1ytq: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older edit
No edit summary
No edit summary
 
Line 3: Line 3:
<StructureSection load='1ytq' size='340' side='right'caption='[[1ytq]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
<StructureSection load='1ytq' size='340' side='right'caption='[[1ytq]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1ytq]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YTQ OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1YTQ FirstGlance]. <br>
<table><tr><td colspan='2'>[[1ytq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YTQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1YTQ FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2bb2|2bb2]]</div></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CRYBB2 ([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'>[https://proteopedia.org/fgij/fg.htm?mol=1ytq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ytq OCA], [https://pdbe.org/1ytq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ytq RCSB], [https://www.ebi.ac.uk/pdbsum/1ytq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ytq ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1ytq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ytq OCA], [http://pdbe.org/1ytq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ytq RCSB], [http://www.ebi.ac.uk/pdbsum/1ytq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ytq ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[http://www.uniprot.org/uniprot/CRBB2_HUMAN CRBB2_HUMAN]] Cerulean cataract;Nuclear cataract;Cataract, Coppock-like;Cataract-microcornea syndrome;Total congenital cataract;Cataract with Y-shaped suture opacities. Cataract, congenital, cerulean type, 2 (CCA2) [MIM:[http://omim.org/entry/601547 601547]]: A cerulean form of autosomal dominant congenital cataract. Cerulean cataract is characterized by peripheral bluish and white opacifications organized in concentric layers with occasional central lesions arranged radially. The opacities are observed in the superficial layers of the fetal nucleus as well as the adult nucleus of the lens. Involvement is usually bilateral. Visual acuity is only mildly reduced in childhood. In adulthood, the opacifications may progress, making lens extraction necessary. Histologically the lesions are described as fusiform cavities between lens fibers which contain a deeply staining granular material. Although the lesions may take on various colors, a dull blue is the most common appearance and is responsible for the designation cerulean cataract. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:9158139</ref>  Cataract, sutural, with punctate and cerulean opacities (CSPC) [MIM:[http://omim.org/entry/607133 607133]]: A form of cataract characterized by white opacification around the anterior and posterior Y sutures, and grayish and bluish, spindle shaped, oval punctate and cerulean opacities of various sizes arranged in lamellar form. The spots are more concentrated towards the peripheral layers and do not delineate the embryonal or fetal nucleus. Phenotypic variation with respect to the size and density of the sutural opacities as well as the number and position of punctate and cerulean spots is observed among affected subjects. Note=The disease is caused by mutations affecting the gene represented in this entry.  Cataract Coppock-like (CCL) [MIM:[http://omim.org/entry/604307 604307]]: A congenital pulverulent disk-like opacity involving the embryonic nucleus with many tiny white dots in the lamellar portion of the lens. It is usually bilateral and dominantly inherited. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:10634616</ref>
[https://www.uniprot.org/uniprot/CRBB2_HUMAN CRBB2_HUMAN] Cerulean cataract;Nuclear cataract;Cataract, Coppock-like;Cataract-microcornea syndrome;Total congenital cataract;Cataract with Y-shaped suture opacities. Cataract, congenital, cerulean type, 2 (CCA2) [MIM:[https://omim.org/entry/601547 601547]: A cerulean form of autosomal dominant congenital cataract. Cerulean cataract is characterized by peripheral bluish and white opacifications organized in concentric layers with occasional central lesions arranged radially. The opacities are observed in the superficial layers of the fetal nucleus as well as the adult nucleus of the lens. Involvement is usually bilateral. Visual acuity is only mildly reduced in childhood. In adulthood, the opacifications may progress, making lens extraction necessary. Histologically the lesions are described as fusiform cavities between lens fibers which contain a deeply staining granular material. Although the lesions may take on various colors, a dull blue is the most common appearance and is responsible for the designation cerulean cataract. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:9158139</ref>  Cataract, sutural, with punctate and cerulean opacities (CSPC) [MIM:[https://omim.org/entry/607133 607133]: A form of cataract characterized by white opacification around the anterior and posterior Y sutures, and grayish and bluish, spindle shaped, oval punctate and cerulean opacities of various sizes arranged in lamellar form. The spots are more concentrated towards the peripheral layers and do not delineate the embryonal or fetal nucleus. Phenotypic variation with respect to the size and density of the sutural opacities as well as the number and position of punctate and cerulean spots is observed among affected subjects. Note=The disease is caused by mutations affecting the gene represented in this entry.  Cataract Coppock-like (CCL) [MIM:[https://omim.org/entry/604307 604307]: A congenital pulverulent disk-like opacity involving the embryonic nucleus with many tiny white dots in the lamellar portion of the lens. It is usually bilateral and dominantly inherited. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:10634616</ref>  
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CRBB2_HUMAN CRBB2_HUMAN]] Crystallins are the dominant structural components of the vertebrate eye lens.  
[https://www.uniprot.org/uniprot/CRBB2_HUMAN CRBB2_HUMAN] Crystallins are the dominant structural components of the vertebrate eye lens.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Line 22: Line 21:
</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=1ytq ConSurf].
</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=1ytq ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The superfamily of eye lens betagamma-crystallins is highly modularized, with Greek key motifs being used to form symmetric domains. Sequences of monomeric gamma-crystallins and oligomeric beta-crystallins fold into two domains that pair about a further conserved symmetric interface. Conservation of this assembly interface by domain swapping is the device adopted by family member betaB2-crystallin to form a solution dimer. However, the betaB1-crystallin solution dimer is formed from an interface used by the domain-swapped dimer to form a tetramer in the crystal lattice. Comparison of these two structures indicated an intriguing relationship between linker conformation, interface ion pair networks, and higher assembly. Here the X-ray structure of recombinant human betaB2-crystallin showed that domain swapping was determined by the sequence and not assembly conditions. The solution characteristics of mutants that were designed to alter an ion pair network at a higher assembly interface and a mutant that changed a proline showed they remained dimeric. X-ray crystallography showed that the dimeric mutants did not reverse domain swapping. Thus, the sequence of betaB2-crystallin appears well optimized for domain swapping. However, a charge-reversal mutation to the conserved domain-pairing interface showed drastic changes to solution behavior. It appears that the higher assembly of the betagamma-crystallin domains has exploited symmetry to create diversity while avoiding aggregation. These are desirable attributes for proteins that have to exist at very high concentration for a very long time.
Mutation of interfaces in domain-swapped human betaB2-crystallin.,Smith MA, Bateman OA, Jaenicke R, Slingsby C Protein Sci. 2007 Apr;16(4):615-25. Epub 2007 Feb 27. PMID:17327390<ref>PMID:17327390</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1ytq" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
Line 38: Line 28:
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Bateman, O A]]
[[Category: Bateman OA]]
[[Category: Slingsby, C]]
[[Category: Slingsby C]]
[[Category: Smith, M A]]
[[Category: Smith MA]]
[[Category: Crystallin]]
[[Category: Domain swapping]]
[[Category: Greek key]]
[[Category: Structural protein]]

