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Flow Cytometry Analysis:
Representative lot data.
FC analysis of HEK293 cells stained with Anti-acetyl-Histone H3 (Lys9), FITC conjugated....
Milli-Mark™ Anti-acetyl-Histone H3 (Lys9)-FITC
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | FC | Rabbit | FITC | Polyclonal Antibody |
Description:
Milli-Mark™ Anti-acetyl-Histone H3 (Lys9)-FITC
Trade Name:
Milli-Mark
Specificity:
Antibody recognizes Human Histone H3 acetylated at Lys9
Molecular Weight:
15.5 kDa Calculated
Epitope:
Histone H3 acetylated at Lys 9
Immunogen:
KLH-conjugated, synthetic peptide corresponding to amino acids 1-12 of Histone H3.
Isotype:
IgG
Background Information:
Histone H3 is one of the five main histone proteins involved in the structure of chromatin in eukaryotic cells. Featuring a main globular domain and a long N-terminal tail, H3 is involved with the structure of the nucleosomes of the 'beads on a string' structure. The N-terminal tail of histone H3 protrudes from the globular nucleosome core and can undergo several different types of epigenetic modifications that influence cellular processes. These modifications include the covalent attachment of methyl or acetyl groups to lysine and arginine amino acids and the phosphorylation of serine or threonine.
Species Reactivity:
Human
Species Reactivity Note:
Tested and passed on Human.
Control:
HEK293 cells
Quality Assurance:
Evaluated by flow cytometry using HEK293 cells
Purification Method:
Protein A Purified
Presentation:
Purified rabbit polyclonal IgG conjugated to FITC in PBS with 0.1% sodium azide and 15 mg/mL BSA.
Storage Conditions:
Maintain refrigerated at 2-8°C protected from light for up to 6 months from date of receipt.
UniProt Number:
Entrez Gene Number:
Gene Symbol:
- HIST3H3
- H3FT
- H3/t
- H3t
- MGC126888
- H3/g
- H3.4
- H3T
- MGC126886
Alternate Names:
- H3 histone family, member T
- histone 3, H3
- histone cluster 3, H3
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.
Key Applications:
Flow Cytometry
Entrez Gene Summary:
Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene is intronless and encodes a member of the histone H3 family. Transcripts from this gene lack polyA tails; instead, they contain a palindromic termination element. This gene is located separately from the other H3 genes that are in the histone gene cluster on chromosome 6p22-p21.3
UniProt Summary:
FUNCTION: SwissProt: Q16695 # Core component of nucleosome. 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.
SIZE: 136 amino acids; 15508 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.
SUBCELLULAR LOCATION: Nucleus.
TISSUE SPECIFICITY: Expressed in testicular cells.
DEVELOPMENTAL STAGE: Expressed during S phase, then expression strongly decreases as cell division slows down during the process of differentiation.
PTM: Acetylation is generally linked to gene activation. Acetylation on Lys-10 impairs methylation at Arg-9. Acetylation on Lys-19 and Lys-24 favors methylation at Arg-18 (By similarity). & Citrullination at Arg-9 and/or Arg-18 by PADI4 impairs methylation and represses transcription (By similarity). & Asymmetric dimethylation at Arg-18 by CARM1 is linked to gene activation. Symmetric dimethylation at Arg-9 by PRMT5 is linked to gene repression (By similarity). & Methylation at Lys-5, Lys-37 and Lys-80 are linked to gene activation. Methylation at Lys-5 facilitates subsequent acetylation of H3 and H4. Methylation at Lys-80 is associated with DNA double-strand break (DSB) responses and is a specific target for TP53BP1. Methylation at Lys-10 and Lys-28 are linked to gene repression. Methylation at Lys-10 is a specific target for HP1 proteins (CBX1, CBX3 and CBX5) and prevents subsequent phosphorylation at Ser-11 and acetylation of H3 and H4. Methylation at Lys-5 and Lys-80 require preliminary monoubiquitination of H2B at 'Lys-120'. Methylation at Lys-10 and Lys-28 are enriched in inactive X chromosome chromatin (By similarity). & Phosphorylated at Thr-4 by GSG2/haspin during prophase and dephosphorylated during anaphase. At centromeres, specifically phosphorylated at Thr-12 from prophase to early anaphase. Phosphorylated at Ser-11 during the whole mitosis. Phosphorylation at Ser-11, which is linked to gene activation, prevents methylation at Lys-10 but facilitates acetylation of H3 and H4. Phosphorylated at Ser-29 by MLTK isoform 1, RPS6KA5 or AURKB during mitosis or upon ultraviolet B irradiation (By similarity). & Phosphorylation at 'Ser-11' is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. In addition phosphorylation at 'Ser-11' is important during interphase because it enables the transcription of genes following external stimulation, like stress or growth factors. Phosphorylation at 'Ser-11' is also an essential regulatory mechanism for neoplastic cell transformation. Phosphorylation at 'Ser-11' by AURKB/Aurora-B mediates the dissociation of HP1 proteins (CBX1, CBX3 and CBX5) from heterochromatin. & Ubiquitinated (By similarity).
