Mucosa associated lymphoid tissue lymphoma translocation gene 1 (MALT-1) is found in extranodal low-grade B cell lymphomas. The gene encodes two Ig-like C2-type domains and fuses with an API2 gene, which is highly expressed in adult lymphoid tissue. The translocation of this MALT-1 gene and the apoptosis-inhibiting API2 gene results in an increased development of MALT lymphomas and apoptosis inhibition. Sites at which this API2-MALT1 (11;18)(q21;q21) translocation commonly occurs are within human lung and kidney tissue. MALT lymphoma expresses nuclear Bcl10, which mediates the oligomerization and activation of a MALT-1 caspase-like domain. MALT-1 mRNA is found in pre-B cells, mature B cells and plasma cells.

Store the MALT1 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide).