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| Prp8 is a multi-domain protein containing an RNA-binding domain and a Jab1/MPN domain. | | <scene name='46/462200/Cv/2'>Prp8 is a multi-domain protein containing an RNA-binding domain and a Jab1/MPN domain</scene>. |
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Revision as of 08:33, 7 August 2016
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Function
Pre-mRNA-splicing factors (Prp) are the proteins which associate with mRNA at its various splicing sites to produce alternative splicing[1].
- Prp3b is part of the U2 small nuclear ribonucleoproteins complex (U2 snRNP)
- Prp8 functions as a scaffold which mediates the ordered assembly of spliceosomal proteins and snRNAs. For details see Prp8
- Prp18 and Bud31 are essential for the catalytic step in pre-mRNA splicing process.
- snRNA-associated-splicing factor 24 binds preferentially to the U4/U6 hybrid snRNAs. For details see Prp24
- For Prp19 see Prp19
- Prp31 functions in forming the U4/U5-U6 tri-snRNP.
- For Prp40 see Prp40.
- Prpcwc2 is a yeast splicing factor which plays a role in the generation of a functional splicing center Prp RBM22 is the human homolog of Prpcwc2.
- Prpcwc26 or Bud13 belongs to the pre-mRNA retention and splicing complex RES.
Disease
Mutations in Prp8 and Prp31 cause retinitis pigmentosa[2].
Structural highlights
Prp8 is a multi-domain protein containing an RNA-binding domain and a Jab1/MPN domain.
- ↑ Misteli T, Spector DL. RNA polymerase II targets pre-mRNA splicing factors to transcription sites in vivo. Mol Cell. 1999 Jun;3(6):697-705. PMID:10394358
- ↑ McKie AB, McHale JC, Keen TJ, Tarttelin EE, Goliath R, van Lith-Verhoeven JJ, Greenberg J, Ramesar RS, Hoyng CB, Cremers FP, Mackey DA, Bhattacharya SS, Bird AC, Markham AF, Inglehearn CF. Mutations in the pre-mRNA splicing factor gene PRPC8 in autosomal dominant retinitis pigmentosa (RP13). Hum Mol Genet. 2001 Jul 15;10(15):1555-62. PMID:11468273
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3D Structures of pre-mRNA splicing factors
Updated on 07-August-2016
{"openlevels":0}
- Pre-mRNA-splicing factor 2
- Prp8 – hPrp P33 subunit + Ser/Thr-protein kinase – human
- Prp24 – hPrp P33 subunit
- Pre-mRNA-splicing factor 3
- Prp19 – hPrp PWI domain - NMR
- Pre-mRNA-splicing factor 3B
- Prp40, 2f9d, 2f9j – hPrp residues 377-415 + pre-mRNA branch site protein 14
- 2fho - hPrp residues 379-424 + spliceosomal protein P14 - NMR
- 2do5 – hPrp subunit 2 – NMR
- 1x5t - hPrp subunit 4 – NMR
- 1x5u - hPrp subunit 4 RNA-binding domain – NMR
- Pre-mRNA-splicing factor 8
- 3sbt, 4ilh – yPrp RNAseH like domain + A1 cistron-splicing factor AAR2 – yeast
- 4jk7, 4jk9, 3e9o, 3e9p, 3e66 - yPrp RNA-binding domain
- 4ilj, 4jk8, 4jka, 4jkb, 4jkc, 4jkd, 4jke, 4jkf, 4jkg, 4jkh - yPrp RNA-binding domain (mutant)
- 3zef, 4i43 – yPrp + A1 cistron-splicing factor AAR2
- 2og4, 3sbg - yPrp Jab1/MPN domain
- 4bgd – yPrp Jab1/MPN domain + pre-mRNA-splicing helicase BRR2
- 4kit – yPrp Jab1/MPN domain + U5 small nuclear ribonucleoprotein helicase
- 4ilg – yPrp Jab1/MPN+RNA-binding domains + A1 cistron-splicing factor AAR2
- 4bgd – yPrp Jab1/MPN+RNA-binding domains + A1 cistron-splicing factor AAR2 + pre-mRNA-splicing helicase BRR2
- 3lru – hPrp residues 1831-1990
- 3e9l, 3enb – hPrp endonuclease domain
- 2p8r – CePrp C terminal (mutant) – Caenorhabditis elegans
- 2p87 – CePrp C terminal
- Pre-mRNA-splicing factor 9
- 4dgw – yPrp + Prp 21 + Prp 11
- Pre-mRNA-splicing factor 11
- 4dgw – yPrp + Prp 21 + Prp 9
- Pre-mRNA-splicing factor 18
- 2dk4 – hPrp splicing factor motif domain - NMR
- Pre-mRNA-splicing factor 19
- 3lrv – yPrp WD40 domain
- 2bay – yPrp U-box
- 1n87 - yPrp U-box - NMR
- Pre-mRNA-splicing factor 20
- 2i2y – Prp RNA-binding domain + RNA – Streptococcus – NMR
- 2i38 - hPrp RNA-binding domain (mutant) – NMR
- Pre-mRNA-splicing factor 21
- 4dgw – yPrp + Prp 9 + Prp 11
- snRNA-associated-splicing factor 24
- 2l9w – yPrp C terminal – NMR
- 2kh9 – yPrp residues 115-197 + RNA – NMR
- 2go9 – yPrp RNA-binding domains – NMR
- 2ghp - yPrp RNA-binding domains
- Pre-mRNA-splicing factor 31
- 2ozb – hPrp + RNA + tri-snRNP
- 3siu, 3siv – hPrp + NHP2-like protein + snRNP
- Pre-mRNA-splicing factor 40
- 1o6w – yPrp WW domain – yeast - NMR
- 2b7e – yPrp FF1 domain - NMR
- 2kfd – yPrp FF4 domain - NMR
- Pre-mRNA-splicing factor 43P
- Pre-mRNA-splicing factor cwc2
- Pre-mRNA-splicing factor cwc26
- 2mkc – yPrp + U2 SNRNP component IST3 + Pre-mRNA leakage protein
- 4uqt – yPrp + U2 SNRNP component IST3
- Pre-mRNA-splicing factor bud31
- Pre-mRNA-splicing factor sad1
- Pre-mRNA-splicing factor RBM22
- 2ytc – yPrp RNA-binding domain - NMR
- Pre-mRNA-splicing factor RDS3
- Pre-mRNA-splicing factor URN1
- 2juc – yPrp FF domain - NMR
References
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