Protein Domain : IPR006110

Type:  Family Name:  RNA polymerase, subunit omega/K/RPB6
Description:  In eukaryotes, there are three different forms of DNA-dependent RNA polymerases () 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. A component of 14 to 18 kDa shared by all three forms of eukaryotic RNA polymerases and which has been sequenced in budding yeast (gene RPB6 or RPO26), in Schizosaccharomyces pombe(Fission yeast) (gene rpb6 or rpo15), in human and in African swine fever virus(ASFV) is evolutionary related to the archaebacterial subunit K (gene rpoK). The archaebacterial protein is colinear with the C-terminal part of the eukaryotic subunit. The structures of the omega subunit and RBP6, and the structures of the omega/beta' and RPB6/RPB1 interfaces, suggest a molecular mechanism for the function of omega and RPB6 in promoting RNAP assembly and/or stability. The conserved regions of omega and RPB6 form a compact structural domain that interacts simultaneously with conserved regions of the largest RNAP subunit and with the C-terminal tail following a conserved region of the largest RNAP subunit. The second half of the conserved region of omega and RPB6 forms an arc that projects away from the remainder of the structural domain and wraps over and around the C-terminal tail of the largest RNAP subunit, clamping it in a crevice, and threading the C-terminal tail of the largest RNAP subunit through the narrow gap between omega and RPB6 []. Short Name:  Pol_omega/K/RPB6

2 Child Features

DB identifier Type Name
IPR006111 Family Archaeal RpoK/eukaryotic RPB6 RNA polymerase subunit
IPR003716 Family DNA-directed RNA polymerase, omega subunit

2 Contains

DB identifier Type Name
IPR012293 Domain RNA polymerase subunit, RPB6/omega
IPR020708 Conserved_site DNA-directed RNA polymerase, 14-18kDa subunit, conserved site

2 Cross Referencess

Identifier
PF01192
SSF63562

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0003677 IPR006110
GO:0003899 IPR006110
GO:0006351 IPR006110

3 Ontology Annotations

GO Term Gene Name
GO:0003677 IPR006110
GO:0003899 IPR006110
GO:0006351 IPR006110

0 Parent Features

584 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
111873 D8S9V8 PAC:15413582 Selaginella moellendorffii 96  
419773 D8S9Z7 PAC:15412046 Selaginella moellendorffii 523  
evm.model.supercontig_370.10 PAC:16418778 Carica papaya 142  
30147.m014300 B9R9F9 PAC:16820311 Ricinus communis 124  
Cucsa.250930.1 A0A0A0L8L8 PAC:16971721 Cucumis sativus 143  
Cucsa.250930.2 PAC:16971722 Cucumis sativus 139  
Cucsa.310250.1 A0A0A0LGM1 PAC:16976499 Cucumis sativus 142  
orange1.1g032288m A0A067F9B2 PAC:18101191 Citrus sinensis 143  
orange1.1g033231m A0A067EY87 PAC:18101192 Citrus sinensis 124  
AT5G51940.1 Q9FJ98 PAC:19672533 Arabidopsis thaliana 144  
AT2G04630.1 Q9SJ96 PAC:19639201 Arabidopsis thaliana 144  
Thhalv10027983m V4L9F0 PAC:20189523 Eutrema salsugineum 144  
Thhalv10005087m V4MMD3 PAC:20199820 Eutrema salsugineum 144  
Ciclev10006171m V4S8B3 PAC:20792445 Citrus clementina 143  
Lus10015000 PAC:23152817 Linum usitatissimum 144  
Lus10038878 PAC:23150251 Linum usitatissimum 144  
Potri.015G138800.1 B9ID35 PAC:27018555 Populus trichocarpa 143  
Potri.015G138800.2 PAC:27018556 Populus trichocarpa 135  
Potri.012G136900.1 A0A2K1YD70 PAC:27050414 Populus trichocarpa 143  
Potri.012G136900.2 PAC:27050415 Populus trichocarpa 135  
Gorai.004G121300.1 A0A0D2P449 PAC:26777289 Gossypium raimondii 144  
Gorai.007G010600.1 A0A0D2QJE0 PAC:26782021 Gossypium raimondii 144  
Gorai.007G010600.2 A0A0D2S4Y1 PAC:26782022 Gossypium raimondii 112  
53409 I0YZ00 PAC:27386847 Coccomyxa subellipsoidea C-169 133  
18346 C1MWD5 PAC:27341152 Micromonas pusilla CCMP1545 84  
61090 C1EBJ1 PAC:27401640 Micromonas sp RCC299 138  
8797 A4RSJ5 PAC:27415041 Ostreococcus lucimarinus 81  
Thecc1EG015104t1 A0A061G0M3 PAC:27448829 Theobroma cacao 143  
Thecc1EG015104t2 A0A061G1N0 PAC:27448831 Theobroma cacao 138  
Thecc1EG015104t4 A0A061G7T8 PAC:27448832 Theobroma cacao 96  

1 Publications

First Author Title Year Journal Volume Pages PubMed ID
            11158566