Table 3 List of antibodies used in the study

From: Functional avidity of anti-B7H3 CAR-T constructs predicts antigen density thresholds for triggering effector function

Target

Product ID

Catalog Number

Viability dye

Fixable Blue Dead Cell Stain — LIVE/Dead™ (Thermo)

L34961

Flow count beads

Precision Count Beads (Biolegend)

424902

B7H3-his

B7H3-his protein to detect CAR at the cell surface (R&D Biosystems)

1949-B3-050/CF

His

Anti-his mAb clone J095G46-APC (BioLegend)

362605

Ag density quantification

BD Biosciences™ Quantibrite™ Phycoerythrin (PE) Beads; used to quantify B7H3 antigen density on target cell surface

10626384

Fixation buffer

Fixation buffer (Biolegend)

420801

Cell membrane dye

eBioscience Cell Proliferation Dye eFluor 450 (blue) (Thermo Fisher); used to label cells for BEHAV3D analysis

65-0842-85

Cell membrane dye

Calcein AM (green) (Thermo Fisher); used to label cells for BEHAV3D analysis

C1430

Cell membrane dye

CellTrace™ Far Red Cell Proliferation Kit, for flow cytometry; used to label cells for Lumicks z-Movi analysis

C34564

RQR8 marker gene

Clone QBEND10-APC (BioTechne)

FAB7227A

CD3

Clone OKT-3-Brilliant Violet 711 (Biolegend)

317328

CD4

Clone VIT4-VioBlue (Miltenyi Biotec),

130-113-219

B7H3

Clone MIH42-PE (BioLegend)

351003

PD-1

Clone EH12.1-Brillant Violet 605 (Beckton Dickinson)

563245

CD25

Clone 2A3-Briljant Violet 711 (Beckton Dickinson)

563159

CD4

Clone A161A1-FITC (BioLegend)

357406

CD8

Clone SK1-PerCP (BioLegend)

344706

TIM-3

Clone F38-2E2-PE (BioLegend)

345006

CCR7

Clone G043H7-PE/Dazzle594 (BioLegend)

353235

CD69

Clone FN50-PE-Cy7 (Beckton Dickinson)

561928

CD137

Clone 4B4-1-APC (Beckton Dickinson)

550890

CD3

Clone HIT3a-Alexa Fluor 700 (BioLegend)

300324

muCD45

Clone 30-F11-APC/FireTM 810 (BioLegend)

103173

CD45RA

Clone HI100-APC/Cy7 (Beckton Dickinson)

750258