Bacterial virus anti-defence systems · sequence & structure resource

Encyclopaedia of Bacterial Virus Anti-Defence Systems


Protein: DarB

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Overview

Mode of Action (MoA) contains a methyltransferase domain, likely modifying phage.
Evidence Genetic deletions (deletion mutation phenotypic evidence, ECO_0001038) result in high sensitivity to RM systems, while ectopic expression (ECO_0000017) restores plating efficiency.
MoA Category modifies phage molecules to avoid recognition
Subtype(s) of the defence system(s) inhibited by the protein Defence Subtype Escherichia coli type I RM
Relevant publication(s) DOI 10.1016/0042-6822(87)90324-2, 10.1111/mmi.13705
Other components of the anti-defence system Multicomponent System dara; hdf; ddrb; ddra; ulx
Known structure in PDB PDB ID -
Genome(s) encoding the protein Protein Source Enterobacteria phage P1
Defence system(s) inhibited by the protein Defences RM
View homologs from eukaryotic dsDNA viruses

3D structure

AlphaFold 3 model.

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Feature viewer - predicted secondary structure

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Pfam annotations

Pfam Name Pfam Acc Pfam Length Colour HMM Start HMM End Ali Start Ali End Env Start Env End Evalue
Eco57I PF07669 171 69 156 166 244 127 251 2.3e-09
Helicase_C PF00271 110 49 110 1455 1517 1434 1517 3.6e-08
N6_Mtase PF02384 311 93 248 145 290 66 296 1.5e-09

Sequence Viewer

Amino acid position: -

MNKLSMGVFRCSSVSEILKYIRAITSHRAPIKYGVEKVEGKSYDRLRREANQKAIDLLNSLVDGATLTDEQRQILAGYTGEGGIGGSVSEYYTPKPIAEGVWEIMKLYGADVGNTLEPSAGTGVFNETKPVGTVMTATEISSVSGRINQLLHPEDSVQISPFEQLAVSTPNDSFDHVVGNVPFGGRDNTRNIDKPYAEETDMGSYFMLRMLDKIKPGGFMCVIVPPSIVSGSNMKRLRLRLSRKAEFLGAHRLPTGTFDANGTSTVVDVVLMRKHPAEMAEKIPLVHESTLESANVLWPTFISGKWFEKDGRRFVHGTQEKGFQGRIEVRADGQIDNQALKAKLIHCFESRIDWYLLDMAEPSPTADVVDEGEMRLINGVWQKYAGGRWIESDAGKELKIDVASYGADSWEALQRNLTTTEGRLGMTFTQMANVRDKYTTSISDDMVQLVDWINSQPEKYRERLYRGAMIGRMLIEYQDMKAAGHSAEQIEQQRLSLVSRLQAEIDRFGNPGRGPIAKLSGSGARAWFAFRGAIKLDGTISDELTGKLVTHDSSASYDSTSYQDTLRYLYSDLTRDPIQLDDFRLAFTGELPASDDELLNLLASTPGIAVSPYGGIVPFARATSGDINEIVAPKQEFLATLTDGPVKNNVLNQLAAIEEKRIKTPAENIRFKLNSRWFDRSVILEFLQENGYPDLRYVQSVQLEGDEMVSDTYHGGDGLFVGHRYGVVQRKDKETGEIRYEWDRKSGENATGFPAQLEKYLNGARIGGKDSATANGYREQMALLEDQFNKWIKTHDRYDELVAKYNDVFNSNIPYEHSGDPLGLKGLSGKRQPFDYQNSEVRRLSEDGRGILGFGTGLGKTTTALALEAFNYENGRSTRTAYVVPKSVLENWYYEAKEFLSEEAFSNYLFVGLDVLMDGDQIRQVPVLDENGKPVLGTDGTPVMRDALKLADEATITARMNAIPHSNYRAVVFTKEQYARIPLRDDTVDEHAQDMLYDFVAAGRVASAMDSDSHRKEAARRRVLSEYSDTGTEKAEKYPYFEDMGFDSVIADEGHNYRNSYKNGREASQLAYLPTSAVAQSARDMAIKNAYLMKKNGGRGPVLLTATPVVNTPIDAYNMLSHVLPKEYWQKMGIYGPDDFVKFFGKTRLETVQKISGEVEEKMALVGFENLDALRGIFHRWTTLKTAEDVKDTVEIPELDEHQQDAPLTEEQLAAYEELRQQAEAAAKANNGVTTSVNEDGVIEHEKARPIFSIIRDMDRVCTDMDLYYRRITYRFLPEYADAVQQLADSLPKQATSEDDDSDDSITQQSQYSLIDKGEFIQLQVPEAFEQEVNKRLARFGIDEQTVTHPVTPKYAKLIATLKEFFPEGKQIIFTDEKTQHQKLKRIICNALNLEPSKVGILNAQTVAEAGKTGKKLKAVKPPKELPDEPTDAQIAKYNEQMALYDAYIAQQNEMSLGGLEKIAADFQEGRTPIIICNKKAEVGINLHRGTTDIHHLTLPWTPASIAQRNGRGARVGSNRASVRVHYYCGKGSFDEYRLKTLKRKAGWISDILRSDKSEMENADANDMIEMQMYTAKDDGERLAMMQVQMDKAKAAQRARQKEQATIDLQNYIKAQHAAGEDVEVLTAELERSKAELEKTTAEVAKFKQAVMAKAADNADWKARWGSVHHTDRMLLAQYRASLKSAIQRKANISQAISPYEKLLNRTQKAATDIKRLRPLVEDAINKGILDVDPDLVNHASEFLVIGDRSWRVGQYYDCAGDIVRIKSLDFDSQRADVEIIFTFKGTKSGNWDVKTLDKQVDVTPDEDAVMQKISGGVSIAGINDIISCDDFYRFQQRGMIKITDSYGVQTTESGYSIDFVGTYTDPLKHAVYPDRRDGALKSSIAKWVLGMMSEGNNRQVRLAEVFLTELFGSNYGDVIASYGDTLSPEAIQEKIADAIARMPEKTSQGATRNGDSELEVTNAIFGTHEFRASDYEITTAQFGTIGIYSNKAEIKQAMDAASARIAAEREANLNHAVAALTQSWVTAIREAATTGKITPAIADVVNDGSKFMDAYKMDAVQLPSAYGQLSYRMTYNLVSMFSDLAILGLVDLNEVTPELLSMRKNHVEILQRINTVLAGRTDEEKQADADRINLALGNITEEEIAARNEKQEELSSIQGDATSIAQSLGLNYRVSTADLKMMYAPKFAAGEVFGLQEASGMKGVLFRAKDAIKTKFGARWLPAKAKNSDFPGNWWIIETKHNVADVLAVIQQYA