Human CellExp™ CD19, Human recombinant

• Catalog number
  9246-25
• Price
  Please ask
• Size
  25 µg

• Synonyms
  CD19, B4, CVID3, MGC12802
• Alternative_names
  CD19, B4, CVID3, MGC12803
• Description
  B-lymphocyte antigen CD20
• Recombinant
  Yes
• Source
  HEK 293 cells
• Purity by SDS PAGE
  >95%
• Assay
  SDS-PAGE
• Purity
  >95%
• Endotoxin Level
  < 1 EU/ug
• Biological activity
  Immobilized FMC63 mAb at 2ug/mL(100uL/well) can bind Human CD19 (20-291), His Tag with a linear range of 0.04-0.6 ug/mL.
• Binding Capacity
  Immobilized FMC63 mAb at 2ug/mL(100uL/well) can bind Human CD19 (20-291), His Tag with a linear range of 0.04-0.6 ug/mL.
• Molecular Weight
  This protein is fused with a 6× His tag at N-terminus and has a calculated MW of 31.6 kDa.
• Storage Temp
  -20°C
• Shipping
  Gel pack
• Shelf Life
  12 months
• Appearance
  Lyophilized
• Physical form description
  Lyophilized
• Reconstitution Instructions
  Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 ug/ml
• Background Information
  B-lymphocyte antigen CD19 is also known as CD19 (Cluster of Differentiation 19), is a single-pass type I membrane protein which contains two Ig-like C2-type (immunoglobulin-like) domains. CD19 is expressed on follicular dendritic cells and B cells. In fact, it is present on B cells from earliest recognizable B-lineage cells during development to B-cell blasts but is lost on maturation to plasma cells. It primarily acts as a B cell co-receptor in conjunction with CD21 and CD81. Upon activation, the cytoplasmic tail of CD19 becomes phosphorylated, which leads to binding by Src-family kinases and recruitment of PI-3 kinase. As on T cells, several surface molecules form the antigen receptor and form a complex on B lymphocytes. The (almost) B cell-specific CD19 phosphoglycoprotein is one of these molecules. The others are CD21 and CD81. These surface immunoglobulin (sIg)-associated molecules facilitate signal transduction. On living B cells, anti-immunoglobulin antibody mimicking exogenous antigen causes CD19 to bind to sIg and internalize with it. The reverse process has not been demonstrated, suggesting that formation of this receptor complex is antigen-induced. This molecular association has been confirmed by chemical studies. Mutations in CD19 are associated with severe immunodeficiency syndromes characterized by diminished antibody production. CD19 has been shown to interact with: CD81, CD82, Complement receptor 2, and VAV2.
• Handling
  Centrifuge the vial prior to opening.
• Usage
  For Research Use Only! Not to be used in humans
• Datasheet
• Properties
  Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
• Additional source
  Recombinants or rec. proteins
• Group
  recombinants

• Gene target
  CellExp™   CD19  
• Gene symbol
  CD19
• Short name
  CellExp™ CD19, recombinant
• Technique
  Recombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. Biovision advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
• Species
  Humans
• Alternative name
  H. sapiens CellExp™ CD19 molecule, H. sapiens Rec.
• Alternative technique
  rec
• Alternative to gene target
  CD19 molecule, B4 and CVID3, CD19 and IDBG-23791 and ENSG00000177455 and 930, protein binding, Cell surfaces, Cd19 and IDBG-209475 and ENSMUSG00000030724 and 12478, CD19 and IDBG-638894 and ENSBTAG00000032122 and

Gene info

• Identity
  HGNC:1633
• Gene
  CD19
• Long gene name
  CD19 molecule
• Synonyms gene name
  • CD19 antigen
• Locus
  16p11.2
• Discovery year
  1991-06-04
• Entrez gene record
  930
• Classification
  • CD molecules
  • Immunoglobulin like domain containing
  • Minor histocompatibility antigens
• VEGA ID
  OTTHUMG00000097049
• Locus Specific Databases
  • CD19base: Mutation registry for CD19 deficiency
  • LRG_35

MeSH Data

• Name
  Primary Cell Culture
• Concept
  Scope note: The initial culturing of cells derived directly from fresh TISSUES.
• Tree numbers
  • E01.370.225.500.223.500
  • E05.200.500.265.500
  • E05.242.223.500
  • E05.481.500.249.500
• Qualifiers
  ethics, trends, veterinary, history, classification, economics, instrumentation, methods, standards, statistics & numerical data

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