Isoforms
Humans express the following heat shock factors:
| gene | protein |
|---|---|
| HSF1 | heat shock transcription factor 1 |
| HSF2 | heat shock transcription factor 2 |
| HSF2BP | heat shock transcription factor 2 binding protein |
| HSF4 | heat shock transcription factor 4 |
| HSF5 | heat shock transcription factor family member 5 |
| HSFX1 | heat shock transcription factor family, X linked 1 |
| HSFX2 | heat shock transcription factor family, X linked 2 |
| HSFY1 | heat shock transcription factor, Y-linked 1 |
| HSFY2 | heat shock transcription factor, Y-linked 2 |
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