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Metabolism of 1-Aminocyclopropane-1-carboxylic Acid
Open accessAbstract
Several microorganisms capable of utilizing 1-aminocyclopropane-1-carboxylate (ACPC) were isolated from soil. A bacterium which belongs to Pseudomonas accumulated cellular α-aminobutyrate with consumption of ACPC and cells incubated with ACPC medium had the activity deaminating the substrate to form α-ketobutyrate. An enzyme, ACPC deaminase, was highly purified and its molecular weight, substrate specificity and absorption spectrum were investigated. These results suggested that this enzyme was a pyridoxal 5′-phosphate enzyme which has the molecular weight of 104000 and high specificity for ACPC, Km= 1.5 mM. A yeast, Hansenula saturnus, is also capable of forming ACPC deaminase, which has a lower molecular weight, 69000, and higher Km value, 2.6 mM.
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Metadata
- Authors
- Honma, M., & Shimomura, T.
- Affiliations
- Hokkaido University (JP)
- Venue
- Agricultural and Biological Chemistry
- Publisher
- Oxford University Press (OUP)
- Published
- 1978-10
- Volume
- 42
- Issue
- 10
- Pages
- 1825-1831
- ISSN
- 0002-1369 (ISSN-L)
- OpenAlex
- W2029560481
- Cited by
- 695
- References
- 0
- Citations by year
- 2026: 6 · 2025: 27 · 2024: 31 · 2023: 43 · 2022: 45 · 2021: 51 · 2020: 46 · 2019: 51 · 2018: 33 · 2017: 33 · 2016: 33 · 2015: 34 · 2014: 22 · 2013: 22 · 2012: 17
- FWCI
- 0.18
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Agricultural and Biological Chemistry (publishedVersion)
- Funders
- Hokkaido University
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Polyamine Metabolism and Applications
- Keywords
- 1-aminocyclopropane-1-carboxylic acid, enzyme purification, pyridoxal phosphate-dependent enzymes, Pseudomonas, alpha-ketobutyrate, substrate specificity, soil microbes, enzyme kinetics
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