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LSM2 LSM2 AAR2 AAR2 PRP6 PRP6 MUD1 MUD1 SPP381 SPP381 PRP5 PRP5 PRP9 PRP9 PRP11 PRP11 LUC7 LUC7 SNU23 SNU23 PRP42 PRP42 SNU56 SNU56 PRP28 PRP28 LSM6 LSM6 PRP3 PRP3 SMB1 SMB1 LSM4 LSM4 LSM5 LSM5 BRR2 BRR2 SMX2 SMX2 SAD1 SAD1 IRC6 IRC6 SNU71 SNU71 SMD1 SMD1 PRP38 PRP38 PRP31 PRP31 NAM8 NAM8 LIN1 LIN1 SNP1 SNP1 MSL1 MSL1 PRP21 PRP21 LSM8 LSM8 PRP40 PRP40 MUD2 MUD2 MSL5 MSL5 SMD3 SMD3 SMD2 SMD2 YHC1 YHC1 LSM3 LSM3 PRP39 PRP39 RSE1 RSE1 STO1 STO1 CUS1 CUS1 PRP24 PRP24 HSH155 HSH155 YSF3 YSF3 LSM7 LSM7 CUS2 CUS2 SME1 SME1 SNU66 SNU66 HSH49 HSH49 CBC2 CBC2 LEA1 LEA1 DIB1 DIB1 RDS3 RDS3 PRP4 PRP4 SMX3 SMX3
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
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LSM2U6 snRNA-associated Sm-like protein LSm2; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA; relocalizes from nucleus to cytoplasmic foci upon DNA replication stress. (95 aa)
AAR2A1 cistron-splicing factor AAR2; Component of the U5 snRNP complex; required for splicing of U3 precursors; originally described as a splicing factor specifically required for splicing pre-mRNA of the MATa1 cistron; Belongs to the AAR2 family. (355 aa)
PRP6Splicing factor; component of the U4/U6-U5 snRNP complex. (899 aa)
MUD1U1 snRNP A protein; homolog of human U1-A; involved in nuclear mRNA splicing; Belongs to the RRM U1 A/B'' family. (298 aa)
SPP381Pre-mRNA-splicing factor SPP381; mRNA splicing factor, component of U4/U6.U5 tri-snRNP; interacts genetically and physically with Prp38p; relocalizes to the cytosol in response to hypoxia; Belongs to the SPP381 family. (291 aa)
PRP5Pre-mRNA-processing ATP-dependent RNA helicase PRP5; 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; Belongs to the DEAD box helicase family. DDX46/PRP5 subfamily. (849 aa)
PRP9Pre-mRNA-splicing factor PRP9; Subunit of the SF3a splicing factor complex; required for spliceosome assembly; acts after the formation of the U1 snRNP-pre-mRNA complex; Belongs to the SF3A3 family. (530 aa)
PRP11Pre-mRNA-splicing factor PRP11; Subunit of the SF3a splicing factor complex; required for spliceosome assembly. (266 aa)
LUC7Essential protein associated with the U1 snRNP complex; splicing factor involved in recognition of 5' splice site; contains two zinc finger motifs; N-terminal zinc finger binds pre-mRNA; relocalizes to the cytosol in response to hypoxia; Belongs to the Luc7 family. (261 aa)
SNU2323 kDa U4/U6.U5 small nuclear ribonucleoprotein component; Component of the U4/U6.U5 snRNP complex; involved in mRNA splicing via spliceosome. (194 aa)
PRP42U1 small nuclear ribonucleoprotein component PRP42; U1 snRNP protein involved in splicing; required for U1 snRNP biogenesis; contains multiple tetriatricopeptide repeats. (544 aa)
SNU5656 kDa U1 small nuclear ribonucleoprotein component; Component of U1 snRNP required for mRNA splicing via spliceosome; yeast specific, no metazoan counterpart; interacts with mRNA in commitment complex. (492 aa)
PRP28Pre-mRNA-splicing ATP-dependent RNA helicase PRP28; RNA binding protein; involved in RNA isomerization at the 5' splice site and for exchange of U6 for U1 snRNA at the 5' splice site; similar to the RNA helicases of the DEAD-box family. (588 aa)
LSM6U6 snRNA-associated Sm-like protein LSm6; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA; Belongs to the snRNP Sm proteins family. SmF/LSm6 subfamily. (86 aa)
PRP3U4/U6 small nuclear ribonucleoprotein PRP3; Splicing factor; component of the U4/U6-U5 snRNP complex. (469 aa)
SMB1Small nuclear ribonucleoprotein-associated protein B; 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'; Belongs to the snRNP SmB/SmN family. (196 aa)
LSM4U6 snRNA-associated Sm-like protein LSm4; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA; forms cytoplasmic foci upon DNA replication stress. (187 aa)
LSM5U6 snRNA-associated Sm-like protein LSm5; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA. (93 aa)
BRR2Pre-mRNA-splicing helicase BRR2; 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. (2163 aa)
SMX2Small nuclear ribonucleoprotein G; 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. (77 aa)
