkat cells

Presentation

Purified FITC-conjugated mouse monoclonal IgG1 in buffer containing PBS with 0.05% sodium azide. Frozen solution.

Applications
Application	Use Anti-phospho-Histone H2A.X (Ser139) Antibody, clone JBW301, FITC conjugate (mouse monoclonal antibody) validated in FC, ICC to detect phospho-Histone H2A.X (Ser139) also known as H2AXS139P, H2AX histone.
Key Applications	Flow Cytometry Immunocytochemistry
Application Notes	Immunocytochemistry: 2-4 μg/mL of a previous lot detected phospho-histone H2A.X in etoposide-treated HeLa cells fixed with 95% ethanol/5% acetic acid (10 minutes), followed by 1% formaldehyde, 0.25% Triton® X-100 in TBS (5 min.).

Applications

Application

Use Anti-phospho-Histone H2A.X (Ser139) Antibody, clone JBW301, FITC conjugate (mouse monoclonal antibody) validated in FC, ICC to detect phospho-Histone H2A.X (Ser139) also known as H2AXS139P, H2AX histone.

Key Applications

Flow Cytometry
Immunocytochemistry

Application Notes

Immunocytochemistry: 2-4 μg/mL of a previous lot detected phospho-histone H2A.X in etoposide-treated HeLa cells fixed with 95% ethanol/5% acetic acid (10 minutes), followed by 1% formaldehyde, 0.25% Triton® X-100 in TBS (5 min.).

Biological Information
Immunogen	KLH-conjugated, synthetic peptide (CKATQA[pS]QEY) corresponding to amino acids 134-142 of human histone H2A.X. The immunizing sequence has 8 identical amino acids in yeast and mouse. Clone JBW301.
Epitope	Ser139
Clone	clone JBW301
Concentration	Please refer to the Certificate of Analysis for the lot-specific concentration.
Host	Mouse
Specificity	Recognizes Histone H2A.X phosphorylated at Ser139, MW 15 kDa.
Isotype	IgG1
Species Reactivity	Human
Species Reactivity Note	Human. Broad species cross-reactivity is expected based on conservation of sequence homology.
Antibody Type	Monoclonal Antibody
Entrez Gene Number	NM_002105.2
Entrez Gene Summary	Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene encodes a member of the histone H2A family, and generates two transcripts through the use of the conserved stem-loop termination motif, and the polyA addition motif.
Gene Symbol	H2AFX H2AX H2a/x H2A/X H2A.X
Modifications	Phosphorylation
Purification Method	Protein G Purified
UniProt Number	P16104
UniProt Summary	FUNCTION: SwissProt: P16104 # Variant histone H2A which replaces conventional H2A in a subset of nucleosomes. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. Required for checkpoint-mediated arrest of cell cycle progression in response to low doses of ionizing radiation and for efficient repair of DNA double strand breaks (DSBs) specifically when modified by C- terminal phosphorylation. SIZE: 143 amino acids; 15145 Da SUBUNIT: The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. Interacts with numerous proteins required for DNA damage signaling and repair when phosphorylated on Ser-140. These include MDC1, TP53BP1, BRCA1 and the MRN complex, composed of MRE11A, RAD50, and NBN. Interaction with the MRN complex is mediated at least in part by NBN. Also interacts with DHX9/NDHII when phosphorylated on Ser-140. SUBCELLULAR LOCATION: Nucleus.DEVELOPMENTAL STAGE: Synthesized in G1 as well as in S-phase. DOMAIN: SwissProt: P16104 The [ST]-Q motif constitutes a recognition sequence for kinases from the PI3/PI4-kinase family. PTM: Phosphorylated on Ser-140 (to form gamma-H2AFX) in response to DNA double strand breaks (DSBs) generated by exogenous genotoxic agents and by stalled replication forks, and may also occur during meiotic recombination events and immunoglobulin class switching in lymphocytes. Phosphorylation can extend up to several thousand nucleosomes from the actual site of the DSB and may mark the surrounding chromatin for recruitment of proteins required for DNA damage signaling and repair. Widespread phosphorylation may also serve to amplify the damage signal or aid repair of persistent lesions. Phosphorylation of Ser-140 in response to ionizing radiation is mediated by both ATM and PRKDC while defects in DNA replication induce Ser-140 phosphorylation subsequent to activation of ATR and PRKDC. Dephosphorylation of Ser-140 by PP2A is required for DNA DSB repair. In meiosis, Ser-140 phosphorylation may occur at synaptonemal complexes during leptotene as an ATM-dependent response to the formation of programmed DSBs by SPO11. Ser-140 phosphorylation may subsequently occurs at unsynapsed regions of both autosomes and the XY bivalent during zygotene, downstream of ATR and BRCA1 activation. Ser-140 phosphorylation may also be required for transcriptional repression of unsynapsed chromatin and meiotic sex chromosome inactivation (MSCI), whereby the X and Y chromosomes condense in pachytene to form the heterochromatic XY-body. During immunoglobulin class switch recombination in lymphocytes, Ser-140 phosphorylation may occur at sites of DNA-recombination subsequent to activation of the activation-induced cytidine deaminase AICDA. & Monoubiquitination of Lys-120 by RING1 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression (By similarity). SIMILARITY: Belongs to the histone H2A family.
Molecular Weight	15 kDa

Biological Information

Immunogen

KLH-conjugated, synthetic peptide (CKATQA[pS]QEY) corresponding to amino acids 134-142 of human histone H2A.X. The immunizing sequence has 8 identical amino acids in yeast and mouse. Clone JBW301.

