2bra: Difference between revisions
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< | ==Structure of N-Terminal FAD Binding motif of mouse MICAL== | ||
<StructureSection load='2bra' size='340' side='right'caption='[[2bra]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2bra]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BRA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BRA 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]] 2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</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=2bra FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bra OCA], [https://pdbe.org/2bra PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bra RCSB], [https://www.ebi.ac.uk/pdbsum/2bra PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bra ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/MICA1_MOUSE MICA1_MOUSE] Monooxygenase that promotes depolymerization of F-actin by mediating oxidation of specific methionine residues on actin. Acts by modifying actin subunits through the addition of oxygen to form methionine-sulfoxide, leading to promote actin filament severing and prevent repolymerization. Acts as a cytoskeletal regulator that connects NEDD9 to intermediate filaments (By similarity). Also acts as a negative regulator of apoptosis via its interaction with STK38 and STK38L; acts by antagonizing STK38 and STK38L activation by MST1/STK4. | |||
== 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/br/2bra_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=2bra ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
During development, neurons are guided to their targets by short- and long-range attractive and repulsive cues. MICAL, a large multidomain protein, is required for the combined action of semaphorins and plexins in axon guidance. Here, we present the structure of the N-terminal region of MICAL (MICAL(fd)) determined by x-ray diffraction to 2.0 A resolution. The structure shows that MICAL(fd) is an FAD-containing module structurally similar to aromatic hydroxylases and amine oxidases. In addition, we present biochemical data that show that MICAL(fd) is a flavoenzyme that in the presence of NADPH reduces molecular oxygen to H(2)O(2) (K(m,NAPDH) = 222 microM; k(cat) = 77 sec(-1)), a molecule with known signaling properties. We propose that the H(2)O(2) produced by this reaction may be one of the signaling molecules involved in axon guidance by MICAL. | |||
Structure and activity of the axon guidance protein MICAL.,Nadella M, Bianchet MA, Gabelli SB, Barrila J, Amzel LM Proc Natl Acad Sci U S A. 2005 Nov 15;102(46):16830-5. Epub 2005 Nov 7. PMID:16275926<ref>PMID:16275926</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2bra" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
== | |||
< | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Amzel | [[Category: Amzel LM]] | ||
[[Category: Bianchet | [[Category: Bianchet MA]] | ||
[[Category: Gabelli | [[Category: Gabelli SB]] | ||
[[Category: Nadella | [[Category: Nadella M]] | ||
Latest revision as of 12:18, 9 May 2024
Structure of N-Terminal FAD Binding motif of mouse MICALStructure of N-Terminal FAD Binding motif of mouse MICAL
Structural highlights
FunctionMICA1_MOUSE Monooxygenase that promotes depolymerization of F-actin by mediating oxidation of specific methionine residues on actin. Acts by modifying actin subunits through the addition of oxygen to form methionine-sulfoxide, leading to promote actin filament severing and prevent repolymerization. Acts as a cytoskeletal regulator that connects NEDD9 to intermediate filaments (By similarity). Also acts as a negative regulator of apoptosis via its interaction with STK38 and STK38L; acts by antagonizing STK38 and STK38L activation by MST1/STK4. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedDuring development, neurons are guided to their targets by short- and long-range attractive and repulsive cues. MICAL, a large multidomain protein, is required for the combined action of semaphorins and plexins in axon guidance. Here, we present the structure of the N-terminal region of MICAL (MICAL(fd)) determined by x-ray diffraction to 2.0 A resolution. The structure shows that MICAL(fd) is an FAD-containing module structurally similar to aromatic hydroxylases and amine oxidases. In addition, we present biochemical data that show that MICAL(fd) is a flavoenzyme that in the presence of NADPH reduces molecular oxygen to H(2)O(2) (K(m,NAPDH) = 222 microM; k(cat) = 77 sec(-1)), a molecule with known signaling properties. We propose that the H(2)O(2) produced by this reaction may be one of the signaling molecules involved in axon guidance by MICAL. Structure and activity of the axon guidance protein MICAL.,Nadella M, Bianchet MA, Gabelli SB, Barrila J, Amzel LM Proc Natl Acad Sci U S A. 2005 Nov 15;102(46):16830-5. Epub 2005 Nov 7. PMID:16275926[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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