CD19 - CD19 molecule Gene
Also Known as B4; CVID3
Species: Homo sapiens
About CD19
This gene has 5 transcripts (splice variants), 96 orthologues and is associated with 3 phenotypes. Biased expression in lymph node (RPKM 43.1), spleen (RPKM 28.3) and 3 other tissues.
Summary
This gene encodes a member of the immunoglobulin gene superfamily. Expression of this cell surface protein is restricted to B cell lymphocytes. This protein is a reliable marker for pre-B cells but its expression diminishes during terminal B cell differentiation in antibody secreting plasma cells. The protein has two N-terminal extracellular Ig-like domains separated by a non-Ig-like domain, a hydrophobic transmembrane domain, and a large C-terminal cytoplasmic domain. This protein forms a complex with several membrane proteins including Complement Receptor type 2 (CD21) and tetraspanin (CD81) and this complex reduces the threshold for antigen-initiated B cell activation. Activation of this B-cell antigen receptor complex activates the phosphatidylinositol 3-kinase signalling pathway and the subsequent release of intracellular stores of calcium ions. This protein is a target of chimeric antigen receptor (CAR) T-cells used in the treatment of lymphoblastic leukemia. Mutations in this gene are associated with the disease common variable immunodeficiency 3 (CVID3) which results in a failure of B-cell differentiation and impaired secretion of immunoglobulins. CVID3 is characterized by hypogammaglobulinemia, an inability to mount an antibody response to antigen, and recurrent Bacterial infections. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2020]
CD19 Products (3)
| mRNA | Protein | Name |
|---|---|---|
| NM_001178098.2 | NP_001171569.1 | B-lymphocyte antigen CD19 isoform 1 precursor |
| NM_001385732.1 | NP_001372661.1 | B-lymphocyte antigen CD19 isoform 3 precursor |
| NM_001770.6 | NP_001761.3 | B-lymphocyte antigen CD19 isoform 2 precursor |
| Cellular Component GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| located in external side of plasma membrane |
IDA
IDA: Inferred from direct assay
|
17213291 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
16672701 | GOA |
| part of protein-containing complex |
IDA
IDA: Inferred from direct assay
|
23071339 | GOA |
CD19 Protein Structure
Ig_2: Immunoglobulin domain (23 - 103)
- 0
- 100
- 200
- 300
- 400
- 500
- 556 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
B-lymphocyte antigen CD19 |
|
Recombinant CD19 Proteins
| Cat. No. | Nom du produit | Accession | Pureté |
|---|---|---|---|
| HY-P7333 | CD19 Protein, Human (CHO, Fc) | P15391-1 (P20-K291) | ≥ 95%, as determined by reducing SDS-PAGE. |
| HY-P70505 | CD19 Protein, Human (HEK293, Fc) | P15391-1 (P20-K291) | ≥ 95%, as determined by reducing SDS-PAGE. |
| HY-P74330 | CD19 Protein, Human (HEK293, His) | P15391-1 (P20-K291) | ≥ 90%, as determined by reducing SDS-PAGE or Bis-Tris PAGE. |
| HY-P78917 | CD19 Protein, Human (Biotinylated, HEK293, Fc-Avi) | P15391-1 (P20-K291) | ≥ 95%, as determined by reducing SDS-PAGE. |
CD19 Anticorps
| Cat. No. | Nom du produit | Application | Reactivity |
|---|---|---|---|
| HY-P80446 | CD19 Antibody (YA543) | WB, ICC/IF, IHC-P, FC | Human |
| HY-P80597 | CD19 Antibody (YA807) | ICC/IF, FC | Human |
| HY-P80597A | CD19 Antibody (YA807)(PBS only) | ICC/IF, FC | Human |
| HY-P86647 | CD19 Antibody (YA6339) | WB, IHC-P, ICC/IF, IP, ELISA | Human |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Immunodeficiency, Common Variable, 3 |
|
|
| Common Variable Immunodeficiency |
|
|
| Immunodeficiency, Common Variable, 2 |
|
|
| Relapsed/Refractory Diffuse Large B-Cell Lymphoma |
|
|
| B-Lymphoblastic Leukemia/Lymphoma |
|
|
| Central Nervous System Leukemia |
|
|
| Prolymphocytic Leukemia |
|
|
| Agammaglobulinemia |
|
|
| B Cell Deficiency |
|
|
| Pemphigus Foliaceus |
|
|
| Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma |
|
|
| Leukemia |
|
|
| Leukemia, Acute Lymphoblastic |
|
|
| Transient Hypogammaglobulinemia |
|
|
| B-Cell Adult Acute Lymphocytic Leukemia |
|
|
| Monoclonal Paraproteinemia |
|
|
| Primary Mediastinal B-Cell Lymphoma |
|
|
