Amylopullulanase (gene TbbApu) from Thermoanaerobacter brockii
Enzyme Description
Species
Extremophile
Yes
thermophilic organism
EC Number
Sequence
MFKRRTLGFLLSFLLIYTAVFGSMPVQFAKAETDTAPAIANVVGDFQSKIGDSDWNINSDKTVMTYKGNGFYEFTTPVALPAGDYEYKVALNHSWEGGGVPSQGNLSLHLDSDSVVTFYYNYNTSSVTDSTKYTPIPEEKLPRIVGTIQSAIGAGDDWKPETSTAIMRDYKFNNVYEYTANVPKGYYEFKVTLGPSWDINYGLNGEQNGPNIPLNVAYDTKITFYYDSVSHNIWTDYNPPLTGPDNNIYYDDLKHDTHDPFFRSPFGAIKTGDTVTLRIQAKNHDLESAKISYWDDIKKTRTEVPMYKIGQSPDGQYEYWEVKLSFDYPTRIWYYFILKDGTKTAYYGDNDEQLGGVGKATDTVNKDFELTVYDKNLDTPDWMKGAVMYQIFPDRFYNGDPLNDRLKEYSRGFDPVEYHDDWYDLPDNPNDKDKPGYTGDGIWNNDFFGGDLQGINDKLDYLKNLGISVIYLNPIFQSPSNHRYDTTDYTKIDELLGDLDTFKTLMKEAHARGIKVILDGVFNHTSDDSIYFDRYGKYLDNELGAYQAWKQGDQSKSPYGDWYEIKPDGTYEGWWGFDSLPVIRQINGSEYNVKSWADFIINNPNAISKYWLNPDGDKDAGADGWRLDVANEIAHDFWVHFRAAINTVKPNAPMIAELWGDASLDLLGDSFNSVMNYLFRNAVIDFILDKQFDDGNVVHNPIDAAKLDQRLMSIYERYPLPVFYSTMNLLGSHDTMRILTVFGYNSANENQNSQEAKDLAVKRLKLAAILQMGYPGMPSIYYGDEAGQSGGKDPDNRRTFSWGREDKDLQDFFKKVVNIRNENQVLKTGDLETLYANGDVYAFGRRIINGKDVFGNSYPDSVAIVVINKGEAKSVQIDTTKFVRDGVAFTDALSGKTYTVRDGQIVVEVVALDGAILISDPGQNLTAPQPITDLKAVSGNGQVDLSWSAVDRAVSYNIYRSTVKGGLYEKIASNVTQITYIDTDVTNGLKYVYSVTAVDSDGNESALSNEVEAYPAFSIGWAGNMNQVDTHVIGVNNPVEVYAEIWAEGLTDKPGQGENMIAQLGYRYIGDGGQDATRNKVEGVEINKDWTWVDARYVGDSGNNDKYMAKFVPDMVGTWEYIMRFSSNQGQDWTYTKGPDGKTDEAKQFIVVPSNDVEPPTALGLQQPGIESSRVTLNWSLSTDNVAIYGYEIYKSLSETGPFVKIATVADTVYNYVDTDVVNGKVYYYKVVAVDTSFNRTASNIVKATPDIIPIKVIFNVTVPDYTPDDGANIAGNFHDAFWNPSAHQMTKTGPNTYSITLTLNEGTQLEYKYARGSWDKVEKGEYGEEIANRKITVVNQGSNTMVVNDTVQRWRDLPIYIYSPKDNTTVDANTNEIEIKGNTYKGAKVTINDESFVQQENGVFTKVVPLEYGVNTTKIHVEPSGDKNNELTKDITITVIREEPVQEKEPTPTPESEPAPMPEPQPTPTPEPQPSCNYGIVTASTLNLREGASITSKIIGTIPAGKVVKWLEEVNGWYKVDYNGKVGYVSTKYVSSVPDPSKVTVAKSVKVIVKSGLNVRVSSSVAARKIGAVPYGTELKVVEERNGWYLVQYKDGFGYIYSVYTVDTKASVLKTVKVTAKSGLNVRAGDSVKARKIGAVPYGTQLKVVGEYGAWYLIQYKNGFGYVYAKYTK
Hande Mumcu et al. (2023)
β Cloning and characterization of thermostable amylopullulanase TbbApu and its C-terminal truncated variants with enhanced activity in organic solvents
Enzyme and Microbial Technology
Β· doi:10.1016/j.enzmictec.2022.110176 β
Β· Activity - Classical Stability - Incubation
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Database ID
NCBI: MZ322507.1 β
Sequence Annotation
Explicit - Provided GenBank Accession Number
Protein Source
Recombinant, host bacterium Escherichia coli BL21
Experimental Data (64 measurements)
64 measurements β page 3 of 4
| Property | Assay | Solvent | Solvent Volume | Aqueous Reference | Measured Value | Units | Solution | pH | Temperature | Substrate(s) | Product(s) | Cofactor(s) | Shaking | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | 1-Butanol | 50% | 100.0 | 38.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | n-Hexane | 50% | 100.0 | 88.6 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Glycerol | 50% | 100.0 | 18.1 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Isopropanol | 50% | 100.0 | 36.1 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Acetone | 50% | 100.0 | 90.7 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Ethanol | 50% | 100.0 | 38.8 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Methanol | 50% | 100.0 | 41.8 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | 1-Butanol | 50% | 100.0 | 30.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | n-Hexane | 50% | 100.0 | 100.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Glycerol | 50% | 100.0 | 39.6 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Glycerol | 20% | 100.0 | 55.8 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | n-Hexane | 20% | 100.0 | 100.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | 1-Butanol | 20% | 100.0 | 48.1 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Methanol | 20% | 100.0 | 76.8 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Ethanol | 20% | 100.0 | 57.9 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Acetone | 20% | 100.0 | 92.3 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Isopropanol | 20% | 100.0 | 66.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 70Β°C | 1 % (v/v) Pullulan | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | Glycerol | 20% | 100.0 | 53.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | n-Hexane | 20% | 100.0 | 100.0 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
| Stability - Incubation | Activity after incubation (24 hours at 25Β°C), measured by absorbance spectrophotometry (DNS assay, 540 nm) in aqueous phase | 1-Butanol | 20% | 100.0 | 47.9 | % | Incubation: ?, Assay: 100 mM potassium phosphate buffer | Incubation: ?, Assay: 6.5 | Incubation: 25Β°C, Assay: 75Β°C | 1 % (v/v) Starch | Reducing sugars | β | β | Non-incubated control (in %), assay in aqueous phase | Clear about assay in diluted aqueous conditions ("organic solvent treated samples were diluted at a 1:3 ratio and a standard activity assay was performed for each enzyme") |
Visualization : Activity β Classical
One bar per measurement. Colour = solvent, shade = solvent volume.
Visualization : Stability β Incubation
One bar per measurement. Colour = solvent, shade = solvent volume.