- Upstream Binding Transcription Factor (UBTF)
- Ubiquitin Associated Protein 1 (UBAP1)
- Uridine Cytidine Kinase 2 (UCK2)
- Urocortin 2 (UCN2)
- Mitochondrial Uncoupling Protein 2 (UCP2)
- Beta-ureidopropionase (UPB1)
- Uroplakin 1A (UPK1A)
- Ubiquinol Cytochrome C Reductase Binding Protein (UQCRB)
- Vesicle Docking Protein (VDP)
- Ubiquitin Specific Peptidase 1 (USP1)
- Ubiquitously Expressed Transcript (UXT)
- Uridine Monophosphate Synthetase (UMPS)
- Villin (VIL)
- Vasoactive Intestinal Peptide Receptor 1 (VIPR1)
- Virus Induced Signaling Adapter (VISA)
