MIBS_SACEN
ID MIBS_SACEN Reviewed; 354 AA.
AC A4FG19;
DT 11-JAN-2011, integrated into UniProtKB/Swiss-Prot.
DT 17-APR-2007, sequence version 1.
DT 03-AUG-2022, entry version 73.
DE RecName: Full=2-methylisoborneol synthase;
DE Short=2-MIB synthase;
DE EC=4.2.3.118;
GN OrderedLocusNames=SACE_3722;
OS Saccharopolyspora erythraea (strain ATCC 11635 / DSM 40517 / JCM 4748 /
OS NBRC 13426 / NCIMB 8594 / NRRL 2338).
OC Bacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae;
OC Saccharopolyspora.
OX NCBI_TaxID=405948;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 11635 / DSM 40517 / JCM 4748 / NBRC 13426 / NCIMB 8594 / NRRL
RC 2338;
RX PubMed=17369815; DOI=10.1038/nbt1297;
RA Oliynyk M., Samborskyy M., Lester J.B., Mironenko T., Scott N., Dickens S.,
RA Haydock S.F., Leadlay P.F.;
RT "Complete genome sequence of the erythromycin-producing bacterium
RT Saccharopolyspora erythraea NRRL23338.";
RL Nat. Biotechnol. 25:447-453(2007).
RN [2]
RP FUNCTION IN 2-METHYLISOBORNEOL BIOSYNTHESIS, AND PATHWAY.
RX PubMed=18492804; DOI=10.1073/pnas.0802312105;
RA Komatsu M., Tsuda M., Omura S., Oikawa H., Ikeda H.;
RT "Identification and functional analysis of genes controlling biosynthesis
RT of 2-methylisoborneol.";
RL Proc. Natl. Acad. Sci. U.S.A. 105:7422-7427(2008).
CC -!- FUNCTION: Catalyzes the cyclization of 2-methylgeranyl diphosphate (2-
CC MeGPP) to 2-methylisoborneol (2-MIB), which likely involves the
CC intermediacy of 2-methyllinalyl diphosphate.
CC {ECO:0000305|PubMed:18492804}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(E)-2-methylgeranyl diphosphate + H2O = 2-methylisoborneol +
CC diphosphate; Xref=Rhea:RHEA:32571, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:61984, ChEBI:CHEBI:61987;
CC EC=4.2.3.118;
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC -!- MISCELLANEOUS: 2-MIB is a volatile organic compound that has an
CC unusually low odor threshold. Together with geosmin, methylisoborneol
CC is responsible for the characteristic smell of moist soil as well as
CC unpleasant taste and odor episodes associated with public water
CC supplies and contamination of various foodstuffs, including fish, wine,
CC and beer.
CC -!- SIMILARITY: Belongs to the terpene synthase family. 2-methylisoborneol
CC synthase subfamily. {ECO:0000305}.
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DR EMBL; AM420293; CAM02994.1; -; Genomic_DNA.
DR RefSeq; WP_011874125.1; NZ_PDBV01000001.1.
DR AlphaFoldDB; A4FG19; -.
DR SMR; A4FG19; -.
DR STRING; 405948.SACE_3722; -.
DR EnsemblBacteria; CAM02994; CAM02994; SACE_3722.
DR KEGG; sen:SACE_3722; -.
DR eggNOG; COG3170; Bacteria.
DR HOGENOM; CLU_047127_0_0_11; -.
DR OMA; VDGNHHW; -.
DR OrthoDB; 1869158at2; -.
DR Proteomes; UP000006728; Chromosome.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0010333; F:terpene synthase activity; ISS:UniProtKB.
DR GO; GO:0042214; P:terpene metabolic process; IDA:UniProtKB.
DR Gene3D; 1.10.600.10; -; 1.
DR InterPro; IPR008949; Isoprenoid_synthase_dom_sf.
DR InterPro; IPR034686; Terpene_cyclase-like_2.
DR SFLD; SFLDG01020; Terpene_Cyclase_Like_2; 1.
DR SUPFAM; SSF48576; SSF48576; 1.
PE 1: Evidence at protein level;
KW Lyase; Magnesium; Metal-binding; Reference proteome.
FT CHAIN 1..354
FT /note="2-methylisoborneol synthase"
FT /id="PRO_0000403383"
FT REGION 1..29
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 9..23
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 113
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
FT BINDING 114
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
FT BINDING 118
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
FT BINDING 264
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
FT BINDING 268
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
FT BINDING 272
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250"
SQ SEQUENCE 354 AA; 39136 MW; 27D53B700D9AFCAC CRC64;
MIELIGHETP VPSQQQHTGG VRGTSACTPP GVGERTTVLY CPPPPPERPE VAAEINRRVV
VWMQGLGLGG EDNVAGVYKH DPGRGITLCH PGSQDVERMT AAGKMIVAET AVDDYFCETN
SRRDANDQTI GPNLSLAQSA IDAPRLTPDL QALWNKCRDD HPVLRAQHEA FGDLERISSP
AQAQRVRHDI AQLYLGYNAE NGWRLLNRLP PVWQYLANRQ MNSFRPCLNL TDALDGYELA
PQLYAHPLVQ DCTARATLIA TLYNDLASCE REIREHGLPF NLPAVIAAEE RIALDEAFVR
ACEIHNELIQ ALEEATGHAA SALADPALSR YLTGLWSWLA GSRHWHFTTA RHRA