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POLR2I POLR2I POLR2C POLR2C SNRPB2 SNRPB2 SRSF6 SRSF6 SF3A2 SF3A2 PQBP1 PQBP1 SRSF9 SRSF9 HNRNPL HNRNPL CSTF1 CSTF1 PHF5A PHF5A PABPN1 PABPN1 POLR2E POLR2E NHP2L1 NHP2L1 CD2BP2 CD2BP2 SNRPA SNRPA SF3B14 SF3B14 SNRPD3 SNRPD3 CPSF3 CPSF3 TXNL4A TXNL4A PRPF6 PRPF6 PRPF4 PRPF4 LSM7 LSM7 PRPF3 PRPF3 LSM6 LSM6 LSM4 LSM4 USP39 USP39
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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small nodes:
protein of unknown 3D structure
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large nodes:
some 3D structure is known or predicted
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query proteins and first shell of interactors
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white nodes:
second shell of interactors
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experimentally determined
Predicted Interactions
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POLR2Epolymerase (RNA) II (DNA directed) polypeptide E, 25kDa; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Common component of RNA polymerases I, II and III which synthesize ribosomal RNA precursors, mRNA precursors and many functional non-coding RNAs, and small RNAs, such as 5S rRNA and tRNAs, respectively. Pol II is the central component of the basal RNA polymerase II transcription machinery. Pols are composed of mobile elements that move relative to each other. In Pol II, POLR2E/RPB5 is part of the low [...] (210 aa)
SNRPD3small nuclear ribonucleoprotein D3 polypeptide 18kDa; Appears to function in the U7 snRNP complex that is involved in histone 3’-end processing. Binds to the downstream cleavage product (DCP) of histone pre-mRNA in a U7 snRNP dependent manner (126 aa)
NHP2L1NHP2 non-histone chromosome protein 2-like 1 (S. cerevisiae); Binds to the 5’-stem-loop of U4 snRNA and may play a role in the late stage of spliceosome assembly. The protein undergoes a conformational change upon RNA-binding (128 aa)
PHF5APHD finger protein 5A; Acts as a transcriptional regulator by binding to the GJA1/Cx43 promoter and enhancing its up-regulation by ESR1/ER- alpha. Also involved in pre-mRNA splicing (110 aa)
PABPN1poly(A) binding protein, nuclear 1; Involved in the 3’-end formation of mRNA precursors (pre-mRNA) by the addition of a poly(A) tail of 200-250 nt to the upstream cleavage product. Stimulates poly(A) polymerase (PAPOLA) conferring processivity on the poly(A) tail elongation reaction and controls also the poly(A) tail length. Increases the affinity of poly(A) polymerase for RNA. Is also present at various stages of mRNA metabolism including nucleocytoplasmic trafficking and nonsense-mediated decay (NMD) of mRNA. Cooperates with SKIP to synergistically activate E-box-mediated transcripti [...] (306 aa)
CSTF1cleavage stimulation factor, 3’ pre-RNA, subunit 1, 50kDa; One of the multiple factors required for polyadenylation and 3’-end cleavage of mammalian pre-mRNAs. May be responsible for the interaction of CSTF with other factors to form a stable complex on the pre-mRNA (431 aa)
PQBP1polyglutamine binding protein 1 (265 aa)
POLR2Cpolymerase (RNA) II (DNA directed) polypeptide C, 33kDa; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB3 is part of the core element with the central large cleft and the clamp element that moves to open and close the cleft (By similarity) (275 aa)
HNRNPLheterogeneous nuclear ribonucleoprotein L; This protein is a component of the heterogeneous nuclear ribonucleoprotein (hnRNP) complexes which provide the substrate for the processing events that pre-mRNAs undergo before becoming functional, translatable mRNAs in the cytoplasm. Is associated with most nascent transcripts including those of the landmark giant loops of amphibian lampbrush chromosomes. Associates, together with APEX1, to the negative calcium responsive element (nCaRE) B2 of the APEX2 promoter (589 aa)
SF3A2splicing factor 3a, subunit 2, 66kDa; Subunit of the splicing factor SF3A 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 (464 aa)
