2610043E24Rik Protein, 2610301I15Rik Protein, AA407206 Protein, AI987979 Protein, AW049146 Protein, SIII Protein, eloC Protein, TCEB1 Protein, fb09f09 Protein, wu:fb09f09 Protein, zgc:111990 Protein, zgc:92635 Protein, elongin C Protein, elongin C L homeolog Protein, transcription elongation factor B (SIII), polypeptide 1b Protein, Eloc Protein, eloc.L Protein, ELOC Protein, tceb1b Protein
Hintergrund
TCEB1 (elongin C) is a subunit of elongin, which is a general transcription elongation factor that increases the RNA polymerase II transcription elongation past template encoded arresting sites. 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(VHL) tumor suppressor protein binds to elongins B and C, and thereby inhibits transcription elongation. Recombinant human TCEB1 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques. Synonyms: Transcription elongation factor B polypeptide 1, SIII, Elongin-C. NCBI no.: NP_005639