This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3sek

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 21:12, 11 August 2016

Crystal Structure of the Myostatin:Follistatin-like 3 Complex

Structural highlights

3sek is a 2 chain structure with sequence from Human and Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	Gdf8, Mstn, myostatin (LK3 transgenic mice), FLRG, follistatin-like 3, FSTL3, UNQ674/PRO1308 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[FSTL3_HUMAN] Note=A chromosomal aberration involving FSTL3 is found in a case of B-cell chronic lymphocytic leukemia. Translocation t(11;19)(q13;p13) with CCDN1.

Function

[GDF8_MOUSE] Acts specifically as a negative regulator of skeletal muscle growth. [FSTL3_HUMAN] Isoform 1 or the secreted form is a binding and antagonizing protein for members of the TGF-beta family, such us activin, BMP2 and MSTN. Inhibits activin A-, activin B-, BMP2- and MSDT-induced cellular signaling; more effective on activin A than on activin B. Involved in bone formation; inhibits osteoclast differentiationc. Involved in hematopoiesis; involved in differentiation of hemopoietic progenitor cells, increases hematopoietic cell adhesion to fibronectin and seems to contribute to the adhesion of hematopoietic precursor cells to the bone marrow stroma. Isoform 2 or the nuclear form is probably involved in transcriptional regulation via interaction with MLLT10.^[1] ^[2] ^[3] ^[4] ^[5] ^[6]

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^[7]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Bartholin L, Maguer-Satta V, Hayette S, Martel S, Gadoux M, Corbo L, Magaud JP, Rimokh R. Transcription activation of FLRG and follistatin by activin A, through Smad proteins, participates in a negative feedback loop to modulate activin A function. Oncogene. 2002 Mar 28;21(14):2227-35. PMID:11948405 doi:10.1038/sj.onc.1205294
↑ Maguer-Satta V, Rimokh R. FLRG, member of the follistatin family, a new player in hematopoiesis. Mol Cell Endocrinol. 2004 Oct 15;225(1-2):109-18. PMID:15451575 doi:10.1016/j.mce.2004.07.009
↑ Bartholin L, Destaing O, Forissier S, Martel S, Maguer-Satta V, Jurdic P, Rimokh R. FLRG, a new ADAM12-associated protein, modulates osteoclast differentiation. Biol Cell. 2005 Jul;97(7):577-88. PMID:15574124 doi:10.1042/BC20040506
↑ Maguer-Satta V, Forissier S, Bartholin L, Martel S, Jeanpierre S, Bachelard E, Rimokh R. A novel role for fibronectin type I domain in the regulation of human hematopoietic cell adhesiveness through binding to follistatin domains of FLRG and follistatin. Exp Cell Res. 2006 Feb 15;312(4):434-42. Epub 2005 Dec 5. PMID:16336961 doi:10.1016/j.yexcr.2005.11.006
↑ Forissier S, Razanajaona D, Ay AS, Martel S, Bartholin L, Rimokh R. AF10-dependent transcription is enhanced by its interaction with FLRG. Biol Cell. 2007 Oct;99(10):563-71. PMID:17868029
↑ Takehara-Kasamatsu Y, Tsuchida K, Nakatani M, Murakami T, Kurisaki A, Hashimoto O, Ohuchi H, Kurose H, Mori K, Kagami S, Noji S, Sugino H. Characterization of follistatin-related gene as a negative regulatory factor for activin family members during mouse heart development. J Med Invest. 2007 Aug;54(3-4):276-88. PMID:17878677
↑ Cash JN, Angerman EB, Kattamuri C, Nolan K, Zhao H, Sidis Y, Keutmann HT, Thompson TB. Structure of myostatin.follistatin-like 3: N-terminal domains of follistatin-type molecules exhibit alternate modes of binding. J Biol Chem. 2012 Jan 6;287(2):1043-53. Epub 2011 Nov 3. PMID:22052913 doi:http://dx.doi.org/10.1074/jbc.M111.270801

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3sek"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the Myostatin:Follistatin-like 3 Complex==
 <StructureSection load='3sek' size='340' side='right' caption='[[3sek]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Gdf8, Mstn, myostatin ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), FLRG, follistatin-like 3, FSTL3, UNQ674/PRO1308 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3sek FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sek OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3sek RCSB], [http://www.ebi.ac.uk/pdbsum/3sek PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3sek FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3sek OCA], [http://pdbe.org/3sek PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3sek RCSB], [http://www.ebi.ac.uk/pdbsum/3sek PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3sek ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 19: / Line 20: @@
 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==

3sek

From Proteopedia

Revision as of 21:12, 11 August 2016

Crystal Structure of the Myostatin:Follistatin-like 3 Complex

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox