| Protein | Synonyms | Taxonomy |
|---|
| Protein Tat | Transactivating regulatory protein | HIV-1 M:B_HXB2R |
| Transcription elongation factor SPT5 | hSPT5; DRB sensitivity-inducing factor 160 kDa subunit; DSIF p160; DRB sensitivity-inducing factor large subunit; DSIF large subunit; Tat-cotransactivator 1 protein; Tat-CT1 protein | Homo sapiens (human) |
| RNA polymerase II elongation factor ELL | Eleven-nineteen lysine-rich leukemia protein | Homo sapiens (human) |
| Negative elongation factor E | NELF-E; RNA-binding protein RD | Homo sapiens (human) |
| Transcription elongation factor A protein 1 | Transcription elongation factor S-II protein 1; Transcription elongation factor TFIIS.o | Homo sapiens (human) |
| Transcription elongation factor SPT4 | hSPT4; DRB sensitivity-inducing factor 14 kDa subunit; DSIF p14; DRB sensitivity-inducing factor small subunit; DSIF small subunit | Homo sapiens (human) |
| FACT complex subunit SSRP1 | Chromatin-specific transcription elongation factor 80 kDa subunit; Facilitates chromatin transcription complex 80 kDa subunit; FACT 80 kDa subunit; FACTp80; Facilitates chromatin transcription complex subunit SSRP1; Recombination signal sequence recogniti | Homo sapiens (human) |
| Negative elongation factor C/D | NELF-C/D; TH1-like protein | Homo sapiens (human) |
| Negative elongation factor B | NELF-B; Cofactor of BRCA1 | Homo sapiens (human) |
| Negative elongation factor A | NELF-A; Wolf-Hirschhorn syndrome candidate 2 protein | Homo sapiens (human) |
| RNA polymerase II subunit A C-terminal domain phosphatase | EC 3.1.3.16; TFIIF-associating CTD phosphatase | Homo sapiens (human) |
| FACT complex subunit SPT16 | Chromatin-specific transcription elongation factor 140 kDa subunit; FACT 140 kDa subunit; FACTp140; Facilitates chromatin transcription complex subunit SPT16; hSPT16 | Homo sapiens (human) |