- X chromosome
- X isoform
- X11L2
- X25
- Xaa-Pro Aminopeptidase 1
- XAF1 Antibody
- XAP121
- XAP-2
- XAP4
- XAPC7
- X-arrestin
- XC chemokine ligand 1
- XCL1
- XCP1
- Xeroderma pigmentosum group A-complementing protein
- Xgeva / Prolia Biosimilar Stable Cell Line
- XH2
- XH98G2
- XIAP (Phosphorylated) Antibody
- XIAP Antibody
- XIAP associated factor-1 Antibody
- Xip1
- X-kinase
- XL-147
- XL184 (CABOZANTINIB) (FREE BASE)
- XL-228
- XL518
- XL-518
- XL-765
- XL765 (VOXTALISIB, SAR245409)
- XL880
- XLF
- X-linked 16
- X-linked helicase II
- X-linked nuclear protein
- X-linked PEST-containing transporter
- XLKD1
- XLMTM
- XNP
- Xolair Biosimilar Stable Cell Line
- XPA
- XPA Antibody
- XPA binding protein 1 GTPase
- XPAC
- XPF Antibody
- XPGC
- XPLN
- XPNPEP1 Enzyme
- XPNPEP3 Enzyme
- XPNPEPL
- XPNPEPL1
- X-Pro Aminopeptidase 1
- X-Pro Aminopeptidase 3
- X-ray repair cross-complementing protein 1
- X-ray repair cross-complementing protein 2 Immunogen The antiserum was produced against synthesized
- X-ray repair cross-complementing protein 3
- X-ray repair cross-complementing protein 4
- XRCC1 Antibody
- XRCC2 Antibody
- XRCC3 Antibody
- XRCC4 Antibody
- XRCC4-like factor
- XRCC5 Antibody
- XRCC6
- XRCC6 Antibody
- XRCC7
- XRN2 Antibody
- XTP3TPA
- XTP3-transactivated gene A protein
- XXbac-BPG13B8.1-001