beta Arrestin 1 (ARRB1) (NM_004041) Human Recombinant Protein

Specifications

Product Data
Species	Human
Expression Host	E. coli
Expression cDNA Clone or AA Sequence	Protein Sequence (showhide) Met1-Arg418
Tag	C-His
Predicted MW	48.1 kDa
Concentration	lot specific
Purity	>95% as determined by SDS-PAGE and Coomassie blue staining
Buffer	Lyophilized from a 0.2 um filtered solution of PBS, pH 7.4.
Storage	Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Stability	Stable for at least 6 months from date of receipt under proper storage and handling conditions.
Endotoxin	< 0.1 EU per µg protein as determined by LAL test
Reference Data
RefSeq	NP_004032
Locus ID	408
UniProt ID	P49407
Cytogenetics	11q13.4
Synonyms	ARB1; ARR1
Summary	Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. Arrestin beta 1 is a cytosolic protein and acts as a cofactor in the beta-adrenergic receptor kinase (BARK) mediated desensitization of beta-adrenergic receptors. Besides the central nervous system, it is expressed at high levels in peripheral blood leukocytes, and thus the BARK/beta-arrestin system is believed to play a major role in regulating receptor-mediated immune functions. Alternatively spliced transcripts encoding different isoforms of arrestin beta 1 have been described. [provided by RefSeq, Jan 2011]
Protein Families	Druggable Genome
Protein Pathways	Chemokine signaling pathway, Endocytosis, MAPK signaling pathway

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