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dcm competent e  (New England Biolabs)


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    Structured Review

    New England Biolabs dcm competent e
    Dcm Competent E, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 96/100, based on 293 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/e+coli+c2925/dam-%2Fdcm-+Comp+E%2Ecoli/pmc13095666-263-52-58
    Average 96 stars, based on 293 article reviews
    dcm competent e - by Bioz Stars, 2026-10
    96/100 stars

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    other:

    Article Title: Dcm methylation is detrimental to plasmid transformation in Clostridium thermocellum
    Article Snippet: E. coli C2925 , dam - dcm - , New England Biolabs.

    Article Title: Developing High‐Efficiency Electroporation Protocols for Hard‐To‐Transform Halomonas spp.
    Article Snippet: Escherichia coli 10‐beta and E. coli C2925 ( dam − , dcm − ) were sourced from New England Biolabs (NEB).

    Construct:

    Article Title: Improving the genetic system for Halorubrum lacusprofundi to allow in-frame deletions.
    Article Snippet: Ligation reactions were performed in 20 μl volume with 1 μL T4 Ligase (NEB), 2 μL 10x reaction buffer approximately 100 ng of vector and 300 ng of insert for 2 h at RT. .. Ligated constructs were transformed into E. coli DH5alpha, via heat-shock for 1 min at 42°C and plated on LB medium agar plates amended with 100 μg/mL ampicillin, followed by transformation into E. coli C2925 (NEB) for demethylation (Liao et al., 2021). ..

    Transformation Assay:

    Article Title: Improving the genetic system for Halorubrum lacusprofundi to allow in-frame deletions.
    Article Snippet: Ligation reactions were performed in 20 μl volume with 1 μL T4 Ligase (NEB), 2 μL 10x reaction buffer approximately 100 ng of vector and 300 ng of insert for 2 h at RT. .. Ligated constructs were transformed into E. coli DH5alpha, via heat-shock for 1 min at 42°C and plated on LB medium agar plates amended with 100 μg/mL ampicillin, followed by transformation into E. coli C2925 (NEB) for demethylation (Liao et al., 2021). ..

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii
    Article Snippet: .. H. volcanii transformation was performed as described [ ], with plasmids purified from the methylation-deficient E. coli C2925 (NEB). ..

    Article Title: Improving the genetic system for Halorubrum lacusprofundi to allow in-frame deletions.
    Article Snippet: .. Genetic manipulation of Hrr. lacusprofundi All plasmids were transformed into E. coli C2925 (NEB) for demethylation before transformation into Hrr. lacusprofundi strains. ..

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii .
    Article Snippet: .. H. volcanii transformation was performed as described [25], with plasmids purified from the methylation- deficient E. coli C2925 (NEB). ..

    Purification:

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii
    Article Snippet: .. H. volcanii transformation was performed as described [ ], with plasmids purified from the methylation-deficient E. coli C2925 (NEB). ..

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii .
    Article Snippet: .. H. volcanii transformation was performed as described [25], with plasmids purified from the methylation- deficient E. coli C2925 (NEB). ..

    Methylation:

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii
    Article Snippet: .. H. volcanii transformation was performed as described [ ], with plasmids purified from the methylation-deficient E. coli C2925 (NEB). ..

    Article Title: A vector system for single and tandem expression of cloned genes and multi-colour fluorescent tagging in Haloferax volcanii .
    Article Snippet: .. H. volcanii transformation was performed as described [25], with plasmids purified from the methylation- deficient E. coli C2925 (NEB). ..

    Plasmid Preparation:

    Article Title: Dcm methylation is detrimental to plasmid transformation in Clostridium thermocellum
    Article Snippet: .. Plasmid DNA was isolated from yeast using Zymoprep Yeast Plasmid Miniprep II kit (Zymo Research, Orange, CA, USA) and introduced via electroporation into E. coli Top10 ( dam + dcm + E. coli K12 derivative from Invitrogen, Carlsbad, CA) and via chemical competence into E. coli BL21 (DE3) ( dam + dcm - E. coli B derivative; New England Biolabs, Ipswich, MA) and E. coli C2925 ( dam - dcm - E. coli K12 derivative; New England Biolabs). ..

