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S5816

Sigma-Aldrich

Stromal Cell-Derived Factor 1α/pre-B Cell Growth Stimulating Factor from mouse

SDF-1α, recombinant, expressed in E. coli, powder, suitable for cell culture

Synonym(s):

SDF-1α/PBSF

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About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.77

biological source

mouse

Quality Level

recombinant

expressed in E. coli

Assay

>97% (SDS-PAGE)

form

powder

potency

0.15-0.6 ng/mL ED50

quality

endotoxin tested

mol wt

predicted mol wt ~8 kDa

packaging

pkg of 10 μg

storage condition

avoid repeated freeze/thaw cycles

technique(s)

cell culture | mammalian: suitable

impurities

<1 EU/μgtested (LAL test)

UniProt accession no.

storage temp.

−20°C

Gene Information

mouse ... Cxcl12(20315)

General description

Stromal derived factor-1 (SDF-1) is localized to adipocytes.

Application

Stromal Cell-Derived Factor 1α/pre-B Cell Growth Stimulating Factor from mouse has been used in invasion assay. It has also been used to study the SDF-1 release from chitosan-based nanoparticles.

Biochem/physiol Actions

SDF-1α/PBSF, a member of the α (CXC) chemokine family, is a chemoattractant for T lymphocytes and monocytes, but not neutrophils. SDF-1α/PBSF is highly conserved between species, with only one amino acid substitution between the human and mouse proteins. SDF-1α and SDF-1β (together also known as SDF-1α/PBSF) are encoded by a single gene and arise by alternative splicing. The two proteins are identical except for the four amino acid residues that are present in the C-terminal of SDF-1β and absent from SDF-1α..
Stromal derived factor-1 (SDF-1) is an insulin-desensitizing factor, upregulated during both starvation and obesity. Exogenic SDF-1 reduces insulin-mediated signaling and glucose uptake. SDF-1 mediates migration of cortical interneurons and endothelial progenitor cells of the bone marrow through chemotaxis.

Physical form

Lyophilized from a 0.2 μm filtered solution in 30% acetonitrile and 0.1% trifluoroacetic acid containing 0.5 mg bovine serum albumin.

Preparation Note

Recombinant Mouse Stromal Cell-Derived Factor 1α (SDF-1α)/Pre-B Cell Growth Stimulating Factor (PBSF) is produced from a DNA sequence encoding the mature mouse SDF-1α protein sequence (amino acid residues 22-89) expressed in Escherichia coli. Recombinant mouse SDF-1α (68 amino acids) has a predicted molecular mass of approximately 8 kDa.

Analysis Note

The biological activity is measured by its ability to chemoattract cultured human lymphocytes and mouse BaF3 cells transfected with human CXCR4.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

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Mobilization of mesenchymal stem cells by stromal cell-derived factor-1 released from chitosan/tripolyphosphate/fucoidan nanoparticles
Huang YC, et al.
Acta Biomaterialia, 8, 1048-1056 (2012)
CXCR4 receptor positive spheroid forming cells are responsible for tumor invasion in vitro
Krohn A, et al.
Cancer Letters, 280, 65-71 (2009)
SDF-1 Is an Autocrine Insulin-Desensitizing Factor in Adipocytes.
Shin J, et al.
Diabetes, 67(6), 1068-1078 (2018)
Yoshiki Omatsu et al.
Immunity, 33(3), 387-399 (2010-09-21)
Hematopoietic stem cells (HSCs) and their lympho-hematopoietic progeny are supported by microenvironmental niches within bone marrow; however, the identity, nature, and function of these niches remain unclear. Short-term ablation of CXC chemokine ligand (CXCL)12-abundant reticular (CAR) cells in vivo did not
The Cytokine CXCL12 Promotes Basket Interneuron Inhibitory Synapses in the Medial Prefrontal Cortex.
Wu PR, et al.
Cerebral Cortex, 27(9), 4303-4313 (2017)

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