Epitope

Ser139

Clone

clone JBW301

Concentration

Please refer to the Certificate of Analysis for the lot-specific concentration.

Host

Mouse

Specificity

Recognizes Histone H2A.X phosphorylated at Ser139, MW 15 kDa.

Isotype

IgG1

Species Reactivity

Human

Species Reactivity Note

Human.
Broad species cross-reactivity is expected based on conservation of sequence homology.

Antibody Type

Monoclonal Antibody

Entrez Gene Number

NM_002105.2

Entrez Gene Summary

Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene encodes a member of the histone H2A family, and generates two transcripts through the use of the conserved stem-loop termination motif, and the polyA addition motif.

Gene Symbol

H2AFX
H2AX
H2a/x
H2A/X
H2A.X

Modifications

Phosphorylation

Purification Method

Protein G Purified

UniProt Number

P16104

UniProt Summary

FUNCTION: SwissProt: P16104 # Variant histone H2A which replaces conventional H2A in a subset of nucleosomes. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. Required for checkpoint-mediated arrest of cell cycle progression in response to low doses of ionizing radiation and for efficient repair of DNA double strand breaks (DSBs) specifically when modified by C- terminal phosphorylation.
SIZE: 143 amino acids; 15145 Da
SUBUNIT: The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. Interacts with numerous proteins required for DNA damage signaling and repair when phosphorylated on Ser-140. These include MDC1, TP53BP1, BRCA1 and the MRN complex, composed of MRE11A, RAD50, and NBN. Interaction with the MRN complex is mediated at least in part by NBN. Also interacts with DHX9/NDHII when phosphorylated on Ser-140.
SUBCELLULAR LOCATION: Nucleus.DEVELOPMENTAL STAGE: Synthesized in G1 as well as in S-phase.
DOMAIN: SwissProt: P16104 The [ST]-Q motif constitutes a recognition sequence for kinases from the PI3/PI4-kinase family.
PTM: Phosphorylated on Ser-140 (to form gamma-H2AFX) in response to DNA double strand breaks (DSBs) generated by exogenous genotoxic agents and by stalled replication forks, and may also occur during meiotic recombination events and immunoglobulin class switching in lymphocytes. Phosphorylation can extend up to several thousand nucleosomes from the actual site of the DSB and may mark the surrounding chromatin for recruitment of proteins required for DNA damage signaling and repair. Widespread phosphorylation may also serve to amplify the damage signal or aid repair of persistent lesions. Phosphorylation of Ser-140 in response to ionizing radiation is mediated by both ATM and PRKDC while defects in DNA replication induce Ser-140 phosphorylation subsequent to activation of ATR and PRKDC. Dephosphorylation of Ser-140 by PP2A is required for DNA DSB repair. In meiosis, Ser-140 phosphorylation may occur at synaptonemal complexes during leptotene as an ATM-dependent response to the formation of programmed DSBs by SPO11. Ser-140 phosphorylation may subsequently occurs at unsynapsed regions of both autosomes and the XY bivalent during zygotene, downstream of ATR and BRCA1 activation. Ser-140 phosphorylation may also be required for transcriptional repression of unsynapsed chromatin and meiotic sex chromosome inactivation (MSCI), whereby the X and Y chromosomes condense in pachytene to form the heterochromatic XY-body. During immunoglobulin class switch recombination in lymphocytes, Ser-140 phosphorylation may occur at sites of DNA-recombination subsequent to activation of the activation-induced cytidine deaminase AICDA. & Monoubiquitination of Lys-120 by RING1 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression (By similarity).
SIMILARITY: Belongs to the histone H2A family.

Molecular Weight

15 kDa

Product Usage Statements
Quality Assurance	Evaluated by Flow Cytometry to detect Log phase Jurkat cells treated with staurosporine. Flow Cytometry: Log phase Jurkat cells were treated with staurosporine (1 μg/mL) for the indicated time. Histone H2A.X (Ser 139) phosphorylation was detected as described in the manual for the H2A.X Phosphorylation Assay Kit (Flow Cytometry), Catalog # 17-344. Cells were analyzed on a Becton-Dickinson FACS-Calibur flow cytometer.
Usage Statement	Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Product Usage Statements

Quality Assurance

Evaluated by Flow Cytometry to detect Log phase Jurkat cells treated with staurosporine.

Flow Cytometry: Log phase Jurkat cells were treated with staurosporine (1 μg/mL) for the indicated time. Histone H2A.X (Ser 139) phosphorylation was detected as described in the manual for the H2A.X Phosphorylation Assay Kit (Flow Cytometry), Catalog # 17-344. Cells were analyzed on a Becton-Dickinson FACS-Calibur flow cytometer.

Usage Statement

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage and Shipping Information
Storage Conditions	Stable for 1 year at from date of receipt.

Storage and Shipping Information

Storage Conditions

Stable for 1 year at from date of receipt.

Packaging Information
Material Size	100 µg

Packaging Information

Material Size

100 µg

实验耗材

分子生物学试剂

蛋白与免疫学

生化试剂

细胞及检测试剂

色谱及层析

仪器设备

实验服务

办公用品

Anti-phospho-Histone H2A.X (Ser139), FITC

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