CBX5 Human

Chromobox Homolog 5 Human Recombinant
Cat. No.
BT8348
Source
E.coli.
Synonyms
Chromobox homolog 5 (HP1 alpha homolog, Drosophila), Heterochromatin protein 1 homolog alpha, HP1Hs alpha, HP1 alpha homolog.
Appearance
Sterile Filtered colorless solution.
Purity
Greater than 90% as determined by SDS-PAGE.
Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

CBX5 Human Recombinant produced in E. coli is a single polypeptide chain containing 215 amino acids (1-191) and having a molecular mass of 24.8kDa.
CBX5 is fused to a 24 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
CBX5, a member of the heterochromatin protein family, is primarily found in heterochromatin and associated with centromeres. This protein plays a crucial role in forming functional kinetochores by interacting with essential kinetochore proteins. CBX5 participates in the re-establishment of chromatin structure at the end of mitosis by reassociating with chromatin as Histone H3 undergoes dephosphorylation. A pseudogene for CBX5 is located on chromosome 3.
Description
Recombinant CBX5, produced in E. coli, is a single polypeptide chain consisting of 215 amino acids (residues 1-191) with a molecular weight of 24.8kDa. This protein is expressed with a 24 amino acid His-tag fused at the N-terminus and is purified using proprietary chromatographic techniques.
Physical Appearance
Clear, colorless solution, sterile-filtered.
Formulation
The provided CBX5 solution (1mg/ml) is formulated in a buffer containing 20mM Tris-HCl (pH 8.0), 100mM NaCl, 1mM DTT, and 30% glycerol.
Stability
For short-term storage (2-4 weeks), the solution should be kept at 4°C. For extended storage, it is recommended to freeze the solution at -20°C. Adding a carrier protein (0.1% HSA or BSA) is advisable for long-term storage. Avoid repeated freezing and thawing cycles.
Purity
The purity of the protein is determined to be greater than 90% by SDS-PAGE analysis.
Synonyms
Chromobox homolog 5 (HP1 alpha homolog, Drosophila), Heterochromatin protein 1 homolog alpha, HP1Hs alpha, HP1 alpha homolog.
Source
E.coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSHMGKKTK RTADSSSSED EEEYVVEKVL DRRVVKGQVE YLLKWKGFSE EHNTWEPEKN LDCPELISEF MKKYKKMKEG ENNKPREKSE SNKRKSNFSN SADDIKSKKK REQSNDIARG FERGLEPEKI IGATDSCGDL MFLMKWKDTD EADLVLAKEA NVKCPQIVIA FYEERLTWHA YPEDAENKEK ETAKS.

Product Science Overview

Gene and Protein Structure

The CBX5 gene is located on chromosome 12 (12q13.13) in humans . The gene encodes a protein that is 191 amino acids in length and contains six exons . The protein has two main domains:

  • N-terminal Chromodomain (CD): This domain binds to histone proteins via methylated lysine residues, specifically recognizing histone H3 tails methylated at lysine 9 (H3K9me) .
  • C-terminal Chromoshadow Domain (CSD): This domain is responsible for homodimerization and interaction with various chromatin-associated non-histone proteins .
Function and Biological Role

CBX5 is enriched in heterochromatin and is associated with centromeres . It plays a significant role in the formation of functional kinetochores through its interaction with essential kinetochore proteins . The protein is involved in several key biological processes:

  • Epigenetic Repression: By binding to methylated histone H3, CBX5 contributes to the repression of gene expression .
  • Chromatin Organization: CBX5 helps in maintaining the structure of heterochromatin, ensuring proper chromosome segregation during cell division .
  • DNA Damage Response: CBX5 is involved in the cellular response to DNA damage, aiding in the repair process .
Clinical Significance

Mutations or dysregulation of the CBX5 gene have been associated with various diseases, including Fanconi Anemia and Reynolds Syndrome . The protein’s role in maintaining chromatin structure and gene expression makes it a potential target for therapeutic interventions in diseases related to chromatin dysfunction.

Recombinant CBX5

Recombinant CBX5 (Human) is produced using recombinant DNA technology, which allows for the expression of the human CBX5 gene in a host organism, such as bacteria or yeast. This recombinant protein is used in research to study the function and interactions of CBX5 in various biological processes.

Quick Inquiry

Personal Email Detected
Please use an institutional or corporate email address for inquiries. Personal email accounts ( such as Gmail, Yahoo, and Outlook) are not accepted. *
© Copyright 2024 Thebiotek. All Rights Reserved.