Abcam, ab302928, Anti-HIRA/HIR antibody [EPR25299-11]

Size: 20µL / 100µL / 1mL
Anti-HIRA/HIR antibody [EPR25299-11] is a Rabbit Monoclonal antibody that is used in HIRA/HIR IHC-P, IP, Western Blot. Suitable for Human, Mouse, Rat samples. HIRA (Histone Cell Cycle Regulator) is a histone chaperone that facilitates replication-independent chromatin assembly by placing the variant histone H3.3 into nucleosomes. It plays a crucial role in the formation of senescence-associated heterochromatin foci (SAHF), which are involved in the irreversible cell cycle changes in senescent cells. Additionally, HIRA is essential for the periodic repression of histone gene transcription during the cell cycle
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR25299-11,
Isotype:IgG,
Carrier free:No,
Reacts with:Human, Mouse, Rat,
Applications:mIHC, WB, IHC-P, IPSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.

Product details:
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
HIRA also known as HIR or HIR/HIRA is a histone chaperone protein that plays an essential role in chromatin remodeling and nucleosome assembly. This protein has a mass of approximately 121 kDa. It is expressed in various tissues with notable presence in the liver heart and skeletal muscle. The HIRA protein interacts with other proteins to regulate the deposition of histone H3.3 which is important for processes like DNA replication and repair.
Biological function summary
HIRA participates in the formation of a complex known as the HIRA-ASF1A-CABIN1 protein complex. This complex operates in chromatin assembly and modulates the incorporation of histone variant H3.3 affecting gene silencing and transcription regulation. Interacting with histone proteins HIRA serves an important function in genome stability and epigenetic mark establishment.
Pathways
HIRA influences the histone replacement pathway significantly impacting gene expression and chromatin organization. HIRA works closely with ASF1A and CABIN1 proteins within this pathway. Additionally in the senescence-associated secretory phenotype pathway HIRA contributes to cellular aging processes by regulating transcriptional outcomes. The modulation of these pathways by HIRA exemplifies its key role in maintaining cellular functions.
Defects in HIRA associate with hypertrophic cardiomyopathy and some cancer types such as breast cancer. HIRA alterations can disrupt chromatin dynamics potentially linking it with poor prognostic factors in these diseases. In particular the HIRA gene can interact with other genes involved in cardiomyopathies like MYH7 affecting heart muscle function. Through its role in chromatin remodeling HIRA connects to various pathologies where gene regulation and DNA damage responses are compromised.