ICOS cell lysate
Mouse ICOS HEK293 Overexpression Lysate
Gene Names
Icos; H4; CCLP; AILIM; CRP-1; Ly115
Applications
Western Blot
Synonyms
ICOS; Mouse ICOS HEK293 Overexpression Lysate; Mouse ICOS/AILIM/CD278 HEK293 Cell Lysate (WB positive control); inducible T-cell co-stimulator; Mouse AILIM Overexpression Lysate; Mouse CCLP Overexpression Lysate; Mouse CRP-1 Overexpression Lysate; Mouse H4 Overexpression Lysate; Mouse Ly115 Overexpression Lysate; ICOS cell lysate
Host
HEK293 Cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
355aa
Sequence
Met1-Leu144
Applicable Applications for ICOS cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Mouse
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the mouse Icos (NP_059508.2) (Met1-Leu144) was expressed with the Fc region of rabbit IgG at the C-terminus.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for ICOS cell lysate
Inducible costimulator (ICOS), also called AILIM (Activation-Inducible Lymphocyte Immunomediatory Molecule) is a cell-surface receptor and belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4, and PD-1. The interaction of B7-H2/ICOS plays a critical role in Th cell differentiation, T-B cell interactions which are essential for the germinal center formation, and humoral immune responses, and as well as the production of cytokine IL-4. Also, ICOS is more potent in the induction of IL-10 production, a cytokine important for the suppressive function of T regulatory cells. The B7-1/B7-2--CD28/CTLA-4 and ICOS-B7RP-1 pathway provide key second signals that can regulate the activation, inhibition, and fine-tuning of T-lymphocyte responses. ICOS stimulates both Th1 and Th2 cytokine production but may have a preferential role in Th2 cell development. Moreover, The B7-1/B7-2-CD28/CTLA-4 and ICOS-B7RP-1 pathway has been suggested as being involved in the development of airway inflammation and airway hyperresponsiveness.
This Mouse ICOS overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of ICOS protein from the overexpression lysate was verified.
This Mouse ICOS overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of ICOS protein from the overexpression lysate was verified.
Product Categories/Family for ICOS cell lysate
References
Coyle AJ, et al. (2004) The role of ICOS and other costimulatory molecules in allergy and asthma. Springer Semin Immunopathol. 25(3-4): 349-59.Chen YQ, et al. (2006) CD28/CTLA-4--CD80/CD86 and ICOS--B7RP-1 costimulatory pathway in bronchial asthma. Allergy. 61(1): 15-26.van Berkel ME, et al. (2006) CD28 and ICOS: similar or separate costimulators of T cells Immunol Lett. 105(2): 115-22.
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
Molecular Weight
22,709 Da
NCBI Official Full Name
inducible T-cell costimulator
NCBI Official Synonym Full Names
inducible T cell co-stimulator
NCBI Official Symbol
Icos
NCBI Official Synonym Symbols
H4; CCLP; AILIM; CRP-1; Ly115
NCBI Protein Information
inducible T-cell costimulator
UniProt Protein Name
Inducible T-cell costimulator
Protein Family
UniProt Gene Name
Icos
UniProt Synonym Gene Names
Ailim; CCLP; CRP-1
Uniprot Description
Enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. Essential both for efficient interaction between T and B-cells and for normal antibody responses to T-cell dependent antigens. Does not up-regulate the production of interleukin-2, but superinduces the synthesis of interleukin-10. Prevents the apoptosis of pre-activated T-cells. Plays a critical role in CD40-mediated class switching of immunoglobin isotypes ().
