Anti-TRF4-2/PAPD5 Antibody, clone 3D8 ZooMAb^® Rabbit Monoclonal

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ZooMAb^® antibodies represent an entirely new generation of recombinant monoclonal antibodies. Each ZooMAb^® antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb^® antibodies are reliably available and ready to ship when you need them.

Clone 3D8 is a ZooMAb^® rabbit recombinant monoclonal antibody that specifically detects Terminal nucleotidyltransferase 4B (TRF4-2). It targets an epitope within 18 amino acids from the C-terminal region.

KLH-conjugated linear peptide corresponding to 18 amino acids from the C-terminal region of human Terminal nucleotidyltransferase 4B (TRF4-2).

Quality Control Testing

Evaluated by Western Blotting in HepG2 cell lysate.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected TRF4-2/PAPD5 in HepG2 cell lysate.

Tested Applications

Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected TRF4-2/PAPD5 in U2OS, NIH3T3, and L6 cell lysates.

Affinity Binding Assay: A representative lot of this antibody bound TRF4-2/PAPD5 peptide with a KD of 4.4 x 10-8 in an affinity binding assay.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected TRF4-2/PAPD5 in HepG2 cells.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user.

Terminal nucleotidyltransferase 4B (UniProt: Q8NDF8; also known as Non-canonical poly(A) RNA polymerase PAPD5, EC:2.7.7.19 PAP-associated domain-containing protein 5, Terminal guanylyltransferase, Terminal uridylyltransferase 3, TUTase 3, Topoisomerase-related function protein 4-2, TRF4-2) is encoded by the TENT4B (also known as GLD4, PAPD5, TRF4-2, TUT3) gene (Gene ID: 64282) in human. TRF4-2/PAPD5 is a component of a nucleolar TRAMP-like complex, an ATP-dependent exosome regulatory complex that consists of a helicase (MTREX), an oligadenylate polymerase (TENT4B or TENT4A), and a substrate specific RNA-binding factor (ZCCHC7 or ZCCHC8). It catalyzes preferentially the transfer of ATP and GTP on RNA 3′ poly(A) tail creating a heterogeneous 3′ poly(A) tail leading to mRNAs stabilization by protecting mRNAs from active deadenylation. It also functions as a catalytic subunit of a TRAMP-like complex that has a poly(A) RNA polymerase activity and is involved in a post-transcriptional quality control mechanism. It is shown to be essential for cytoplasmic polyadenylation of mRNAs involved in carbohydrate metabolism, including the glucose transporter SLC2A1/GLUT1. It is reported to play a role in replication-dependent histone mRNA degradation, probably through terminal uridylation of mature histone mRNAs. Five isoforms of TRF4-2/PSPD5 have been reported that are produced by alternative splicing. This ZooMAb^® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Lim, J., et al. (2018). Science. 361(6403). 701-704; Remmelt, C., et al. (2011). RNA. 17(9); 1737-1746; Mullen, TE., and Mazzluff, WF. (2008). Genes Dev. 22(1); 50-65).

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. The PBS/trehalose components in the ZooMAb formulation can have the appearance of a semi-solid (bead like gel) after lyophilization. This is a normal phenomenon. Please follow the recommended reconstitution procedure in the data sheet to dissolve the semi-solid, bead-like, gel-appearing material. The resulting antibody solution is completely stable and functional as proven by full functional testing. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 µL.

300 µg/mL after reconstitution at 25 µL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 µL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.