| Name |
Aliases |
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Description |
| Evidence Code |
| Role |
Source [Interactions] |
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| HSH49 |
YOR319W |
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U2-snRNP associated splicing factor with similarity to the mammalian splicing factor SAP49; proposed to function as a U2-snRNP assembly factor along with Hsh155p and binding partner Cus1p; contains two RNA recognition motifs (RRM)
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| RSE1 |
YML049C |
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Protein involved in pre-mRNA splicing; component of the pre-spliceosome; associates with U2 snRNA; involved in ER to Golgi transport
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| HSH155 |
YMR288W |
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U2-snRNP associated splicing factor that forms extensive associations with the branch site-3' splice site-3' exon region upon prespliceosome formation; similarity to the mammalian U2 snRNP-associated splicing factor SAP155
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| LEA1 |
YPL213W |
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Component of U2 snRNP; disruption causes reduced U2 snRNP levels; physically interacts with Msl1p; invovled in telomere maintenance; putative homolog of human U2A' snRNP protein
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| PRP11 |
RNA11YDL043C |
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Subunit of the SF3a splicing factor complex, required for spliceosome assembly
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| SMB1 |
YER029C |
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Core Sm protein Sm B; part of heteroheptameric complex (with Smd1p, Smd2p, Smd3p, Sme1p, Smx3p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm B and Sm B'
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| CLF1 |
SYF3NTC77YLR117C |
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Essential splicesome assembly factor; contains multiple tetratricopeptide repeat (TPR) protein-binding motifs and interacts specifically with many spliceosome components, may serve as a scaffold during splicesome assembly
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| SMD3 |
SLT16YLR147C |
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Core Sm protein Sm D3; part of heteroheptameric complex (with Smb1p, Smd1p, Smd2p, Sme1p, Smx3p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm D3
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| PRP21 |
SPP91YJL203W |
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Subunit of the SF3a splicing factor complex, required for spliceosome assembly
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| PRP9 |
YDL030W |
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Subunit of the SF3a splicing factor complex, required for spliceosome assembly; acts after the formation of the U1 snRNP-pre-mRNA complex
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| PRP19 |
PSO4YLL036C |
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Splicing factor associated with the spliceosome; contains a U-box, a motif found in a class of ubiquitin ligases
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| PRP46 |
NTC50YPL151C |
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Splicing factor that is found in the Cef1p subcomplex of the spliceosome
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| BRR2 |
SNU246SLT22PRP44YER172C |
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RNA-dependent ATPase RNA helicase (DEIH box); required for disruption of U4/U6 base-pairing in native snRNPs to activate the spliceosome for catalysis; homologous to human U5-200kD
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| STO1 |
CBP80GCR3CBC1YMR125W |
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Large subunit of the nuclear mRNA cap-binding protein complex, interacts with Npl3p to carry nuclear poly(A)+ mRNA to cytoplasm; also involved in nuclear mRNA degradation and telomere maintenance; orthologous to mammalian CBP80
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| RDS3 |
YPR094W |
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Zinc cluster protein involved in pre-mRNA splicing and cycloheximide resistance
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| SMD2 |
YLR275W |
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Core Sm protein Sm D2; part of heteroheptameric complex (with Smb1p, Smd1p, Smd3p, Sme1p, Smx3p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm D2
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| SPP381 |
YBR152W |
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mRNA splicing factor, component of U4/U6.U5 tri-snRNP; interacts genetically and physically with Prp38p
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| PRP8 |
SLT21USA2RNA8YHR165C |
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Component of the U4/U6-U5 snRNP complex, involved in the second catalytic step of splicing; mutations of human Prp8 cause retinitis pigmentosa
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| SMD1 |
SPP92YGR074W |
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Core Sm protein Sm D1; part of heteroheptameric complex (with Smb1p, Smd2p, Smd3p, Sme1p, Smx3p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm D1
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| PRP6 |
RNA6TSM7269YBR055C |
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Splicing factor, component of the U4/U6-U5 snRNP complex
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| IST3 |
SNU17YIR005W |
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Component of the U2 snRNP, required for the first catalytic step of splicing and for spliceosomal assembly; interacts with Rds3p and is required for Mer1p-activated splicing
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| SNU23 |
YDL098C |
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Component of U4/U6.U5 snRNP involved in mRNA splicing via spliceosome
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| CUS1 |
YMR240C |
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Protein required for assembly of U2 snRNP into the spliceosome, forms a complex with Hsh49p and Hsh155p
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| MUD2 |
YKL074C |
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Protein involved in early pre-mRNA splicing; component of the pre-mRNA-U1 snRNP complex, the commitment complex; interacts with Msl5p/BBP splicing factor and Sub2p; similar to metazoan splicing factor U2AF65
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| SNU66 |
YOR308C |
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Component of the U4/U6.U5 snRNP complex involved in pre-mRNA splicing via spliceosome; has homology to human SART-1 and to an S. pombe protein; snu66 null mutation confers cold-sensitivity but is not lethal at normal growth temperatures
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| DIB1 |
SNU16YPR082C |
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17-kDa component of the U4/U6aU5 tri-snRNP, plays an essential role in pre-mRNA splicing, orthologue of hDIM1, the human U5-specific 15-kDa protein
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| PRP4 |
RNA4YPR178W |
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Splicing factor, component of the U4/U6-U5 snRNP complex
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| PRP39 |
YML046W |
