LacI WT Protein, E.coli (His)
Based on 1 Customer Validation
LacI, the lactose operon repressor, regulates lactose metabolism by binding to the operator region and repressing gene transcription. The presence of the inducer, allolactose, alters its binding affinity, derepressing the operon. As a homotetramer, LacI finely tunes lactose metabolism, orchestrating regulatory mechanisms in response to the cellular environment. LacI WT Protein, E.coli (His) is the recombinant E. coli-derived LacI WT protein, expressed by E. coli , with N-10*His labeled tag.
- Species: E.coli
- Source: E. coli
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
LacI, the lactose operon repressor, regulates lactose metabolism by binding to the operator region and repressing gene transcription. The presence of the inducer, allolactose, alters its binding affinity, derepressing the operon. As a homotetramer, LacI finely tunes lactose metabolism, orchestrating regulatory mechanisms in response to the cellular environment. LacI WT Protein, E.coli (His) is the recombinant E. coli-derived LacI WT protein, expressed by E. coli , with N-10*His labeled tag.
LacI, the repressor of the lactose operon, plays a crucial role in the regulation of lactose metabolism. It functions by binding to the operator region and repressing the transcription of genes involved in lactose utilization. The binding affinity is altered in the presence of the inducer, allolactose, which leads to the derepression of the operon. As a homotetramer, LacI orchestrates the regulatory mechanisms that finely tune lactose metabolism in response to the cellular environment.
Technical Parameters
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Species E.coli
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Source E. coli
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Tag N-10*His
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Accession
P03023 (M1-Q360)
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Gene ID945007
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Molecular Construction
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N-term
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10*His
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LacI WT (M1-Q360)
Accession # P03023 -
C-term
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Protein Length
Full Length
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Synonyms
TFPI; EPI; Prev. LACI; Tissue Factor Pathway Inhibitor (Lipoprotein-Associated Coagulation Inhibitor); Extrinsic Pathway Inhibitor; Lipoprotein-Associated Coagulation Inhibitor; TFPI1; Anti-Convertin; Tissue Factor Pathway Inhibitor; TFI
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AA Sequence
MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAELNYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGVEACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSHEDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSAMSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSCYIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPRALADSLMQLARQVSRLESGQ
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Predicted Molecular Mass
38.6 kDa
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Molecular Weight
Approximately 42 kDa, based on SDS-PAGE under reducing conditions.
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Purity
≥ 90%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
Lyophilized from a 0.22 μm filtered solution of 50 mM Tris-HCl, 300 mM NaCL, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
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Data Sheet (237 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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