c-MYC Polyclonal antibody

Function

c-Myc (also known as Myc), together with l-Myc and n-Myc, belongs to the Myc family of transcription factors. c-Myc has a basic helix-loop-helix leucine zipper domain and through heterodimerization can bind and regulate the transcriptional activity of genes, either by repression or activation. It is a key player in the regulation of cell growth and cell cycle progression and acts as a proto-oncogene.

Tissue specificity

c-Myc is ubiquitously expressed in almost all cell types and its expression positively correlates with tissue proliferative capacity. c-Myc is also expressed during embryogenesis and is upregulated in many cancer types.

Involvement in disease

·         Upregulated in many cancer types, especially in aggressive, poorly differentiated tumors.

·         Mutations in the MYC gene and breakpoint translocations within the MYC gene cause Burkitt lymphoma.

Isoforms

There are 3 different isoforms of c-Myc: c-Myc1, c-Myc2, and c-MycS (PMID: 16260605). They differ in molecular size, can be preferentially expressed during cell growth, and are reported to be functionally distinct.

Post-translational modifications

c-Myc is subject to various post-translational modifications, including phosphorylation, acetylation, and ubiquitinylation (PMID: 16987807), which regulate its activity.

Cellular localization

c-Myc localizes to the nucleus but can also be present in the cytoplasm of certain cancer types.