ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

La-related protein 7; Negative transcriptional regulator of polymerase II genes, acting by means of the 7SK RNP system. Within the 7SK RNP complex, the positive transcription elongation factor b (P-TEFb) is sequestered in an inactive form, preventing RNA polymerase II phosphorylation and subsequent transcriptional elongation; La ribonucleoprotein domain containing

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

Protein lin-28 homolog A; RNA-binding protein that inhibits processing of pre-let- 7 miRNAs and regulates translation of mRNAs that control developmental timing, pluripotency and metabolism. Seems to recognize a common structural G- quartet (G4) feature in its miRNA and mRNA targets (Probable). ’Translational enhancer’ that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. B [...]

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

U4/U6 small nuclear ribonucleoprotein Prp3; Participates in pre-mRNA splicing. Part of the U4/U5/U6 tri-snRNP complex, one of the building blocks of the spliceosome; U4/U6 small nucleolar ribonucleoprotein

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

Small nuclear ribonucleoprotein-associated proteins B and B; Core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Thereby, plays an important role in the splicing of cellular pre-mRNAs. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP. As part of the U7 snRNP it is involved in histone 3’-end processing

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

U2 small nuclear ribonucleoprotein 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; RNA binding motif containing

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

Small nuclear ribonucleoprotein F; Core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Thereby, plays an important role in the splicing of cellular pre-mRNAs. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP. As part of the U7 snRNP it is involved in histone 3’-end processing

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

Small nuclear ribonucleoprotein G; Core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Thereby, plays an important role in the splicing of cellular pre-mRNAs. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP. Appears to function in the U7 snRNP complex that is involved in histone 3’-end processing

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

Regulator of nonsense transcripts 1; RNA-dependent helicase and ATPase required for nonsense- mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited to mRNAs upon translation termination and undergoes a cycle of phosphorylation and dephosphorylation; its phosphorylation appears to be a key step in NMD. Recruited by release factors to stalled ribosomes together with the SMG1C protein kinase complex to form the transient SURF (SMG1-UPF1-eRF1- eRF3) complex. In EJC-dependent NMD, the SURF complex associates with the exon junction complex (EJC) (located 50-55 or more [...]

ATP-dependent RNA helicase DHX8; Facilitates nuclear export of spliced mRNA by releasing the RNA from the spliceosome; Belongs to the DEAD box helicase family. DEAH subfamily. DDX8/PRP22 sub-subfamily

5’-3’ exoribonuclease 2; Possesses 5’->3’ exoribonuclease activity (By similarity). May promote the termination of transcription by RNA polymerase II. During transcription termination, cleavage at the polyadenylation site liberates a 5’ fragment which is subsequently processed to form the mature mRNA and a 3’ fragment which remains attached to the elongating polymerase. The processive degradation of this 3’ fragment by this protein may promote termination of transcription. Binds to RNA polymerase II (RNAp II) transcription termination R-loops formed by G-rich pause sites

Histone-lysine N-methyltransferase, H3 lysine-79 specific; Histone methyltransferase. Methylates ’Lys-79’ of histone H3. Nucleosomes are preferred as substrate compared to free histones. Binds to DNA; Lysine methyltransferases

Protein lin-28 homolog A; RNA-binding protein that inhibits processing of pre-let- 7 miRNAs and regulates translation of mRNAs that control developmental timing, pluripotency and metabolism. Seems to recognize a common structural G- quartet (G4) feature in its miRNA and mRNA targets (Probable). ’Translational enhancer’ that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. B [...]

