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 a 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, RBP10 is part of the core element with the central large cleft. Arabidopsis thaliana (taxid: 3702)
>sp|Q39290|RPAB5_BRANA DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Brassica napus PE=3 SV=1
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 a 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, RBP10 is part of the core element with the central large cleft.
Brassica napus (taxid: 3708)
>sp|Q9VC49|RPAB5_DROME DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Drosophila melanogaster GN=Rpb10 PE=1 SV=1
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 a 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, RBP10 is part of the core element with the central large cleft.
Drosophila melanogaster (taxid: 7227)
>sp|P62876|RPAB5_MOUSE DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Mus musculus GN=Polr2l PE=2 SV=1
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 a 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, POLR2L/RBP10 is part of the core element with the central large cleft.
Mus musculus (taxid: 10090)
>sp|P62875|RPAB5_HUMAN DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Homo sapiens GN=POLR2L PE=1 SV=1
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 a 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, POLR2L/RBP10 is part of the core element with the central large cleft.
Homo sapiens (taxid: 9606)
>sp|Q6QN04|RPAB5_CHILA DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Chinchilla lanigera GN=POLR2L PE=3 SV=1
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 a 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, POLR2L/RBP10 is part of the core element with the central large cleft.
Chinchilla lanigera (taxid: 34839)
>sp|Q32P78|RPAB5_BOVIN DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Bos taurus GN=POLR2L PE=3 SV=1
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 a 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, POLR2L/RBP10 is part of the core element with the central large cleft.
Bos taurus (taxid: 9913)
>sp|Q9GR61|RPAB5_CAEEL DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Caenorhabditis elegans GN=rpb-10 PE=3 SV=1
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 a 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, RBP10 is part of the core element with the central large cleft.
Caenorhabditis elegans (taxid: 6239)
>sp|A8Y1E9|RPAB5_CAEBR DNA-directed RNA polymerases I, II, and III subunit RPABC5 OS=Caenorhabditis briggsae GN=rpb-10 PE=3 SV=1
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 a 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, RBP10 is part of the core element with the central large cleft.
Caenorhabditis briggsae (taxid: 6238)
>sp|Q55AB6|RPAB5_DICDI DNA-directed RNA polymerases I, II, and III subunit rpabc5 OS=Dictyostelium discoideum GN=polr2l PE=3 SV=1
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 a 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, RBP10 is part of the core element with the central large cleft.
Dictyostelium discoideum (taxid: 44689)
Close Homologs in the Non-Redundant Database Detected by BLAST
>gi|449441830|ref|XP_004138685.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5-like [Cucumis sativus] gi|449522728|ref|XP_004168378.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5-like [Cucumis sativus]
>gi|225425585|ref|XP_002263065.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5 [Vitis vinifera] gi|297739069|emb|CBI28558.3| unnamed protein product [Vitis vinifera]
>gi|356497696|ref|XP_003517695.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5 [Glycine max] gi|356502404|ref|XP_003520009.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5-like [Glycine max] gi|255631340|gb|ACU16037.1| unknown [Glycine max]
>gi|449435392|ref|XP_004135479.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5-like [Cucumis sativus] gi|449478734|ref|XP_004155405.1| PREDICTED: DNA-directed RNA polymerases I, II, and III subunit RPABC5-like [Cucumis sativus]
>PF01194 RNA_pol_N: RNA polymerases N / 8 kDa subunit; InterPro: IPR000268 In eukaryotes, there are three different forms of DNA-dependent RNA polymerases (2
7.7.6 from EC) transcribing different sets of genes. Each class of RNA polymerase is an assemblage of ten to twelve different polypeptides. In archaebacteria, there is generally a single form of RNA polymerase which also consists of an oligomeric assemblage of 10 to 13 polypeptides. Archaebacterial subunit N (gene rpoN) [] is a small protein of about 8 kDa, it is evolutionary related [] to a 8.3 kDa component shared by all three forms of eukaryotic RNA polymerases (gene RPB10 in yeast and POLR2J in mammals) as well as to African swine fever virus (ASFV) protein CP80R []. There is a conserved region which is located at the N-terminal extremity of these polymerase subunits; this region contains two cysteines that binds a zinc ion [].; GO: 0003677 DNA binding, 0003899 DNA-directed RNA polymerase activity, 0006351 transcription, DNA-dependent; PDB: 2PMZ_N 3HKZ_N 1EF4_A 3H0G_V 2Y0S_N 2R92_J 3M4O_J 3S2D_J 1R9S_J 1Y1W_J ....
7.7.6 from EC (also known as DNA-dependent RNA polymerases) are responsible for the polymerisation of ribonucleotides into a sequence complementary to the template DNA. In eukaryotes, there are three different forms of DNA-directed RNA polymerases transcribing different sets of genes. Most RNA polymerases are multimeric enzymes and are composed of a variable number of subunits. The core RNA polymerase complex consists of five subunits (two alpha, one beta, one beta-prime and one omega) and is sufficient for transcription elongation and termination but is unable to initiate transcription. Transcription initiation from promoter elements requires a sixth, dissociable subunit called a sigma factor, which reversibly associates with the core RNA polymerase complex to form a holoenzyme []. The core RNA polymerase complex forms a "crab claw"-like structure with an internal channel running along the full length []. The key functional sites of the enzyme, as defined by mutational and cross-linking analysis, are located on the inner wall of this channel. RNA synthesis follows after the attachment of RNA polymerase to a specific site, the promoter, on the template DNA strand. The RNA synthesis process continues until a termination sequence is reached. The RNA product, which is synthesised in the 5' to 3'direction, is known as the primary transcript. Eukaryotic nuclei contain three distinct types of RNA polymerases that differ in the RNA they synthesise: RNA polymerase I: located in the nucleoli, synthesises precursors of most ribosomal RNAs. RNA polymerase II: occurs in the nucleoplasm, synthesises mRNA precursors. RNA polymerase III: also occurs in the nucleoplasm, synthesises the precursors of 5S ribosomal RNA, the tRNAs, and a variety of other small nuclear and cytosolic RNAs. Eukaryotic cells are also known to contain separate mitochondrial and chloroplast RNA polymerases. Eukaryotic RNA polymerases, whose molecular masses vary in size from 500 to 700 kDa, contain two non-identical large (>100 kDa) subunits and an array of up to 12 different small (less than 50 kDa) subunits. This family consists of several Chordopoxvirus DNA-directed RNA polymerase 7 kDa polypeptide sequences. DNA-dependent RNA polymerase catalyses the transcription of DNA into RNA [].; GO: 0003677 DNA binding, 0003899 DNA-directed RNA polymerase activity, 0006351 transcription, DNA-dependent