Human LIN28 Recombinant Protein (RPPB3860)

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SKU:
RPPB3860
Product type:
Recombinant Protein
Size:
10ug
Species:
Human
Target:
LIN28
Synonyms:
CSDD1
Synonyms:
FLJ12457
Synonyms:
LIN-28
Synonyms:
LIN28A
Source:
Escherichia Coli
Uniprot:
Q9H9Z2
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Description

Product Name:Human LIN28 Recombinant Protein
Product Code:RPPB3860
Size:10µg
Species:Human
Target:LIN28
Synonyms:CSDD1, FLJ12457, LIN-28, LIN28A, Protein lin-28 homolog A, ZCCHC1, Zinc finger CCHC domain-containing protein 1, Lin-28A, LIN28.
Source:Escherichia Coli
Physical Appearance:Sterile filtered colorless solution.
Formulation:The LIN28 protein solution contains 20mM Tris-HCl, pH-8, 10% glycerol and 0.1M NaCl.
Stability:Store at 4°C if entire vial will be used within 2-4 weeks. 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.
Purity:Greater than 90.0% as determined by SDS-PAGE
Amino Acid Sequence:MGSSHHHHHH SSGLVPRGSHRSMGICKWFN VRMGFGFLSM TARAGVALDP PVDVFVHQSK LHMEGFRSLK EGEAVEFTFK KSAKGLESIR VTGPGGVFCI GSERRPKGKS MQKRRSKGDR CYNCGGLDHH AKECKLPPQP KKCHFCQSIS HMVASCPLKA QQGPSAQGKP TYFREEEEEI HSPTLLPEAQ N

LIN28 plays an important role as a 'translational enhancer', leading specific mRNAs to polysomes and therefore increasing the competence of protein synthesis. LIN28 is a marker of undifferentiated human embryonic stem cells and it enhances the efficiency of the formation of induced pluripotent stem (iPS) cells from human fibroblasts. LIN28 binds to the let-7 pre-miRNA and blocks production of the mature let-7 microRNA in mouse embryonic stem cells. Overexpression of LIN28 is associated with human germ-cell tumors.

Recombinant Human LIN28 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 191 amino acids (42-209) and having a molecular mass of 21.1 kDa.LIN28 is expressed with a 23 amino acid His tag fused at N-Terminus and purified by proprietary chromatographic techniques.

UniProt Protein Function:LIN28A: Acts as a 'translational enhancer', driving specific mRNAs to polysomes and thus increasing the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in stabilizing the mRNAs. Binds IGF2 mRNA, MYOD1 mRNA, ARBP/36B4 ribosomal protein mRNA and its own mRNA. Essential for skeletal muscle differentiation program through the translational up-regulation of IGF2 expression. Acts as a suppressor of microRNA (miRNA) biogenesis by specifically binding the precursor let-7 (pre-let- 7), a miRNA precursor. Acts by binding pre-let-7 and recruiting ZCCHC11/TUT4 uridylyltransferase, leading to the terminal uridylation of pre-let-7. Uridylated pre-let-7 miRNAs fail to be processed by Dicer and undergo degradation. Degradation of pre- let-7 in embryonic stem (ES) cells contributes to the maintenance of ES cells. In contrast, LIN28A down-regulation in neural stem cells by miR-125, allows the processing of pre-let-7. Specifically recognizes the 5'-GGAG-3' motif in the terminal loop of pre-let-7. Also recognizes and binds non pre-let-7 pre-miRNAs that contain the 5'-GGAG-3' motif in the terminal loop, leading to their terminal uridylation and subsequent degradation. Monomer. During skeletal muscle differentiation, associated with translation initiation complexes in the polysomal compartment. Directly interacts with EIF3S2. Interaction with NCL is RNA-dependent. Interacts with ZCCHC11/TUT4. Can be negatively regulated by the interaction of microRNAs miR-125a and miR-125b with at least two miRNA responsive elements (miREs) in the 3'-UTR of this gene. These interactions may reduce both translation efficiency and mRNA abundance. Negatively regulated by retinoic acid. Expressed in embryonic stem cells (ES cells), placenta and testis. Belongs to the lin-28 family.
UniProt Protein Details:

Protein type:Nucleolus; RNA-binding; Translation

Chromosomal Location of Human Ortholog: 1p36.11

Cellular Component: cytoplasm; cytosol; nucleus; stress granule

Molecular Function:protein binding; RNA binding

Biological Process: pre-microRNA processing; RNA 3'-end processing; somatic stem cell maintenance; stem cell maintenance

NCBI Summary:This gene encodes a LIN-28 family RNA-binding protein that acts as a posttranscriptional regulator of genes involved in developmental timing and self-renewal in embryonic stem cells. The encoded protein functions through direct interaction with target mRNAs and by disrupting the maturation of certain miRNAs involved in embryonic development. This protein prevents the terminal processing of the LET7 family of microRNAs which are major regulators of cellular growth and differentiation. Aberrant expression of this gene is associated with cancer progression in multiple tissues. [provided by RefSeq, Sep 2015]
UniProt Code:Q9H9Z2
NCBI GenInfo Identifier:74752750
NCBI Gene ID:79727
NCBI Accession:Q9H9Z2.1
UniProt Related Accession:Q9H9Z2
Molecular Weight:22,743 Da
NCBI Full Name:Protein lin-28 homolog A
NCBI Synonym Full Names:lin-28 homolog A
NCBI Official Symbol:LIN28A  
NCBI Official Synonym Symbols:CSDD1; LIN28; LIN-28; ZCCHC1; lin-28A  
NCBI Protein Information:protein lin-28 homolog A
UniProt Protein Name:Protein lin-28 homolog A
UniProt Synonym Protein Names:Zinc finger CCHC domain-containing protein 1
Protein Family:Protein
UniProt Gene Name:LIN28A  
UniProt Entry Name:LN28A_HUMAN
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