2k1x: Difference between revisions
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< | ==NMR solution structure of M-crystallin in calcium free form (apo).== | ||
<StructureSection load='2k1x' size='340' side='right'caption='[[2k1x]]' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2k1x]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanosarcina_acetivorans Methanosarcina acetivorans]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K1X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2K1X FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2k1x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k1x OCA], [https://pdbe.org/2k1x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2k1x RCSB], [https://www.ebi.ac.uk/pdbsum/2k1x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2k1x ProSAT]</span></td></tr> | ||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q8TMX3_METAC Q8TMX3_METAC] | |||
== 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/k1/2k1x_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=2k1x ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The lens betagamma-crystallin superfamily has many diverse but topologically related members belonging to various taxa. Based on structural topology, these proteins are considered as evolutionarily related to lens crystallins, suggesting their origin from a common ancestor. Proteins with betagamma-crystallin domains, although found in some eukaryotes and eubacteria, have not yet been reported in archaea. Sequence searches in the genome of the archaebacterium Methanosarcina acetivorans revealed the presence of a protein annotated as a betagamma-crystallin family protein, named M-crystallin. Solution structure of this protein indicates a typical betagamma-crystallin fold with a paired Greek-key motif. Among the known structures of betagamma-crystallin members, M-crystallin was found to be structurally similar to the vertebrate lens betagamma-crystallins. The Ca(2+)-binding properties of this primordial protein are somewhat more similar to those of vertebrate betagamma-crystallins than to those of bacterial homologues. These observations, taken together, suggest that amphibian and vertebrate betagamma-crystallin domains are evolutionarily more related to archaeal homologues than to bacterial homologues. Additionally, identification of a betagamma-crystallin homologue in archaea allows us to demonstrate the presence of this domain in all the three domains of life. | |||
Solution Structure and Calcium-Binding Properties of M-Crystallin, A Primordial betagamma-Crystallin from Archaea.,Barnwal RP, Jobby MK, Devi KM, Sharma Y, Chary KV J Mol Biol. 2008 Dec 31. PMID:19138688<ref>PMID:19138688</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2k1x" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Crystallin 3D structures|Crystallin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
== | |||
< | |||
[[Category: Methanosarcina acetivorans]] | [[Category: Methanosarcina acetivorans]] | ||
[[Category: Barnwal | [[Category: Barnwal R]] | ||
[[Category: Chary | [[Category: Chary K]] | ||
[[Category: Devi | [[Category: Devi K]] | ||
[[Category: Jobby | [[Category: Jobby M]] | ||
[[Category: Sharma | [[Category: Sharma Y]] | ||
Latest revision as of 22:08, 29 May 2024
NMR solution structure of M-crystallin in calcium free form (apo).NMR solution structure of M-crystallin in calcium free form (apo).
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe lens betagamma-crystallin superfamily has many diverse but topologically related members belonging to various taxa. Based on structural topology, these proteins are considered as evolutionarily related to lens crystallins, suggesting their origin from a common ancestor. Proteins with betagamma-crystallin domains, although found in some eukaryotes and eubacteria, have not yet been reported in archaea. Sequence searches in the genome of the archaebacterium Methanosarcina acetivorans revealed the presence of a protein annotated as a betagamma-crystallin family protein, named M-crystallin. Solution structure of this protein indicates a typical betagamma-crystallin fold with a paired Greek-key motif. Among the known structures of betagamma-crystallin members, M-crystallin was found to be structurally similar to the vertebrate lens betagamma-crystallins. The Ca(2+)-binding properties of this primordial protein are somewhat more similar to those of vertebrate betagamma-crystallins than to those of bacterial homologues. These observations, taken together, suggest that amphibian and vertebrate betagamma-crystallin domains are evolutionarily more related to archaeal homologues than to bacterial homologues. Additionally, identification of a betagamma-crystallin homologue in archaea allows us to demonstrate the presence of this domain in all the three domains of life. Solution Structure and Calcium-Binding Properties of M-Crystallin, A Primordial betagamma-Crystallin from Archaea.,Barnwal RP, Jobby MK, Devi KM, Sharma Y, Chary KV J Mol Biol. 2008 Dec 31. PMID:19138688[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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