Histone-lysine N-methyltransferase, H3 lysine-79 specific; Histone methyltransferase. Methylates ’Lys-79’ of histone H3. Nucleosomes are preferred as substrate compared to free histones. Binds to DNA; Lysine methyltransferases

Protein arginine N-methyltransferase 3; Methylates (mono and asymmetric dimethylation) the guanidino nitrogens of arginyl residues in some proteins; Protein arginine methyltransferases

Histone-lysine N-methyltransferase, H3 lysine-79 specific; Histone methyltransferase. Methylates ’Lys-79’ of histone H3. Nucleosomes are preferred as substrate compared to free histones. Binds to DNA; Lysine methyltransferases

Protein arginine N-methyltransferase 6; Arginine methyltransferase that can catalyze the formation of both omega-N monomethylarginine (MMA) and asymmetrical dimethylarginine (aDMA), with a strong preference for the formation of aDMA. Preferentially methylates arginyl residues present in a glycine and arginine-rich domain and displays preference for monomethylated substrates. Specifically mediates the asymmetric dimethylation of histone H3 ’Arg-2’ to form H3R2me2a. H3R2me2a represents a specific tag for epigenetic transcriptional repression and is mutually exclusive with methylation on [...]

Probable rRNA-processing protein EBP2; Required for the processing of the 27S pre-rRNA; Belongs to the EBP2 family

Protein lin-28 homolog A; RNA-binding protein that inhibits processing of pre-let- 7 miRNAs and regulates translation of mRNAs that control developmental timing, pluripotency and metabolism. Seems to recognize a common structural G- quartet (G4) feature in its miRNA and mRNA targets (Probable). ’Translational enhancer’ that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. B [...]

Probable rRNA-processing protein EBP2; Required for the processing of the 27S pre-rRNA; Belongs to the EBP2 family

Ribonucleases P/MRP protein subunit POP1; Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5’-ends. Also a component of RNase MRP

Probable rRNA-processing protein EBP2; Required for the processing of the 27S pre-rRNA; Belongs to the EBP2 family

Protein arginine N-methyltransferase 3; Methylates (mono and asymmetric dimethylation) the guanidino nitrogens of arginyl residues in some proteins; Protein arginine methyltransferases

Probable rRNA-processing protein EBP2; Required for the processing of the 27S pre-rRNA; Belongs to the EBP2 family

Protein arginine N-methyltransferase 6; Arginine methyltransferase that can catalyze the formation of both omega-N monomethylarginine (MMA) and asymmetrical dimethylarginine (aDMA), with a strong preference for the formation of aDMA. Preferentially methylates arginyl residues present in a glycine and arginine-rich domain and displays preference for monomethylated substrates. Specifically mediates the asymmetric dimethylation of histone H3 ’Arg-2’ to form H3R2me2a. H3R2me2a represents a specific tag for epigenetic transcriptional repression and is mutually exclusive with methylation on [...]

Probable rRNA-processing protein EBP2; Required for the processing of the 27S pre-rRNA; Belongs to the EBP2 family

RNA-binding protein 34; RNA binding motif containing; Belongs to the RRM RBM34 family

Eukaryotic translation initiation factor 3 subunit I; Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF-2-GTP-methionyl-tRNAi and eIF-5 to form the 43S pre- initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribos [...]

Small nuclear ribonucleoprotein F; Core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Thereby, plays an important role in the splicing of cellular pre-mRNAs. Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP. As part of the U7 snRNP it is involved in histone 3’-end processing

Eukaryotic translation initiation factor 3 subunit I; Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF-2-GTP-methionyl-tRNAi and eIF-5 to form the 43S pre- initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribos [...]

Regulator of nonsense transcripts 1; RNA-dependent helicase and ATPase required for nonsense- mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited to mRNAs upon translation termination and undergoes a cycle of phosphorylation and dephosphorylation; its phosphorylation appears to be a key step in NMD. Recruited by release factors to stalled ribosomes together with the SMG1C protein kinase complex to form the transient SURF (SMG1-UPF1-eRF1- eRF3) complex. In EJC-dependent NMD, the SURF complex associates with the exon junction complex (EJC) (located 50-55 or more [...]

Histone H1.0; Histones H1 are necessary for the condensation of nucleosome chains into higher-order structures. The H1F0 histones are found in cells that are in terminal stages of differentiation or that have low rates of cell division

Protein lin-28 homolog A; RNA-binding protein that inhibits processing of pre-let- 7 miRNAs and regulates translation of mRNAs that control developmental timing, pluripotency and metabolism. Seems to recognize a common structural G- quartet (G4) feature in its miRNA and mRNA targets (Probable). ’Translational enhancer’ that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. B [...]