Provided below are ELISA kits targeting CCR4-NOT transcription complex subunit 4, a human protein encoded by CNOT4. This protein is 575 amino acids long with a reported mass of 63.5 kDa. 10 isoforms have been identified. This is reported to be a cytoplasmic and nuclear protein. It is also an enzyme classified as a(n) ligase (broad). Other alias names for this protein include: CCR4-associated factor 4, E3 ubiquitin-protein ligase CNOT4, NOT4 (negative regulator of transcription 4 yeast) homolog, RING-type E3 ubiquitin transferase CNOT4, CLONE243, NOT4, and NOT4H.