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

Substance Class Protein
Created
by admin
on Tue Apr 01 20:06:21 GMT 2025
Edited
by admin
on Tue Apr 01 20:06:21 GMT 2025
Protein Sub Type
Sequence Type COMPLETE
Record UNII
IYZ9TI08W3
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
B-LYMPHOCYTE SURFACE ANTIGEN B4
Preferred Name English
B-LYMPHOCYTE ANTIGEN CD19
Common Name English
CD19
Common Name English
CD-19
Common Name English
T-CELL SURFACE ANTIGEN LEU-12
Common Name English
DIFFERENTIATION ANTIGEN CD19
Common Name English
Code System Code Type Description
FDA UNII
IYZ9TI08W3
Created by admin on Tue Apr 01 20:06:21 GMT 2025 , Edited by admin on Tue Apr 01 20:06:21 GMT 2025
PRIMARY
UNIPROT
P15391
Created by admin on Tue Apr 01 20:06:21 GMT 2025 , Edited by admin on Tue Apr 01 20:06:21 GMT 2025
PRIMARY
From To
1_19 1_78
1_181 1_242
Glycosylation Type HUMAN
Glycosylation Link Type Site
N 1_67
N 1_106
N 1_119
N 1_162
N 1_246
Related Record Type Details
LIGAND->TARGET
IN-VITRO, IN-VIVO
CYTOTOXIC T-CELL->TARGET
LIGAND->TARGET
CONJUGATED TOXIN->TARGET
INHIBITOR -> TARGET
LIGAND->TARGET
LIGAND->TARGET
AGONIST -> TARGET
CONJUGATED TOXIN->TARGET
LIGAND->TARGET
INHIBITOR -> TARGET
LIGAND->TARGET
CYTOTOXIC T-CELL->TARGET
INHIBITOR -> TARGET
Co-ligation of CD19 and FcgRIIb leads to downregulation and inhibition of B lineage cells bearing these targets.
LIGAND->TARGET
INHIBITOR -> TARGET
CYTOTOXIC T-CELL->TARGET
LIGAND->TARGET
LIGAND->TARGET
INHIBITOR -> TARGET
CYTOTOXIC T-CELL->TARGET
IMMUNE RESPONSIVE CELLS->TARGET ANTIGEN

Structural Modifications

Modification Type Location Site Location Type Residue Modified Extent Fragment Name Fragment Approval
AMINO ACID SUBSTITUTION [1_329] [1_359] [1_390] [1_420] [1_481] TYROSINE O-PHOSPHATE 2R86C98KDX
AMINO ACID SUBSTITUTION [1_208] Amount: DEXFOSFOSERINE VI4F0K069V
Name Property Type Amount Referenced Substance Defining Parameters References
MOL_WEIGHT CHEMICAL