{"product_id":"recombinant-rat-sdf-1β-rrtsdf-1β-cxcl12-pr3013","title":"Recombinant Rat SDF-1β (rRtSDF-1β\/CXCL12 ) - PR3013","description":"\u003cp\u003eRecombinant Rat SDF-1β (rRtSDF-1β\/CXCL12 )\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: PR3013-2, PR3013-10\u003c\/p\u003e\n\n\u003cp\u003eSizes: 2µg, 10µg\u003c\/p\u003e\n\n\u003cp\u003eSource: Escherichia coli\u003c\/p\u003e\n\n\u003cp\u003eMolecular Weight: 8.4 kDa, a single non-glycosylated polypeptide chain containing 72 amino acids.\u003c\/p\u003e\n\n\u003cp\u003ePurity: \u0026gt;97% by SDS-PAGE and HPLC analyses.\u003c\/p\u003e\n\n\u003cp\u003eBiological Activity: Fully biologically active when compared to standard. Determined by its ability to chemoattract human monocytes using a concentration range of 100.0-200.0 ng\/ml, corresponding to a Specific Activity of ＞5 x 103 IU\/mg.\u003c\/p\u003e\n\n\u003cp\u003ePhysical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized from a 0.2mm filtered concentrated solution in 20mM PB, pH 7.4, 150mM NaCl.\u003c\/p\u003e\n\n\u003cp\u003eAA Sequence: KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKSNNRQVC IDPKLKWIQE YLDKALNKRL KM\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: Less than 1EU\/mg of rRtSDF-1β\/CXCL12 as determined by LAL method.\u003c\/p\u003e\n\n\u003cp\u003eReconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg\/mL. Stock solutions should be apportioned into working aliquots and stored at \u0026lt;-20°C. Further dilutions should be made in appropriate buffered solutions.\u003c\/p\u003e\n\n\u003cp\u003eStorage: This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze\/thaw cycles.\u003c\/p\u003e\n\n\u003cp\u003eUsage: This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. NOT FOR HUMAN USE. Made in China\u003c\/p\u003e\n\n\u003cp\u003eDescription: SDF-1α and β are stromal derived CXC chemokines, and signal through the CXCR4 receptor. SDF-1α and β chemoattract B and T cells, and have been shown to induce migration of CD34+ stem cells. Additionally, the SDF-1 proteins exert HIV suppressive activity in cells expressing the CXCR4 receptor.\u003c\/p\u003e","brand":"BioWorld","offers":[{"title":"2µg","offer_id":42882223145139,"sku":"PR3013-2","price":260.23,"currency_code":"CAD","in_stock":true},{"title":"10µg","offer_id":42882223177907,"sku":"PR3013-10","price":490.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/thumbnail_d1447bac803ec9be_11-14-09-19-51_bbe33b43-2106-4f78-85cf-39dbcda68e4c.jpg?v=1702049560","url":"https:\/\/afsbio.com\/products\/recombinant-rat-sdf-1%ce%b2-rrtsdf-1%ce%b2-cxcl12-pr3013","provider":"AFSBio Inc.","version":"1.0","type":"link"}