SILu™Prot SOST, Sclerostin human
SIGMA/MSST0047 - recombinant, expressed in HEK 293 cells, SIL MS Protein Standard, 13C and 15N-labeled
Product Type: Chemical
SILuProt products are stable isotope-labeled full length proteins designed to be used as mass spectrometry internal standards for quantitative proteomics. Introduction of an internal SILuProt standard at the beginning of the MS workflow minimizes variations in quantification due to protein extraction, fractionation, enrichment, proteolysis and analysis
| assay | ≥98% (SDS-PAGE) |
| biological source | human |
| form | lyophilized powder |
| potency | ≥98% Heavy amino acids incorporation efficiency by MS |
| Quality Level | 200  |
| recombinant | expressed in HEK 293 cells |
| storage temp. | −20°C |
| suitability | suitable for mass spectrometry (standard) |
| tag | 8-His tagged |
| technique(s) | mass spectrometry (MS): suitable |
| UniProt accession no. | Q9BQB4  |
| Biochem/physiol Actions: | Sclerostin is a secreted Wnt signaling antagonist produced almost exclusively by osteocytes. It can selectively inhibit Wnt/ β-catenin, suppressing the activity of osteoblasts as well as the viability of osteoblasts and osteocytes. Lower sclerostin levels are associated with lower bone mineral content and bone. It was demonstrated that greater total limb bone mineral content was significantly associated with greater circulating levels of sclerostin. In addition, circulating sclerostin is a biomarker of osteoporosis severity in long-term, chronic paraplegia. Serum sclerostin was associated significantly, independently, and positively with bone mineral density of both cortical and cancellous bone. Sclerostin is considered to be one of the factors associated with chronic kidney disease-mineral and bone disorder in hemodialysis patients. |
| General description: | SILu™Prot SOST is a recombinant, stable isotope-labeled human SOST which incorporates [13C6, 15N4]-Arginine and [13C6, 15N2]-Lysine. Expressed in human 293 cells, it is designed to be used as an internal standard for bioanalysis of SOST in mass-spectrometry. SILu™Prot SOST is a protein of 201 amino acids (including a N-terminal polyhistidine and tag), with a calculated molecular mass of 22.8 kDa. |
| Legal Information: | SILu is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | HHHHHHHHGGQQGWQAFKNDATEII |
| Physical form: | Supplied as a lyophilized powder containing phosphate buffered saline. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 23201100 |