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SNRPD3 | small 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) | |||
GNPNAT1 | glucosamine-phosphate N-acetyltransferase 1 (184 aa) | |||
SART3 | squamous cell carcinoma antigen recognized by T cells 3; Regulates Tat transactivation activity through direct interaction. May be a cellular factor for HIV-1 gene expression and viral replication (963 aa) | |||
LSM7 | LSM7 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) | |||
DDX6 | DEAD (Asp-Glu-Ala-Asp) box helicase 6; In the process of mRNA degradation, may play a role in mRNA decapping (483 aa) | |||
XRN1 | 5’-3’ exoribonuclease 1; Major 5’-3’ exoribonuclease involved in mRNA decay. Required for the 5’-3’-processing of the G4 tetraplex-containing DNA and RNA substrates. The kinetic of hydrolysis is faster for G4 RNA tetraplex than for G4 DNA tetraplex and monomeric RNA tetraplex. Binds to RNA and DNA (By similarity). Plays a role in replication-dependent histone mRNA degradation. May act as a tumor suppressor protein in osteogenic sarcoma (OGS) (1706 aa) | |||
PRPF6 | PRP6 pre-mRNA processing factor 6 homolog (S. cerevisiae) (941 aa) | |||
TXNL4B | thioredoxin-like 4B; Essential role in pre-mRNA splicing. Required in cell cycle progression for S/G(2) transition (149 aa) | |||
TXNL4A | thioredoxin-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) | |||
POLR2D | polymerase (RNA) II (DNA directed) polypeptide D; 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. RPB4 is part of a subcomplex with RPB7 that binds to a pocket formed by RPB1, RPB2 and RPB6 at the base of the clamp element. The RBP4-RPB7 subcomplex s [...] (142 aa) | |||
DCP1B | DCP1 decapping enzyme homolog B (S. cerevisiae); May play a role in the degradation of mRNAs, both in normal mRNA turnover and in nonsense-mediated mRNA decay. May remove the 7-methyl guanine cap structure from mRNA molecules, yielding a 5’-phosphorylated mRNA fragment and 7m-GDP (By similarity) (617 aa) | |||
LSM6 | LSM6 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) | |||
PATL1 | protein associated with topoisomerase II homolog 1 (yeast); RNA-binding protein involved in deadenylation-dependent decapping of mRNAs, leading to the degradation of mRNAs. Acts as a scaffold protein that connects deadenylation and decapping machinery. Required for cytoplasmic mRNA processing body (P-body) assembly. In case of infection, required for translation and replication of hepatitis C virus (HCV) (770 aa) | |||
SNRPD1 | small nuclear ribonucleoprotein D1 polypeptide 16kDa; May act as a charged protein scaffold to promote snRNP assembly or strengthen snRNP-snRNP interactions through nonspecific electrostatic contacts with RNA (119 aa) | |||
POLR2G | polymerase (RNA) II (DNA directed) polypeptide G; 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. RPB7 is part of a subcomplex with RPB4 that binds to a pocket formed by RPB1, RPB2 and RPB6 at the base of the clamp element. The RBP4-RPB7 subcomplex s [...] (172 aa) | |||
LSM3 | LSM3 homolog, U6 small nuclear RNA associated (S. cerevisiae); Binds specifically to the 3’-terminal U-tract of U6 snRNA (102 aa) | |||
PRPF8 | PRP8 pre-mRNA processing factor 8 homolog (S. cerevisiae); Functions as a scaffold that mediates the ordered assembly of spliceosomal proteins and snRNAs. Required for the assembly of the U4/U6-U5 tri-snRNP complex. Functions as scaffold that positions spliceosomal U2, U5 and U6 snRNAs at splice sites on pre-mRNA substrates, so that splicing can occur. Interacts with both the 5’ and the 3’ splice site (2335 aa) | |||
SART1 | squamous cell carcinoma antigen recognized by T cells; Plays a role in mRNA splicing as a component of the U4/U6-U5 tri-snRNP, one of the building blocks of the spliceosome. May also bind to DNA (800 aa) | |||
LSM1 | LSM1 homolog, U6 small nuclear RNA associated (S. cerevisiae); Plays a role in replication-dependent histone mRNA degradation. Binds specifically to the 3’-terminal U-tract of U6 snRNA (133 aa) | |||
LSM10 | LSM10, U7 small nuclear RNA associated; Appears to function in the U7 snRNP complex that is involved in histone 3’-end processing. Increases U7 snRNA levels but not histone 3’-end pre-mRNA processing activity, when overexpressed. Required for cell cycle progression from G1 to S phases. Binds specifically to U7 snRNA. Binds to the downstream cleavage product (DCP) of histone pre-mRNA in a U7 snRNP dependent manner (123 aa) | |||
SNRPD2 | small nuclear ribonucleoprotein D2 polypeptide 16.5kDa; Required for pre-mRNA splicing. Required for snRNP biogenesis (By similarity) (118 aa) | |||
EDC4 | enhancer of mRNA decapping 4; In the process of mRNA degradation, seems to play a role in mRNA decapping. Component of a complex containing DCP2 and DCP1A which functions in decapping of ARE-containing mRNAs. Promotes complex formation between DCP1A and DCP2. Enhances the catalytic activity of DCP2 (in vitro) (1401 aa) | |||
PRPF4 | PRP4 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) | |||
DCP2 | DCP2 decapping enzyme homolog (S. cerevisiae); Decapping metalloenzyme that catalyzes the cleavage of the cap structure on mRNAs. Removes the 7-methyl guanine cap structure from mRNA molecules, yielding a 5’-phosphorylated mRNA fragment and 7m-GDP. Necessary for the degradation of mRNAs, both in normal mRNA turnover and in nonsense-mediated mRNA decay. Plays a role in replication-dependent histone mRNA degradation. Has higher activity towards mRNAs that lack a poly(A) tail. Has no activity towards a cap structure lacking a RNA moiety (420 aa) | |||
LSM5 | LSM5 homolog, U6 small nuclear RNA associated (S. cerevisiae); Plays a role in U6 snRNP assembly and function. Binds to the 3’ end of U6 snRNA, thereby facilitating formation of the spliceosomal U4/U6 duplex formation in vitro (91 aa) | |||
LSM4 | LSM4 homolog, U6 small nuclear RNA associated (S. cerevisiae); Binds specifically to the 3’-terminal U-tract of U6 snRNA (139 aa) |