Nuclear factor I

Nuclear factor I (NF-I) is a family of closely related transcription factors. They constitutively bind as dimers to specific sequences of DNA with high affinity. Family members contain an unusual DNA binding domain that binds to the recognition sequence 5'-TTGGCXXXXXGCCAA-3'.

Subtypes include:
 * NFIA
 * NFIB
 * NFIC
 * NFIX