TCEB2 Full-Length MS Protein Standard


Product Description:

Name TCEB2 Full-Length MS Protein Standard
Cat# CPFL301393
Protein Nametranscription elongation factor B (SIII), polypeptide 2 (18kDa, elongin B)
SymbolTCEB2
SynonymsELOB; SIII
AccessionNM_007108
Cytogenetic16p12.3
Amino Acid Labeled[U- 13C6, 15N4]-L-Arg and [U- 13C6, 15N2]-L-Lys
Chemical Purity> 80% as determined by SDS-PAGE and Coomassie blue staining
Expression HostHuman HEK293 cells
Predicted MW13 kDa
Expression TrueORF CloneRC201393
DescriptionTCEB2 Full-Length MS Protein Standard (NP_009039), Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine, was produced in human 293 cells (HEK293) with fully chemically defined cell culture medium to obtain incorporation efficiency at Creative-Proteomics. This gene encodes the protein elongin B, which is a subunit of the transcription factor B (SIII) complex. The SIII complex is composed of elongins A/A2, B and C. It activates elongation by RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin A functions as the transcriptionally active component of the SIII complex, whereas elongins B and C are regulatory subunits. Elongin A2 is specifically expressed in the testis, and capable of forming a stable complex with elongins B and C. The von Hippel-Lindau tumor suppressor protein binds to elongins B and C, and thereby inhibits transcription elongation. Two alternatively spliced transcript variants encoding different isoforms have been described for this gene. Pseudogenes have been identified on chromosomes 11 and 13.

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