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Meta data
Organism
Assay Composition
Km Values
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Item | Value | ||||||||
Experimentator | Wayne Aubrey | ||||||||
Raw data | |||||||||
Reference | SYSMO-LAB | ||||||||
Description | Heterologous Expression of LDHs from L.lactis (MG1263) in Escherichia coli DH5α. Measurements on kinetics of L-LDHs at pH 7.5 | ||||||||
Aim | Assessment of kinetic parameters of LDH to include in a catabolic model | ||||||||
overexpression strain | E.coli DH5α | ||||||||
Organism of Origin | L.lactis | ||||||||
Vessel type | 96 wellplate | ||||||||
Stirring rate | 0 | RPM | |||||||
Temperature | 30 | degree celcius | |||||||
Volume | 300 | µl | |||||||
Gas flow | 0 | ml | |||||||
pH | 7.5 | ||||||||
SOP's used | 1 | ||||||||
Explanations | Format | Data | |||||||
TOPIC | |||||||||
Title | text | Heterologous Expression of LDHs from L.lactis in Escherichia coli DH5α. Measurements on kinetics of L-LDHs at pH 7.5 | |||||||
Comments | text | some comments | |||||||
ASSAY | |||||||||
Title | text | LDH kinetics | |||||||
Assay_type | integer | enzyme kinetics | |||||||
Comments | purified enzyme | ||||||||
EXPERIMENT | |||||||||
Experiment_description | text | Forward reaction: Measurement at 380 nm-> Decrease of NADH | |||||||
Experiment_type | text | Concentration series | |||||||
Experimentalist | text | Wayne Aubrey | |||||||
Begin_date | date | 2012-11-19T0:0:0+0000 | |||||||
User | integer | Wayne Aubrey | |||||||
Group | integer | SYSMOLAB | |||||||
SOP | 1 | ||||||||
Organism of Origin | |||||||||
Organism | integer | L.lactis | |||||||
NCBI_ID | integer | 416870 | |||||||
Strain | text | MG1363 | |||||||
Genotype | text | wild-type | |||||||
Phenotype | text | wild-type | |||||||
Experimental_conditions | |||||||||
FACTORS_STUDIED | |||||||||
Item | text | Km | |||||||
Start_value | float/text | 0 | |||||||
End_value | float/text | 0 | |||||||
Unit | text | mM | |||||||
Comments | concentration dependent rates | ||||||||
DATA_CREATED | |||||||||
Datatype | text | rates | |||||||
Creation_date | date | 11/2012-12/2012 | |||||||
Status | text | row, normalised, .... | |||||||
Person_created | text | Wayne Aubrey | |||||||
DATA_FILE | |||||||||
File_name | text | Llactis_ldh_kinetic | |||||||
File_type | text | excel sheet | |||||||
Storage_location | text | SYSMOSEEK | |||||||
Storage_date | date | 2013-01-22T0:0:0+0000 | |||||||
Last_change_date | date | 2013-01-22T0:0:0+0000 | |||||||
TemplateID | text | Enzyme kinetics template |
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strain | gene | length | ORF | organism of origin | protein | EC number | MW in kDA | vector | tagged terminus | expression |
E.coli DH5α IBA2_Lp_ldhL1 | ldhL1 | 978 bp | L0017 | L.lactis MG1363 | L-lactate dehydrogenase 1 | 1.1.1.27 | 34.21 | pASK-IBA2 | C | periplasmic |
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LDH | 1.1.1.27 | Cell extract dilutions | 10x-30x | Stock | M | Final conc in assay | M | mM | ||||
LDH down | Master | HEPES | 0.3 | HEPES | 0.1 | M | 100 | |||||
Reagent mix | 1 assay | 12 assay | 24 assay | 48 assay | Potassium | 1.314 | Potassium | 0.438 | M | 438 | ||
(µL) | (µL) | (µL) | (µL) | glutamate | 1.2 | glutamate | 0.4 | M | 400 | |||
H2Od | 124.8 | 1872 | 3949.4 | 6864 | phosphate | 0.003 | phosphate | 0.001 | M | 1 | ||
Master Assay buffer | 100 | 1500 | 2800 | 5500 | NaCl | 0.15 | NaCl | 0.05 | M | 50 | ||
CDM-PC Metals solution 1x | 30 | 450 | 840 | 1650 | Metals | 1 | x | Metals | 0.1 | x | ||
MgSO4 | 1.2 | 18 | 33.6 | 66 | MgSO4 | 0.5 | MgSO4 | 0.002 | M | 2 | ||
Fructose-1,6-bisphosphate | 3 | 45 | 84 | 165 | F16bP | 0.3 | F16bP | 0.003 | M | 3 | ||
NADH (grade II disodium-) | 6 | 90 | 168 | 330 | NADH | 0.015 | NADH | 3.0E-4 | M | 0.3 | ||
Sum | 265 | 3975 | 7875 | 14575 | PYR | 0.2 | PYR | 0.02 | M | 20 | ||
Add per well | 265 | 265 | 265 | 265 | ||||||||
Sample | 5 | 5 | 5 | 5 | PYR stock needed | |||||||
Start reaction with: | 32 | 384 | 768 | 1536 | M | 0.2 | ||||||
Pyruvate | 30 | 30 | 30 | 30 | mL | 1 | ||||||
Total mixture in well | 300 | 300 | 300 | 300 | ||||||||
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Identifier | Sample | Organism | Enzyme | Subtrate | pH | Km value | standard deviation Km | Commentary | |
unit | 1.0 | 1.0 | 1.0 | 1.0 | mM | % | |||
1 | L.lactis MG1363 | L-LDH | NADH | 7.5 | 0.125 | 0.006 | in presence of fructose-1.6-bisphosphate | ||
2 | L.lactis MG1363 | L-LDH | Pyruvate | 7.5 | 1.76 | 0.12 | in presence of fructose-1.6-bisphosphate | ||