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UniProtKB - Q8VWZ7 (C76B6_CATRO)
Protein
Geraniol 8-hydroxylase
Gene
CYP76B6
Organism
Catharanthus roseus (Madagascar periwinkle) (Vinca rosea)
Status
Functioni
Hydroxylase involved in the biosynthesis of hydroxygeraniol, a precursor of the terpenoid indole alkaloids such as vinblastine and vincristine. Also able to hydroxylate in vitro nerol and to catalyze 3'-hydroxylation of the flavanone naringenin to form eriodictyol. No activity with apigenin, kaempferol, p-coumaric acid and ferulic acid as substrates.
3 PublicationsMiscellaneous
The recommended numbering of geraniol gives (6E)-8-hydroxygeraniol as the product rather than 10-hydroxygeraniol as used in most publications.
Catalytic activityi
- (2E)-geraniol + O2 + reduced [NADPH—hemoprotein reductase] = (6E)-8-hydroxygeraniol + H+ + H2O + oxidized [NADPH—hemoprotein reductase]2 PublicationsEC:1.14.14.832 Publications
Cofactori
hemeBy similarity
Kineticsi
kcat is 3.15 min(-1) for naringenin. kcat is 7.86 min(-1) for geraniol.
- KM=15.81 µM for geraniol1 Publication
- KM=58.39 µM for naringenin1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 436 | Iron (heme axial ligand)By similarity | 1 |
GO - Molecular functioni
- geraniol 10-hydroxylase activity Source: UniProtKB-EC
- heme binding Source: InterPro
- iron ion binding Source: InterPro
- oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen Source: UniProtKB
GO - Biological processi
- monoterpenoid biosynthetic process Source: UniProtKB
Keywordsi
Molecular function | Monooxygenase, Oxidoreductase |
Ligand | Heme, Iron, Metal-binding, NADP |
Enzyme and pathway databases
BRENDAi | 1.14.14.83, 1211 |
Names & Taxonomyi
Protein namesi | Recommended name: Geraniol 8-hydroxylase (EC:1.14.14.832 Publications)Alternative name(s): Cytochrome P450 76B6 Geraniol 10-hydroxylase Short name: CrG10H |
Gene namesi | Name:CYP76B6 Synonyms:G10H |
Organismi | Catharanthus roseus (Madagascar periwinkle) (Vinca rosea) |
Taxonomic identifieri | 4058 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › asterids › lamiids › Gentianales › Apocynaceae › Rauvolfioideae › Vinceae › Catharanthinae › Catharanthus |
Subcellular locationi
Endoplasmic reticulum
- Endoplasmic reticulum membrane 1 Publication; Single-pass membrane protein 1 Publication
Note: The N-terminal transmembrane helix is necessary and sufficient for endoplasmic reticulum targeting.
Endoplasmic reticulum
- endoplasmic reticulum membrane Source: UniProtKB-SubCell
Other locations
- integral component of membrane Source: UniProtKB-KW
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 6 | LumenalSequence analysis | 6 | |
Transmembranei | 7 – 23 | HelicalSequence analysisAdd BLAST | 17 | |
Topological domaini | 24 – 493 | CytoplasmicSequence analysisAdd BLAST | 470 |
Keywords - Cellular componenti
Endoplasmic reticulum, MembranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000418919 | 1 – 493 | Geraniol 8-hydroxylaseAdd BLAST | 493 |
Expressioni
Tissue specificityi
Expressed in roots, stems, leaves and flower buds. Hardly detected in mature flowers and fruits. Expressed in the internal phloem-associated parenchyma.1 Publication
Inductioni
Up-regulated by methyl jasmonate treatment.1 Publication
Family & Domainsi
Sequence similaritiesi
Belongs to the cytochrome P450 family.Curated
Keywords - Domaini
Transmembrane, Transmembrane helixFamily and domain databases
Gene3Di | 1.10.630.10, 1 hit |
InterProi | View protein in InterPro IPR001128, Cyt_P450 IPR017972, Cyt_P450_CS IPR002401, Cyt_P450_E_grp-I IPR036396, Cyt_P450_sf |
Pfami | View protein in Pfam PF00067, p450, 1 hit |
PRINTSi | PR00463, EP450I PR00385, P450 |
SUPFAMi | SSF48264, SSF48264, 1 hit |
PROSITEi | View protein in PROSITE PS00086, CYTOCHROME_P450, 1 hit |
i Sequence
Sequence statusi: Complete.
Q8VWZ7-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MDYLTIILTL LFALTLYEAF SYLSRRTKNL PPGPSPLPFI GSLHLLGDQP
60 70 80 90 100
HKSLAKLSKK HGPIMSLKLG QITTIVISSS TMAKEVLQKQ DLAFSSRSVP
110 120 130 140 150
NALHAHNQFK FSVVWLPVAS RWRSLRKVLN SNIFSGNRLD ANQHLRTRKV
160 170 180 190 200
QELIAYCRKN SQSGEAVDVG RAAFRTSLNL LSNLIFSKDL TDPYSDSAKE
210 220 230 240 250
FKDLVWNIMV EAGKPNLVDF FPLLEKVDPQ GIRHRMTIHF GEVLKLFGGL
260 270 280 290 300
VNERLEQRRS KGEKNDVLDV LLTTSQESPE EIDRTHIERM CLDLFVAGTD
310 320 330 340 350
TTSSTLEWAM SEMLKNPDKM KKTQDELAQV IGRGKTIEES DINRLPYLRC
360 370 380 390 400
VMKETLRIHP PVPFLIPRKV EQSVEVCGYN VPKGSQVLVN AWAIGRDETV
410 420 430 440 450
WDDALAFKPE RFMESELDIR GRDFELIPFG AGRRICPGLP LALRTVPLML
460 470 480 490
GSLLNSFNWK LEGGMAPKDL DMEEKFGITL QKAHPLRAVP STL
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ251269 mRNA Translation: CAC80883.1 |
Genome annotation databases
KEGGi | ag:CAC80883 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ251269 mRNA Translation: CAC80883.1 |
3D structure databases
SMRi | Q8VWZ7 |
ModBasei | Search... |
Genome annotation databases
KEGGi | ag:CAC80883 |
Enzyme and pathway databases
BRENDAi | 1.14.14.83, 1211 |
Family and domain databases
Gene3Di | 1.10.630.10, 1 hit |
InterProi | View protein in InterPro IPR001128, Cyt_P450 IPR017972, Cyt_P450_CS IPR002401, Cyt_P450_E_grp-I IPR036396, Cyt_P450_sf |
Pfami | View protein in Pfam PF00067, p450, 1 hit |
PRINTSi | PR00463, EP450I PR00385, P450 |
SUPFAMi | SSF48264, SSF48264, 1 hit |
PROSITEi | View protein in PROSITE PS00086, CYTOCHROME_P450, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | C76B6_CATRO | |
Accessioni | Q8VWZ7Primary (citable) accession number: Q8VWZ7 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 5, 2012 |
Last sequence update: | March 1, 2002 | |
Last modified: | February 23, 2022 | |
This is version 93 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencingDocuments
- SIMILARITY comments
Index of protein domains and families