{"product_id":"recombinant-human-spesp1-protein-his-tag-pksh033075","title":"Recombinant Human SPESP1 Protein (His Tag) - PKSH033075","description":"\u003cp\u003eRecombinant Human SPESP1 Protein (His Tag)\u003c\/p\u003e\n\n\u003cp\u003eSizes: 10μg, 50μg\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: PKSH033075-10, PKSH033075-50\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eAbbreviation: SPESP1\u003c\/p\u003e\n\n\u003cp\u003eTarget Synonym: Sperm Equatorial Segment Protein 1; ESP; Equatorial Segment Protein; SP-ESP; Glycosylated 38 kDa Sperm Protein C-7\/8; SPESP1\u003c\/p\u003e\n\n\u003cp\u003eUNIProt ID: Q6UW49\u003c\/p\u003e\n\n\u003cp\u003eResearch Areas: Developmental Biology\u003c\/p\u003e\n\n\u003cp\u003eTarget Species: Human\u003c\/p\u003e\n\n\u003cp\u003eExpression Host: HEK293 Cells\u003c\/p\u003e\n\n\u003cp\u003eFusion Tag: C-6His\u003c\/p\u003e\n\n\u003cp\u003eAccession: Q6UW49\u003c\/p\u003e\n\n\u003cp\u003eBackground: Sperm Equatorial Segment Protein 1 (SPESP1) is a member of the SPESP1 family. SPESP1 is highly expressed in the testis, where it is localized to the acrosome of postmeiotic stages of spermiogenesis; it is expressed at lower levels in the placenta and fetal lung. SPESP1 is involved in the multicellular organisimal development. Disruption of SPESP1 leads to abnormal distribution of sperm proteins resulting in a detached membrane from the equatorial segment and less fertile sperm. SPESP1 may interact with IZUMO1 and MN9 antigen and it contains an N-glycosylation site as well as several cAMP-dependent kinase, protein kinase C, and casein kinase II consensus phosphorylation sites.\u003c\/p\u003e\n\n\u003cp\u003eSequence: Tyr20-Tyr350\u003c\/p\u003e\n\n\u003cp\u003ePurity: \u0026gt; 90 % as determined by reducing SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH7.4.\u003cbr\u003e\nNormally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.\u003cbr\u003e\nPlease refer to the specific buffer information in the printed manual.\u003c\/p\u003e\n\n\u003cp\u003eReconstitution: Please refer to the printed manual for detailed information.\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: \u0026lt; 1.0 EU per μg of the protein as determined by the LAL method.\u003c\/p\u003e\n\n\u003cp\u003eCalculated MW: 37.9 kDa\u003c\/p\u003e\n\n\u003cp\u003eObserved MW: 58 kDa\u003c\/p\u003e\n\n\u003cp\u003eStorage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at \u0026lt; -20℃ for 3 months.\u003c\/p\u003e\n\n\u003cp\u003eShipping: This product is provided as lyophilized powder which is shipped with ice packs.\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"Elabscience","offers":[{"title":"10μg","offer_id":43068816785587,"sku":"PKSH033075-10","price":249.2,"currency_code":"CAD","in_stock":true},{"title":"50μg","offer_id":43068816818355,"sku":"PKSH033075-50","price":732.2,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/logo_new_f7f5c6d0-c587-406a-8835-b146058952c0.png?v=1708597866","url":"https:\/\/afsbio.com\/products\/recombinant-human-spesp1-protein-his-tag-pksh033075","provider":"AFSBio Inc.","version":"1.0","type":"link"}