Anti-DBF4 Antibody Picoband®

Using both gain- and loss-of-function experiments, it was found that Xenopus Dbf4 inhibited canonical Wnt signaling. Depletion of endogenous Dbf4 did not disturb gastrulation movements or early organizer genes, but resulted in embryos with morphologically defective heart and eyes and suppressed cardiac markers. The function of Dbf4 in heart development appeared to be independent of its role in the cell cycle. Dbf4 interacted physically and functionally with Frodo, a context-dependent regulator of Wnt signaling.

Isoform 1 and isoform 2 are detected in bone marrow cells, spermatogonia and spermatocytes, but not in round spermatids, elongating spermatids and spermatozoa. Isoform 3 is detected in round spermatids, elongating spermatids and spermatozoa, but not in spermatogonia and spermatocytes (at protein level) . Isoform 1 is widely expressed and detected in fetal liver and bone marrow. Isoform 3 is detected in bone marrow cells enriched in hematopoietic stem cells.

G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Signaling activates a phosphatidylinositol-calcium second messenger system and generates a calcium-activated chloride current. Plays an important role in the regulation of synaptic plasticity and the modulation of the neural network activity.

1. Brott, B. K., Sokol, S. Y. A vertebrate homolog of the cell cycle regulator Dbf4 is an inhibitor of Wnt signaling required for heart development. Dev. Cell 8: 703-715, 2005. Brott, B. K., Sokol, S. Y. A vertebrate homolog of the cell cycle regulator Dbf4 is an inhibitor of Wnt signaling required for heart development. Dev. Cell 8: 703-715, 2005. 2. Lepke, M., Putter, V., Staib, C., Kneissl, M., Berger, C., Hoehn, K., Nanda, I., Schmid, M., Grummt, F. Identification, characterization and chromosomal localization of the cognate human and murine DBF4 genes. Molec. Gen. Genet. 262: 220-229, 1999. Lepke, M., Putter, V., Staib, C., Kneissl, M., Berger, C., Hoehn, K., Nanda, I., Schmid, M., Grummt, F. Identification, characterization and chromosomal localization of the cognate human and murine DBF4 genes. Molec. Gen. Genet. 262: 220-229, 1999. 3. Zegerman, P., Diffley, J. F. X. Checkpoint-dependent inhibition of DNA replication initiation by Sld3 and Dbf4 phosphorylation. Nature 467: 474-478, 2010.

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.