Recombinant human SCF protein (Active) (ab259391)
Key features and details
- Expression system: HEK 293 cells
- Purity: >= 95% SDS-PAGE
- Endotoxin level: <= 0.005 Eu/µg
- Active: Yes
- Suitable for: Cell Culture, HPLC, MS, SDS-PAGE, Functional Studies
Description
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Product name
Recombinant human SCF protein (Active)
See all SCF proteins and peptides -
Biological activity
Fully biologically active when compared to standard. ED50 is ≤ 0.9601 ng /ml, corresponding to a specific activity of 1.04x 106 units/mg.
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Purity
>= 95 % SDS-PAGE.
Purity by HPLC >= 95%. -
Endotoxin level
<=0.005 Eu/µg -
Expression system
HEK 293 cells -
Accession
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Protein length
Protein fragment -
Animal free
No -
Carrier free
Yes -
Nature
Recombinant -
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Species
Human -
Sequence
EGICRNRVTN NVKDVTKLVA NLPKDYMITL KYVPGMDVLP SHCWISEMVV QLSDSLTDLL DKFSNISEGL SNYSIIDKLV NIVDDLVECV KENSSKDLKK SFKSPEPRLF TPEEFFRIFN RSIDAFKDFV VASETSDCVV SSTLSPEKDS RVSVTKPFML PPVAA -
Predicted molecular weight
19 kDa -
Molecular weight information
M+1.15 Da (calc MW 18586.85 Da) -
Amino acids
26 to 190 -
Additional sequence information
N-terminal glycine. Soluble KIT ligand domain.
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Specifications
Our Abpromise guarantee covers the use of ab259391 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Applications
Cell Culture
HPLC
Mass Spectrometry
SDS-PAGE
Functional Studies
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Form
Lyophilized -
Additional notes
This protein is filter sterilised prior to aliquoting and lyophilisation. All aliquoting and lyophilisation steps are performed in a sterile environment
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Concentration information loading...
Preparation and Storage
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Stability and Storage
Shipped at Room Temperature. Store at Room Temperature.
Information available upon request.
This product is an active protein and may elicit a biological response in vivo, handle with caution.
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ReconstitutionReconstitute in PBS, aliquot and store at -80 C for 12 months or 4 C for 1 week. Avoid repeated freeze thaw. Lyophilized contents may appear as either a translucent film or a white powder. This variance does not affect the quality of the product.
General Info
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Alternative names
- C kit ligand
- C-kit ligand
- Ckit ligand
see all -
Function
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. -
Involvement in disease
Hyperpigmentation with or without hypopigmentation, familial progressive
Deafness, congenital, unilateral or asymmetric -
Sequence similarities
Belongs to the SCF family. -
Developmental stage
Acts in the early stages of hematopoiesis. -
Post-translational
modificationsA soluble form (sKITLG) is produced by proteolytic processing of isoform 1 in the extracellular domain.
Found in two differentially glycosylated forms, LMW-SCF and HMW-SCF. LMW-SCF is fully N-glycosylated at Asn-145, partially N-glycosylated at Asn-90, O-glycosylated at Ser-167, Thr-168 and Thr-180, and not glycosylated at Asn-97 or Asn-118. HMW-SCF is N-glycosylated at Asn-118, Asn-90 and Asn-145, O-glycosylated at Ser-167, Thr-168 and Thr-180, and not glycosylated at Asn-97.
A soluble form exists as a cleavage product of the extracellular domain. -
Cellular localization
Secreted; Cell membrane and Cytoplasm. Cytoplasm, cytoskeleton. Cell membrane. Cell projection, lamellipodium. Cell projection, filopodium. - Information by UniProt
Images
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Functional Studies - Recombinant human SCF protein (Active) (ab259391)
Fully biologically active when compared to standard. Determined by dose-dependant stimulation of human TF-1 cells. ED50 is ≤ 0.9601 ng /ml, corresponding to a specific activity of 1.04 x 106 units/mg.
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SDS-PAGE - Recombinant human SCF protein (Active) (ab259391)SDS-PAGE analysis of ab259391.
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Mass Spectrometry - Recombinant human SCF protein (Active) (ab259391)M + 0. 9 Da (calc mass 18586.85)
The spectrum was recorded with a 6545XT AdvanceBio LC/Q-TOF (Agilent Technologies) and a MabPac RP column (42.1x50 mm, 4 µm, Thermo Scientific). 5 µL of purified protein was injected and the gradient run from 85 % water:FA (99.9:0.1 v/v) and 15 % acetonitrile:FA (90:9.9:0.1 v/v/v) to 55 % water:FA (99.9:0.1 v/v) and 45 % acetonitrile:FA (90:9.9:0.1 v/v/v) within 3 minutes followed by an isocratic step for another 2.5 min. Flow rate was 0.4 mL/min and the column compartment temperature was 60 °C. Data was analysed and deconvoluted using the Bioconfirm software (Agilent Technologies).
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HPLC - Recombinant human SCF protein (Active) (ab259391)Purity: 95%
The spectrum was recorded using a 1260 Infinity II HPLC system with DAD and a MabPac RP column (3.0x100 mm, 4 µm). 5 µL of purified protein was injected and the gradient run from 80 % water:TFA (99.9:0.1 v/v) and 20 % acetonitrile:water:TFA (90:9.9:0.1 v/v/v) to 20 % water:TFA (99.9:0.1 v/v) and 80 % acetonitrile:water:TFA (90:9.9:0.1 v/v/v) within 3 minutes followed by an isocratic step for another 3 min. Flow rate was 0.5 mL/min and the column compartment temperature was 50 °C.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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SDS download
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Datasheet download
References (0)
ab259391 has not yet been referenced specifically in any publications.