Ready-to-use ELISA kits are available for the detection of TAF7-like RNA polymerase II, TATA box binding protein (TBP)-associated factor, an alias of the protein, TATA-box binding protein associated factor 7 like. The official gene symbol is TAF7L. The protein, with a mass of 52.6 kDa and length of 462 residues, is reported to be cytoplasmic and nuclear. It is a member of the TAF7 family and may be known by other names, including: transcription initiation factor TFIID 50 kDa subunit, cancer/testis antigen 40, TATA box-binding protein-associated factor 50 kDa, TAF7-like RNA polymerase II TATA box binding protein (TBP)-associated factor 50kDa, RNA polymerase II TBP-associated factor subunit Q, and TAF2Q.