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  • MSST0047 - SILuProt SOST, Sclerostin human

MSST0047 Sigma-Aldrich

SILuProt SOST, Sclerostin human

recombinant, expressed in HEK 293 cells, SIL MS Protein Standard, 13C and 15N-labeled

  •  NACRES NA.12



Related Categories Biochemicals and Reagents, Proteins and Derivatives, SILuProt Protein Standards for Quantitative Mass Spectrometry More...
Quality Level   200
biological source   human
recombinant   expressed in HEK 293 cells
assay   ≥98% (SDS-PAGE)
form   lyophilized powder
potency   ≥98% Heavy amino acids incorporation efficiency by MS
application(s)   mass spectroscopy (MS): suitable
conjugate   8-His tagged
suitability   suitable for mass spectrometry (standard)
UniProt accession no.   Q9BQB4
storage temp.   −20°C
Gene Information   human ... SOST(50964)


General description

SILuProt 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. SILuProt SOST is a protein of 201 amino acids (including a N-terminal polyhistidine and tag), with a calculated molecular mass of 22.8 kDa.

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.



Physical form

Supplied as a lyophilized powder containing phosphate buffered saline.

Legal Information

SILu is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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