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[[Image:1pz8.png|left|200px]]


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==Modulation of agrin function by alternative splicing and Ca2+ binding==
The line below this paragraph, containing "STRUCTURE_1pz8", creates the "Structure Box" on the page.
<StructureSection load='1pz8' size='340' side='right'caption='[[1pz8]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1pz8]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PZ8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PZ8 FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.35&#8491;</td></tr>
-->
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
{{STRUCTURE_1pz8| PDB=1pz8 |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1pz8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pz8 OCA], [https://pdbe.org/1pz8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pz8 RCSB], [https://www.ebi.ac.uk/pdbsum/1pz8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pz8 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/AGRIN_CHICK AGRIN_CHICK] Isoform 1: heparan sulfate basal lamina glycoprotein that plays a central role in the formation and the maintenance of the neuromuscular junction (NMJ) and directs key events in postsynaptic differentiation. Component of the AGRN-LRP4 receptor complex that induces the phosphorylation and activation of MUSK. The activation of MUSK in myotubes induces the formation of NMJ by regulating different processes including the transcription of specific genes and the clustering of AChR in the postsynaptic membrane. Calcium ions are required for maximal AChR clustering. AGRN funtion in neurons is highly regulated by alternative splicing, glycan binding and proteolytic processing. Modulates calcium ion homestasis in neurons, specifically by inducing an increase in cytoplasmic calcium ions. Functions differentially in the central nervous system (CNS) by inhibiting the alpha(3)-subtype of Na+/K+-ATPase and evoking depolarization at CNS synapses.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>  Isoform 9: transmembrane agrin (TM-agrin), the predominant form in neurons of the brain, induces dendritic filopodia and synapse formation in mature hippocampal neurons in large part due to the attached glycosaminoglycan chains and the action of Rho-family GTPases.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>  Isoform 2, isoform 4 and isoform 7: muscle agrin isoforms, which lack the 8-amino acid insert at the 'B' site, but with the insert at the'A' site have no AChr clustering activity nor MUSK activation but bind heparin. Bind alpha-dystroglycan with lower affinity.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>  Isoform 5: muscle agrin A0B0 lacking inserts at both 'A' and 'B' sites has no heparin-binding nor AChR clustering activity but binds strongly alpha-dystroglycan.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>  Agrin N-terminal 110 kDa subunit: is involved in modulation of growth factor signaling (By similarity). Involved also in the regulation of neurite outgrowth probably due to the presence of the glycosaminoglcan (GAG) side chains of heparan and chondroitin sulfate attached to the Ser/Thr- and Gly/Ser-rich regions. Also involved in modulation of growth factor signaling.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>  Agrin C-terminal 22 kDa fragment: this released fragment is important for agrin signaling and to exert a maximal dendritic filopodia-inducing effect. All 'B' splice variants of this fragment also show an increase in the number of filopodia.<ref>PMID:7860635</ref> <ref>PMID:11425874</ref> <ref>PMID:15198666</ref> <ref>PMID:17012237</ref> <ref>PMID:17649979</ref> <ref>PMID:19940118</ref> <ref>PMID:22984437</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pz/1pz8_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1pz8 ConSurf].
<div style="clear:both"></div>


===Modulation of agrin function by alternative splicing and Ca2+ binding===
==See Also==
 
*[[Agrin 3D structures|Agrin 3D structures]]
 
== References ==
<!--
<references/>
The line below this paragraph, {{ABSTRACT_PUBMED_15016366}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15016366 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15016366}}
 
==About this Structure==
1PZ8 is a 4 chains structure of sequences from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PZ8 OCA].
 
==Reference==
<ref group="xtra">PMID:15016366</ref><references group="xtra"/>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
[[Category: Alexandrescu, A T.]]
[[Category: Large Structures]]
[[Category: Frank, S.]]
[[Category: Alexandrescu AT]]
[[Category: Jenny, M.]]
[[Category: Frank S]]
[[Category: Kammerer, R A.]]
[[Category: Jenny M]]
[[Category: Landwehr, R.]]
[[Category: Kammerer RA]]
[[Category: Maciejewski, M W.]]
[[Category: Landwehr R]]
[[Category: Rathgeb-Szabo, K.]]
[[Category: Maciejewski MW]]
[[Category: Ruegg, M A.]]
[[Category: Rathgeb-Szabo K]]
[[Category: Schulthess, T.]]
[[Category: Ruegg MA]]
[[Category: Stetefeld, J.]]
[[Category: Schulthess T]]
[[Category: Agrin]]
[[Category: Stetefeld J]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 01:50:13 2009''

Latest revision as of 09:00, 17 April 2024

Modulation of agrin function by alternative splicing and Ca2+ bindingModulation of agrin function by alternative splicing and Ca2+ binding

Structural highlights

1pz8 is a 4 chain structure with sequence from Gallus gallus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.35Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