    Isolation:

    Article Title: Dcm methylation is detrimental to plasmid transformation in Clostridium thermocellum
    Article Snippet: .. Plasmid DNA was isolated from yeast using Zymoprep Yeast Plasmid Miniprep II kit (Zymo Research, Orange, CA, USA) and introduced via electroporation into E. coli Top10 ( dam + dcm + E. coli K12 derivative from Invitrogen, Carlsbad, CA) and via chemical competence into E. coli BL21 (DE3) ( dam + dcm - E. coli B derivative; New England Biolabs, Ipswich, MA) and E. coli C2925 ( dam - dcm - E. coli K12 derivative; New England Biolabs). ..

    Electroporation:

    Article Title: Dcm methylation is detrimental to plasmid transformation in Clostridium thermocellum
    Article Snippet: .. Plasmid DNA was isolated from yeast using Zymoprep Yeast Plasmid Miniprep II kit (Zymo Research, Orange, CA, USA) and introduced via electroporation into E. coli Top10 ( dam + dcm + E. coli K12 derivative from Invitrogen, Carlsbad, CA) and via chemical competence into E. coli BL21 (DE3) ( dam + dcm - E. coli B derivative; New England Biolabs, Ipswich, MA) and E. coli C2925 ( dam - dcm - E. coli K12 derivative; New England Biolabs). ..



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    Effect of plasmid source on the electroporation efficiency of Halomonas elongata DSM 2581. (a) Electroporation efficiencies of pSEVA241 purified from either <t>E.</t> <t>coli</t> 10‐beta (NEB) or H. elongata DSM 2581. (b) Electroporation efficiencies of pSEVA231 purified from either E. coli 10‐beta (NEB), E. coli <t>C2925</t> (NEB) or H. elongata DSM 2581. Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA241 (a) or pSEVA231 (b) (* p < 0.05; *** p < 0.001; **** p < 0.0001).
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    New England Biolabs dam dcm e coli
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    ( A-C ) Effect of buffer, voltage, and waveform on transformation efficiency (TE) in three Gram-negative bacteria. Data are the average of two biological replicates. ( A ) TE using four buffers: water, 25% sorbitol, 10% or 15% glycerol, and 25% sucrose. Data shown was electroporated at 3 kV using exponential decay (see additional voltages in Supplementary Figure 3). ( B ) TE using a range of electroporation voltages: 0.5-3 kV. Cells were washed with 10% glycerol ( <t>E.</t> <t>coli</t> ), 25% sorbitol ( S. amazonensis ), and 15% glycerol ( P. alcaliphila ), and electroporated using exponential decay waveform. Error bars represent standard error. ( C ) Comparison of TE using square or exponential decay waveforms. Data are results for all voltages and buffers tested in panel B. ( D ) Final parameter selection for 24-condition electroporation screen including four buffers, three voltages and two waveforms. ( E-F ) TE following the 24-condition electroporation screen performed on seven bacteria with a single plasmid using ( E ) exponential decay (EX) and ( F ) square (SQ) waveforms. Data are the average of two biological replicates, except P. sakaiensis and C. necator which are a single replicate.
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    Effect of plasmid source on the electroporation efficiency of Halomonas elongata DSM 2581. (a) Electroporation efficiencies of pSEVA241 purified from either E. coli 10‐beta (NEB) or H. elongata DSM 2581. (b) Electroporation efficiencies of pSEVA231 purified from either E. coli 10‐beta (NEB), E. coli C2925 (NEB) or H. elongata DSM 2581. Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA241 (a) or pSEVA231 (b) (* p < 0.05; *** p < 0.001; **** p < 0.0001).

