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Recombinant Human Inter-Cellular Adhesion Molecule 1 (ICAM-1)
Purified No Carrier Protein
(BB2, CD54, P3.58)
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Prod. No.:I-580
SourceNSO Cells
Pkg. Size:50 µg, 200 µg, 1 mg
Storage:-20°C to -70°C Detailed storage instructions below.
Description
Background:
Intercellular adhesion molecule-1 (ICAM-1) is one of an important cell adhesion molecules (CAMs) family transmembrane glycoprotein1 and is critical for the firm arrest and transmigration of leukocytes out of blood vessels and into tissues. ICAM-1 is constitutively present on endothelial cells, but its expression is increased by proinflammatory cytokines.2 ICAM-1 is a marker of endothelial dysfunction leading to damaging vascular disorders, in umbilical and placental vascular tissue of gestational pregnancies.3

Source
NSO Cells
Molecular Weight
The predicted molecular weight of Recombinant Human ICAM-1 is Mr 76 kDa (monomer). However, the actual molecular weight as observed by migration on SDS Page is Mr 110-125 kDa.
State of Matter
Lyophilized
Formulation
This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives.
Purity
>95% by SDS-PAGE and analyzed by silver stain.
Storage and Stability
This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.
Endotoxin
<1.0 EU/µg as determined by the LAL method
Biological Activity
The biological activity of Human ICAM-1 was determined by the ability of the immobilized protein to support the adhesion of HSB2 cells, a human peripheral blood acute lymphoblastic leukemia cell line. When 5 x 104 cells/well are added to recombinant human ICAM/Fc coated plates (12.5 μg/ml with 100 μl/well), approximately 60 - 70% will adhere after PMA stimulation for 1 hour at RT.
Each investigator should determine their own optimal working dilution for specific applications.
Amino Acid Sequence
qts vspskvilpr ggsvlvtcst scdqpkllgi etplpkkell lpgnnrkvye lsnvqedsqp mcysncpdgq staktfltvy wtpervelap lpswqpvgkn ltlrcqvegg apranltvvl lrgekelkre pavgepaevt ttvlvrrdhh ganfscrtel dlrpqglelf entsapyqlq tfvlpatppq lvsprvlevd tqgtvvcsld glfpvseaqv hlalgdqrln ptvtygndsf sakasvsvta edegtqrltc avilgnqsqe tlqtvtiysf papnviltkp evsegtevtv kceahprakv tlngvpaqpl gpraqlllka tpedngrsfs csatlevagq lihknqtrel rvlygprlde rdcpgnwtwp ensqqtpmcq awgnplpelk clkdgtfplp igesvtvtrd legtylcrar stqgevtrev tvnvlsprye iegrmdpksc dkthtcppcp apellggpsv flfppkpkdt lmisrtpevt cvvvdvshed pevkfnwyvd gvevhnaktk preeqynsty rvvsvltvlh qdwlngkeyk ckvsnkalpa piektiskak gqprepqvyt lppsrdeltk nqvsltclvk gfypsdiave wesngqpenn ykttppvlds dgsfflyskl tvdksrwqqg nvfscsvmhe alhnhytqks lslspgk



Country of Origin
USA
References
1. Li S et al. (2009) Biochem Biophys Res Commun. 381: 459
2. Wolf S et al. (2009) Pharmacol Rep 61: 22
3. Ozcan U et al. (2009) Arch Gynecol Obstet.

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