Anti-Wilms' Tumor Antibody, NT clone 6F-H2, Ascites Free clone 6F-H2, from mouse

Wilms tumor protein (UniProt P19544; also known as WT33) is encoded by the WT1 (also known as DDS, FS, MEACHS, MESOM, NPHS4, WAGR) gene (Gene ID 7490) in human. The Wilms' tumor gene WT1 was originally identified in the childhood kidney cancer Wilms' tumor. The N-terminal region of WT1 protein contains a proline-rich region (a.a. 27-83) involved in transcriptional regulation, self-association, and RNA recognition, while its C-terminal region contains four zinc fingers (a.a 323-347, 353-377, 383-405, 414-438) that mediate DNA and RNA binding. The zinc finger domain of WT1 can bind to GC-rich sequences, such as the EGR-1 consensus sequence (5'-GCG(T/G)GGGCG-3'), the WTE motif (5'-GCGTGGGAGT-3'), or (TCC)n motif. Many genes responsible for cell growth and apoptosis, such as Bcl-2, Bcl-xL, BFL1, and c-myc, have been identified as downstream targets of WT1. There are four major alternatively spliced WT1 isoforms resulting from splicing at either or both of exon 5 (17AA) and exon 9 (KTS). All four major WT1 isoforms are overexpressed in leukemia and solid tumors and play oncogenic roles such as inhibition of apoptosis, and promotion of cell proliferation, migration and invasion.