Ubiquitin Conjugation Factor E4 B

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

**Definition:** Ubiquitin conjugation factor E4 B (1302 aa, ~146 kDa) is encoded by the human UBE4B gene. This protein plays a role in the mediation of polyubiquitination.

**Synonyms:** - EC 2.3.2.27 - Homozygously Deleted In Neuroblastoma 1 - RING-Type E3 Ubiquitin Transferase E4 B - Ubiquitin Fusion Degradation Protein 2