VH · Heavy chain variable region121 aa
QVQLQQPGAELVKPGASVKMSCKASGYTFTSYNMHWVKQTPGRGLEWIGAIYPGNGDTSYNQKFKGKATLTADKSSSTAYMQLSSLTSEDSAVYYCARSTYYGGDWYFNVWGAGTTVTVSAPUBLIC ANTIBODY SEQUENCE · PSC-CD20-004
Rituximab antibody sequence
CD20 · MS4A1
An established reference sequence for B-cell research, CD20 occupancy and biosimilar-comparison studies.
Public variable-region amino-acid sequences
The sequences below cover the VH and VL variable regions. They do not include the constant region, signal peptide or other engineered design selected for a customer project.
VL · Light chain variable region106 aa
QIVLSQSPAILSASPGEKVTMTCRASSSVSYIHWFQQKPGSSPKPWIYATSNLASGVPVRFSGSGSGTSYSLTISRVEAEDAATYYCQQWTSNPPTFGGGTKLEIKPUBLIC SOURCEThera-SAbDab PL132 · Approved / Active (Feb 2025)
View the original Thera-SAbDab record Suggested research applications
- B-cell phenotyping
- CD20 binding detection
- Competitive blocking
- Flow cytometry
Suggested starting labels
UV421SF488PEAPC
Dye selection can be adjusted for instrument lasers, co-expression intensity and panel design. Final selection is confirmed during project assessment.
Optional project scope
- Sequence review and construct design
- Recombinant expression and purification
- Fluorescent conjugation and free-dye removal
- Concentration, appearance and agreed basic quality checks
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Start a project from this public sequence
Submit the intended antibody format, scale, fluorophore and application. We will first confirm the technical route and delivery boundaries.