Elongation factor B (ELOB) polypeptide is a protein that in humans is encoded by the TCEB gene, whihc gene encodes the protein elongin B, a subunit of the transcription factor B (Sill) complex, which is composed of elongins A/A2, B and C.
Transcription elongation factor B polypeptide 2 is a protein that in humans is encoded by the TCEB2 gene. 