AGRIN_CHICK Isoform 1: heparan sulfate basal lamina glycoprotein that plays a central role in the formation and the maintenance of the neuromuscular junction (NMJ) and directs key events in postsynaptic differentiation. Component of the AGRN-LRP4 receptor complex that induces the phosphorylation and activation of MUSK. The activation of MUSK in myotubes induces the formation of NMJ by regulating different processes including the transcription of specific genes and the clustering of AChR in the postsynaptic membrane. Calcium ions are required for maximal AChR clustering. AGRN funtion in neurons is highly regulated by alternative splicing, glycan binding and proteolytic processing. Modulates calcium ion homestasis in neurons, specifically by inducing an increase in cytoplasmic calcium ions. Functions differentially in the central nervous system (CNS) by inhibiting the alpha(3)-subtype of Na+/K+-ATPase and evoking depolarization at CNS synapses.[1] [2] [3] [4] [5] [6] [7] Isoform 9: transmembrane agrin (TM-agrin), the predominant form in neurons of the brain, induces dendritic filopodia and synapse formation in mature hippocampal neurons in large part due to the attached glycosaminoglycan chains and the action of Rho-family GTPases.[8] [9] [10] [11] [12] [13] [14] Isoform 2, isoform 4 and isoform 7: muscle agrin isoforms, which lack the 8-amino acid insert at the 'B' site, but with the insert at the'A' site have no AChr clustering activity nor MUSK activation but bind heparin. Bind alpha-dystroglycan with lower affinity.[15] [16] [17] [18] [19] [20] [21] Isoform 5: muscle agrin A0B0 lacking inserts at both 'A' and 'B' sites has no heparin-binding nor AChR clustering activity but binds strongly alpha-dystroglycan.[22] [23] [24] [25] [26] [27] [28] Agrin N-terminal 110 kDa subunit: is involved in modulation of growth factor signaling (By similarity). Involved also in the regulation of neurite outgrowth probably due to the presence of the glycosaminoglcan (GAG) side chains of heparan and chondroitin sulfate attached to the Ser/Thr- and Gly/Ser-rich regions. Also involved in modulation of growth factor signaling.[29] [30] [31] [32] [33] [34] [35] Agrin C-terminal 22 kDa fragment: this released fragment is important for agrin signaling and to exert a maximal dendritic filopodia-inducing effect. All 'B' splice variants of this fragment also show an increase in the number of filopodia.[36] [37] [38] [39] [40] [41] [42]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

References

  1. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  2. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  3. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  4. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  5. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  6. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  7. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669
  8. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  9. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  10. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  11. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  12. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  13. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  14. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669
  15. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  16. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  17. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  18. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  19. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  20. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  21. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669
  22. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  23. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  24. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  25. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  26. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  27. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  28. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669
  29. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  30. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  31. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  32. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  33. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  34. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  35. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669
  36. ↑ Gesemann M, Denzer AJ, Ruegg MA. Acetylcholine receptor-aggregating activity of agrin isoforms and mapping of the active site. J Cell Biol. 1995 Feb;128(4):625-36. PMID:7860635
  37. ↑ Bezakova G, Helm JP, Francolini M, Lomo T. Effects of purified recombinant neural and muscle agrin on skeletal muscle fibers in vivo. J Cell Biol. 2001 Jun 25;153(7):1441-52. PMID:11425874
  38. ↑ Baerwald-de la Torre K, Winzen U, Halfter W, Bixby JL. Glycosaminoglycan-dependent and -independent inhibition of neurite outgrowth by agrin. J Neurochem. 2004 Jul;90(1):50-61. PMID:15198666 doi:http://dx.doi.org/10.1111/j.1471-4159.2004.02454.x
  39. ↑ Scotton P, Bleckmann D, Stebler M, Sciandra F, Brancaccio A, Meier T, Stetefeld J, Ruegg MA. Activation of muscle-specific receptor tyrosine kinase and binding to dystroglycan are regulated by alternative mRNA splicing of agrin. J Biol Chem. 2006 Dec 1;281(48):36835-45. Epub 2006 Sep 29. PMID:17012237 doi:http://dx.doi.org/10.1074/jbc.M607887200
  40. ↑ Sallum CO, Kammerer RA, Alexandrescu AT. Thermodynamic and structural studies of carbohydrate binding by the agrin-G3 domain. Biochemistry. 2007 Aug 21;46(33):9541-50. Epub 2007 Jul 25. PMID:17649979 doi:http://dx.doi.org/10.1021/bi7006383
  41. ↑ Porten E, Seliger B, Schneider VA, Woll S, Stangel D, Ramseger R, Kroger S. The process-inducing activity of transmembrane agrin requires follistatin-like domains. J Biol Chem. 2010 Jan 29;285(5):3114-25. doi: 10.1074/jbc.M109.039420. Epub 2009 , Nov 25. PMID:19940118 doi:http://dx.doi.org/10.1074/jbc.M109.039420
  42. ↑ Patel TR, Butler G, McFarlane A, Xie I, Overall CM, Stetefeld J. Site specific cleavage mediated by MMPs regulates function of agrin. PLoS One. 2012;7(9):e43669. doi: 10.1371/journal.pone.0043669. Epub 2012 Sep 11. PMID:22984437 doi:http://dx.doi.org/10.1371/journal.pone.0043669

1pz8, resolution 2.35Å

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