View source for 3sek


==Crystal Structure of the Myostatin:Follistatin-like 3 Complex==
<StructureSection load='3sek' size='340' side='right'caption='[[3sek]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3sek]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3SEK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3SEK FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.401&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3sek FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sek OCA], [https://pdbe.org/3sek PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3sek RCSB], [https://www.ebi.ac.uk/pdbsum/3sek PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3sek ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GDF8_MOUSE GDF8_MOUSE] Acts specifically as a negative regulator of skeletal muscle growth.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
TGF-beta family ligands are involved in a variety of critical physiological processes. For instance, the TGF-beta ligand myostatin is a staunch negative regulator of muscle growth and a therapeutic target for muscle-wasting disorders. Therefore, it is important to understand the molecular mechanisms of TGF-beta family regulation. One form of regulation is through inhibition by extracellular antagonists such as the follistatin (Fst)-type proteins. Myostatin is tightly controlled by Fst-like 3 (Fstl3), which is the only Fst-type molecule that has been identified in the serum bound to myostatin. Here, we present the crystal structure of myostatin in complex with Fstl3. The structure reveals that the N-terminal domain (ND) of Fstl3 interacts uniquely with myostatin as compared with activin A, because it utilizes different surfaces on the ligand. This results in conformational differences in the ND of Fstl3 that alter its position in the type I receptor-binding site of the ligand. We also show that single point mutations in the ND of Fstl3 are detrimental to ligand binding, whereas corresponding mutations in Fst have little effect. Overall, we have shown that the NDs of Fst-type molecules exhibit distinctive modes of ligand binding, which may affect overall affinity of ligand.Fst-type protein complexes.

Structure of myostatin.follistatin-like 3: N-terminal domains of follistatin-type molecules exhibit alternate modes of binding.,Cash JN, Angerman EB, Kattamuri C, Nolan K, Zhao H, Sidis Y, Keutmann HT, Thompson TB J Biol Chem. 2012 Jan 6;287(2):1043-53. Epub 2011 Nov 3. PMID:22052913<ref>PMID:22052913</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3sek" style="background-color:#fffaf0;"></div>

==See Also==
*[[Follistatin|Follistatin]]
*[[Growth differentiation factor 3D STRUCTURES|Growth differentiation factor 3D STRUCTURES]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Cash JN]]
[[Category: Thompson TB]]