The structure and function of an RNA polymerase interaction domain in the PcrA/UvrD helicase Kelly Sanders, Chia Liang Lin, Abigail J. Smith , Nora Cronin, Gemma Fisher, Vasileios Eftychidis, Peter McGlynn, Nigel J. Savery , Dale B. Wigley, Mark S. Dillingham *

Aug 13, 2019 Escherichia coli UvrD is a superfamily 1 helicase/translocase that functions in DNA repair, replication, and recombination. Although a UvrD

Below, we review the functions of UvrD, Rep and PcrA and their potential roles in conflict avoidance. Accessory helicases in E. coli. It has putative helicase carrying an UvrD-like helicase C-terminal domain, and two contiguous putative serine/threonine protein kinases (Fig. 6).

Structures of UvrD-like SF1 helicase solved so far share a four-subdomain tertiary arrangement (1A/2A/1B/2B) (Singleton et al., 2007), including two RecA-like domains (1A/2A) which contain the ATP binding site and are proposed to function as the translocase (Dillingham et al., 2001; Lee and Yang, 2006), and a flexible domain (2B) which is believed to play a regulatory role in helicase activity #=GF ID UvrD-helicase #=GF AC PF00580.22 #=GF DE UvrD/REP helicase N-terminal domain #=GF AU Bateman A;0000-0002-6982-4660 #=GF SE MRC-LMB Genome group. #=GF GA 23.00 23.00; #=GF TC 23.00 23.00; #=GF NC 22.90 22.90; #=GF BM hmmbuild HMM.ann SEED.ann #=GF SM hmmsearch -Z 47079205 -E 1000 --cpu 4 HMM pfamseq #=GF TP Domain #=GF RC Structure of Swiss:P09980 #=GF RN [1] #=GF RM 9288744 #=GF RT Major domain swiveling revealed by the crystal structures of #=GF RT complexes of E. coli Rep helicase 2009-04-03 · The stimulation is specific for UvrD, as UvrAB failed to stimulate Rep helicase, a UvrD homologue. Moreover, although UvrAB can promote limited strand displacement, stimulation of UvrD did not require the strand displacement function of UvrAB. We conclude that UvrAB, like MutL, modulate UvrD helicase activity. Escherichia coli UvrD is a superfamily 1 DNA helicase and single-stranded DNA (ssDNA) translocase that functions in DNA repair and plasmid replication and as an anti-recombinase by removing RecA protein from ssDNA.

Separation of the UvrD helicase and translocase activities is possible in vitro.

Oct 18, 2017 Escherichia coli UvrD (EcUvrD) helicase plays a crucial role in nucleotide excision repair, mismatch repair and in the regulation of homologous

IPR014017: UvrD-like DNA helicase, C-terminal 289 566 25.557 Pfam PF00580 UvrD/REP helicase N-terminal domain IPR034739: UvrD/AddA helicase, N-terminal 12 273 6.4E-74 Gene3D G3DSA:1.10.486.10 384 Escherichia coli UvrD is a superfamily 1 helicase/translocase that functions in DNA repair, replication, and recombination. Although a UvrD monomer can translocate along single-stranded DNA, self Has both ATPase and helicase activities.

The PcrA/UvrD helicase functions in multiple pathways that promote bacterial genome stability including the suppression of conflicts between replication and transcription and facilitating the repair of transcribed DNA.

Adding recF mutations almost completely suppresses AZT and partially suppresses UV and CFX sensitivity, suggesting RadA processes a class of intermediates that accumulate in uvrD mutants (PubMed: 25484163 ).

UvrD is an abundant helicase in Escherichia coli with well characterized functions in mismatch and nucleotide excision repair and a possible role in displacement of proteins such as RecA from UvrD exhibits modest processivity as a DNA helicase (40–50 bp) (53– 55) making this protein an interesting choice for the helicase responsible for the unwinding event in MMR. UvrD is also the helicase responsible for the unwinding event associated with excision repair ( 56 – 59 ), which requires unwinding of a short 12–13 base long oligonucleotide well within the limits of the The closed conformation activates the helicase, but it can also generate super-helicases capable of unzipping long stretches of DNA at high speed and with considerable force. Comstock et al. used optical tweezers and fluorescence microscopy to simultaneously measure the structure and function of the bacterial helicase UvrD. Structures of UvrD-like SF1 helicase solved so far share a four-subdomain tertiary arrangement (1A/2A/1B/2B) (Singleton et al., 2007), including two RecA-like domains (1A/2A) which contain the ATP binding site and are proposed to function as the translocase (Dillingham et al., 2001; Lee and Yang, 2006), and a flexible domain (2B) which is believed to play a regulatory role in helicase activity #=GF ID UvrD-helicase #=GF AC PF00580.22 #=GF DE UvrD/REP helicase N-terminal domain #=GF AU Bateman A;0000-0002-6982-4660 #=GF SE MRC-LMB Genome group. #=GF GA 23.00 23.00; #=GF TC 23.00 23.00; #=GF NC 22.90 22.90; #=GF BM hmmbuild HMM.ann SEED.ann #=GF SM hmmsearch -Z 47079205 -E 1000 --cpu 4 HMM pfamseq #=GF TP Domain #=GF RC Structure of Swiss:P09980 #=GF RN [1] #=GF RM 9288744 #=GF RT Major domain swiveling revealed by the crystal structures of #=GF RT complexes of E. coli Rep helicase 2009-04-03 · The stimulation is specific for UvrD, as UvrAB failed to stimulate Rep helicase, a UvrD homologue.
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The PcrA/UvrD helicase functions in multiple pathways that promote bacterial genome stability including the suppression of conflicts Apr 17, 2018 An exemplary Escherichia coli helicase, UvrD, belonging to SF1, has many cellular roles such as methyl-directed mismatch repair (Iyer et al., This stimulation likely plays a role in DNA strand and protein displacement by UvrD in nucleotide excision repair. Promotion of UvrD-catalyzed unwinding of nicked UvrD is a DNA-dependent ATPase and helicase that belongs to the helicase SF1 superfamily and catalyzes the unwinding of duplex DNA in a 3' to 5' direction.[1] To define further the role of UvrD in DNA repair a site-specific mutant was characterized. The mutation, uvrDQ251E, resides within helicase motif III, a conserved Tte UvrD Helicase is a repair helicase capable of unwinding double-stranded DNA, without a requirement for a specific flap or overhang structure, from the The DNA helicase UvrD (helicase II) protein plays an important role in nucleotide excision repair, mismatch repair, rolling circular plasmid replication, The Rep family helicases are composed of four structural domains.

