Stem Cell Factor (KITLG) Active Protein | SCF active protein

Recombinant Mouse Stem Cell Factor (KITLG)

Cat. Num. AAA4159971

• Gene Names: Kitl; Gb; SF; Sl; Clo; Con; Mgf; SCF; SLF; blz; Kitlg; contrasted
• Purity: >95% as determined by SDS-PAGE
• Synonyms: Stem Cell Factor (KITLG); Recombinant Mouse Stem Cell Factor (KITLG); Kit ligand; c-Kit ligand; Hematopoietic growth factor KL; Mast cell growth factor; MGF; Steel factor; SCF active protein

• Host: E Coli
• Purity/Purification: >95% as determined by SDS-PAGE
• Form/Format: Lyophilized from a 0.2 um filtered solution in Tris and NaCl (pH 8.0)
• Sequence Length: 273

• Bioactivity: The ED50 as determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is < 2.0 ng/mL
• Endotoxin Level: <1.0 EU/ug of recombinant protein as determined by the LAL method
• Reconstitution: A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
• Preparation and Storage: The lyophilized protein is stable for at least one year from date of receipt at-70 degree C. Upon reconstitution, this cytokine can be stored in working aliquots at 2-8 degree C for one month, or at-20 degree C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.

Testing Data

Related Product Information for SCF active protein

SCF is a stromal cell-derived cytokine synthesized by fibroblasts and other cell types. SCF promotes proliferation and early differentiation of cells at the level of multipotential stem cells. It has been suggested that SCF is essential for optimal production of various hematopoietic lineages. The receptor for SCF, designated SCFR (CD117), is the oncogene designated as KIT. The biological activities of SCF are synergised considerably by GM-CSF and G-CSF, and also by IL7, EPO and some other growth and differentiation factors. In combination with IL7, SCF stimulates the proliferation of pre-B cells. SCF is also a potent chemoattractant for cells, such as mast cells, expressing the KIT receptor.

NCBI and Uniprot Product Information

• NCBI GI #: 7305267
• NCBI GeneID: 17311
• NCBI Accession #: NP_038626.1
• NCBI GenBank Nucleotide #: NP_038626.1
• UniProt Accession #: P20826
• Molecular Weight: 18.9 kDa
• NCBI Official Full Name: kit ligand isoform 1
• NCBI Official Synonym Full Names: kit ligand
• NCBI Official Symbol: Kitl
• NCBI Official Synonym Symbols: Gb; SF; Sl; Clo; Con; Mgf; SCF; SLF; blz; Kitlg; contrasted
• NCBI Protein Information: kit ligand
• UniProt Protein Name: Kit ligand
• UniProt Gene Name: Kitlg
• UniProt Synonym Gene Names: Kitl; Mgf; Sl; Slf; MGF; SCF; sKITLG
• UniProt Entry Name: SCF_MOUSE

Uniprot Description

SCF: Ligand for the receptor-type protein-tyrosine kinase KIT. Plays an essential role in the regulation of cell survival and proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration and function, and in melanogenesis. KITLG/SCF binding can activate several signaling pathways. Promotes phosphorylation of PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase, and subsequent activation of the kinase AKT1. KITLG/SCF and KIT also transmit signals via GRB2 and activation of RAS, RAF1 and the MAP kinases MAPK1/ERK2 and/or MAPK3/ERK1. KITLG/SCF and KIT promote activation of STAT family members STAT1, STAT3 and STAT5. KITLG/SCF and KIT promote activation of PLCG1, leading to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5- trisphosphate. KITLG/SCF acts synergistically with other cytokines, probably interleukins. Homodimer, non-covalently linked (Probable). Heterotetramer with KIT, binding two KIT molecules; thereby mediates KIT dimerization and subsequent activation by autophosphorylation. Belongs to the SCF family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral

Cellular Component: extracellular space; cytoskeleton; membrane; cytoplasm; extracellular region; integral to membrane; plasma membrane

Molecular Function: protein binding; growth factor activity; cytokine activity; stem cell factor receptor binding

Biological Process: embryonic hemopoiesis; positive regulation of leukocyte migration; germ cell programmed cell death; germ cell development; positive regulation of MAP kinase activity; positive regulation of peptidyl-tyrosine phosphorylation; ovarian follicle development; negative regulation of mast cell apoptosis; positive regulation of melanocyte differentiation; positive regulation of cell proliferation; positive regulation of myeloid leukocyte differentiation; positive regulation of Ras protein signal transduction; cell adhesion; neural crest cell migration; positive regulation of DNA replication; negative regulation of apoptosis