Gene Symbol: CLF1
Description: Clf1p
Alias: NTC77, SYF3, Clf1p
Species: Saccharomyces cerevisiae S288c
Products:     CLF1

Top Publications

  1. Chen C, Yu W, Tsao T, Wang L, Chen H, Lin J, et al. Functional and physical interactions between components of the Prp19p-associated complex. Nucleic Acids Res. 2002;30:1029-37 pubmed
    ..Genetic analysis suggests that Ntc31p, Ntc30p and Ntc20p may play roles in modulating the function of Ntc90p. ..
  2. Chung S, McLean M, Rymond B. Yeast ortholog of the Drosophila crooked neck protein promotes spliceosome assembly through stable U4/U6.U5 snRNP addition. RNA. 1999;5:1042-54 pubmed
    ..b>Clf1p is required in vivo and in vitro for pre-mRNA 5' splice site cleavage...
  3. Vincent K, Wang Q, Jay S, Hobbs K, Rymond B. Genetic interactions with CLF1 identify additional pre-mRNA splicing factors and a link between activators of yeast vesicular transport and splicing. Genetics. 2003;164:895-907 pubmed
    b>Clf1 is a conserved spliceosome assembly factor composed predominately of TPR repeats. Here we show that the TPR elements are not functionally equivalent, with the amino terminus of Clf1 being especially sensitive to change...
  4. Gasch A, Wiesner S, Martin Malpartida P, Ramirez Espain X, Ruiz L, Macias M. The structure of Prp40 FF1 domain and its interaction with the crn-TPR1 motif of Clf1 gives a new insight into the binding mode of FF domains. J Biol Chem. 2006;281:356-64 pubmed
    ..has been shown to associate with the 5' end of U1 small nuclear RNA and to interact directly with two proteins, the Clf1 (Crooked neck-like factor 1) and the phosphorylated repeats of the C-terminal domain of RNA polymerase II (CTD-..
  5. Wang Q, He J, Lynn B, Rymond B. Interactions of the yeast SF3b splicing factor. Mol Cell Biol. 2005;25:10745-54 pubmed
    ..These data establish the concordance of yeast and mammalian SF3b complexes, implicate accessory splicing factors in U2 snRNP function, and support SF3b contribution from early pre-mRNP recognition to late steps in splicing. ..
  6. Chanarat S, Seizl M, Strasser K. The Prp19 complex is a novel transcription elongation factor required for TREX occupancy at transcribed genes. Genes Dev. 2011;25:1147-58 pubmed publisher
  7. Gahura O, Abrhámová K, Skruzny M, Valentová A, Munzarová V, Folk P, et al. Prp45 affects Prp22 partition in spliceosomal complexes and splicing efficiency of non-consensus substrates. J Cell Biochem. 2009;106:139-51 pubmed publisher
    ..synthetic lethality screen, we found that prp45(1-169) genetically interacts with alleles of NTC members SYF1, CLF1/SYF3, NTC20, and CEF1, and 2nd step splicing factors SLU7, PRP17, PRP18, and PRP22...
  8. Tsai R, Fu R, Yeh F, Tseng C, Lin Y, Huang Y, et al. Spliceosome disassembly catalyzed by Prp43 and its associated components Ntr1 and Ntr2. Genes Dev. 2005;19:2991-3003 pubmed
    ..This is the first demonstration of physical disassembly of the spliceosome, catalyzed by a complex containing a DExD/H-box RNA helicase and two accessory factors, which might function in targeting the helicase to the correct substrate. ..
  9. Liu Y, Chen H, Wu N, Cheng S. A novel splicing factor, Yju2, is associated with NTC and acts after Prp2 in promoting the first catalytic reaction of pre-mRNA splicing. Mol Cell Biol. 2007;27:5403-13 pubmed

