JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB124602

Recombinant Human HP1 alpha protein (His tag N-Terminus)

Be the first to review this product! Submit a review

|

(0 Publication)

Recombinant Human HP1 alpha protein (His tag N-Terminus) is a Human Full Length protein, in the 1 to 191 aa range, expressed in Escherichia coli, with >90%, suitable for SDS-PAGE, Mass Spec.

View Alternative Names

HP1A, CBX5, Chromobox protein homolog 5, Antigen p25, Heterochromatin protein 1 homolog alpha, HP1 alpha

1 Images
SDS-PAGE - Recombinant Human HP1 alpha protein (His tag N-Terminus) (AB124602)
  • SDS-PAGE

Unknown

SDS-PAGE - Recombinant Human HP1 alpha protein (His tag N-Terminus) (AB124602)

15% SDS-PAGE showing ab124602 (3 µg).

Key facts

Purity

>90% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE, Mass Spec

applications

Biologically active

No

Accession

P45973

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 30% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.32% Tris HCl, 0.02% (R*,R*)-1,4-Dimercaptobutan-2,3-diol

storage-buffer

style
left-column

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "Mass Spec": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
style
left-column
style
left-column

Sequence info

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMGSHMGKKTKRTADSSSSEDEEEYVVEKVLDRRVVKGQVEYLLKWKGFSEEHNTWEPEKNLDCPELISEFMKKYKKMKEGENNKPREKSESNKRKSNFSNSADDIKSKKKREQSNDIARGFERGLEPEKIIGATDSCGDLMFLMKWKDTDEADLVLAKEANVKCPQIVIAFYEERLTWHAYPEDAENKEKETAKS","proteinLength":"Full Length","predictedMolecularWeight":"24.8 kDa","actualMolecularWeight":null,"aminoAcidEnd":191,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P45973","tags":[{"tag":"His","terminus":"N-Terminus"}]}]
style
left-column

Properties and storage information

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
False
style
left-column

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

HP1 alpha also known as HP1a or HP1 protein is a well-studied member of the heterochromatin protein 1 family. It plays a mechanical role in chromatin organization and gene regulation by binding to histone H3 when it's methylated at lysine 9 (H3K9me). This protein has a molecular mass of approximately 22-25 kDa. HP1 alpha is commonly expressed in the nuclei of eukaryotic cells where it localizes to heterochromatin regions and influences chromatin compaction.
Biological function summary

Heterochromatin protein 1 alpha acts as a modulator of gene silencing. It is part of a larger protein complex that contains various chromatin modifiers responsible for maintaining the silent state of certain genes. By mediating these interactions HP1 alpha helps regulate transcription replication timing and DNA repair processes. This regulation is essential for the structural maintenance of heterochromatin and plays a part in chromosomal stability.

Pathways

HP1 alpha is integral in the epigenetic regulation pathway along with other well-known proteins including SUV39H1 and SUV39H2 which are histone methyltransferases. HP1 alpha also links to the DNA damage response pathway where it recruits repair factors to maintain genomic integrity. Through these pathways HP1 alpha interacts closely with proteins like BRCA1 emphasizing its role in cellular homeostasis and response to DNA damage.

Researchers associate HP1 alpha with cancer and developmental disorders. Alterations in HP1 alpha expression or function can lead to disruptions in chromatin organization contributing to oncogenesis by affecting tumor suppressor genes. Furthermore HP1 alpha links to disorders like ICF syndrome through its relationship with the DNA methylation process where it interacts with proteins such as DNMT3B. Understanding these connections provides insights into therapeutic approaches targeting epigenetic modifications in disease contexts.
style
left-column

Specifications

Form

Liquid

Additional notes

ab124602 is purified by using conventional chromatography techniques.

style
left-column

General info

Function

Component of heterochromatin that recognizes and binds histone H3 tails methylated at 'Lys-9' (H3K9me), leading to epigenetic repression. In contrast, it is excluded from chromatin when 'Tyr-41' of histone H3 is phosphorylated (H3Y41ph) (PubMed : 19783980). May contribute to the association of heterochromatin with the inner nuclear membrane by interactions with the lamin-B receptor (LBR) (PubMed : 19783980). Involved in the formation of kinetochore through interaction with the MIS12 complex subunit NSL1 (PubMed : 19783980, PubMed : 20231385). Required for the formation of the inner centromere (PubMed : 20231385).

Post-translational modifications

Phosphorylation of HP1 and LBR may be responsible for some of the alterations in chromatin organization and nuclear structure which occur at various times during the cell cycle (By similarity). Phosphorylated during interphase and possibly hyper-phosphorylated during mitosis.. Ubiquitinated.

Subcellular localisation

Nucleus

style
left-column

Product protocols

style
left-column

Target data

Component of heterochromatin that recognizes and binds histone H3 tails methylated at 'Lys-9' (H3K9me), leading to epigenetic repression. In contrast, it is excluded from chromatin when 'Tyr-41' of histone H3 is phosphorylated (H3Y41ph) (PubMed : 19783980). May contribute to the association of heterochromatin with the inner nuclear membrane by interactions with the lamin-B receptor (LBR) (PubMed : 19783980). Involved in the formation of kinetochore through interaction with the MIS12 complex subunit NSL1 (PubMed : 19783980, PubMed : 20231385). Required for the formation of the inner centromere (PubMed : 20231385).
See full target information CBX5
style
left-column
style
left-column
style
right-column

Complementary Products

Proteins & Peptides

AB80289

Recombinant human KMT1A / SUV39H1 protein

Functional Studies - Recombinant human KMT1A / SUV39H1 protein (AB80289)

  • 0
  • 0
Primary Antibodies

AB109028

Anti-HP1 alpha antibody [EPR5777] - Heterochromatin marker

BOND RX™ Validated|KO Validated|RabMAb|Recombinant|Lab Essentials|20ul selling size

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-HP1 alpha antibody [EPR5777] - Heterochromatin marker (AB109028)

  • 5
  • 9
Proteins & Peptides

AB109847

Recombinant Human CBX1 / HP1 beta protein (His tag N-Terminus)

Western blot - Recombinant Human CBX1 / HP1 beta protein (His tag N-Terminus) (AB109847)

  • 0
  • 0
Primary Antibodies

AB8898

Anti-Histone H3 (tri methyl K9) antibody - ChIP Grade

BOND RX™ Validated

ChIP - Anti-Histone H3 (tri methyl K9) antibody - ChIP Grade (AB8898)

  • 5
  • 92

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com