    Journal: Microbial Biotechnology

    Article Title: Developing High‐Efficiency Electroporation Protocols for Hard‐To‐Transform Halomonas spp.

    doi: 10.1111/1751-7915.70285

    Figure Lengend Snippet: Effect of plasmid source on the electroporation efficiency of Halomonas elongata DSM 2581. (a) Electroporation efficiencies of pSEVA241 purified from either E. coli 10‐beta (NEB) or H. elongata DSM 2581. (b) Electroporation efficiencies of pSEVA231 purified from either E. coli 10‐beta (NEB), E. coli C2925 (NEB) or H. elongata DSM 2581. Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA241 (a) or pSEVA231 (b) (* p < 0.05; *** p < 0.001; **** p < 0.0001).

    Article Snippet: Escherichia coli 10‐beta and E. coli C2925 ( dam − , dcm − ) were sourced from New England Biolabs (NEB).

    Techniques: Plasmid Preparation, Electroporation, Purification, Standard Deviation, Negative Control

    Electroporation of Halomonas boliviensis LC1 and Halomonas campaniensis LS21. Electroporation efficiencies of H. boliviensis LC1 and H. campaniensis LS21 transformed with pSEVA231 purified from either E. coli C2925 (NEB) (a) Comparison of electroporation efficiencies from electrocompetent cells prepared from cultures grown in LB medium containing different concentrations of NaCl: 6% vs. 1%. (b) Comparison of electroporation efficiencies using two different electroporator systems—Bio‐Rad MicroPulser vs. Bio‐Rad Gene Pulser—under varying electroporation conditions: Voltage, pulse number and resistance. Parameters for conditions C1, C4, C6 and C7 are detailed in Figure . Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA231. (*** p < 0.001; **** p < 0.0001)

    Journal: Microbial Biotechnology

    Article Title: Developing High‐Efficiency Electroporation Protocols for Hard‐To‐Transform Halomonas spp.

    doi: 10.1111/1751-7915.70285

    Figure Lengend Snippet: Electroporation of Halomonas boliviensis LC1 and Halomonas campaniensis LS21. Electroporation efficiencies of H. boliviensis LC1 and H. campaniensis LS21 transformed with pSEVA231 purified from either E. coli C2925 (NEB) (a) Comparison of electroporation efficiencies from electrocompetent cells prepared from cultures grown in LB medium containing different concentrations of NaCl: 6% vs. 1%. (b) Comparison of electroporation efficiencies using two different electroporator systems—Bio‐Rad MicroPulser vs. Bio‐Rad Gene Pulser—under varying electroporation conditions: Voltage, pulse number and resistance. Parameters for conditions C1, C4, C6 and C7 are detailed in Figure . Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA231. (*** p < 0.001; **** p < 0.0001)

    Article Snippet: Escherichia coli 10‐beta and E. coli C2925 ( dam − , dcm − ) were sourced from New England Biolabs (NEB).

    Techniques: Electroporation, Transformation Assay, Purification, Comparison, Standard Deviation, Negative Control, Plasmid Preparation

    Effect of plasmid source on the electroporation efficiency of Halomonas elongata DSM 2581. (a) Electroporation efficiencies of pSEVA241 purified from either E. coli 10‐beta (NEB) or H. elongata DSM 2581. (b) Electroporation efficiencies of pSEVA231 purified from either E. coli 10‐beta (NEB), E. coli C2925 (NEB) or H. elongata DSM 2581. Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA241 (a) or pSEVA231 (b) (* p < 0.05; *** p < 0.001; **** p < 0.0001).

    Journal: Microbial Biotechnology

    Article Title: Developing High‐Efficiency Electroporation Protocols for Hard‐To‐Transform Halomonas spp.

    doi: 10.1111/1751-7915.70285

    Figure Lengend Snippet: Effect of plasmid source on the electroporation efficiency of Halomonas elongata DSM 2581. (a) Electroporation efficiencies of pSEVA241 purified from either E. coli 10‐beta (NEB) or H. elongata DSM 2581. (b) Electroporation efficiencies of pSEVA231 purified from either E. coli 10‐beta (NEB), E. coli C2925 (NEB) or H. elongata DSM 2581. Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA241 (a) or pSEVA231 (b) (* p < 0.05; *** p < 0.001; **** p < 0.0001).