SAD1Pre-mRNA-splicing factor SAD1; Conserved zinc-finger domain protein involved in pre-mRNA splicing; critical for splicing of nearly all intron-containing genes; required for assembly of U4 snRNA into the U4/U6 particle. (448 aa)
IRC6Increased recombination centers protein 6; Clathrin coat accessory factor; involved in clathrin-mediated vesicle trafficking; may function to link the AP-1 clathrin adaptor complex with the Rab GTPase Ypt31p; has structural similarity to G-proteins; mouse homolog Aagab (p34) functionally complements irc6 null mutation; null mutant displays increased levels of spontaneous Rad52p foci. (237 aa)
SNU71U1 small nuclear ribonucleoprotein component SNU71; Component of U1 snRNP required for mRNA splicing via spliceosome; yeast specific, no metazoan counterpart; Belongs to the SNU71 family. (620 aa)
SMD1Small nuclear ribonucleoprotein Sm D1; 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; relocalizes to the cytosol in response to hypoxia; homolog of human Sm D1; protein abundance increases in response to DNA replication stress. (146 aa)
PRP38Pre-mRNA-splicing factor 38; Unique component of the U4/U6.U5 tri-snRNP particle; tri-snRNP is required for conformational changes which result in the catalytic activation of the spliceosome; dispensable for spliceosome assembly; Belongs to the PRP38 family. (242 aa)
PRP31Pre-mRNA-processing factor 31; Splicing factor; component of the U4/U6-U5 snRNP complex; Belongs to the PRP31 family. (494 aa)
NAM8RNA binding protein, component of the U1 snRNP protein; mutants are defective in meiotic recombination and in formation of viable spores, involved in the formation of DSBs through meiosis-specific splicing of REC107 pre-mRNA; Nam8p regulon embraces the meiotic pre-mRNAs of REC107, HFM1, AMA1 SPO22 and PCH2; the putative RNA binding domains RRM2 and RRM3 are required for Nam8p meiotic function. (523 aa)
LIN1Protein LIN1; Non-essential component of U5 snRNP; nuclear protein; physically interacts with Irr1p of cohesin complex; may link together proteins involved in chromosome segregation, mRNA splicing and DNA replication. (340 aa)
SNP1U1 small nuclear ribonucleoprotein 70 kDa homolog; Component of U1 snRNP required for mRNA splicing via spliceosome; substrate of the arginine methyltransferase Hmt1p; may interact with poly(A) polymerase to regulate polyadenylation; homolog of human U1 70K protein; protein abundance increases in response to DNA replication stress. (300 aa)
MSL1U2 small nuclear ribonucleoprotein B'; U2B component of U2 snRNP; involved in splicing, binds the U2 snRNA stem-loop IV in vitro but requires association of Lea1p for in vivo binding; does not contain the conserved C-terminal RNA binding domain found in other family members. (111 aa)
PRP21Pre-mRNA-splicing factor PRP21; Subunit of the SF3a splicing factor complex; required for spliceosome assembly. (280 aa)
LSM8U6 snRNA-associated Sm-like protein LSm8; Lsm (Like Sm) protein; forms heteroheptameric complex (with Lsm2p, Lsm3p, Lsm4p, Lsm5p, Lsm6p, and Lsm7p) that is part of spliceosomal U6 snRNP and is also implicated in processing of pre-tRNA, pre-snoRNA, and pre-rRNA. (109 aa)
PRP40Pre-mRNA-processing protein PRP40; U1 snRNP protein involved in splicing; interacts with the branchpoint-binding protein during the formation of the second commitment complex. (583 aa)
MUD2Splicing factor MUD2; 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. (527 aa)
MSL5Branchpoint-bridging protein; Component of commitment complex; which defines first step in splicing pathway; essential protein that interacts with Mud2p and Prp40p, forming a bridge between the intron ends; also involved in nuclear retention of pre-mRNA; relocalizes to the cytosol in response to hypoxia. (476 aa)
SMD3Small nuclear ribonucleoprotein Sm D3; 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. (101 aa)
SMD2Small nuclear ribonucleoprotein Sm D2; 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. (110 aa)
