2mhs | pdb_00002mhs
NMR Structure of human Mcl-1
Structural highlights
Function[MCL1_HUMAN] Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. Isoform 1 inhibits apoptosis. Isoform 2 promotes apoptosis.[1] Publication Abstract from PubMedA high-quality NMR solution structure is presented for protein hMcl-1(171-327) which comprises residues 171-327 of the human anti-apoptotic protein Mcl-1 (hMcl-1). Since this construct contains the three Bcl-2 homology (BH) sequence motifs which participate in forming a binding site for inhibitors of hMcl-1, it is deemed to be crucial for structure-based design of novel anti-cancer drugs blocking the Mcl1 related anti-apoptotic pathway. While the coordinates of an NMR solution structure for a corresponding construct of the mouse homologue (mMcl-1) are publicly available, our structure is the first atomic resolution structure reported for the 'apo form' of the human protein. Comparison of the two structures reveals that hMcl-1(171-327) exhibits a somewhat wider ligand/inhibitor binding groove as well as a different charge distribution within the BH3 binding groove. These findings strongly suggest that the availability of the human structure is of critical importance to support future design of cancer drugs. High-quality NMR structure of human anti-apoptotic protein domain mcl-1(171-327) for cancer drug design.,Liu G, Poppe L, Aoki K, Yamane H, Lewis J, Szyperski T PLoS One. 2014 May 2;9(5):e96521. doi: 10.1371/journal.pone.0096521. eCollection , 2014. PMID:24789074[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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