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Sialoprotein, Bone Active Protein | IBSP active protein

Sialoprotein, Bone, Recombinant, Human (BSP)

Gene Names
IBSP; BSP; BNSP; SP-II; BSP-II
Purity
>90%, as determined by SDS-PAGE andvisualized by silver stain.
Synonyms
Sialoprotein; Bone; Recombinant; Human (BSP); IBSP active protein
Ordering
For Research Use Only!
Host
Chinese hamster ovary (CHO) cells
Purity/Purification
>90%, as determined by SDS-PAGE andvisualized by silver stain.
Form/Format
Supplied as a lyophilized powder from20mM MES, 0.5M sodium chloride, pH6.5. Reconstitute with sterile PBS to0.1mg/ml.
Application Notes
Recombinant human BSP migrates as an ~75-90kD protein in SDS-PAGE under reducing conditions.
Endotoxin
<1.0EU/ug (LAL).
Activity
Measured by the ability of the immobilizedprotein to support the adhesion of MCF-7cells. When 5x10e4 MCF-7 cells/well areadded to recombinant human IBSP-coatedplates (3ug/ml with 100ul/well),~60-80% will adhere after 30 minutes at 37 degree C. Optimal concentration depends on cell type.
Molecular Mass
Recombinant human BSP migrates as an ~75-90kD protein in SDS-PAGE under reducing conditions.
Preparation and Storage
Lyophilized powder may be stored at-20 degree C. Stable for 6 months at -20 degree C.Reconstitute with sterile PBS. Aliquot toavoid repeated freezing and thawing. Storeat -20 degree C. For maximum recovery ofproduct, centrifuge the original vial afterthawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Related Product Information for IBSP active protein
IBSP (integrin-binding sialoprotein; also BSP or bone sialoprotein (II)) is a 55-75kD, secreted, variably glycosylated, monomeric noncollagenous member of the SIBLING family of extracellular matrix (ECM) proteins. It is principally associated with the early stages of bone mineralization. BSP is synthesized as a 317 amino acid (aa) precursor that contains a 16aa signal sequence and a 301aa mature region. BSP is highly glycosylated, sulfated, and phosphorylated. Phosphorylation may impact HAp growth, while carbohydrate may regulate cell adhesion. Mature human BSP is 70%, 72%, 78%, and 72% aa identical to porcine, rat, canine, and mouse BSP, respectively. BSP is synthesized by megakaryocytes/platelets, osteoblasts, osteocytes, odontoblasts, osteoclasts, and bone marrow stromal cells.
Product Categories/Family for IBSP active protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
UniProt Accession #
Molecular Weight
34.7Kd
NCBI Official Full Name
sialoprotein
NCBI Official Synonym Full Names
integrin-binding sialoprotein
NCBI Official Symbol
IBSP
NCBI Official Synonym Symbols
BSP; BNSP; SP-II; BSP-II
NCBI Protein Information
bone sialoprotein 2; BSP II; bone sialoprotein II; cell-binding sialoprotein
UniProt Protein Name
Bone sialoprotein 2
Protein Family
UniProt Gene Name
IBSP
UniProt Synonym Gene Names
BNSP; BSP II
UniProt Entry Name
SIAL_HUMAN

NCBI Description

The protein encoded by this gene is a major structural protein of the bone matrix. It constitutes approximately 12% of the noncollagenous proteins in human bone and is synthesized by skeletal-associated cell types, including hypertrophic chondrocytes, osteoblasts, osteocytes, and osteoclasts. The only extraskeletal site of its synthesis is the trophoblast. This protein binds to calcium and hydroxyapatite via its acidic amino acid clusters, and mediates cell attachment through an RGD sequence that recognizes the vitronectin receptor. [provided by RefSeq, Jul 2008]

Uniprot Description

Sialoprotein-2: Binds tightly to hydroxyapatite. Appears to form an integral part of the mineralized matrix. Probably important to cell-matrix interaction. Promotes Arg-Gly-Asp-dependent cell attachment.

Protein type: Secreted; Cell adhesion; Motility/polarity/chemotaxis; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 4q21.1

Cellular Component: extracellular space; membrane; extracellular region

Biological Process: osteoblast differentiation; extracellular matrix organization and biogenesis; biomineral formation; cell adhesion

Research Articles on IBSP

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Product Notes

The IBSP ibsp (Catalog #AAA635865) is an Active Protein produced from Chinese hamster ovary (CHO) cells and is intended for research purposes only. The product is available for immediate purchase. Recombinant human BSP migrates as an ~75-90kD protein in SDS-PAGE under reducing conditions. Researchers should empirically determine the suitability of the IBSP ibsp for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Sialoprotein, Bone, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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