terpene synthase 03 [Arabidopsis thaliana]
Protein Classification
isoprenoid biosynthesis enzyme family protein( domain architecture ID 89)
isoprenoid biosynthesis enzyme family protein
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||
| Isoprenoid_Biosyn_C1 super family | cl00210 | Isoprenoid Biosynthesis enzymes, Class 1; Superfamily of trans-isoprenyl diphosphate synthases ... |
26-340 | 4.42e-138 | ||||||
Isoprenoid Biosynthesis enzymes, Class 1; Superfamily of trans-isoprenyl diphosphate synthases (IPPS) and class I terpene cyclases which either synthesis geranyl/farnesyl diphosphates (GPP/FPP) or longer chained products from isoprene precursors, isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP), or use geranyl (C10)-, farnesyl (C15)-, or geranylgeranyl (C20)-diphosphate as substrate. These enzymes produce a myriad of precursors for such end products as steroids, cholesterol, sesquiterpenes, heme, carotenoids, retinoids, and diterpenes; and are widely distributed among archaea, bacteria, and eukaryota.The enzymes in this superfamily share the same 'isoprenoid synthase fold' and include several subgroups. The head-to-tail (HT) IPPS catalyze the successive 1'-4 condensation of the 5-carbon IPP to the growing isoprene chain to form linear, all-trans, C10-, C15-, C20- C25-, C30-, C35-, C40-, C45-, or C50-isoprenoid diphosphates. Cyclic monoterpenes, diterpenes, and sesquiterpenes, are formed from their respective linear isoprenoid diphosphates by class I terpene cyclases. The head-to-head (HH) IPPS catalyze the successive 1'-1 condensation of 2 farnesyl or 2 geranylgeranyl isoprenoid diphosphates. Cyclization of these 30- and 40-carbon linear forms are catalyzed by class II cyclases. Both the isoprenoid chain elongation reactions and the class I terpene cyclization reactions proceed via electrophilic alkylations in which a new carbon-carbon single bond is generated through interaction between a highly reactive electron-deficient allylic carbocation and an electron-rich carbon-carbon double bond. The catalytic site consists of a large central cavity formed by mostly antiparallel alpha helices with two aspartate-rich regions located on opposite walls. These residues mediate binding of prenyl phosphates via bridging Mg2+ ions, inducing proposed conformational changes that close the active site to solvent, stabilizing reactive carbocation intermediates. Generally, the enzymes in this family exhibit an all-trans reaction pathway, an exception, is the cis-trans terpene cyclase, trichodiene synthase. Mechanistically and structurally distinct, class II terpene cyclases and cis-IPPS are not included in this CD. The actual alignment was detected with superfamily member cd00684: Pssm-ID: 469660 [Multi-domain] Cd Length: 542 Bit Score: 403.88 E-value: 4.42e-138
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| Name | Accession | Description | Interval | E-value | ||||||
| Terpene_cyclase_plant_C1 | cd00684 | Plant Terpene Cyclases, Class 1; This CD includes a diverse group of monomeric plant terpene ... |
26-340 | 4.42e-138 | ||||||
Plant Terpene Cyclases, Class 1; This CD includes a diverse group of monomeric plant terpene cyclases (Tspa-Tspf) that convert the acyclic isoprenoid diphosphates, geranyl diphosphate (GPP), farnesyl diphosphate (FPP), or geranylgeranyl diphosphate (GGPP) into cyclic monoterpenes, diterpenes, or sesquiterpenes, respectively; a few form acyclic species. Terpnoid cyclases are soluble enzymes localized to the cytosol (sesquiterpene synthases) or plastids (mono- and diterpene synthases). All monoterpene and diterpene synthases have restrict substrate specificity, however, some sesquiterpene synthases can accept both FPP and GPP. The catalytic site consists of a large central cavity formed by mostly antiparallel alpha helices with two aspartate-rich regions located on opposite walls. These residues mediate binding of prenyl diphosphates, via bridging Mg2+ ions (K+ preferred by gymnosperm cyclases), inducing conformational changes such that an N-terminal region forms a cap over the catalytic core. Loss of diphosphate from the enzyme-bound substrate (GPP, FPP, or GGPP) results in an allylic carbocation that electrophilically attacks a double bond further down the terpene chain to effect the first ring closure. Unlike monoterpene, sesquiterene, and macrocyclic diterpenes synthases, which undergo substrate ionization by diphosphate ester scission, Tpsc-like diterpene synthases catalyze cyclization reactions by an initial protonation step producing a copalyl diphosphate intermediate. These enzymes lack the aspartate-rich sequences mentioned above. Most diterpene synthases have an N-terminal, internal element (approx 210 aa) whose function is unknown. Pssm-ID: 173832 [Multi-domain] Cd Length: 542 Bit Score: 403.88 E-value: 4.42e-138
