PSME4 anticorps (AA 391-657)

N° du produit ABIN7874615

Cet anticorps Lapin Polyclonal détecte spécifiquement PSME4 dans WB, ELISA, IF, FACS et ICC. Il présente une réactivité avec des échantillons de Humain, Souris et Rat.

Aperçu rapide pour PSME4 anticorps (AA 391-657) (ABIN7874615)

Antigène: PSME4 (Proteasome (Prosome, Macropain) Activator Subunit 4 (PSME4))

Reactivité: Humain, Souris, Rat

Hôte: Lapin

Clonalité: Polyclonal

Conjugué: Cet anticorp PSME4 est non-conjugé

Application: Western Blotting (WB), ELISA, Immunofluorescence (IF), Flow Cytometry (FACS), Immunocytochemistry (ICC)

Détail du produit anti-PSME4 anticorps

Épitope: AA 391-657

Fonction: PSME4 Antibody / Proteasome activator complex subunit 4

Purification: Immunogen affinity purified

Immunogène: E.coli-derived human PSME4 recombinant protein (Position: Q391-L657) was used as the immunogen for the PSME4 antibody.

Isotype: IgG

Information d'application

Indications d'application: Optimal dilution of the PSME4 antibody should be determined by the researcher.

Restrictions: For Research Use only

Stockage

Format: Lyophilized

Reconstitution: Adding 0.2 mL of distilled water will yield a concentration of 500 μg/mL

Buffer: Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.

Stock: 4 °C,-20 °C

Stockage commentaire: After reconstitution, the PSME4 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Détails sur PSME4

Antigène: PSME4 (Proteasome (Prosome, Macropain) Activator Subunit 4 (PSME4))

Autre désignation: PSME4

Sujet: PSME4 antibody detects Proteasome activator complex subunit 4, also known as PA200, a nuclear protein that regulates proteasome function during DNA repair and spermatogenesis. PSME4 binds to the 20S proteasome core to enhance peptide cleavage and modulate substrate selectivity in a ubiquitin-independent manner. The PSME4 antibody is widely used in proteostasis, cell cycle, and DNA repair research to study proteasome regulation and nuclear protein degradation.

PSME4 is encoded by the PSME4 gene located on human chromosome 2q37.1. The protein is approximately 1,840 amino acids long and forms a ring-like structure that caps one end of the 20S proteasome. PSME4-mediated activation alters proteasome activity toward oxidized and acetylated substrates, enhancing degradation of histones and DNA repair factors following genotoxic stress.

The PSME4 antibody detects a 220 kilodalton protein by western blot and shows strong nuclear localization under immunofluorescence microscopy. PSME4 plays a crucial role in DNA double-strand break repair by facilitating turnover of repair-associated chromatin proteins, including histones and Ku70/80. In male germ cells, PSME4 regulates histone replacement during spermatogenesis, ensuring chromatin condensation and sperm maturation.

Deficiency of PSME4 leads to impaired proteasome activation and accumulation of damaged proteins, resulting in genomic instability and infertility. PSME4 also influences transcriptional regulation and aging by modulating histone acetylation and chromatin dynamics. In cancer, aberrant PSME4 expression alters proteasome activity, contributing to resistance against apoptosis and therapeutic stress.

As a specialized proteasome activator, PSME4 provides insight into the noncanonical regulation of proteolysis and DNA repair. NSJ Bioreagents provides a validated PSME4 antibody optimized for its applications, supporting research into nuclear proteasome regulation, DNA damage response, and reproductive biology.

UniProt: Q14997

Pathways: DNA Replication, Synthesis of DNA