UvrD, but not Rep, plays a role of RecA nucleoprotein filament remover in E. coli. The UvrD helicase proves therefore to play a new role, unrelated to DNA melting, in vivo. John Atkinson, Colin P. Guy, Chris J. Cadman, Geri F. Moolenaar, Nora Goosen, Peter McGlynn #=GF ID UvrD-helicase #=GF AC PF00580.22 #=GF DE UvrD/REP helicase N-terminal domain #=GF AU Bateman A;0000-0002-6982-4660 #=GF SE MRC-LMB Genome group.
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#=GF ID UvrD-helicase #=GF AC PF00580.22 #=GF DE UvrD/REP helicase N-terminal domain #=GF AU Bateman A;0000-0002-6982-4660 #=GF SE MRC-LMB Genome group. #=GF GA 23.00 23.00; #=GF TC 23.00 23.00; #=GF NC 22.90 22.90; #=GF BM hmmbuild HMM.ann SEED.ann #=GF SM hmmsearch -Z 47079205 -E 1000 --cpu 4 HMM pfamseq #=GF TP Domain #=GF RC Structure of Swiss:P09980 #=GF RN [1] #=GF RM 9288744 #=GF RT Major domain swiveling revealed by the crystal structures of #=GF RT complexes of E. coli Rep helicase

Coronavirus: Find the latest articles and preprints Sign in or create an account Escherichia coli UvrD is a superfamily 1 DNA helicase and single-stranded DNA (ssDNA) translocase that functions in DNA repair and plasmid replication and as an anti-recombinase by removing RecA protein from ssDNA. UvrD couples ATP binding and hydrolysis to unwind double-stranded DNA and translocate … The structure and function of an RNA polymerase interaction domain in the PcrA/UvrD helicase: Authors: Sanders, K Lin, C-L Smith, AJ Cronin, N Fisher, G Eftychidis, V McGlynn, P Savery, NJ Wigley, DB Dillingham, MS: Item Type: Journal Article: Abstract: PDF | Nucleotide excision repair (NER) is a general DNA repair mechanism that is capable of removing a wide variety of DNA lesions induced by physical | Find, read and cite all the research you 2009-04-03 · UvrD is an abundant helicase in Escherichia coli with well characterized functions in mismatch and nucleotide excision repair and a possible role in displacement of proteins such as RecA from single-stranded DNA. The mismatch repair protein MutL is known to stimulate UvrD. UvrD, a ubiquitous bacterial helicase that plays important roles in multiple DNA metabolic pathways, is essential for genome stability and might, therefore, be crucial in bacterial physiology and pathogenesis. In this study, the functional characterization of UvrD helicase from Haemophilus influenzae and Helicobacter pylori is reported.

Request PDF | Resolving Holliday Junctions with Escherichia coli UvrD Helicase | The Escherichia coli UvrD helicase is known to function in the mismatch repair and nucleotide excision repair

The PcrA/UvrD helicase functions in multiple path-ways that promote bacterial genome stability includ-ing the suppression of conﬂicts between replication and transcription and facilitating the repair of tran-scribed DNA. The reported ability of PcrA/UvrD to bind and backtrack RNA polymerase (1,2) might be Escherichia coli UvrD DNA helicase functions in several DNA repair processes. As a monomer, UvrD can translocate rapidly and proc-essively along ssDNA; however, the monomer is a poor helicase. To unwind duplex DNA in vitro, UvrD needs to be activated either by self-assembly to form a dimer or by interaction with an acces-sory protein. UvrD, a member of the helicase SF1 superfamily, plays an essential role in bacterial NER by unwinding the duplex DNA in the 3' to 5' direction to displace the lesion-containing strand.

To test whether the helicase function of UvrD is required for replication fork reversal, we used a previously characterized mutation in the helicase motif IV of the chromosomal uvrD gene (R284A).