More Information


  1. Ben Yehuda S, Dix I, Russell C, McGarvey M, Beggs J, Kupiec M. Genetic and physical interactions between factors involved in both cell cycle progression and pre-mRNA splicing in Saccharomyces cerevisiae. Genetics. 2000;156:1503-17 pubmed
    ..The other three, SYF1, SYF2, and SYF3, represent genes also involved in cell cycle progression and in pre-mRNA splicing...
  2. Chang K, Chen H, Cheng S. Ntc90 is required for recruiting first step factor Yju2 but not for spliceosome activation. RNA. 2009;15:1729-39 pubmed publisher
    ..of at least eight protein components, including two tetratricopeptide repeat (TPR)-containing proteins, Ntc90 and Ntc77. Ntc90 has nine copies of the TPR with seven clustered in the carboxy-terminal half of the protein, and interacts ..
  3. Wysocka M, Rytka J, Kurlandzka A. Saccharomyces cerevisiae CSM1 gene encoding a protein influencing chromosome segregation in meiosis I interacts with elements of the DNA replication complex. Exp Cell Res. 2004;294:592-602 pubmed
    ..with three members of the Mcm2-7 family of proteins involved in the initiation of DNA replication, and with Clf1p also implicated in replication...
  4. Chiu Y, Liu Y, Chiang T, Yeh T, Tseng C, Wu N, et al. Cwc25 is a novel splicing factor required after Prp2 and Yju2 to facilitate the first catalytic reaction. Mol Cell Biol. 2009;29:5671-8 pubmed publisher
    ..These results have implications for the possible roles of Cwc25 and HP-X in facilitating juxtaposition of the 5' splice site and the branch point during the first catalytic reaction...
  5. Chiang T, Cheng S. A weak spliceosome-binding domain of Yju2 functions in the first step and bypasses Prp16 in the second step of splicing. Mol Cell Biol. 2013;33:1746-55 pubmed publisher
  6. Wang Q, Zhang L, Lynn B, Rymond B. A BBP-Mud2p heterodimer mediates branchpoint recognition and influences splicing substrate abundance in budding yeast. Nucleic Acids Res. 2008;36:2787-98 pubmed publisher
    ..Using mutants of MUD2 and BBP, we show that the BBP-Mud2p complex bridges partner-specific Prp39p, Mer1p, Clf1p and Smy2p two-hybrid interactions...
  7. Zhu W, Rainville I, Ding M, Bolus M, Heintz N, Pederson D. Evidence that the pre-mRNA splicing factor Clf1p plays a role in DNA replication in Saccharomyces cerevisiae. Genetics. 2002;160:1319-33 pubmed
    b>Clf1p is an essential, highly conserved protein in S. cerevisiae that has been implicated in pre-mRNA splicing. Clf1p's ortholog in Drosophila, Crn, is required for normal cell proliferation...
  8. Yeh T, Liu H, Chung C, Wu N, Liu Y, Cheng S. Splicing factor Cwc22 is required for the function of Prp2 and for the spliceosome to escape from a futile pathway. Mol Cell Biol. 2011;31:43-53 pubmed publisher
    ..Thus, Cwc22 represents a novel ATP-dependent step one factor besides Prp2 and Spp2 and has a distinct role from that of Spp2 in mediating the function of Prp2...
  9. Russell C, Ben Yehuda S, Dix I, Kupiec M, Beggs J. Functional analyses of interacting factors involved in both pre-mRNA splicing and cell cycle progression in Saccharomyces cerevisiae. RNA. 2000;6:1565-72 pubmed
    ..that they associate weakly or transiently with U6 and U5 snRNAs, and that Syf1p and Syf3p (also known as Clf1p) are required for pre-mRNA splicing...
  10. Carrocci T, Zoerner D, Paulson J, Hoskins A. SF3b1 mutations associated with myelodysplastic syndromes alter the fidelity of branchsite selection in yeast. Nucleic Acids Res. 2017;45:4837-4852 pubmed publisher
    ..We propose that SF3b1 functions to stabilize weak U2/BS duplexes to drive spliceosome assembly and splicing. ..