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LIN28B Antibody (N-term)

APR04030G Product Datasheet Protocol

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APR04030G		100 μl / $495

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Leading Biology Inc.

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LIN28B Antibody (N-term)

Brand	Leading Biology	Catalog Number	APR04030G
Product Type	Polyclonal Antibodies	Field of Research
Product Overview	We constantly strive to ensure we provide our customers with the best antibodies. As a result of this work we offer this antibody in purified format. We are in the process of updating our datasheets. If you have any questions regarding this update, please feel free to contact our technical support team. This product is a high quality LIN28B Antibody (N-term).
Molecular Weight	27084 Da
Cellular Localization	Antigen Cellular Localization: Cytoplasm. Nucleus. Note=Predominantly cytoplasmic at G1 phase, accumulates in the nucleus in S and G2 phases. The frequency of nuclear localization in S and in G2 phases is 60% and 30%, respectively
Host	Rabbit
Species Reactivity	Human
Immunogen	1-30 aa
Target	This LIN28B antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 1-30 amino acids from the N-terminal region of human LIN28B.
Isotype	Rabbit Ig
Symbol	CSDD2
GeneID	389421
UniProt ID	Q6ZN17
Function	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. 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. Mediates MYC-mediated let-7 repression. Isoform 1, when overexpressed, stimulates growth of the breast adenocarcinoma cell line MCF-7. Isoform 2 has no effect on cell growth.
Summary	Lin-28 homolog B (LIN28B) is overexpressed in hepatocellular carcinoma. The heterochronic gene lin-28 is a key regulator of developmental timing in the nematode Caenorhabditis elegans. Similar with lin-28 proteins, LIN28B conserves a cold shock domain and a pair of CCHC zinc finger domains. Phylogenetic analysis suggests that they might arise as a result of duplication from an ancestral gene. Overexpression of LIN28B was noted in most HCC cell lines and clinical samples. A short LIN28B isoform was also identified in non-tumor liver tissue and fetal liver. Although predominantly localized in the cytoplasm, LIN28B protein shows cell cycle-dependent nuclear translocation in Huh7 cells. Induced expression of exogenous LIN28B in a tet-off cell line promoted cancer cell proliferation.
Storage & Stability	Store at +4°C short term. For long-term storage, aliquot and store at -20°C or below. Stable for 12 months at -20°C. Avoid repeated freeze-thaw cycles.
Applications	WB, FC, IHC-P, IF, E
Dilution	WB~~1:1000 FC~~1:25 IF~~1:100 IHC-P~~1:10~50
Images	All lanes : Anti-LIN28B Antibody (N-term) at 1:2000 dilution Lane 1: human liver lysate Lane 2: human testis lysate Lysates/proteins at 20 μg per lane. Secondary Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 27 kDa Blocking/Dilution buffer: 5% NFDM/TBST. Overlay histogram showing HepG2 cells stained with APR04030G (green line). The cells were fixed with 2% paraformaldehyde (10 min) and then permeabilized with 90% methanol for 10 min. The cells were then icubated in 2% bovine serum albumin to block non-specific protein-protein interactions followed by the antibody (APR04030G, 1:25 dilution) for 60 min at 37?C. The secondary antibody used was Goat-Anti-Rabbit IgG, DyLight? 488 Conjugated Highly Cross-Adsorbed(OH191631) at 1/200 dilution for 40 min at 37?C. Isotype control antibody (blue line) was rabbit IgG (1μg/1x10^6 cells) used under the same conditions. Acquisition of >10, 000 events was performed. All lanes : Anti-LIN28B Antibody (N-term) at 1:2000 dilution Lane 1: human testis lysate Lane 2: HepG2 whole cell lysate Lysates/proteins at 20 μg per lane. Secondary Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 27 kDa Blocking/Dilution buffer: 5% NFDM/TBST.
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