| Lymphoplasmacytic Lymphoma |
|
|
| Lymphoid Interstitial Pneumonia |
|
|
| Richter'S Syndrome |
|
|
| Lymphoma, Non-Hodgkin, Familial |
|
|
| Cerebral Lymphoma |
|
|
| Hairy Cell Leukemia |
|
|
| B-Cell Prolymphocytic Leukemia |
|
|
| Myeloma, Multiple |
|
|
| Burkitt Lymphoma |
|
|
| Appendicitis |
|
|
| Gamma Heavy Chain Disease |
|
|
| Congenital Hypogammaglobulinemia |
|
|
| Lobomycosis |
|
|
| Transient Hypogammaglobulinemia Of Infancy |
|
|
| Lymphoma |
|
|
| Spleen Cancer |
|
|
| Cd40 Ligand Deficiency |
|
|
| Adult Lymphoma |
|
|
| Intellectual Developmental Disorder, Autosomal Dominant 36 |
|
|
| Splenic Marginal Zone Lymphoma |
|
|
| Autoimmune Disease Of Blood |
|
|
| Refractory Hematologic Cancer |
|
|
| Leukocyte Disease |
|
|
| Eye Lymphoma |
|
|
| Leukemia, Chronic Lymphocytic |
|
|
| Acute Biphenotypic Leukemia |
|
|
| Marginal Zone B-Cell Lymphoma |
|
|
| Extramedullary Plasmacytoma |
|
|
| Severe Combined Immunodeficiency |
|
|
| Hemorrhagic Cystitis |
|
|
| Systemic Scleroderma |
|
|
| Good Syndrome |
|
|
| Monoclonal Gammopathy Of Uncertain Significance |
|
|
| Plasma Protein Metabolism Disease |
|
|
| Primary Thrombocytopenia |
|
|
| Autoimmune Disease Of Peripheral Nervous System |
|
|
| Anemia, Autoimmune Hemolytic |
|
|
| Refractory Hairy Cell Leukemia |
|
|
| Central Nervous System Hematologic Cancer |
|
|
| Intraocular Lymphoma |
|
|
| Chickenpox |
|
|
| Adult Acute Lymphocytic Leukemia |
|
|
| Invasive Malignant Thymoma |
|
|
| Speech And Communication Disorders |
|
|
| Central Nervous System Lymphoma |
|
|
| Mature B-Cell Neoplasm |
|
|
| Progressive Multifocal Leukoencephalopathy |
|
|
| Agammaglobulinemia, X-Linked |
|
|
| T Cell Deficiency |
|
|
| Mantle Cell Lymphoma |
|
|
| Igg4-Related Disease |
|
|
| Thrombocytopenia Due To Platelet Alloimmunization |
|
|
| Non-Secretory Myeloma |
|
|
| Transverse Myelitis |
|
|
| Immunoglobulin Alpha Deficiency |
|
|
| Pneumocystosis |
|
|
| Cardiomyopathy, Dilated, 1c, With Or Without Left Ventricular Noncompaction |
|
|
| Evans' Syndrome |
|
|
| Immunodeficiency With Hyper-Igm, Type 1 |
|
|
| Capillary Leak Syndrome |
|
|
| Bone Marrow Cancer |
|
|
| Blood Protein Disease |
|
|
| Splenic Disease |
|
|
| Waldenstroem'S Macroglobulinemia |
|
|
| Herpangina |
|
|
| Multicentric Castleman Disease |
|
|
| Primary Progressive Multiple Sclerosis |
|
|
| Combined Immunodeficiency |
|
|
| Smoldering Myeloma |
|
|
| Autoimmune Disease Of Exocrine System |
|
|
| Lymphatic System Cancer |
|
|
| Inflammatory Bowel Disease 29 |
|
|
| Lymphatic System Disease |
|
|
| West Nile Encephalitis |
|
|
| Potocki-Shaffer Syndrome |
|
|
| Adenoid Hypertrophy |
|
|
| Deficiency Anemia |
|
|
| Blood Platelet Disease |
|
|
| Plasma Cell Leukemia |
|
|
| Capillary Disease |
|
|
| Hypersensitivity Reaction Type Iv Disease |
|
|
| Toxic Encephalopathy |
|
|
| Hemophagocytic Lymphohistiocytosis |
|
|
| Blood Coagulation Disease |
|
|
| Pfeiffer Syndrome |
|
|
| Autoimmune Disease Of Central Nervous System |
|
|
| Primary Bacterial Infectious Disease |
|
|
| Childhood Leukemia |
|
|
| Autoimmune Disease Of Musculoskeletal System |
|
|
| Exanthem |
|
|
| Middle Ear Disease |
|
|
| Lymphoma, Mucosa-Associated Lymphoid Type |
|
|
| Immune System Disease |
|
|
| Diffuse Large B-Cell Lymphoma |
|
|
| Pancytopenia |
|
|
| Salivary Gland Disease |
|
|
| Cranial Nerve Disease |
|
|
| Thymus Gland Disease |
|
|
| Omenn Syndrome |
|
|
| Spinal Cord Disease |
|
|
| Optic Nerve Disease |
|
|
| Plasma Cell Neoplasm |
|
|
| Autoimmune Lymphoproliferative Syndrome |
|
|
| Leukemia, Acute Myeloid |
|
|
| Peripheral Nervous System Disease |
|
|
| Celiac Disease 1 |
|
|
| Myelodysplastic Syndrome |
|
|
| Skin Disease |
|
|
| Connective Tissue Disease |
|
|
| Behcet Syndrome |
|
|
| Acute Promyelocytic Leukemia |
|
|
| Nervous System Disease |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | CD19 | MGD | MGI:88319 |
| Rattus norvegicus | CD19 | RGD | RGD:1309086 |
| Bos taurus | CD19 | VGNC | VGNC:27007 |
| Canis familiaris | CD19 | VGNC | VGNC:38935 |
| Felis catus | CD19 | VGNC | VGNC:80557 |
| Macaca mulatta | CD19 | VGNC | VGNC:70754 |
| Others | CD19 | NCBI |