Latest revision as of 16:38, 13 March 2024

Structure of Native Human Beta B2 CrystallinStructure of Native Human Beta B2 Crystallin

Structural highlights

1ytq is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.7Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

CRBB2_HUMAN Cerulean cataract;Nuclear cataract;Cataract, Coppock-like;Cataract-microcornea syndrome;Total congenital cataract;Cataract with Y-shaped suture opacities. Cataract, congenital, cerulean type, 2 (CCA2) [MIM:601547: A cerulean form of autosomal dominant congenital cataract. Cerulean cataract is characterized by peripheral bluish and white opacifications organized in concentric layers with occasional central lesions arranged radially. The opacities are observed in the superficial layers of the fetal nucleus as well as the adult nucleus of the lens. Involvement is usually bilateral. Visual acuity is only mildly reduced in childhood. In adulthood, the opacifications may progress, making lens extraction necessary. Histologically the lesions are described as fusiform cavities between lens fibers which contain a deeply staining granular material. Although the lesions may take on various colors, a dull blue is the most common appearance and is responsible for the designation cerulean cataract. Note=The disease is caused by mutations affecting the gene represented in this entry.[1] Cataract, sutural, with punctate and cerulean opacities (CSPC) [MIM:607133: A form of cataract characterized by white opacification around the anterior and posterior Y sutures, and grayish and bluish, spindle shaped, oval punctate and cerulean opacities of various sizes arranged in lamellar form. The spots are more concentrated towards the peripheral layers and do not delineate the embryonal or fetal nucleus. Phenotypic variation with respect to the size and density of the sutural opacities as well as the number and position of punctate and cerulean spots is observed among affected subjects. Note=The disease is caused by mutations affecting the gene represented in this entry. Cataract Coppock-like (CCL) [MIM:604307: A congenital pulverulent disk-like opacity involving the embryonic nucleus with many tiny white dots in the lamellar portion of the lens. It is usually bilateral and dominantly inherited. Note=The disease is caused by mutations affecting the gene represented in this entry.[2]

Function

CRBB2_HUMAN Crystallins are the dominant structural components of the vertebrate eye lens.

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. ↑ Litt M, Carrero-Valenzuela R, LaMorticella DM, Schultz DW, Mitchell TN, Kramer P, Maumenee IH. Autosomal dominant cerulean cataract is associated with a chain termination mutation in the human beta-crystallin gene CRYBB2. Hum Mol Genet. 1997 May;6(5):665-8. PMID:9158139
  2. ↑ Gill D, Klose R, Munier FL, McFadden M, Priston M, Billingsley G, Ducrey N, Schorderet DF, Heon E. Genetic heterogeneity of the Coppock-like cataract: a mutation in CRYBB2 on chromosome 22q11.2. Invest Ophthalmol Vis Sci. 2000 Jan;41(1):159-65. PMID:10634616

1ytq, resolution 1.70Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA
Retrieved from "https://proteopedia.openfox.io/wiki/index.php?title=1ytq&oldid=4088226"