1.14.19.22: acyl-lipid omega-6 desaturase (cytochrome b5) This is an abbreviated version! For detailed information about acyl-lipid omega-6 desaturase (cytochrome b5), go to the full flat file .
Reaction
an oleoyl-[glycerolipid] +
2 ferrocytochrome b5
+
O2 +
2 H+
=
a linoleoyl-[glycerolipid] +
2 ferricytochrome b5
+
2 H2O
Synonyms 1-acyl-2-oleoyl-sn-glycero-3-phosphocholine DELTA12-desaturase, 1-acyl-2-oleoyl-sn-glycero-3-phosphocholine DELTAl2-desaturase, 18:1-phosphatidylcholine desaturase, acyl-lipid DELTA12-desaturase, BrFAD2-1, CeFAT-2, CtFAD2-1, delta 12 fatty acid desaturase, delta-12 fatty acid desaturase 2, Delta-12 oleate desaturase, delta-twelve fatty acid desaturase 2, DELTA12 desaturase, DELTA12-desaturase, DELTA12-fatty acid desaturase, DELTA12-oleoyl-phosphatidylcholine desaturase, desaturase, oleate, DiFAD2, EC 1.3.1.35, endoplasmic reticulum-localized oleate desaturase, FAD2, FAD2-1, FAD2-1A, FAD2-1B, FAD2-2, FAD2-3, FAD2-4, FAD2A, FAD6, linoleate synthase, LKFAD15, microsomal oleate desaturase, microsomal oleic acid desaturase, microsomal omega-6 fatty acid desaturase, oleate desaturase, oleoyl phosphatidylcholine desaturase, oleoyl-CoA desaturase, oleoyl-PC desaturase, oleoyl-phosphatidylcholine desaturase, oleoylphosphatidylcholine desaturase, omega-6 desaturase, omega-6 fatty acid desaturase, omega-6-oleate desaturase, omega6-fatty acid desaturase, OsFAD2, plastidial oleate desaturase, seed-specific delta-12 fatty acid desaturase 2, SVE1, TauDELTA12des
ECTree
Source Tissue
Source Tissue on EC 1.14.19.22 - acyl-lipid omega-6 desaturase (cytochrome b5)
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detached, fast and dramatic increase or decrease in the level of enzyme activity in response to a temperature change from 30°C to 10°C, or from 10°C to 30°C
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young drupe
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accumulates in leaf mesophyll cells when exposed to 15°C for 4 days in dark conditions
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altered levels of polyunsaturated fatty acids in leaves treated with cold stress have no direct correlation with the expression of enzyme isoforms FAD2-3 and FAD2-2
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accumulates in root epidermis cells when exposed to 15°C for 4 days in dark conditions
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seed-specific delta-12 fatty acid desaturase 2
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expressed in developing seed
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highest expression in developping seeds
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specifically expressed in seeds
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peeled, a change of temperature from 10°C to 30°C brings about a significant decrease of enzyme activity. When the temperature shifts from 30°C to 10°C, the enzyme activity only increases slightly
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seed-specific delta-12 fatty acid desaturase 2
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seed-specific delta-12 fatty acid desaturase 2
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seed-specific delta-12 fatty acid desaturase 2
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seed-specific delta-12 fatty acid desaturase 2
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seed-specific delta-12 fatty acid desaturase 2
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additional information
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BrFAD2-1 is ubiquitously expressed
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enzyme is ubiquitously expressed
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enzyme is ubiquitously expressed
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constitutive expression in both vegetative tissues and developing seeds
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constitutive expression in both vegetative tissues and developing seeds
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not found in stem, leaf, cotyledon, root and embryo
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additional information
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not found in stem, leaf, cotyledon, root and embryo
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additional information
enzyme expression in all tissues tested, higher levels of RNA accumulation in reproductive organs and cells that proliferate rapidly or store lipids
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