5mu8
HUMAN TNF-ALPHA IN COMPLEX WITH JNJ525
Structural highlights
DiseaseTNFA_HUMAN Genetic variations in TNF are a cause of susceptibility psoriatic arthritis (PSORAS) [MIM:607507. PSORAS is an inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy. Five types of psoriatic arthritis have been defined: asymmetrical oligoarthritis characterized by primary involvement of the small joints of the fingers or toes; asymmetrical arthritis which involves the joints of the extremities; symmetrical polyarthritis characterized by a rheumatoidlike pattern that can involve hands, wrists, ankles, and feet; arthritis mutilans, which is a rare but deforming and destructive condition; arthritis of the sacroiliac joints and spine (psoriatic spondylitis). FunctionTNFA_HUMAN Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation.[1] The TNF intracellular domain (ICD) form induces IL12 production in dendritic cells.[2] Publication Abstract from PubMedA prevalent observation in high-throughput screening and drug discovery programs is the inhibition of protein function by small-molecule compound aggregation. Here, we present the X-ray structural description of aggregation-based inhibition of a protein-protein interaction involving tumor necrosis factor alpha (TNFalpha). An ordered conglomerate of an aggregating small-molecule inhibitor (JNJ525) induces a quaternary structure switch of TNFalpha that inhibits the protein-protein interaction between TNFalpha and TNFalpha receptors. SPD-304 may employ a similar mechanism of inhibition. Structural Basis of Small-Molecule Aggregate Induced Inhibition of a Protein-Protein Interaction.,Blevitt JM, Hack MD, Herman KL, Jackson PF, Krawczuk PJ, Lebsack AD, Liu AX, Mirzadegan T, Nelen MI, Patrick AN, Steinbacher S, Milla ME, Lumb KJ J Med Chem. 2017 Mar 16. PMID:28300404[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
| ||||||||||||||||||||
