gene Archives - Laboratory Notes https://www.laboratorynotes.com/tag/gene/ Wed, 30 Apr 2025 09:29:07 +0000 en hourly 1 https://wordpress.org/?v=6.9 trp Promoter https://www.laboratorynotes.com/trp-promoter/ https://www.laboratorynotes.com/trp-promoter/#respond Wed, 30 Apr 2025 09:29:06 +0000 https://www.laboratorynotes.com/?p=18312 The trp promoter is a naturally occurring promoter derived from the tryptophan (trp) operon of Escherichia coli, which controls genes...

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]]> https://www.laboratorynotes.com/trp-promoter/feed/ 0 T7 RNA Polymerase https://www.laboratorynotes.com/t7-rna-polymerase/ https://www.laboratorynotes.com/t7-rna-polymerase/#respond Wed, 30 Apr 2025 04:30:09 +0000 https://www.laboratorynotes.com/?p=18314 T7 RNA polymerase is a highly specific and efficient RNA polymerase derived from bacteriophage T7, widely used in molecular biology...

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]]> https://www.laboratorynotes.com/t7-rna-polymerase/feed/ 0 In Vitro T7 Transcription System https://www.laboratorynotes.com/in-vitro-t7-transcription-system/ https://www.laboratorynotes.com/in-vitro-t7-transcription-system/#respond Wed, 30 Apr 2025 04:15:17 +0000 https://www.laboratorynotes.com/?p=18325 The in vitro T7 transcription system is a widely used tool in molecular biology that harnesses the powerful and specific...

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]]> https://www.laboratorynotes.com/in-vitro-t7-transcription-system/feed/ 0 pLysS System Vs pLysE System https://www.laboratorynotes.com/plyss-system-vs-plyse-system/ https://www.laboratorynotes.com/plyss-system-vs-plyse-system/#respond Wed, 30 Apr 2025 04:15:05 +0000 https://www.laboratorynotes.com/?p=18327 Criteria pLysS System pLysE System Remarks Encoded Protein T7 Lysozyme (low expression level) T7 Lysozyme (high expression level) Both express...

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]]> https://www.laboratorynotes.com/plyss-system-vs-plyse-system/feed/ 0 SP6 RNA Polymerase https://www.laboratorynotes.com/sp6-rna-polymerase/ https://www.laboratorynotes.com/sp6-rna-polymerase/#respond Tue, 29 Apr 2025 20:56:39 +0000 https://www.laboratorynotes.com/?p=18329 SP6 RNA polymerase is a DNA-dependent RNA polymerase derived from Salmonella bacteriophage SP6, commonly used for in vitro transcription of...

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]]> https://www.laboratorynotes.com/sp6-rna-polymerase/feed/ 0 T3 RNA Polymerase https://www.laboratorynotes.com/t3-rna-polymerase/ https://www.laboratorynotes.com/t3-rna-polymerase/#respond Tue, 29 Apr 2025 20:56:30 +0000 https://www.laboratorynotes.com/?p=18331 T3 RNA polymerase is a DNA-dependent RNA polymerase derived from bacteriophage T3, closely related to T7 RNA polymerase, but with...

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]]> https://www.laboratorynotes.com/t3-rna-polymerase/feed/ 0 T3 Promoter https://www.laboratorynotes.com/t3-promoter/ https://www.laboratorynotes.com/t3-promoter/#respond Tue, 29 Apr 2025 20:56:19 +0000 https://www.laboratorynotes.com/?p=18333 The T3 promoter is a highly specific DNA sequence recognized exclusively by T3 RNA polymerase, originating from bacteriophage T3. It...

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]]> https://www.laboratorynotes.com/t3-promoter/feed/ 0 SP6 Promoter https://www.laboratorynotes.com/sp6-promoter/ https://www.laboratorynotes.com/sp6-promoter/#respond Tue, 29 Apr 2025 20:55:31 +0000 https://www.laboratorynotes.com/?p=18335 The SP6 promoter is a short, well-characterized DNA sequence recognized specifically by SP6 RNA polymerase, derived from Salmonella bacteriophage SP6. ...

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]]> https://www.laboratorynotes.com/sp6-promoter/feed/ 0 Ptac Promoter https://www.laboratorynotes.com/ptac-promoter/ https://www.laboratorynotes.com/ptac-promoter/#respond Tue, 29 Apr 2025 10:29:06 +0000 https://www.laboratorynotes.com/?p=18257 The Ptac promoter is a synthetic hybrid promoter created by combining elements of the trp and lac promoters, designed to...

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]]> https://www.laboratorynotes.com/ptac-promoter/feed/ 0 araBAD Promoter https://www.laboratorynotes.com/arabad-promoter/ https://www.laboratorynotes.com/arabad-promoter/#respond Tue, 29 Apr 2025 10:07:51 +0000 https://www.laboratorynotes.com/?p=18254 The araBAD promoter is a tightly regulated and inducible promoter derived from the arabinose operon of Escherichia coli, which controls...

