Immunogen
Purified recombinant fragment of human Reg Iα fused with hIgGFc tag expressed in HEK293 cell line.
Specificity
Reg Iα Monoclonal Antibody detects endogenous levels of Reg Iα protein.
Formulation
Ascitic fluid containing 0.03% sodium azide,0.5% BSA, 50%glycerol.
Dilution rate
Immunohistochemistry: 1/200 - 1/1000. Immunofluorescence: 1/200 - 1/1000. ELISA: 1/10000. Not yet tested in other applications.
Purification process (Immunogen)
Affinity purification
Background
This gene is a type I subclass member of the Reg gene family. The Reg gene family is a multigene family grouped into four subclasses, types I, II, III and IV, based on the primary structures of the encoded proteins. This gene encodes a protein that is secreted by the exocrine pancreas. It is associated with islet cell regeneration and diabetogenesis and may be involved in pancreatic lithogenesis. Reg family members REG1B, REGL, PAP and this gene are tandemly clustered on chromosome 2p12 and may have arisen from the same ancestral gene by gene duplication. [provided by RefSeq, Jul 2008],
Function
caution:The composition of the O-linked carbohydrate on Thr-27 is complex and varied. In the crystallographic structure, the attached sugar appears to be N-acetylglucosamine, typical of an intracellular protein, rather than N-acetylgalactosamine.,developmental stage:High expression levels in fetal and infant brains; much lower in adult brains.,disease:Alzheimer disease and Down syndrome patients show enhanced expression of PSP-related transcripts and intraneuronal accumulation of PSP-like proteins in their brains.,function:Might act as an inhibitor of spontaneous calcium carbonate precipitation. May be associated with neuronal sprouting in brain, and with brain and pancreas regeneration.,online information:Lithostathine A,similarity:Contains 1 C-type lectin domain.,tissue specificity:In pancreatic acinar cells and, in lower levels, in brain.,
Protein name
Lithostathine-1-alpha
Other name
REG1A; PSPS; PSPS1; REG; Lithostathine-1-alpha; Islet cells regeneration factor; ICRF; Islet of Langerhans regenerating protein; REG; Pancreatic stone protein; PSP; Pancreatic thread protein; PTP; Regenerating islet-derived protein 1-alpha;
Human protein sequence Database
P05451
Mouse protein sequence database
Rat protein sequence database
Cellular localization
Secreted.
Tissue expression
In pancreatic acinar cells and, in lower levels, in brain. Enhanced expression of PSP-related transcripts and intraneuronal accumulation of PSP-like proteins is found in brain from Alzheimer disease and Down syndrome patients.
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