DNA-binding protein that induces severe bending of DNA. Required for DNA-binding by the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication and DNA repair (By similarity). Probably associates with the stable spt16-ssrp1 heterodimer to form the FACT complex. Belongs to the NHP6 family.