SIMILARITY: SwissProt: Q16695 ## Belongs to the histone H3 family.
SIZE: 136 amino acids; 15508 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.
SUBCELLULAR LOCATION: Nucleus.
TISSUE SPECIFICITY: Expressed in testicular cells.
DEVELOPMENTAL STAGE: Expressed during S phase, then expression strongly decreases as cell division slows down during the process of differentiation.
PTM: Acetylation is generally linked to gene activation. Acetylation on Lys-10 impairs methylation at Arg-9. Acetylation on Lys-19 and Lys-24 favors methylation at Arg-18 (By similarity). & Citrullination at Arg-9 and/or Arg-18 by PADI4 impairs methylation and represses transcription (By similarity). & Asymmetric dimethylation at Arg-18 by CARM1 is linked to gene activation. Symmetric dimethylation at Arg-9 by PRMT5 is linked to gene repression (By similarity). & Methylation at Lys-5, Lys-37 and Lys-80 are linked to gene activation. Methylation at Lys-5 facilitates subsequent acetylation of H3 and H4. Methylation at Lys-80 is associated with DNA double-strand break (DSB) responses and is a specific target for TP53BP1. Methylation at Lys-10 and Lys-28 are linked to gene repression. Methylation at Lys-10 is a specific target for HP1 proteins (CBX1, CBX3 and CBX5) and prevents subsequent phosphorylation at Ser-11 and acetylation of H3 and H4. Methylation at Lys-5 and Lys-80 require preliminary monoubiquitination of H2B at 'Lys-120'. Methylation at Lys-10 and Lys-28 are enriched in inactive X chromosome chromatin (By similarity). & Phosphorylated at Thr-4 by GSG2/haspin during prophase and dephosphorylated during anaphase. At centromeres, specifically phosphorylated at Thr-12 from prophase to early anaphase. Phosphorylated at Ser-11 during the whole mitosis. Phosphorylation at Ser-11, which is linked to gene activation, prevents methylation at Lys-10 but facilitates acetylation of H3 and H4. Phosphorylated at Ser-29 by MLTK isoform 1, RPS6KA5 or AURKB during mitosis or upon ultraviolet B irradiation (By similarity). & Phosphorylation at 'Ser-11' is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. In addition phosphorylation at 'Ser-11' is important during interphase because it enables the transcription of genes following external stimulation, like stress or growth factors. Phosphorylation at 'Ser-11' is also an essential regulatory mechanism for neoplastic cell transformation. Phosphorylation at 'Ser-11' by AURKB/Aurora-B mediates the dissociation of HP1 proteins (CBX1, CBX3 and CBX5) from heterochromatin. & Ubiquitinated (By similarity).
SIMILARITY: SwissProt: Q16695 ## Belongs to the histone H3 family.
Protein/Isoform Description:
Histones are highly conserved proteins that serve as the structural scaffold for the organization of nuclear DNA into chromatin. The histones have an amino terminal tail, a globular domain, and a carboxy-terminal tail. The four core histones, H2A, H2B, H3 and H4 assemble into the octamer (2 molecules of each). Subsequently, 146 base pairs of DNA are wrapped in a sequence-independent manner around the octamer, forming the basic subunit of chromatin, the nucleosome. The distance between nucleosomes varies from species to species but generally is between 180 and 200 base pairs for higher organisms. Histone H1, the most common form of linker histone, binds to nucleosomal DNA at the point from which the DNA exits the nucleosome, and is required for higher order packing of chromatin.
