Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

tiomolibdate choline

An orally active second generation tetrathiomolybdate analog with anti-angiogenic and antineoplastic activities. Tiomolibdate choline selectively chelates the copper ion in superoxide dismutase 1 (SOD1) in endothelial cells, thereby depleting SOD1 of copper and inhibiting its activity. Inhibition of SOD1 interferes with the activation of several signal transduction pathways required for cellular proliferation and angiogenesis, including those mediated by ERK1/2 and FAK and Src kinases. This results in an inhibition of cell proliferation and angiogenesis as well as induction of apoptosis.
Synonym:bis(choline)tetrathiomolybdate
SOD1 inhibitor ATN-224
Code name:ALXN-1840
ATN 224
ATN-224
WTX-101
Chemical structure:ethanaminium, 2-hydroxy-N,N,N-trimethyl-, (T-4)-tetrathioxomolybdate(2-) (2:1)
Search NCI's Drug Dictionary