Anti-RUNX1/AML1 Antibody Picoband®

Runt-related transcription factor 1 (RUNX1), also known as AML1 or CBFA2, is a protein that in humans is encoded by the RUNX1 gene. It belongs to the Runt-related transcription factor (RUNX) family of genes which are also called core binding factor-α (CBFα) . RUNX1 is mapped to 21q22.12. RUNX1 is a transcription factor that regulates the differentiation of hematopoietic stem cells into mature blood cells. RUNX proteins form a heterodimeric complex with CBFβ which confers increased DNA binding and stability to the complex. Chromosomal translocations involving the RUNX1 gene are associated with several types of leukemia including M2 AML. Mutations in RUNX1 are implicated in cases of breast cancer.

Runt-related transcription factor 1; Acute myeloid leukemia 1 protein; Core-binding factor subunit alpha-2; CBF-alpha-2; Oncogene AML-1; Polyomavirus enhancer-binding protein 2 alpha B subunit; PEA2-alpha B; PEBP2-alpha B; SL3-3 enhancer factor 1 alpha B subunit; SL3/AKV core-binding factor alpha B subunit; RUNX1; AML1, CBFA2

Cancer, Chromatin Binding Proteins, Developmental Biology, DNA/RNA Binding, Epigenetics and Nuclear Signaling, Hematopoietic Progenitors, Mesenchymal Stem Cells, Neurogenesis, Neurology Process, Neuroscience, Oncoproteins, Oncoproteins/Suppressors, Organogenesis, Skeletal Development, Stem Cells, Transcription, Transcription Factors

CBF binds to the core site, 5'-PYGPYGGT-3', of a number of enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers, LCK, IL-3 and GM-CSF promoters. The alpha subunit binds DNA and appears to have a role in the development of normal hematopoiesis. Isoform AML-1L interferes with the transactivation activity of RUNX1. Acts synergistically with ELF4 to transactivate the IL-3 promoter and with ELF2 to transactivate the mouse BLK promoter. Inhibits KAT6B- dependent transcriptional activation. Controls the anergy and suppressive function of regulatory T-cells (Treg) by associating with FOXP3. Activates the expression of IL2 and IFNG and down- regulates the expression of TNFRSF18, IL2RA and CTLA4, in conventional T-cells (PubMed:17377532) . .

1. Avramopoulos D, Cox T, Blaschak JE, Chakravarti A, Antonarakis SE (October 1992) . Linkage mapping of the AML1 gene on human chromosome 21 using a DNA polymorphism in the 3' untranslated region. Genomics 14 (2) : 506–7. 2. Okuda T, Nishimura M, Nakao M, Fujita Y (October 2001) . RUNX1/AML1: a central player in hematopoiesis. Int. J. Hematol. 74 (3) : 252–7. 3. The Cancer Genome Atlas Network (2012) . Comprehensive molecular portraits of human breast tumours. Nature (Nature Publishing Group) 490 (7418) : 61–70.

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.