Mouse anti-Human Lin28 Monoclonal Antibody | anti-Lin28 antibody

Lin28 (Lin-28 Homolog A, Zinc Finger CCHC Domain-containing Protein 1, CSDD1, LIN28A, ZCCHC1) (APC)

Cat. Num. AAA6121029

• Gene Names: LIN28A; CSDD1; LIN28; LIN-28; ZCCHC1; lin-28A
• Reactivity: Human
• Applications: Immunofluorescence, Immunohistochemistry, Western Blot
• Purity: Purified by Protein G Affinity Chromatography
• Synonyms: Lin28; Monoclonal Antibody; Lin28 (Lin-28 Homolog A; Zinc Finger CCHC Domain-containing Protein 1; CSDD1; LIN28A; ZCCHC1) (APC); anti-Lin28 antibody

• Host: Mouse
• Reactivity: Human
• Clonality: Monoclonal
• Isotype: IgG1,k
• Clone Number: 55CT58.12.1
• Purity/Purification: Purified by Protein G Affinity Chromatography
• Form/Format: Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with Allophycocyanin (APC).

• Applicable Applications for anti-Lin28 antibody: FLISA, Immunofluorescence (IF), Immunohistochemistry (IHC), Western Blot (WB)
• Application Notes: FLISA: 1:10000; IHC: 1:50-200; WB: 1:200-2000; Applications are based on unconjugated antibody.
• Immunogen: LIN28A recombinant protein.
• Conjugate: APC
• Special Handling: Light sensitive
• Preparation and Storage: May be stored at 4 degree C for short-term only. For long-term storage, store at -20 degree C with glycerol. Aliquots are stable for at least 6 months at -20 degree C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. Do not freeze APC conjugates. Light sensitive.

Western Blot (WB)

(Western blot analysis of LIN28 recombinant protein by anti-LIN28A Monoclonal Antibody. LIN28 (arrow) was detected using the purified Mab.)

Immunohistochemistry (IHC)

(Formalin-fixed and paraffin-embedded human testis tissue reacted with LIN28A Monoclonal Antibody, which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated.)

Immunohistochemistry (IHC)

(Immunofluorescence analysis of LIN28A Monoclonal Antibody with paraffin-embedded human testis tissue. 0.025 mg/ml primary antibody was followed by PE-conjugated goat anti-mouse lgG (whole molecule). PE emits orange fluorescence.)

Related Product Information for anti-Lin28 antibody

Lin28 is a developmentally regulated RNA binding protein (RBP). It is down regulation is mediated in part by Lin4 and miR-125b, the mammalian micro-RNA homolog of Lin4. It is known to be negatively regulated by retinoic acid and act as a translational enhancer by driving specific mRNAs to polysomes and thus increasing the efficiency of protein synthesis by increasing the number of initiation events per mRNA molecule. Lin28 is necessary and sufficient for selectively blocking the cleavage processing of pri-let-7 miRNAs in embryonic cells (Viswanathan, 2008). Lin28 is a negative regulator of miRNA biogenesis and may play a role in blocking miRNA-mediated differentiation in stem cells and in certain cancers (Viswanathan, 2008). If this degradation does not occur, then normal development of various somatic cells fails. The mechanism by which miR-125b represses Lin28 in mammalian cells appears to involve reductions not only in translational efficiency, but also in mRNA abundance (Wu, 2005). Lin28 has shown to be essential for skeletal muscle differentiation through the translational upregulation of IGF2 expression. It is known to be expressed in testis, placenta, and embryonic stem (ES) cells.

Product Categories/Family for anti-Lin28 antibody

Antibodies; Transcription Factors; Zinc (Ring) Finger

References

Pluripotency factors Lin28 and Oct4 identify a sub-population of stem cell-like cells in ovarian cancer. Peng S, et al. Oncogene, 2010 Apr 8. PMID 20101213. Lin28-mediated post-transcriptional regulation of Oct4 expression in human embryonic stem cells. Qiu C, et al. Nucleic Acids Res, 2010 Mar. PMID 19966271. An epigenetic switch involving NF-kappaB, Lin28, Let-7 MicroRNA, and IL6 links inflammation to cell transformation. Iliopoulos D, et al. Cell, 2009 Nov 13. PMID 19878981. TUT4 in concert with Lin28 suppresses microRNA biogenesis through pre-microRNA uridylation. Heo I, et al. Cell, 2009 Aug 21. PMID 19703396. A role for Lin28 in primordial germ-cell development and germ-cell malignancy. West JA, et al. Nature, 2009 Aug 13. PMID 19578360.

NCBI and Uniprot Product Information

• NCBI GI #: 13375938
• NCBI GeneID: 79727
• NCBI Accession #: NP_078950.1
• NCBI GenBank Nucleotide #: NM_024674.4
• UniProt Accession #: Q9H9Z2
• Molecular Weight: 22,743 Da
• NCBI Official Full Name: protein lin-28 homolog A
• NCBI Official Synonym Full Names: lin-28 homolog A (C. elegans)
• NCBI Official Symbol: LIN28A
• NCBI Official Synonym Symbols: CSDD1; LIN28; LIN-28; ZCCHC1; lin-28A
• NCBI Protein Information: protein lin-28 homolog A; RNA-binding protein LIN-28; zinc finger CCHC domain-containing protein 1; zinc finger, CCHC domain containing 1
• UniProt Protein Name: Protein lin-28 homolog A
• UniProt Gene Name: LIN28A
• UniProt Synonym Gene Names: CSDD1; LIN28; ZCCHC1; Lin-28A
• UniProt Entry Name: LN28A_HUMAN

Uniprot Description

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.

Protein type: Translation; RNA-binding; Nucleolus

Chromosomal Location of Human Ortholog: 1p36.11

Cellular Component: stress granule; cytoplasm; nucleolus; nucleus; cytosol

Molecular Function: mRNA binding; protein binding; miRNA binding; DNA binding; zinc ion binding; RNA binding; translation initiation factor binding

Biological Process: positive regulation of translation; regulation of transcription, DNA-dependent; pre-microRNA processing; somatic stem cell maintenance; stem cell maintenance; positive regulation of neuron differentiation; RNA 3'-end processing; germ cell development; negative regulation of glial cell differentiation