LIN28 is a marker of undifferentiated human embryonic stem cells and it increases the productivity of the formation of induced pluripotent stem cells from human fibroblasts. LIN28 acts as a 'translational enhancer and therefore leading specific mRNAs to polysomes and causes an increased protein synthesis. LIN28 binds let-7 pre-miRNA and blocks production of the mature let-7 microRNA in mouse embryonic stem cells.
Recombinant Human LIN28 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 222 amino acids (including 13- residue C-terminal TAT peptide) and having a molecular mass of 24.4kDa.
The LIN28 is purified by proprietary chromatographic techniques.
The LIN28 protein solution was formulated in PBS with 50mM arginine
Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
Greater than 90% as determined by SDS-PAGE (coomassie staining).
Amino acid sequence
GPSVSNQQFA GGCAKAAEEA PEEAPEDAAR AADEPQLLHG AGICKWFNVR MGFGFLSMTA RAGVALDPPV DVFVHQSKLH MEGFRSLKEG EAVEFTFKKS AKGLESIRVT GPGGVFCIGS ERRPKGKSMQ KRRSKGDRCY NCGGLDHHAK ECKLPPQPKK CHFCQSISHM VASCPLKAQQ GPSAQGKPTY FREEEEEIHS PTLLPEAQNG GYGRKKRRQR RR.