Rhesus REG1B / PSPS2 Protein (His Tag)

REG1B

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Catalog Number	P90163-C08H
Organism Species	Rhesus
Host	Human Cells
Synonyms	REG1B
Molecular Weight	The recombinant rhesus REG1B comprises 155 amino acids and has a calculated molecular mass of 17.7 KDa.
predicted N	Gln16
SDS-PAGE
Purity	(56.5+40) % as determined by SDS-PAGE
Protein Construction	A DNA sequence encoding the rhesus REG1B (NP_001181497.1) (Met1-Asn166) was expressed with a polyhistidine tag at the C-terminus.
Bio-activity
Research Area	Signaling |Signal Transduction |Cytoskeleton / ECM |Cell Adhesion |Lectin |C-tyep lectin |
Formulation	Lyophilized from sterile PBS, pH 7.4. 1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background	Regenerating gene (Reg), first isolated from a regenerating islet cDNA library, encodes a secretory protein with a growth stimulating effect on pancreatic beta cells, and could be associated with fibrocalculous pancreatopathy. Reg and Reg-related genes which were expressed in various organs have been revealed to constitute a multigene family, the Reg family consisting of four subtypes (types I, II, III, IV) and are involved in cancers and neurodegenerative diseases. Regenerating islet-derived 1 beta (REG1B), also known as Lithostathine-1-beta and Pancreatic stone protein 2 (PSPS2), is a types I Reg protein and contains one typical C-type lectin domain. REG1B is a 166-amino acid protein which has 22 amino acid substitutions in comparison with the previously isolated human REG1A, and it is was expressed only in pancreas. REG1B Is normally found in the exocrine pancreas, whereas in other tissues it appears either only under pathological conditions, such as Alzheimer's disease (brain), cancer (colon), or during regeneration such as neuronal sprouting in brain and pancreas regeneration. REG1B might act as an inhibitor of spontaneous calcium carbonate precipitation. The REG1A and REG1B gene and proteins could play different roles in the pancreas.
Reference	Moriizumi S, et al. (1994) Isolation, structural determination and expression of a novel reg gene, human regI beta. Biochim Biophys Acta. 1217(2): 199-202. Sanchez D, et al. (2001) Preferential expression of reg I beta gene in human adult pancreas. Biochem Biophys Res Commun. 284(3): 729-37. Boonyasrisawat W, et al. (2002) Analysis of the reg1alpha and reg1beta gene transcripts in patients with fibrocalculous pancreatopathy. Southeast Asian J Trop Med Public Health. 33(2): 365-72.