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 seems to lock the clamp via RPB7 in the closed conformation thus preventing double stranded DNA to enter the active site cleft. The RPB4-RPB7 subcomplex binds single-stranded DNA and RNA. Mus musculus (taxid: 10090)
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 seems to lock the clamp via RPB7 in the closed conformation thus preventing double stranded DNA to enter the active site cleft. The RPB4-RPB7 subcomplex binds single-stranded DNA and RNA.
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 seems to lock the clamp via RPB7 in the closed conformation thus preventing double stranded DNA to enter the active site cleft. The RPB4-RPB7 subcomplex binds single-stranded DNA and RNA.
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Associates with POLR2G.
Drosophila melanogaster (taxid: 7227)
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Close Homologs in the Non-Redundant Database Detected by BLAST
>gi|224083811|ref|XP_002307132.1| predicted protein [Populus trichocarpa] gi|224096326|ref|XP_002310604.1| predicted protein [Populus trichocarpa] gi|222853507|gb|EEE91054.1| predicted protein [Populus trichocarpa] gi|222856581|gb|EEE94128.1| predicted protein [Populus trichocarpa]
This family includes the Rpb4 protein. This family also includes C17 (aka CGRP-RCP) is an essential subunit of RNA polymerase III. C17 forms a subcomplex with C25 which is likely to be the counterpart of subcomplex Rpb4/7 in Pol II. Length = 110
>gnl|CDD|227575 COG5250, RPB4, RNA polymerase II, fourth largest subunit [Transcription]
>PF03874 RNA_pol_Rpb4: RNA polymerase Rpb4; InterPro: IPR005574 The eukaryotic RNA polymerase subunits RPB4 and RPB7 form a heterodimer that reversibly associates with the RNA polymerase II core
Archaeal cells contain a single RNAP made up of about 12 subunits, displaying considerable homology to the eukaryotic RNAPII subunits. The RPB4 and RPB7 homologs are called subunits F and E, respectively, and have been shown to form a stable heterodimer. While the RPB7 homologue is reasonably well conserved, the similarity between the eukaryotic RPB4 and the archaeal F subunit is barely detectable [].; GO: 0003899 DNA-directed RNA polymerase activity, 0006351 transcription, DNA-dependent; PDB: 3AYH_A 3H3V_E 4A3C_D 3PO3_D 3HOX_D 2R92_D 3HOU_D 1Y77_D 2R7Z_D 3QT1_D ....
>COG1460 Uncharacterized protein conserved in archaea [Function unknown]