Anti-UPF3A Antibody Picoband®

Regulator of nonsense transcripts 3A is a protein that in humans is encoded by the UPF3A gene. This gene encodes a protein that is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. The encoded protein is one of two functional homologs to yeast Upf3p. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD) . When translation ends upstream from the last exon-exon junction, this triggers NMD to degrade mRNAs containing premature stop codons. This protein binds to the mRNA and remains bound after nuclear export, acting as a nucleocytoplasmic shuttling protein. It forms with Y14 a complex that binds specifically 20 nt upstream of exon-exon junctions. This gene is located on the long arm of chromosome 13. Several splice variants encoding different isoforms have been found for this gene.

Disintegrin and metalloproteinase domain-containing protein 2; ADAM 2; Cancer/testis antigen 15; CT15; Fertilin subunit beta; PH-30; PH30; PH30-beta; ADAM2; FTNB

Cancer, Cell Biology, Cytoskeleton/ECM, ECM Enzymes, Extracellular Matrix, Invasion/Microenvironment, Metalloprotease, Proteolysis/Ubiquitin, Proteolytic Enzymes, Signal Transduction

Sperm surface membrane protein that may be involved in sperm-egg plasma membrane adhesion and fusion during fertilization. Could have a role in sperm-zona binding or migration of sperm from the uterus into the oviduct. Interactions with egg membrane could be mediated via binding between its disintegrin-like domain to one or more integrins receptors on the egg. This is a non catalytic metalloprotease-like protein.

1. Chan, W.-K., Bhalla, A. D., Le Hir, H., Nguyen, L. S., Huang, L., Gecz, J., Wilkinson, M. F. A UPF3-mediated regulatory switch that maintains RNA surveillance. Nature Struct. Molec. Biol. 16: 747-753, 2009. 2. Gross, M. B. Personal Communication. Baltimore, Md. 2/28/2011. 3. Kim, V. N., Kataoka, N., Dreyfuss, G. Role of the nonsense-mediated decay factor hUpf3 in the splicing-dependent exon-exon junction complex. Science 293: 1832-1836, 2001.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.