POLR2Ipolymerase (RNA) II (DNA directed) polypeptide I, 14.5kDa; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB9 is part of the upper jaw surrounding the central large cleft and thought to grab the incoming DNA template (By similarity) (125 aa)
SRSF9serine/arginine-rich splicing factor 9; Plays a role in constitutive splicing and can modulate the selection of alternative splice sites. Represses the splicing of MAPT/Tau exon 10 (221 aa)
SF3B14Pre-mRNA branch site protein p14 ; Necessary for the splicing of pre-mRNA. Directly contacts the pre-mRNA branch site adenosine for the first catalytic step of splicing. Enters the spliceosome and associates with the pre-mRNA branch site as part of the 17S U2 or, in the case of the minor spliceosome, as part of the 18S U11/U12 snRNP complex, and thus may facilitate the interaction of these snRNP with the branch sites of U2 and U12 respectively (125 aa)
CPSF3cleavage and polyadenylation specific factor 3, 73kDa; Component of the cleavage and polyadenylation specificity factor (CPSF) complex that play a key role in pre-mRNA 3’-end formation, recognizing the AAUAAA signal sequence and interacting with poly(A) polymerase and other factors to bring about cleavage and poly(A) addition. Has endonuclease activity, and functions as mRNA 3’-end-processing endonuclease. Also involved in the histone 3’-end pre-mRNA processing. U7 snRNP- dependent protein that induces both the 3’-endoribonucleolytic cleavage of histone pre-mRNAs and acts as a 5’ to 3’ [...] (684 aa)
SNRPAsmall nuclear ribonucleoprotein polypeptide A; Binds stem loop II of U1 snRNA. It is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP. In a snRNP-free form (SF-A) may be involved in coupled pre-mRNA splicing and polyadenylation process. Binds preferentially to the 5’-UGCAC-3’ motif in vitro (282 aa)
SRSF6serine/arginine-rich splicing factor 6; Plays a role in constitutive splicing and can modulate the selection of alternative splice sites. Represses the splicing of MAPT/Tau exon 10 (344 aa)
SNRPB2small nuclear ribonucleoprotein polypeptide B; Involved in pre-mRNA splicing. This protein is associated with snRNP U2. It binds stem loop IV of U2 snRNA only in presence of the U2A’ protein (225 aa)
LSM7LSM7 homolog, U6 small nuclear RNA associated (S. cerevisiae); Binds specifically to the 3’-terminal U-tract of U6 snRNA and is probably a component of the spliceosome (103 aa)
PRPF6PRP6 pre-mRNA processing factor 6 homolog (S. cerevisiae) (941 aa)
TXNL4Athioredoxin-like 4A; Essential role in pre-mRNA splicing as component of the U5 snRNP and U4/U6-U5 tri-snRNP complexes that are involved in spliceosome assembly (142 aa)
LSM6LSM6 homolog, U6 small nuclear RNA associated (S. cerevisiae); Component of LSm protein complexes, which are involved in RNA processing and may function in a chaperone-like manner, facilitating the efficient association of RNA processing factors with their substrates. Component of the cytoplasmic LSM1-LSM7 complex, which is thought to be involved in mRNA degradation by activating the decapping step in the 5’-to-3’ mRNA decay pathway. Component of the nuclear LSM2-LSM8 complex, which is involved in splicing of nuclear mRNAs. LSM2-LSM8 associates with multiple snRNP complexes containing [...] (80 aa)
CD2BP2CD2 (cytoplasmic tail) binding protein 2; Involved in pre-mRNA splicing as component of the U5 snRNP complex that is involved in spliceosome assembly (341 aa)
USP39ubiquitin specific peptidase 39 (565 aa)
PRPF3PRP3 pre-mRNA processing factor 3 homolog (S. cerevisiae) (683 aa)
PRPF4PRP4 pre-mRNA processing factor 4 homolog (yeast); Participates in pre-mRNA splicing. Part of the U4/U5/U6 tri-snRNP complex, one of the building blocks of the spliceosome (522 aa)
LSM4LSM4 homolog, U6 small nuclear RNA associated (S. cerevisiae); Binds specifically to the 3’-terminal U-tract of U6 snRNA (139 aa)
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo, Homo sapiens, human, man
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