4.1.1.65: phosphatidylserine decarboxylase
This is an abbreviated version!
For detailed information about phosphatidylserine decarboxylase, go to the full flat file.
Word Map on EC 4.1.1.65
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4.1.1.65
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phospholipid
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phosphatidylcholine
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kennedy
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cdp-ethanolamine
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decarboxylases
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3hserine
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ptdetn
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cdp-diacylglycerol
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phosphatidylglycerophosphate
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dowhan
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spinothalamic
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base-exchange
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aminophospholipids
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interorganelle
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cdp-diglyceride
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medicine
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analysis
- 4.1.1.65
- phospholipid
- phosphatidylcholine
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kennedy
- cdp-ethanolamine
- decarboxylases
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3hserine
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ptdetn
- cdp-diacylglycerol
- phosphatidylglycerophosphate
-
dowhan
-
spinothalamic
-
base-exchange
-
aminophospholipids
-
interorganelle
- cdp-diglyceride
- medicine
- analysis
Reaction
Synonyms
CT699, Decarboxylase, phosphatidylserine, phosphatidyl serine decarboxylase, Phosphatidylserine decarboxylase, phosphatidylserine decarboxylase 1, phosphatidylserine decarboxylase 2, phosphatidylserine decarboxylase2, PISD, PKH_072580, PS decarboxylase, PSD, PSD1, Psd1 enzyme, Psd1p, PSD2, Psd2p, PSD3, PSDC, Tb927.9.10080, type I PtdSer decarboxylase
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Localization
Localization on EC 4.1.1.65 - phosphatidylserine decarboxylase
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high activity in cytoplasmic membrane and low activity in outer membrane of the cell envelope
PSD is catalytically active in both soluble and membrane fractions, with a membrane/soluble distribution of 3/1
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the enzyme is equally distributed between membrane and soluble fractions
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phosphatidylserine flows from the outer membrane to the inner membrane through contact sites between inner and outer membrane to become decarboxylated and the formed phosphatidylethanolamine flows directly back to the outer membrane, without mixing with inner membrane phosphatidylamine
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inner mitochondrial membrane and Golgi/vacuole membrane
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high activity in cytoplasmic membrane and low activity in outer membrane of the cell envelope
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exclusively in the inner mitochondrial membrane
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exclusively in the inner mitochondrial membrane
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the enzyme requires integration into the inner mitochondrial membrane for full enzymatic activity
anchored to the inner mitochondrial membrane
autocatalytic processing in the mitochondrion
the 56 kDa precursor is processed upon import into mitochondria, leading to a 4 kDa alpha-subunit and a 47 kDa beta-subunit. Mutations in the conserved motif of the alpha-subunit affect processing and stability of Psd1, and consequently the enzyme's activity
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the enzyme requires integration into the inner mitochondrial membrane for full enzymatic activity
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PSD is catalytically active in both soluble and membrane fractions, with a membrane/soluble distribution of 3/1
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the enzyme is equally distributed between membrane and soluble fractions
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