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| Terpene_synth | pfam01397 | Terpene synthase, N-terminal domain; It has been suggested that this gene family be designated ... |
35-214 | 2.24e-54 | ||||||
Terpene synthase, N-terminal domain; It has been suggested that this gene family be designated tps (for terpene synthase). It has been split into six subgroups on the basis of phylogeny, called tpsa-tpsf. tpsa includes vetispiridiene synthase, 5-epi- aristolochene synthase, and (+)-delta-cadinene synthase. tpsb includes (-)-limonene synthase. tpsc includes kaurene synthase A. tpsd includes taxadiene synthase, pinene synthase and myrcene synthase. tpse includes kaurene synthase B. tpsf includes linalool synthase. Pssm-ID: 460194 [Multi-domain] Cd Length: 190 Bit Score: 177.40 E-value: 2.24e-54
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| PLN02592 | PLN02592 | ent-copalyl diphosphate synthase |
74-324 | 7.76e-30 | ||||||
ent-copalyl diphosphate synthase Pssm-ID: 215321 [Multi-domain] Cd Length: 800 Bit Score: 121.13 E-value: 7.76e-30
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| Name | Accession | Description | Interval | E-value | ||||||
| Terpene_cyclase_plant_C1 | cd00684 | Plant Terpene Cyclases, Class 1; This CD includes a diverse group of monomeric plant terpene ... |
26-340 | 4.42e-138 | ||||||
Plant Terpene Cyclases, Class 1; This CD includes a diverse group of monomeric plant terpene cyclases (Tspa-Tspf) that convert the acyclic isoprenoid diphosphates, geranyl diphosphate (GPP), farnesyl diphosphate (FPP), or geranylgeranyl diphosphate (GGPP) into cyclic monoterpenes, diterpenes, or sesquiterpenes, respectively; a few form acyclic species. Terpnoid cyclases are soluble enzymes localized to the cytosol (sesquiterpene synthases) or plastids (mono- and diterpene synthases). All monoterpene and diterpene synthases have restrict substrate specificity, however, some sesquiterpene synthases can accept both FPP and GPP. The catalytic site consists of a large central cavity formed by mostly antiparallel alpha helices with two aspartate-rich regions located on opposite walls. These residues mediate binding of prenyl diphosphates, via bridging Mg2+ ions (K+ preferred by gymnosperm cyclases), inducing conformational changes such that an N-terminal region forms a cap over the catalytic core. Loss of diphosphate from the enzyme-bound substrate (GPP, FPP, or GGPP) results in an allylic carbocation that electrophilically attacks a double bond further down the terpene chain to effect the first ring closure. Unlike monoterpene, sesquiterene, and macrocyclic diterpenes synthases, which undergo substrate ionization by diphosphate ester scission, Tpsc-like diterpene synthases catalyze cyclization reactions by an initial protonation step producing a copalyl diphosphate intermediate. These enzymes lack the aspartate-rich sequences mentioned above. Most diterpene synthases have an N-terminal, internal element (approx 210 aa) whose function is unknown. Pssm-ID: 173832 [Multi-domain] Cd Length: 542 Bit Score: 403.88 E-value: 4.42e-138
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| Terpene_synth | pfam01397 | Terpene synthase, N-terminal domain; It has been suggested that this gene family be designated ... |
35-214 | 2.24e-54 | ||||||
Terpene synthase, N-terminal domain; It has been suggested that this gene family be designated tps (for terpene synthase). It has been split into six subgroups on the basis of phylogeny, called tpsa-tpsf. tpsa includes vetispiridiene synthase, 5-epi- aristolochene synthase, and (+)-delta-cadinene synthase. tpsb includes (-)-limonene synthase. tpsc includes kaurene synthase A. tpsd includes taxadiene synthase, pinene synthase and myrcene synthase. tpse includes kaurene synthase B. tpsf includes linalool synthase. Pssm-ID: 460194 [Multi-domain] Cd Length: 190 Bit Score: 177.40 E-value: 2.24e-54
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| Terpene_synth_C | pfam03936 | Terpene synthase family, metal binding domain; It has been suggested that this gene family be ... |
245-341 | 3.00e-49 | ||||||
Terpene synthase family, metal binding domain; It has been suggested that this gene family be designated tps (for terpene synthase). It has been split into six subgroups on the basis of phylogeny, called tpsa-tpsf. tpsa includes vetispiridiene synthase, 5-epi- aristolochene synthase, and (+)-delta-cadinene synthase. tpsb includes (-)-limonene synthase. tpsc includes kaurene synthase A. tpsd includes taxadiene synthase, pinene synthase, and myrcene synthase. tpse includes kaurene synthase B. tpsf includes linalool synthase. Pssm-ID: 461096 [Multi-domain] Cd Length: 266 Bit Score: 166.54 E-value: 3.00e-49
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| PLN02592 | PLN02592 | ent-copalyl diphosphate synthase |
