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{{STRUCTURE_1x5t|  PDB=1x5t  |  SCENE=  }}
==Solution structure of the second RRM domain in splicing factor = 3B==
===Solution structure of the second RRM domain in splicing factor = 3B===
<StructureSection load='1x5t' size='340' side='right' caption='[[1x5t]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
 
== Structural highlights ==
==Disease==
<table><tr><td colspan='2'>[[1x5t]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X5T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1X5T FirstGlance]. <br>
[[http://www.uniprot.org/uniprot/SF3B4_HUMAN SF3B4_HUMAN]] Defects in SF3B4 are the cause of acrofacial dysostosis type 1 (AFD1) [MIM:[http://omim.org/entry/154400 154400]]. AFD1 is a form of acrofacial dysostosis, a group of disorders which are characterized by malformation of the craniofacial skeleton and the limbs. The major facial features of AFD1 include downslanted palpebral fissures, midface retrusion, and micrognathia, the latter of which often requires the placement of a tracheostomy in early childhood. Limb defects typically involve the anterior (radial) elements of the upper limbs and manifest as small or absent thumbs, triphalangeal thumbs, radial hyoplasia or aplasia, and radioulnar synostosis. Phocomelia of the upper limbs and, occasionally, lower-limb defects have also been reported.<ref>PMID:22541558</ref>  
</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SF3B4, SAP49 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
 
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1x5t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x5t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1x5t RCSB], [http://www.ebi.ac.uk/pdbsum/1x5t PDBsum], [http://www.topsan.org/Proteins/RSGI/1x5t TOPSAN]</span></td></tr>
==Function==
<table>
== Disease ==
[[http://www.uniprot.org/uniprot/SF3B4_HUMAN SF3B4_HUMAN]] Defects in SF3B4 are the cause of acrofacial dysostosis type 1 (AFD1) [MIM:[http://omim.org/entry/154400 154400]]. AFD1 is a form of acrofacial dysostosis, a group of disorders which are characterized by malformation of the craniofacial skeleton and the limbs. The major facial features of AFD1 include downslanted palpebral fissures, midface retrusion, and micrognathia, the latter of which often requires the placement of a tracheostomy in early childhood. Limb defects typically involve the anterior (radial) elements of the upper limbs and manifest as small or absent thumbs, triphalangeal thumbs, radial hyoplasia or aplasia, and radioulnar synostosis. Phocomelia of the upper limbs and, occasionally, lower-limb defects have also been reported.<ref>PMID:22541558</ref>
== Function ==
[[http://www.uniprot.org/uniprot/SF3B4_HUMAN SF3B4_HUMAN]] Subunit of the splicing factor SF3B required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex. SF3B4 has been found in complex 'B' and 'C' as well. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron.  
[[http://www.uniprot.org/uniprot/SF3B4_HUMAN SF3B4_HUMAN]] Subunit of the splicing factor SF3B required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex. SF3B4 has been found in complex 'B' and 'C' as well. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron.  
 
== Evolutionary Conservation ==
==About this Structure==
[[Image:Consurf_key_small.gif|200px|right]]
[[1x5t]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X5T OCA].  
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/x5/1x5t_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>


==See Also==
==See Also==
*[[Pre-mRNA-splicing factor|Pre-mRNA-splicing factor]]
*[[Pre-mRNA-splicing factor|Pre-mRNA-splicing factor]]
 
== References ==
==Reference==
<references/>
<references group="xtra"/><references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Inoue, M.]]
[[Category: Inoue, M.]]

Revision as of 01:02, 30 September 2014

Solution structure of the second RRM domain in splicing factor = 3BSolution structure of the second RRM domain in splicing factor = 3B

Structural highlights

1x5t is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:SF3B4, SAP49 (Homo sapiens)
Resources:FirstGlance, OCA, RCSB, PDBsum, TOPSAN

Disease

[SF3B4_HUMAN] Defects in SF3B4 are the cause of acrofacial dysostosis type 1 (AFD1) [MIM:154400]. AFD1 is a form of acrofacial dysostosis, a group of disorders which are characterized by malformation of the craniofacial skeleton and the limbs. The major facial features of AFD1 include downslanted palpebral fissures, midface retrusion, and micrognathia, the latter of which often requires the placement of a tracheostomy in early childhood. Limb defects typically involve the anterior (radial) elements of the upper limbs and manifest as small or absent thumbs, triphalangeal thumbs, radial hyoplasia or aplasia, and radioulnar synostosis. Phocomelia of the upper limbs and, occasionally, lower-limb defects have also been reported.[1]

Function

[SF3B4_HUMAN] Subunit of the splicing factor SF3B required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex. SF3B4 has been found in complex 'B' and 'C' as well. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron.

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. ↑ Bernier FP, Caluseriu O, Ng S, Schwartzentruber J, Buckingham KJ, Innes AM, Jabs EW, Innis JW, Schuette JL, Gorski JL, Byers PH, Andelfinger G, Siu V, Lauzon J, Fernandez BA, McMillin M, Scott RH, Racher H, Majewski J, Nickerson DA, Shendure J, Bamshad MJ, Parboosingh JS. Haploinsufficiency of SF3B4, a component of the pre-mRNA spliceosomal complex, causes Nager syndrome. Am J Hum Genet. 2012 May 4;90(5):925-33. doi: 10.1016/j.ajhg.2012.04.004. Epub, 2012 Apr 26. PMID:22541558 doi:10.1016/j.ajhg.2012.04.004
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