CD19
CD19 is a B cell coreceptor expressed from early pre-B cell stages through mature B cells but lost upon plasma cell differentiation. Together with CD21, CD81, and CD225, it forms a signalosome that lowers the threshold for B cell receptor signaling by recruiting PI3K. As the most broadly expressed marker of the B lineage, CD19 is the leading target for CAR-T therapies such as tisagenlecleucel in B cell leukemias and lymphomas. Patients lacking functional CD19 show markedly impaired antibody responses, underscoring its central role in humoral immunity. Structurally, its extracellular region carries two C2-type Ig-like domains that help organize B cell receptor microclusters.
-
CD19 Recombinant Proteins (15)
CD19 Protein, Human (Biotinylated, HEK293, Fc-Avi)
0 Images
Cat. No.: HY-P78917
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Human (HEK293, His)
0 Images
Cat. No.: HY-P74330
Purity: ≥ 90%, as determined by reducing SDS-PAGE or Bis-Tris PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
FITC-Labeled CD19 Protein, Human (HEK293, His)
0 Images
Cat. No.: HY-P701243
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Human (HEK293, Fc)
0 Images
Cat. No.: HY-P70505
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform CRA_a; Differentiation Antigen CD19; Alternative Protein CD19; B-Lymphocyte Antigen CD19; CVID3; CD19 Antigen; B4
- Species:
- Source:
CD19 Protein, Mouse (HEK293, His)
0 Images
Cat. No.: HY-P74328
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Human (CHO, Fc)
0 Images
Cat. No.: HY-P7333
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform CRA_a; Differentiation Antigen CD19; Alternative Protein CD19; B-Lymphocyte Antigen CD19; CVID3; CD19 Antigen; B4
- Species:
- Source:
CD19 Protein, Cynomolgus/Rhesus Macaque (HEK293, His)
0 Images
Cat. No.: HY-P75439
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Mouse (Biotinylated, HEK293, His)
0 Images
Cat. No.: HY-P77527
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Cynomolgus/Rhesus Macaque (Biotinylated, HEK293, His)
0 Images
Cat. No.: HY-P76857
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Cynomolgus/Rhesus Macaque (HEK293, Fc)
0 Images
Cat. No.: HY-P7833
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
FITC-Labeled CD19 Protein, Human (HEK293, hFc)
0 Images
Cat. No.: HY-P704306
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Cynomolgus/Rhesus Macaque (CHO, hFc)
0 Images
Cat. No.: HY-P704441
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Human (CHO, His)
0 Images
Cat. No.: HY-P704445
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
CD19 Protein, Human (Biotinylated, HEK293, His-Avi)
0 Images
Cat. No.: HY-P705110
Purity: ≥ 90%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform CRA_a; Differentiation Antigen CD19; Alternative Protein CD19; B-Lymphocyte Antigen CD19; CVID3; CD19 Antigen; B4
- Species:
- Source:
CD19 Protein, Human (HEK293, mFc)
0 Images
Cat. No.: HY-P705413
Purity: ≥ 95%, as determined by reducing SDS-PAGE.
Synonyms: CD19; CDNA FLJ60916, Highly Similar To B-Lymphocyte Antigen CD19; CD19 Molecule; CDNA FLJ54955, Highly Similar To B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; CD19 Antigen, Isoform CRA_f; T-Cell Surface Antigen Leu-12; CD19 Antigen, Isoform
- Species:
- Source:
- 1
Recombinant Protein Expression Service
- Codon Optimization
- Gene Synthesis
- Construction of Expression Vector
- Strain Screening
- Protein Expression
- Purification & QC
- Protein Delivery
- 1
Capetin (28-54), human
0 Images
- Formula: Human
- Molecular Weight: Sf9 insect cells
The EpCAM/TROP1 protein serves as an important homogeneous interacting molecule that promotes direct contact between intestinal epithelial cells (IEC) and intraepithelial lymphocytes (IEL) in the mucosal epithelium. This feature helps establish an immune barrier against mucosal infections. EpCAM/TROP1 Protein, Human (His-SUMO) is the recombinant human-derived EpCAM/TROP1 protein, expressed by E. coli , with N-6*His, N-SUMO labeled tag.
