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Rabbit Anti-PSME1/FITC Conjugated antibody
background:
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. This gene encodes the alpha subunit of the 11S regulator, one of the two 11S subunits that is induced by gamma-interferon. Three alpha and three beta subunits combine to form a heterohexameric ring. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
Function:
Implicated in immunoproteasome assembly and required for efficient antigen processing. The PA28 activator complex enhances the generation of class I binding peptides by altering the cleavage pattern of the proteasome.
Subunit:
Heterodimer of PSME1 and PSME2, which forms a hexameric ring. PSME1 can form homoheptamers.
Similarity:
Belongs to the PA28 family.
Database links:
Entrez Gene: 5720 Human
Entrez Gene: 510041 Cow
Entrez Gene: 19186 Mouse
Entrez Gene: 397572 Pig
Entrez Gene: 29630 Rat
Omim: 600654 Human
SwissProt: Q4U5R3 Cow
SwissProt: Q06323 Human
SwissProt: P97371 Mouse
SwissProt: Q64L94 Pig
SwissProt: Q63797 Rat
Unigene: 75348 Human
Unigene: 830 Mouse
Unigene: 2742 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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