Manufacturer,provider and
supplier of
Recombinant Human Granulocyte Colony Stimulating Factor,G-CSF,GCSF,rHuG-CSF
Source A
DNA sequence encoding the mature human G-CSF protein
sequence was expressed in E. coli.
Molecular Mass The methionyl form of the E. coli expressed mature G-CSF
contains 175 amino acid residues and has a predicted
molecular mass of approximately 18.8kD.
Purity > 97%, as determined by SDS-PAGE and HPLC
method.
Endotoxin Level <10EU/0.3mg of the cytokine as determined by
the LAL method.
Activity Measured in a cell proliferation assay using NFS-60 cell line.The ED50 for this effect is typically 0.02 - 0.06ng/mL.
Formulation Lyophilized from a 0.2µm filtered solution of 10mM acetic
acid containing 50µg of human serum albumin per 1µg of
cytokine.
Reconstitution It is recommended that sterile ddH2O containing at
least 0.1% human serum albumin or bovine serum albumin
be added to the vial to prepare a stock solution of no less
than 1 µg/mL of the cytokine.
Storage Lyophilized samples are stable for greater than six months
from date of receipt at -20 to -70ºC .
Upon reconstitution, this cytokine can be stored under
sterile conditions at 2- 8ºC for up to one month without
detectable loss of activity.
DO NOT FREEZE AFTER RECONSTITUTION! Loss of activity,estimated at 60 - 75%,has been observed upon thawing.
Size and prices 100ug US$200,1.0mg US$1,100
Human granulocyte colony-stimulating factor (G-CSF) is produced by
recombinant DNA technology.In comparison with natural products, its
bioactivity is similar in vivo & in vitro. rHuG-CSF is one of the main
cytokines modulating the granulocytic hematopoiesis in bone marrow. It acts on
the hematologic progenitor cells of granulocyte selectively,promoting its proliferation and differentiation.It enhances the function
and counts of granulocyte in peripheral blood as well.In vitro,G-CSF
stimulates growth, differentiation and functions of cells from the
neutrophil lineage. It also has blast cell growth factor activity and can
synergize with IL-3 to shorten the Go period of early hematopoietic
progenitors. Consistent with its in vitro functions, G-CSF has been
found to play important roles in defense against infection, in
inflammation and repair, and in the maintenance of steady state
hematopoiesis.
FOR RESEARCH USE ONLY. NOT FOR HUMAN USE.
|