View source for 2az5

{{STRUCTURE_2az5|  PDB=2az5  |  SCENE=  }} 
===Crystal Structure of TNF-alpha with a small molecule inhibitor===
{{ABSTRACT_PUBMED_16284179}}

==Disease==
[[http://www.uniprot.org/uniprot/TNFA_HUMAN TNFA_HUMAN]] Genetic variations in TNF are a cause of susceptibility psoriatic arthritis (PSORAS) [MIM:[http://omim.org/entry/607507 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). 

==Function==
[[http://www.uniprot.org/uniprot/TNFA_HUMAN TNFA_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.<ref>PMID:16829952</ref>  The TNF intracellular domain (ICD) form induces IL12 production in dendritic cells.<ref>PMID:16829952</ref> 

==About this Structure==
[[2az5]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZ5 OCA]. 

==Reference==
<ref group="xtra">PMID:016284179</ref><references group="xtra"/><references/>
[[Category: Homo sapiens]]
[[Category: He, M M.]]
[[Category: Cytokine]]
[[Category: Tnf-alpha trimer disruption by binding of a small molecule inhibitor]]