Nucleolar Transcription Factor 1

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Nucleolar transcription factor 1 (764 aa, ~89 kDa) is encoded by the human UBTF gene. This protein is involved in the positive regulation of ribosomal RNA gene transcription.

**Synonyms:** - 90-kDa Nucleolus Organizer Region Autoantigen - Autoantigen NOR-90 - UBF-1 - UBTF - Upstream Binding Factor 1 - Upstream-Binding Factor 1