CENPP Human

Centromere Protein-P Human Recombinant
Cat. No.
BT7213
Source
Escherichia Coli.
Synonyms
Centromere protein P, CENP-P, CENPP.
Appearance
Sterile filtered colorless solution.
Purity
Greater than 85% 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.

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Description

CENPP Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 308 amino acids (1-288 a.a) and having a molecular mass of 35.3kDa.
CENPP is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
Centromere protein P (CENPP) is a component of the CENPA-CAD (nucleosome distal) complex, which is recruited to centromeres and is involved in the assembly of kinetochore proteins, mitotic progression, and chromosome segregation. CENPP protein is involved in the incorporation of newly synthesized CENPA into centromeres through its interaction with the CENPA-NAC complex.
Description
Recombinant human CENPP protein produced in E. coli is a single, non-glycosylated polypeptide chain containing 308 amino acids (amino acids 1-288) and has a molecular mass of 35.3 kDa. CENPP is fused to a 20 amino acid His-tag at the N-terminus and is purified using proprietary chromatographic techniques.
Physical Appearance
A sterile, colorless solution.
Formulation
CENPP protein solution (1 mg/ml) in 20 mM Tris-HCl buffer (pH 8.0), 0.4 M Urea, and 10% glycerol.
Stability
For short-term storage (2-4 weeks), store at 4°C. For long-term storage, store frozen at -20°C. Adding a carrier protein (0.1% HSA or BSA) is recommended for long-term storage. Avoid multiple freeze-thaw cycles.
Purity
Greater than 85% purity as determined by SDS-PAGE.
Synonyms
Centromere protein P, CENP-P, CENPP.
Source
Escherichia Coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MDAELAEVRA LQAEIAALRR ACEDPPAPWE EKSRVQKSFQ AIHQFNLEGW KSSKDLKNQL GHLESELSFL STLTGINIRN HSKQTEDLTS TEMTEKSIRK VLQRHRLSGN CHMVTFQLEF QILEIQNKER LSSAVTDLNI IMEPTECSEL SEFVSRAEER KDLFMFFRSL HFFVEWFEYR KRTFKHLKEK YPDAVYLSEG PSSCSMGIRS ASRPGFELVI VWRIQIDEDG KVFPKLDLLT KVPQRALELD KNRAIETAPL SFRTLVGLLG IEAALESLIK SLCAEENN.

Product Science Overview

Structure and Function

CENP-P is part of the constitutive centromere-associated network (CCAN), a complex of proteins that assemble at the centromere. The CCAN is essential for the formation and function of the kinetochore, a structure that attaches chromosomes to spindle microtubules during cell division . CENP-P, along with other CCAN proteins, helps to establish and maintain the centromere-kinetochore interface, which is critical for accurate chromosome segregation .

Discovery and Characterization

CENP-P was identified as one of the centromere proteins through studies aimed at understanding the composition and function of the centromere. The protein was found to be intrinsically disordered, meaning it lacks a fixed three-dimensional structure under physiological conditions . This intrinsic disorder allows CENP-P to interact with multiple binding partners and perform its role in the centromere-kinetochore complex.

Role in Chromosome Segregation

During cell division, the centromere and kinetochore must function correctly to ensure that chromosomes are evenly distributed to daughter cells. CENP-P, as part of the CCAN, interacts with other centromere proteins to form a stable and functional kinetochore. This interaction is crucial for the attachment of spindle microtubules to the chromosomes, facilitating their movement and segregation .

Human Recombinant CENP-P

Recombinant CENP-P is produced using genetic engineering techniques, where the gene encoding CENP-P is inserted into a suitable expression system, such as bacteria or yeast. This allows for the production of large quantities of the protein, which can be used for research and therapeutic purposes. Human recombinant CENP-P is particularly valuable in studying the molecular mechanisms of centromere function and in developing potential treatments for diseases related to chromosome segregation errors, such as cancer.

Research and Clinical Implications

Research on CENP-P and other centromere proteins has provided significant insights into the mechanisms of chromosome segregation and the role of the centromere in maintaining genomic stability. Understanding how CENP-P functions within the CCAN and kinetochore complex can help identify potential targets for therapeutic intervention in diseases caused by chromosome segregation errors .

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