    Article Snippet: Following this approach, we tested electroporating H. elongata with plasmids purified from the dam − / dcm − E. coli C2925 (NEB).

    Techniques: Plasmid Preparation, Electroporation, Purification, Standard Deviation, Negative Control

    Electroporation of Halomonas boliviensis LC1 and Halomonas campaniensis LS21. Electroporation efficiencies of H. boliviensis LC1 and H. campaniensis LS21 transformed with pSEVA231 purified from either E. coli C2925 (NEB) (a) Comparison of electroporation efficiencies from electrocompetent cells prepared from cultures grown in LB medium containing different concentrations of NaCl: 6% vs. 1%. (b) Comparison of electroporation efficiencies using two different electroporator systems—Bio‐Rad MicroPulser vs. Bio‐Rad Gene Pulser—under varying electroporation conditions: Voltage, pulse number and resistance. Parameters for conditions C1, C4, C6 and C7 are detailed in Figure . Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA231. (*** p < 0.001; **** p < 0.0001)

    Journal: Microbial Biotechnology

    Article Title: Developing High‐Efficiency Electroporation Protocols for Hard‐To‐Transform Halomonas spp.

    doi: 10.1111/1751-7915.70285

    Figure Lengend Snippet: Electroporation of Halomonas boliviensis LC1 and Halomonas campaniensis LS21. Electroporation efficiencies of H. boliviensis LC1 and H. campaniensis LS21 transformed with pSEVA231 purified from either E. coli C2925 (NEB) (a) Comparison of electroporation efficiencies from electrocompetent cells prepared from cultures grown in LB medium containing different concentrations of NaCl: 6% vs. 1%. (b) Comparison of electroporation efficiencies using two different electroporator systems—Bio‐Rad MicroPulser vs. Bio‐Rad Gene Pulser—under varying electroporation conditions: Voltage, pulse number and resistance. Parameters for conditions C1, C4, C6 and C7 are detailed in Figure . Data shown represent mean ± standard deviation from three biological replicates. Negative control experiments were performed by electroporating electrocompetent cells without the addition of plasmid pSEVA231. (*** p < 0.001; **** p < 0.0001)

    Article Snippet: Following this approach, we tested electroporating H. elongata with plasmids purified from the dam − / dcm − E. coli C2925 (NEB).

    Techniques: Electroporation, Transformation Assay, Purification, Comparison, Standard Deviation, Negative Control, Plasmid Preparation

    ( A-C ) Effect of buffer, voltage, and waveform on transformation efficiency (TE) in three Gram-negative bacteria. Data are the average of two biological replicates. ( A ) TE using four buffers: water, 25% sorbitol, 10% or 15% glycerol, and 25% sucrose. Data shown was electroporated at 3 kV using exponential decay (see additional voltages in Supplementary Figure 3). ( B ) TE using a range of electroporation voltages: 0.5-3 kV. Cells were washed with 10% glycerol ( E. coli ), 25% sorbitol ( S. amazonensis ), and 15% glycerol ( P. alcaliphila ), and electroporated using exponential decay waveform. Error bars represent standard error. ( C ) Comparison of TE using square or exponential decay waveforms. Data are results for all voltages and buffers tested in panel B. ( D ) Final parameter selection for 24-condition electroporation screen including four buffers, three voltages and two waveforms. ( E-F ) TE following the 24-condition electroporation screen performed on seven bacteria with a single plasmid using ( E ) exponential decay (EX) and ( F ) square (SQ) waveforms. Data are the average of two biological replicates, except P. sakaiensis and C. necator which are a single replicate.