YHC1U1 small nuclear ribonucleoprotein C; Component of the U1 snRNP complex required for pre-mRNA splicing; putative ortholog of human U1C protein, which is involved in formation of a complex between U1 snRNP and the pre-mRNA 5' splice site; Belongs to the U1 small nuclear ribonucleoprotein C family. (231 aa)
LSM3U6 snRNA-associated Sm-like protein LSm3; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA; protein increases in abundance and relocalizes from nucleus to cytoplasmic foci upon DNA replication stress. (89 aa)
PRP39Pre-mRNA-processing factor 39; U1 snRNP protein involved in splicing; contains multiple tetriatricopeptide repeats. (629 aa)
RSE1Pre-mRNA-splicing factor RSE1; Protein involved in pre-mRNA splicing; component of the pre-spliceosome; associates with U2 snRNA; involved in ER to Golgi transport; Belongs to the RSE1 family. (1361 aa)
STO1Large 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; Belongs to the NCBP1 family. (861 aa)
CUS1Cold sensitive U2 snRNA suppressor 1; Protein required for assembly of U2 snRNP into the spliceosome; forms a complex with Hsh49p and Hsh155p. (436 aa)
PRP24U4/U6 snRNA-associated-splicing factor PRP24; Splicing factor that reanneals snRNPs during spliceosome recycling; reanneals U4 and U6 snRNPs. (444 aa)
HSH155U2-snRNP associated splicing factor; 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. (971 aa)
YSF3RDS3 complex subunit 10; Component of the SF3b subcomplex of the U2 snRNP; essential protein required for splicing and for assembly of SF3b. (85 aa)
LSM7U6 snRNA-associated Sm-like protein LSm7; Lsm (Like Sm) protein; part of heteroheptameric complexes (Lsm2p-7p and either Lsm1p or 8p): cytoplasmic Lsm1p complex involved in mRNA decay; nuclear Lsm8p complex part of U6 snRNP and possibly involved in processing tRNA, snoRNA, and rRNA; protein abundance increases and forms cytoplasmic foci in response to DNA replication stress. (115 aa)
CUS2Putative checkpoint factor in transcription; binds to U2 snRNA and Prp11p; regulates toggling of the U2 snRNA stem II region between different structures; contains two RNA recognition motifs (RRMs). (285 aa)
SME1Small nuclear ribonucleoprotein E; Core Sm protein Sm E; part of heteroheptameric complex (with Smb1p, Smd1p, Smd2p, Smd3p, Smx3p, and Smx2p) that is part of the spliceosomal U1, U2, U4, and U5 snRNPs; homolog of human Sm E. (94 aa)
SNU6666 kDa U4/U6.U5 small nuclear ribonucleoprotein component; Component of the U4/U6.U5 snRNP complex; involved in pre-mRNA splicing via spliceosome; also required for pre-5S rRNA processing and may act in concert with Rnh70p; has homology to human SART-1. (587 aa)
HSH49Protein HSH49; U2-snRNP associated splicing factor; similar 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). (213 aa)
CBC2Nuclear cap-binding protein subunit 2; Small subunit of the heterodimeric cap binding complex with Sto1p; interacts with Npl3p, possibly to package mRNA for export from the nucleus; may have a role in telomere maintenance; contains an RNA-binding motif; Belongs to the RRM NCBP2 family. (208 aa)
LEA1U2 small nuclear ribonucleoprotein A; Component of U2 snRNP complex; disruption causes reduced U2 snRNP levels; physically interacts with Msl1p; putative homolog of human U2A' snRNP protein; Belongs to the U2 small nuclear ribonucleoprotein A family. (238 aa)
DIB1Spliceosomal protein DIB1; 17-kDa component of the U4/U6aU5 tri-snRNP; plays an essential role in pre-mRNA splicing; human ortholog TXNL4A (the human U5-specific 15-kDa protein) complements yeast dib1 null mutant; Belongs to the DIM1 family. (143 aa)
RDS3Pre-mRNA-splicing factor RDS3; Component of the SF3b subcomplex of the U2 snRNP; zinc cluster protein involved in pre-mRNA splicing and cycloheximide resistance. (107 aa)
PRP4U4/U6 small nuclear ribonucleoprotein PRP4; Splicing factor; component of the U4/U6-U5 snRNP complex. (465 aa)
SMX3Small nuclear ribonucleoprotein F; 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. (86 aa)
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: ATCC 18824, Candida robusta, Mycoderma cerevisiae, NRRL Y-12632, S. cerevisiae, Saccharomyces capensis, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, yeast
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