Carbonic Anhydrase 1 Protein, Human (His, solution)
Based on 1 Customer Validation
Carbonic Anhydrase 1 Protein, Human (His, solution) expresses in E. coli with a His tag at the N-terminus. Carbonic Anhydrase 1 (CA1) expression and CA1-mediated calcification are significantly associated with atherosclerosis (AS) progression.
- Species: Human
- Source: E. coli
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Storage:Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Biological Activity
Description
Carbonic Anhydrase 1 Protein, Human (His, solution) expresses in E. coli with a His tag at the N-terminus. Carbonic Anhydrase 1 (CA1) expression and CA1-mediated calcification are significantly associated with atherosclerosis (AS) progression[1].
Background
Carbonic anhydrase 1 (CA1) is a member of the carbonic anhydrase (CA) family that reversibly catalyzes the hydration of CO2 to form HCO3-, which then rapidly binds to calcium ions to form calcium carbonate. CA1 was also highly expressed in human AS tissues and in rat vascular smooth muscle cells (VSMCs) with β-glycerophosphate-induced calcification[1].
Verified Bioactivity
The esterase activity is determined to be greater than 24 pmol/min/μg.
MCE Validation Data
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Purity - SDS-PAGE
Purity - SDS-PAGE
Assay Procedure
Materials
Assay buffer: 12.5 mM Tris, 75 mM NaCl, pH 7.5
Test protein: Carbonic Anhydrase 1 Protein, Human (His) (HY-P7718A)
Substrate: 4-Nitrophenylacetate (4-NPA), prepared as a 20 mM stock solution in ethanol
Procedure
1. Dilute Human CA1 to 100 ng/μL in assay buffer.
2. Dilute substrate to 2 mM in assay buffer.
3. Add 50 μL of 100 ng/μL Human CA1 to the well plate, followed by 50 μL of 2 mM substrate to initiate the reaction. Perform triplicate wells.
4. Include a substrate blank containing 50 μL assay buffer and 50 μL substrate. Perform triplicate wells.
5. Read at 400 nm wavelength for 5 minutes in kinetic mode.
6. Calculate specific activity:
Specific Activity (pmol/min/μg) = | Adjusted Vmax* (OD/min) x Conversion Factor ** (pmol/OD) |
| amount of enzyme (μg) |
*Adjusted for Control
**Derived using calibration standard
Technical Parameters
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Species Human
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Source E. coli
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Tag C-6*His
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Accession
P00915 (A2-F261)
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Molecular Construction
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N-term
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CA1 (S2-F261)
Accession # P00915 -
6*His
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C-term
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Protein Length
Full Length
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Synonyms
CA1; CA-I; Carbonic Anhydrase 1; CAB; Carbonic Anhydrase I; Epididymis Secretory Sperm Binding Protein; Cyanamide Hydratase CA1; Epididymis Secretory Protein Li 11; Carbonate Dehydratase I; Carbonic Anhydrase; Car1; HEL-S-11; Carbonic Anhydrase B
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AA Sequence
ASPDWGYDDKNGPEQWSKLYPIANGNNQSPVDIKTSETKHDTSLKPISVSYNPATAKEIINVGHSFHVNFEDNDNRSVLKGGPFSDSYRLFQFHFHWGSTNEHGSEHTVDGVKYSAELHVAHWNSAKYSSLAEAASKADGLAVIGVLMKVGEANPKLQKVLDALQAIKTKGKRAPFTNFDPSTLLPSSLDFWTYPGSLTHPPLYESVTWIICKESISVSSEQLAQFRSLLSNVEGDNAVPMQHNNRPTQPLKGRTVRASF
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Predicted Molecular Mass
29.9 kDa
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Molecular Weight
Approximately 25-35 kDa, based on SDS-PAGE under reducing conditions.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Solution
Supplied as a 0.22 μm filter solution of 12.5 mM Tris-HCl, 75 mM NaCl, pH 7.5.
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.
Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Shipping with dry ice.
Documentation
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Data Sheet (261 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)