U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Approval Year

Substance Class Protein
Created
by admin
on Wed Apr 02 10:46:13 GMT 2025
Edited
by admin
on Wed Apr 02 10:46:13 GMT 2025
Protein Type BISPECIFIC ANTIBODY
Protein Sub Type IGG4
Sequence Origin HUMAN
Sequence Type COMPLETE
Record UNII
Z8TW7Z7LJD
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
Solabafusp Alfa
INN  
Official Name English
Immunoglobulin G4 [228-proline,234-alanine,235-alanine,de-C-terminal-lysine], anti-(human programmed death-ligand PD-L1) (recombinant human monoclonal KL-A167 ?4-chain) fusion protein with linker peptide ((GGGGS)3) fusion protein with lipocalin 2 (human
Preferred Name English
humanized immunoglobulin G4-kappa, anti-[Homo sapiens CD274 (programmed cell death 1 ligand 1, PDL1, PD-L1, B7 homolog 1, B7H1, B7-H1, PDCD1LG1)] fused at the C-terminus of each heavy chain via a (G4S)3 linker to human lipocalin-2 (neutrophil gelatinase-
Common Name English
solabafusp alfa [INN]
Common Name English
Code System Code Type Description
NCI_THESAURUS
C213417
Created by admin on Wed Apr 02 10:46:13 GMT 2025 , Edited by admin on Wed Apr 02 10:46:13 GMT 2025
PRIMARY
SMS_ID
300000015484
Created by admin on Wed Apr 02 10:46:13 GMT 2025 , Edited by admin on Wed Apr 02 10:46:13 GMT 2025
PRIMARY
INN
13188
Created by admin on Wed Apr 02 10:46:13 GMT 2025 , Edited by admin on Wed Apr 02 10:46:13 GMT 2025
PRIMARY
CAS
2918752-58-4
Created by admin on Wed Apr 02 10:46:13 GMT 2025 , Edited by admin on Wed Apr 02 10:46:13 GMT 2025
PRIMARY
FDA UNII
Z8TW7Z7LJD
Created by admin on Wed Apr 02 10:46:13 GMT 2025 , Edited by admin on Wed Apr 02 10:46:13 GMT 2025
PRIMARY
From To
4_134 4_194
4_23 4_88
3_134 3_194
3_23 3_88
2_537 2_636
2_367 2_425
2_261 2_321
2_147 2_203
2_134 4_214
2_22 2_95
1_537 1_636
1_367 1_425
1_261 1_321
1_229 2_229
1_226 2_226
1_147 1_203
1_134 3_214
1_22 1_95
Glycosylation Type MAMMALIAN
Glycosylation Link Type Site
N 1_297
N 2_297
Related Record Type Details
TARGET -> AGONIST
Clustering of 4-1BB on the surface of T cells leads to T cell activation
PRECLINICAL
TARGET -> INHIBITOR
PRECLINICAL
Related Record Type Details
ACTIVE MOIETY
Clustering of 4-1BB on the surface of T cells leads to T cell activation, proliferation, and cytokine secretion. The mode of action of PRS-344 is to promote 4-1BB clustering by bridging 4-1BB-positive T cells with PD-L1-positive tumor cells, providing a potent co-stimulatory signal to tumor antigen-specific T cells. PRS-344 is intended to localize 4-1BB activation in the tumor in a PD-L1-dependent manner

Structural Modifications

Modification Type Location Site Location Type Residue Modified Extent Fragment Name Fragment Approval
AMINO_ACID_SUBSTITUTION [1_1] [2_1] N-TERMINUS Q PIDOLIC ACID SZB83O1W42
Name Property Type Amount Referenced Substance Defining Parameters References
MOL_WEIGHT:NUMBER(CALCULATED) CHEMICAL
Molecular Formula CHEMICAL
MOL_WEIGHT:NUMBER(CALCULATED) CHEMICAL