Spartalizumab (anti-PD-1)

Spartalizumab (anti-PD-1) is a humanised anti-PD-1 IgG4 antibody that blocks the binding of PD-L1 and PD-L2 to PD-1. It binds to PD-1 with high affinity and inhibits the biological activity of PD-1, MW: 145.8 KD.

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3 Citations

17 Nobel Prize winners
have used Selleck products

Shimon Sakaguchi

Nature Communications 2025;16, Article number:1325

David Baker

Dev Cell 2023;58(20):2163-2180.e9.

Michael Houghton

Cell Chem Biol 2020;27(7):780-792.e5

David Julius

Cell 2017;185-198.e16

Charles M. Rice

Cell 2018;172(3):423-438.e25

Quality Control

Batch: Purity: 99.0% Protein concentration: 5.0 mg/ml Endotoxin Level: ≤1 EU/mg

99.0

Specificity

Name	Citation	PD-1/PD-L1 interaction
PD-1/PD-L1 Inhibitor 3	13	+++
BMS-1	13	++
BMS-202	26	+
AUNP-12	3	✔

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1. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
2. "✔" indicates inhibitory effect, but without specific value.

Mechanism of Action

Description	Spartalizumab (anti-PD-1) is a humanised anti-PD-1 IgG4 antibody that blocks the binding of PD-L1 and PD-L2 to PD-1. It binds to PD-1 with high affinity and inhibits the biological activity of PD-1, MW: 145.8 KD.
Features	Human IgG4
Targets/IC₅₀/Ki	PD-1
In vivo	In phase 1/2 studies, PDR001 has a manageable safety profile and preliminary antitumor activity in advanced solid tumours.
References	[1] https://www.jto.org/article/S1556-0864(17)32900-3/abstract

Product Details

CAS No.	1935694-88-4
Isotype	Human IgG4
Source	CHO cells
Sterility	0.2 μM filtered
Formulation	PBS buffer, pH 7.2
Storage	Store the undiluted solution at 4°C in the dark to avoid freeze-thaw cycles

Comparison of Clones for

^*Literature analysis of various clone (for this target) products available on the market shows that Sellecks selected clones are more frequently applied. (data until September 2024)

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Handling Instructions

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Frequently Asked Questions

Question 1:
How to store the antibody?

Answer:
Store the undiluted solution at 4 °C in the dark. Freezing antibodies can result in a loss of activity caused by the freezing/thawing process. Diluting antibodies to working concentrations and storing at 4°C for more than a day should be avoided. Additionally, make sure to keep the antibody sterile. Under these storage conditions, your antibodies should remain active for up to one year and oftentimes longer.