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]]> https://www.laboratorynotes.com/arabad-promoter/feed/ 0 T7 Promoter https://www.laboratorynotes.com/t7-promoter/ https://www.laboratorynotes.com/t7-promoter/#respond Tue, 29 Apr 2025 10:04:46 +0000 https://www.laboratorynotes.com/?p=18252 The T7 promoter is a bacteriophage-derived promoter that is widely used for high-level expression of recombinant proteins in Escherichia coli...

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]]> https://www.laboratorynotes.com/t7-promoter/feed/ 0 LacUV5 Promoter https://www.laboratorynotes.com/lacuv5-promoter/ https://www.laboratorynotes.com/lacuv5-promoter/#respond Tue, 29 Apr 2025 09:38:53 +0000 https://www.laboratorynotes.com/?p=18243 The lacUV5 promoter is a mutated version of the native E. coli lac promoter, engineered for stronger and more consistent...

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]]> https://www.laboratorynotes.com/lacuv5-promoter/feed/ 0 Escherichia coli BL21(DE3)pLysS https://www.laboratorynotes.com/escherichia-coli-bl21de3plyss/ https://www.laboratorynotes.com/escherichia-coli-bl21de3plyss/#respond Tue, 29 Apr 2025 08:53:18 +0000 https://www.laboratorynotes.com/?p=18224 Escherichia coli (E. coli) BL21(DE3)pLysS is a widely used strain for controlled recombinant protein expression, particularly when working with proteins...

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]]> https://www.laboratorynotes.com/escherichia-coli-bl21de3plyss/feed/ 0 Escherichia coli BL21 https://www.laboratorynotes.com/escherichia-coli-bl21/ https://www.laboratorynotes.com/escherichia-coli-bl21/#respond Tue, 29 Apr 2025 08:44:00 +0000 https://www.laboratorynotes.com/?p=18222 Escherichia coli (E. coli) BL21 is one of the most commonly used bacterial strains for recombinant protein expression.  Derived from...

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]]> https://www.laboratorynotes.com/escherichia-coli-bl21/feed/ 0 Escherichia coli Expression System https://www.laboratorynotes.com/escherichia-coli-expression-system/ https://www.laboratorynotes.com/escherichia-coli-expression-system/#respond Mon, 28 Apr 2025 23:52:31 +0000 https://www.laboratorynotes.com/?p=18215 The Escherichia coli (E. coli) expression system is one of the most widely used platforms for recombinant protein production in...

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]]> https://www.laboratorynotes.com/escherichia-coli-expression-system/feed/ 0 Prokaryotic Expression System https://www.laboratorynotes.com/prokaryotic-expression-system/ https://www.laboratorynotes.com/prokaryotic-expression-system/#respond Mon, 28 Apr 2025 22:45:33 +0000 https://www.laboratorynotes.com/?p=18211 Prokaryotic expression systems are powerful tools used to produce recombinant proteins by utilizing the cellular machinery of bacteria.  These systems...

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]]> https://www.laboratorynotes.com/prokaryotic-expression-system/feed/ 0 Ectopic Expression Vs Heterologous Expression https://www.laboratorynotes.com/ectopic-expression-vs-heterologous-expression/ https://www.laboratorynotes.com/ectopic-expression-vs-heterologous-expression/#respond Mon, 28 Apr 2025 13:26:17 +0000 https://www.laboratorynotes.com/?p=18209 Criteria Ectopic Expression Heterologous Expression Remarks Definition Expression of a gene in a different tissue, cell type, or subcellular location...

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]]> https://www.laboratorynotes.com/ectopic-expression-vs-heterologous-expression/feed/ 0 Heterologous Expression System https://www.laboratorynotes.com/heterologous-expression-system/ https://www.laboratorynotes.com/heterologous-expression-system/#respond Mon, 28 Apr 2025 13:10:06 +0000 https://www.laboratorynotes.com/?p=18207 Heterologous expression systems are experimental platforms used to express genes or proteins in a host organism that is different from...

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]]> https://www.laboratorynotes.com/heterologous-expression-system/feed/ 0 Heterologous Expression https://www.laboratorynotes.com/heterologous-expression/ https://www.laboratorynotes.com/heterologous-expression/#respond Mon, 28 Apr 2025 12:51:43 +0000 https://www.laboratorynotes.com/?p=18204 Heterologous expression refers to the production of a gene product — typically a protein — in a host organism, cell...

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]]> https://www.laboratorynotes.com/heterologous-expression/feed/ 0 Ectopic Expression https://www.laboratorynotes.com/ectopic-expression/ https://www.laboratorynotes.com/ectopic-expression/#respond Mon, 28 Apr 2025 12:28:34 +0000 https://www.laboratorynotes.com/?p=18202 Ectopic expression refers to the abnormal or unintended activation of a gene in a cell type, tissue, or developmental stage...

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