1x5t: Difference between revisions

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[[Image:1x5t.png|left|200px]]
{{STRUCTURE_1x5t|  PDB=1x5t  |  SCENE=  }}  
{{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===
==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.


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

Revision as of 01:26, 25 March 2013

Template:STRUCTURE 1x5t

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

DiseaseDisease

[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]

FunctionFunction

[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.

About this StructureAbout this Structure

1x5t is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.

See AlsoSee Also

ReferenceReference

  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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