PSME3 (NM_005789) Human Mass Spec Standard

Specifications

Product Data
Description	PSME3 MS Standard C13 and N15-labeled recombinant protein (NP_005780)
Species	Human
Expression Host	HEK293
Expression cDNA Clone or AA Sequence	RC200308
Predicted MW	29.5 kDa
Protein Sequence	Sequence Link (showhide) >RC200308 protein sequence Red=Cloning site Green=Tags(s) MASLLKVDQEVKLKVDSFRERITSEAEDLVANFFPKKLLELDSFLKEPILNIHDLTQIHSDMNLPVPDPI LLTNSHDGLDGPTYKKRRLDECEEAFQGTKVFVMPNGMLKSNQQLVDIIEKVKPEIRLLIEKCNTVKMWV QLLIPRIEDGNNFGVSIQEETVAELRTVESEAASYLDQISRYYITRAKLVSKIAKYPHVEDYRRTVTEID EKEYISLRLIISELRNQYVTLHDMILKNIEKIKRPRSSNAETLY TRTRPLEQKLISEEDLAANDILDYKDDDDKV
Tag	C-Myc/DDK
Purity	> 80% as determined by SDS-PAGE and Coomassie blue staining
Concentration	>0.05 µg/µL as determined by microplate BCA method
Labeling Method	Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine
Buffer	25 mM Tris-HCl, 100 mM glycine, pH 7.3
Reference Data
RefSeq	NP_005780
RefSeq Size	3455
RefSeq ORF	762
Synonyms	HEL-S-283; Ki; PA28-gamma; PA28G; PA28gamma; REG-GAMMA
Locus ID	10197
Cytogenetics	17q21.31
Summary	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 gamma subunit of the 11S regulator. Six gamma subunits combine to form a homohexameric ring. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2012]
Protein Families	Stem cell - Pluripotency
Protein Pathways	Antigen processing and presentation, Proteasome

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