Description: Recombinant Human ARRB1 Protein is produced by E.coli expression system and the target gene encoding Met1-Arg418 is expressed with a 6His tag at the C-terminus. Form: Lyophilized from a 0.2 μM filtered solution of 20mM PB, 150mM NaCl, pH 7.2. Gene Symbol: ARRB1 Alternative Names: ARR1; Beta-arrestin-1; Arrestin beta-1Entrez Gene (Human): 408SwissProt (Human): P49407Purity : Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure : MGDKGTRVFK KASPNGKLTV YLGKRDFVDH IDLVDPVDGV VLVDPEYLKE RRVYVTLTCA FRYGREDLDV LGLTFRKDLF VANVQSFPPA PEDKKPLTRL QERLIKKLGE HAYPFTFEIP PNLPCSVTLQ PGPEDTGKAC GVDYEVKAFC AENLEEKIHK RNSVRLVIRK VQYAPERPGP QPTAETTRQF LMSDKPLHLE ASLDKEIYYH GEPISVNVHV TNNTNKTVKK IKISVRQYAD ICLFNTAQYK CPVAMEEADD TVAPSSTFCK VYTLTPFLAN NREKRGLALD GKLKHEDTNL ASSTLLREGA NREILGIIVS YKVKVKLVVS RGGLLGDLAS SDVAVELPFT LMHPKPKEEP PHREVPENET PVDTNLIELD TNDDDIVFED FARQRLKGMK DDKEEEEDGT GSPQLNNRLE HHHHHH Directions for Use : Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control : Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Storage/Stability : Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.