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U1 snRNP protein involved in splicing, contains multiple tetriatricopeptide repeats
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| SNU114 |
GIN10YKL173W |
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GTPase component of U5 snRNP involved in mRNA splicing via spliceosome; binds directly to U5 snRNA; proposed to be involved in conformational changes of the spliceosome; similarity to ribosomal translocation factor EF-2
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| PRP31 |
YGR091W |
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Splicing factor, component of the U4/U6-U5 snRNP complex
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| MSL1 |
YIB9YIR009W |
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U2B component of U2 snRNP, involved in splicing, binds the U2 snRNA stem-loop IV in vitro; does not contain the conserved C-terminal RNA binding domain found in other family members
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| PRP3 |
RNA3YDR473C |
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Splicing factor, component of the U4/U6-U5 snRNP complex
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| BUD13 |
CWC26YGL174W |
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Subunit of the RES complex, which is required for nuclear pre-mRNA retention and splicing; involved in bud-site selection; diploid mutants display a unipolar budding pattern instead of the wild-type bipolar pattern
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| PAB1 |
YER165W |
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Poly(A) binding protein, part of the 3'-end RNA-processing complex, mediates interactions between the 5' cap structure and the 3' mRNA poly(A) tail, involved in control of poly(A) tail length, interacts with translation factor eIF-4G
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| CYC8 |
CRT8SSN6YBR112C |
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General transcriptional co-repressor, acts together with Tup1p; also acts as part of a transcriptional co-activator complex that recruits the SWI/SNF and SAGA complexes to promoters
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| SWI1 |
GAM3LPA1ADR6YPL016W |
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Subunit of the SWI/SNF chromatin remodeling complex, which regulates transcription by remodeling chromosomes; required for transcription of many genes, including ADH1, ADH2, GAL1, HO, INO1 and SUC2
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| SNT309 |
NTC25YPR101W |
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component of NineTeen complex (NTC) containing Prp19p involved in mRNA splicing, interacts physically and genetically with Prp19p
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| SMX2 |
SNP2YFL018W-AYFL017W-A |
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Core Sm protein Sm G; part of heteroheptameric complex (with Smb1p, Smd1p, Smd2p, Smd3p, Sme1p, and Smx3p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm G
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| SMX3 |
YPR182W |
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Core Sm protein Sm F; part of heteroheptameric complex (with Smb1p, Smd1p, Smd2p, Smd3p, Sme1p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm F
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| MIG1 |
TDS22SSN1CAT4YGL035C |
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Transcription factor involved in glucose repression; sequence specific DNA binding protein containing two Cys2His2 zinc finger motifs; regulated by the SNF1 kinase and the GLC7 phosphatase
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| XDJ1 |
YLR090W |
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Putative chaperone, homolog of E. coli DnaJ, closely related to Ydj1p; the authentic, non-tagged protein is detected in highly purified mitochondria in high-throughput studies
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| CRN1 |
YLR429W |
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Coronin, cortical actin cytoskeletal component that associates with the Arp2p/Arp3p complex to regulate its activity
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| CWC21 |
YDR482C |
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Component of a complex containing Cef1p, putatively involved in pre-mRNA splicing; may bind RNA; has similarity to S. pombe Cwf21p
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| STM1 |
MPT4YLR150W |
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Protein that binds G4 quadruplex and purine motif triplex nucleic acid; acts with Cdc13p to maintain telomere structure; interacts with ribosomes and subtelomeric Y' DNA; multicopy suppressor of tom1 and pop2 mutations
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| YOR093C |
YOR093C |
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Putative protein of unknown function; deletion causes sensitivity to unfolded protein response-inducing agents
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| YRA1 |
SHE11YDR381W |
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Nuclear protein that binds to RNA and to Mex67p, required for export of poly(A)+ mRNA from the nucleus; member of the REF (RNA and export factor binding proteins) family; another family member, Yra2p, can substitute for Yra1p function
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| CEF1 |
NTC85YMR213W |
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Essential splicing factor; associated with Prp19p and the spliceosome, contains an N-terminal c-Myb DNA binding motif necessary for cell viability but not for Prp19p association, evolutionarily conserved and homologous to S. pombe Cdc5p
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| YDL089W |
YDL089W |
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Protein of unknown function; interacts with meiotic division protein Csm1p; green fluorescent protein (GFP)-fusion protein localizes to the nuclear periphery, potential Cdc28p substrate
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| JSN1 |
PUF1YJR091C |
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Member of the Puf family of RNA-binding proteins, interacts with mRNAs encoding membrane-associated proteins; overexpression suppresses a tub2-150 mutation and causes increased sensitivity to benomyl in wild-type cells
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| MRT4 |
YKL009W |
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Protein involved in mRNA turnover and ribosome assembly, localizes to the nucleolus
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| PRP5 |
RNA5YBR237W |
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RNA helicase in the DEAD-box family, necessary for prespliceosome formation, bridges U1 and U2 snRNPs and enables stable U2 snRNP association with intron RNA
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| GTS1 |
FHT1LSR1YGL181W |
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Protein containing a zinc-finger in the N-terminus and a long Gln-rich region in the C-terminus; regulates ultradian rhythm, cell size, cell cycle, lifespan, sporulation, heat tolerance, and multidrug transport
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| SLS1 |
YLR139C |
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Mitochondrial membrane protein that coordinates expression of mitochondrially-encoded genes; may facilitate delivery of mRNA to membrane-bound translation machinery
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