    Journal: bioRxiv

    Article Title: Active learning guides automated discovery of DNA delivery via electroporation for non-model microbes

    doi: 10.1101/2025.11.18.689155

    Figure Lengend Snippet: ( A-C ) Effect of buffer, voltage, and waveform on transformation efficiency (TE) in three Gram-negative bacteria. Data are the average of two biological replicates. ( A ) TE using four buffers: water, 25% sorbitol, 10% or 15% glycerol, and 25% sucrose. Data shown was electroporated at 3 kV using exponential decay (see additional voltages in Supplementary Figure 3). ( B ) TE using a range of electroporation voltages: 0.5-3 kV. Cells were washed with 10% glycerol ( E. coli ), 25% sorbitol ( S. amazonensis ), and 15% glycerol ( P. alcaliphila ), and electroporated using exponential decay waveform. Error bars represent standard error. ( C ) Comparison of TE using square or exponential decay waveforms. Data are results for all voltages and buffers tested in panel B. ( D ) Final parameter selection for 24-condition electroporation screen including four buffers, three voltages and two waveforms. ( E-F ) TE following the 24-condition electroporation screen performed on seven bacteria with a single plasmid using ( E ) exponential decay (EX) and ( F ) square (SQ) waveforms. Data are the average of two biological replicates, except P. sakaiensis and C. necator which are a single replicate.

    Article Snippet: Individual pGL2 plasmids ( Supplementary Table 1 ) were stored in TransforMax EC100D pir-116 cells (Biosearch Technologies); pAKgfp1-kan was stored in dam–/dcm– E. coli (New England Biolabs).

    Techniques: Transformation Assay, Bacteria, Electroporation, Comparison, Selection, Plasmid Preparation

    ( A-C ) Effect of buffer, voltage, and waveform on transformation efficiency (TE) in three Gram-negative bacteria. Data are the average of two biological replicates. ( A ) TE using four buffers: water, 25% sorbitol, 10% or 15% glycerol, and 25% sucrose. Data shown was electroporated at 3 kV using exponential decay (see additional voltages in Supplementary Figure 3). ( B ) TE using a range of electroporation voltages: 0.5-3 kV. Cells were washed with 10% glycerol ( E. coli ), 25% sorbitol ( S. amazonensis ), and 15% glycerol ( P. alcaliphila ), and electroporated using exponential decay waveform. Error bars represent standard error. ( C ) Comparison of TE using square or exponential decay waveforms. Data are results for all voltages and buffers tested in panel B. ( D ) Final parameter selection for 24-condition electroporation screen including four buffers, three voltages and two waveforms. ( E-F ) TE following the 24-condition electroporation screen performed on seven bacteria with a single plasmid using ( E ) exponential decay (EX) and ( F ) square (SQ) waveforms. Data are the average of two biological replicates, except P. sakaiensis and C. necator which are a single replicate.

    Journal: bioRxiv

    Article Title: Active learning guides automated discovery of DNA delivery via electroporation for non-model microbes

    doi: 10.1101/2025.11.18.689155

    Figure Lengend Snippet: ( A-C ) Effect of buffer, voltage, and waveform on transformation efficiency (TE) in three Gram-negative bacteria. Data are the average of two biological replicates. ( A ) TE using four buffers: water, 25% sorbitol, 10% or 15% glycerol, and 25% sucrose. Data shown was electroporated at 3 kV using exponential decay (see additional voltages in Supplementary Figure 3). ( B ) TE using a range of electroporation voltages: 0.5-3 kV. Cells were washed with 10% glycerol ( E. coli ), 25% sorbitol ( S. amazonensis ), and 15% glycerol ( P. alcaliphila ), and electroporated using exponential decay waveform. Error bars represent standard error. ( C ) Comparison of TE using square or exponential decay waveforms. Data are results for all voltages and buffers tested in panel B. ( D ) Final parameter selection for 24-condition electroporation screen including four buffers, three voltages and two waveforms. ( E-F ) TE following the 24-condition electroporation screen performed on seven bacteria with a single plasmid using ( E ) exponential decay (EX) and ( F ) square (SQ) waveforms. Data are the average of two biological replicates, except P. sakaiensis and C. necator which are a single replicate.

    Article Snippet: The plasmid was then transformed into dam–/dcm– electrocompetent E. coli (New England Biolabs) according to the manufacturer’s instructions, extracted and sequence verified by Eton Bioscience (Boston, MA).

    Techniques: Transformation Assay, Bacteria, Electroporation, Comparison, Selection, Plasmid Preparation