74-324 | 7.76e-30 | ||||||
ent-copalyl diphosphate synthase Pssm-ID: 215321 [Multi-domain] Cd Length: 800 Bit Score: 121.13 E-value: 7.76e-30
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| Terpene_cyclase_C1 | cd00868 | Terpene cyclases, Class 1; Terpene cyclases, Class 1 (C1) of the class 1 family of isoprenoid ... |
258-341 | 2.87e-28 | ||||||
Terpene cyclases, Class 1; Terpene cyclases, Class 1 (C1) of the class 1 family of isoprenoid biosynthesis enzymes, which share the 'isoprenoid synthase fold' and convert linear, all-trans, isoprenoids, geranyl (C10)-, farnesyl (C15)-, or geranylgeranyl (C20)-diphosphate into numerous cyclic forms of monoterpenes, diterpenes, and sesquiterpenes. Also included in this CD are the cis-trans terpene cyclases such as trichodiene synthase. The class I terpene cyclization reactions proceed via electrophilic alkylations in which a new carbon-carbon single bond is generated through interaction between a highly reactive electron-deficient allylic carbocation and an electron-rich carbon-carbon double bond. The catalytic site consists of a large central cavity formed by mostly antiparallel alpha helices with two aspartate-rich regions located on opposite walls. These residues mediate binding of prenyl phosphates via bridging Mg2+ ions, inducing proposed conformational changes that close the active site to solvent, stabilizing reactive carbocation intermediates. Mechanistically and structurally distinct, class II terpene cyclases and cis-IPPS are not included in this CD. Taxonomic distribution includes bacteria, fungi and plants. Pssm-ID: 173837 [Multi-domain] Cd Length: 284 Bit Score: 111.69 E-value: 2.87e-28
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| PLN02279 | PLN02279 | ent-kaur-16-ene synthase |
77-341 | 2.94e-28 | ||||||
ent-kaur-16-ene synthase Pssm-ID: 177918 [Multi-domain] Cd Length: 784 Bit Score: 116.53 E-value: 2.94e-28
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| Isoprenoid_Biosyn_C1 | cd00385 | Isoprenoid Biosynthesis enzymes, Class 1; Superfamily of trans-isoprenyl diphosphate synthases ... |
291-340 | 6.54e-06 | ||||||
Isoprenoid Biosynthesis enzymes, Class 1; Superfamily of trans-isoprenyl diphosphate synthases (IPPS) and class I terpene cyclases which either synthesis geranyl/farnesyl diphosphates (GPP/FPP) or longer chained products from isoprene precursors, isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP), or use geranyl (C10)-, farnesyl (C15)-, or geranylgeranyl (C20)-diphosphate as substrate. These enzymes produce a myriad of precursors for such end products as steroids, cholesterol, sesquiterpenes, heme, carotenoids, retinoids, and diterpenes; and are widely distributed among archaea, bacteria, and eukaryota.The enzymes in this superfamily share the same 'isoprenoid synthase fold' and include several subgroups. The head-to-tail (HT) IPPS catalyze the successive 1'-4 condensation of the 5-carbon IPP to the growing isoprene chain to form linear, all-trans, C10-, C15-, C20- C25-, C30-, C35-, C40-, C45-, or C50-isoprenoid diphosphates. Cyclic monoterpenes, diterpenes, and sesquiterpenes, are formed from their respective linear isoprenoid diphosphates by class I terpene cyclases. The head-to-head (HH) IPPS catalyze the successive 1'-1 condensation of 2 farnesyl or 2 geranylgeranyl isoprenoid diphosphates. Cyclization of these 30- and 40-carbon linear forms are catalyzed by class II cyclases. Both the isoprenoid chain elongation reactions and the class I terpene cyclization reactions proceed via electrophilic alkylations in which a new carbon-carbon single bond is generated through interaction between a highly reactive electron-deficient allylic carbocation and an electron-rich carbon-carbon double bond. The catalytic site consists of a large central cavity formed by mostly antiparallel alpha helices with two aspartate-rich regions located on opposite walls. These residues mediate binding of prenyl phosphates via bridging Mg2+ ions, inducing proposed conformational changes that close the active site to solvent, stabilizing reactive carbocation intermediates. Generally, the enzymes in this family exhibit an all-trans reaction pathway, an exception, is the cis-trans terpene cyclase, trichodiene synthase. Mechanistically and structurally distinct, class II terpene cyclases and cis-IPPS are not included in this CD. Pssm-ID: 173830 [Multi-domain] Cd Length: 243 Bit Score: 47.10 E-value: 6.54e-06
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| Terpene_syn_C_2 | pfam19086 | Terpene synthase family 2, C-terminal metal binding; |
311-342 | 5.19e-05 | ||||||
Terpene synthase family 2, C-terminal metal binding; Pssm-ID: 465972 [Multi-domain] Cd Length: 199 Bit Score: 43.74 E-value: 5.19e-05
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