Histones are modified post-translationally by the actions of enzymes in both the nucleus and cytoplasm that deposit specific functional groups. These modifications help to regulate the processes that depend on DNA, such as transcription, DNA repair, recombination and replication. The most commonly studied and best understood modifications are acetylation, phosphorylation, methylation, and to a lesser extent ubiquitination. The modifications occur predominantly on the amino terminal tails that extend out beyond the nucleosome core particle, but certain modifications have also been identified on the C-terminal tails and globular domains of some histones. Acetylation occurs on the epsilon amino group of lysine residues of all four core histones, and increases in acetylation in are correlated strongly with increases in gene expression.
Indeed, many histone acetyltransfease enzymes (HATs) form the catalytic subunits of transcriptional activating protein complexes. Histone deacetylases (HDACs) remove acetyl marks, antagonizing the activity of HATs and lead to decreases in transcription (see above). Phosphorylation occurs on serine residues in the amino termini of all four core histones and in multiple regions of H1. Phosphorylation of serines 10 and 28 of H3 occur during chromosome condensation in mitosis, and antibodies to these sites are excellent mitotic markers. H2B is phosphorylated at lysines 14 and 32 in cells undergoing apoptosis, and the histone variant H2A.X is phosphorylated at serine 139 in response to DNA damage. Histone methylation has recently become a popular research topic, and occurs on both lysine and arginine residues. Arginine methylation appears to be associated predominantly with transcriptional activation, whereas two specific lysine methylation events on histone H3 are hallmarks of either active chromatin (euchromatin) or silenced chromatin (heterochromatin). Ubiquitination is the least understood of the histone modifications and occurs on the C-terminal tails of H2A and H2B, and in some cases is a necessary precursor to specific histone methylation events.
Using a technique known as chromatin immunoprecipitation (ChIP), it is possible to analyze the variety of histone modifications present within a given promoter region or even an entire gene locus. Antibodies specific to the modification of interest are used to enrich for regions of chromatin (sheared to a manageable size and harvested from cells) that contain the modification, and various detection methods (Southern blot, PCR, microarray) are employed to detect specific DNA sequences within the enriched chromatin. This data is very useful in analyzing the involvement of a modification in specific biological processes.
Histones are modified post-translationally by the actions of enzymes in both the nucleus and cytoplasm that deposit specific functional groups. These modifications help to regulate the processes that depend on DNA, such as transcription, DNA repair, recombination and replication. The most commonly studied and best understood modifications are acetylation, phosphorylation, methylation, and to a lesser extent ubiquitination. The modifications occur predominantly on the amino terminal tails that extend out beyond the nucleosome core particle, but certain modifications have also been identified on the C-terminal tails and globular domains of some histones. Acetylation occurs on the epsilon amino group of lysine residues of all four core histones, and increases in acetylation in are correlated strongly with increases in gene expression.
Indeed, many histone acetyltransfease enzymes (HATs) form the catalytic subunits of transcriptional activating protein complexes. Histone deacetylases (HDACs) remove acetyl marks, antagonizing the activity of HATs and lead to decreases in transcription (see above). Phosphorylation occurs on serine residues in the amino termini of all four core histones and in multiple regions of H1. Phosphorylation of serines 10 and 28 of H3 occur during chromosome condensation in mitosis, and antibodies to these sites are excellent mitotic markers. H2B is phosphorylated at lysines 14 and 32 in cells undergoing apoptosis, and the histone variant H2A.X is phosphorylated at serine 139 in response to DNA damage. Histone methylation has recently become a popular research topic, and occurs on both lysine and arginine residues. Arginine methylation appears to be associated predominantly with transcriptional activation, whereas two specific lysine methylation events on histone H3 are hallmarks of either active chromatin (euchromatin) or silenced chromatin (heterochromatin). Ubiquitination is the least understood of the histone modifications and occurs on the C-terminal tails of H2A and H2B, and in some cases is a necessary precursor to specific histone methylation events.
Using a technique known as chromatin immunoprecipitation (ChIP), it is possible to analyze the variety of histone modifications present within a given promoter region or even an entire gene locus. Antibodies specific to the modification of interest are used to enrich for regions of chromatin (sheared to a manageable size and harvested from cells) that contain the modification, and various detection methods (Southern blot, PCR, microarray) are employed to detect specific DNA sequences within the enriched chromatin. This data is very useful in analyzing the involvement of a modification in specific biological processes.
Product Name:
Milli-Mark™ Anti-acetyl-Histone H3 (Lys9)-FITC
Antibody Type:
Polyclonal Antibody
Qty/Pk:
100 tests
Format:
FITC
Host:
Rabbit