Ewing Sarcoma Breakpoint Region 1 (EWSR1) Antibody – Rabbit Polyclonal

This gene encodes a multifunctional protein that is involved in various cellular processes, including gene expression, cell signaling, and RNA processing and transport. The protein includes an N-terminal transcriptional activation domain and a C-terminal RNA-binding domain. Chromosomal translocations between this gene and various genes encoding transcription factors result in the production of chimeric proteins that are involved in tumorigenesis. These chimeric proteins usually consist of the N-terminal transcriptional activation domain of this protein fused to the C-terminal DNA-binding domain of the transcription factor protein. Mutations in this gene, specifically a t(11;22)(q24;q12) translocation, are known to cause Ewing sarcoma as well as neuroectodermal and various other tumors. Alternative splicing of this gene results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 1 and 14. [provided by RefSeq, Jul 2009]

EWS: an oncogenic RNA-binding protein. Might normally function as a repressor. Binds RPB3, SF1, calmodulin and RNA. Interacts with and regulated by Pyk2. Relocates from cytoplasm to ribosomes upon Pyk2 activation. EWS-fusion-proteins (EFPS) may play a role in the tumorigenic process. They may disturb gene expression by mimicking, or interfering with the normal function of CTD-POLII within the transcription initiation complex. 5 alternatively-spliced isoforms have been described.

Protein type: Oncoprotein; RNA-binding; Transcription, coactivator/corepressor

Chromosomal Location of Human Ortholog: 22q12.2

Cellular Component: nucleoplasm; cytoplasm; plasma membrane; nucleolus; nucleus

Molecular Function: calmodulin binding; identical protein binding; protein binding; zinc ion binding; RNA binding; nucleotide binding

Biological Process: transcription, DNA-dependent; regulation of transcription, DNA-dependent

Disease: Ewing Sarcoma