CIZ is an alias for the gene, Zinc finger protein 384, in humans. Other names include: Nuclear matrix transcription factor 4; Nuclear matrix protein 4; Trinucleotide repeat-containing gene 1 protein; CAG repeat protein 1; CAS-interacting zinc finger protein; CAGH1; CAGH1A; ERDA2; NMP4; TNRC1. The encoded protein has an amino acid length of 577 and a mass of 63.2 kDa. CIZ is a member of the Krueppel C2H2-type zinc-finger protein family. This gene shares homology with other species, including: Frog.