ISPG_THETH
ID ISPG_THETH Reviewed; 406 AA.
AC Q84GJ3;
DT 19-JUL-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) {ECO:0000255|HAMAP-Rule:MF_00159};
DE EC=1.17.7.3 {ECO:0000255|HAMAP-Rule:MF_00159, ECO:0000269|PubMed:12482607};
DE AltName: Full=1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase {ECO:0000255|HAMAP-Rule:MF_00159};
GN Name=ispG {ECO:0000255|HAMAP-Rule:MF_00159}; Synonyms=gcpE;
OS Thermus thermophilus.
OC Bacteria; Deinococcus-Thermus; Deinococci; Thermales; Thermaceae; Thermus.
OX NCBI_TaxID=274;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], CATALYTIC ACTIVITY, AND IRON-SULFUR
RP CLUSTER.
RX PubMed=12482607; DOI=10.1016/s0014-5793(02)03725-0;
RA Kollas A.-K., Duin E.C., Eberl M., Altincicek B., Hintz M., Reichenberg A.,
RA Henschker D., Henne A., Steinbrecher I., Ostrovsky D.N., Hedderich R.,
RA Beck E., Jomaa H., Wiesner J.;
RT "Functional characterization of GcpE, an essential enzyme of the non-
RT mevalonate pathway of isoprenoid biosynthesis.";
RL FEBS Lett. 532:432-436(2002).
CC -!- FUNCTION: Converts 2C-methyl-D-erythritol 2,4-cyclodiphosphate (ME-
CC 2,4cPP) into 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate.
CC {ECO:0000255|HAMAP-Rule:MF_00159, ECO:0000269|PubMed:12482607}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2E)-4-hydroxy-3-methylbut-2-enyl diphosphate + 2 H(+) + H2O +
CC oxidized [flavodoxin] = 2-C-methyl-D-erythritol 2,4-cyclic
CC diphosphate + reduced [flavodoxin]; Xref=Rhea:RHEA:43604, Rhea:RHEA-
CC COMP:10622, Rhea:RHEA-COMP:10623, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57618, ChEBI:CHEBI:58210,
CC ChEBI:CHEBI:58483, ChEBI:CHEBI:128753; EC=1.17.7.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00159,
CC ECO:0000269|PubMed:12482607};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00159,
CC ECO:0000269|PubMed:12482607};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000255|HAMAP-Rule:MF_00159,
CC ECO:0000269|PubMed:12482607};
CC -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC pH dependence:
CC Optimum pH is 7.5.;
CC Temperature dependence:
CC Optimum temperature is 55 degrees Celsius.;
CC -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC phosphate: step 5/6. {ECO:0000255|HAMAP-Rule:MF_00159}.
CC -!- SIMILARITY: Belongs to the IspG family. {ECO:0000255|HAMAP-
CC Rule:MF_00159}.
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DR EMBL; AY167032; AAO21364.1; -; Genomic_DNA.
DR RefSeq; WP_011174043.1; NZ_CP053287.1.
DR PDB; 4S23; X-ray; 1.65 A; A/B=1-406.
DR PDBsum; 4S23; -.
DR AlphaFoldDB; Q84GJ3; -.
DR SMR; Q84GJ3; -.
DR MINT; Q84GJ3; -.
DR UniPathway; UPA00056; UER00096.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046429; F:4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IEA:UniProtKB-UniPathway.
DR GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.20.20.20; -; 1.
DR Gene3D; 3.30.413.10; -; 1.
DR HAMAP; MF_00159; IspG; 1.
DR InterPro; IPR011005; Dihydropteroate_synth-like.
DR InterPro; IPR016425; IspG_bac.
DR InterPro; IPR004588; IspG_bac-typ.
DR InterPro; IPR045854; NO2/SO3_Rdtase_4Fe4S_sf.
DR PANTHER; PTHR30454; PTHR30454; 1.
DR Pfam; PF04551; GcpE; 1.
DR PIRSF; PIRSF004640; IspG; 1.
DR SUPFAM; SSF51717; SSF51717; 1.
DR SUPFAM; SSF56014; SSF56014; 1.
DR TIGRFAMs; TIGR00612; ispG_gcpE; 1.
PE 1: Evidence at protein level;
KW 3D-structure; 4Fe-4S; Iron; Iron-sulfur; Isoprene biosynthesis;
KW Metal-binding; Oxidoreductase.
FT CHAIN 1..406
FT /note="4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase
FT (flavodoxin)"
FT /id="PRO_0000190643"
FT BINDING 297
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT BINDING 300
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT BINDING 343
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT BINDING 350
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT STRAND 11..13
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 16..19
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 25..29
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 37..50
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 53..58
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 62..76
FT /evidence="ECO:0007829|PDB:4S23"
FT TURN 77..79
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 84..87
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 92..98
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 100..105
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 107..111
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 118..120
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 121..136
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 140..145
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 146..148
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 151..161
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 164..166
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 170..191
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 196..198
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 199..204
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 208..221
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 226..228
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 236..252
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 257..259
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 273..284
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 293..296
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 305..329
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 333..335
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 337..343
FT /evidence="ECO:0007829|PDB:4S23"
FT TURN 344..346
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 347..351
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 354..359
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 367..373
FT /evidence="ECO:0007829|PDB:4S23"
FT STRAND 376..384
FT /evidence="ECO:0007829|PDB:4S23"
FT HELIX 386..401
FT /evidence="ECO:0007829|PDB:4S23"
SQ SEQUENCE 406 AA; 44217 MW; F6DA1B69F28093B0 CRC64;
MEGMRRPTPT VYVGRVPIGG AHPIAVQSMT NTPTRDVEAT TAQVLELHRA GSEIVRLTVN
DEEAAKAVPE IKRRLLAEGV EVPLVGDFHF NGHLLLRKYP KMAEALDKFR INPGTLGRGR
HKDEHFAEMI RIAMDLGKPV RIGANWGSLD PALLTELMDR NASRPEPKSA HEVVLEALVE
SAVRAYEAAL EMGLGEDKLV LSAKVSKARD LVWVYRELAR RTQAPLHLGL TEAGMGVKGI
VASAAALAPL LLEGIGDTIR VSLTPSPKEP RTKEVEVAQE ILQALGLRAF APEVTSCPGC
GRTTSTFFQE LAEEVSRRLK ERLPEWRARY PGVEELKVAV MGCVVNGPGE SKHAHIGISL
PGAGEEPKAP VYADGKLLTI LKGEGIAEEF LRLVEDYVKT RFAPKA
