ISPF_EHRRW
ID ISPF_EHRRW Reviewed; 173 AA.
AC Q5HC74; Q5FCQ1;
DT 30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT 15-FEB-2005, sequence version 1.
DT 03-AUG-2022, entry version 94.
DE RecName: Full=2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase {ECO:0000255|HAMAP-Rule:MF_00107};
DE Short=MECDP-synthase {ECO:0000255|HAMAP-Rule:MF_00107};
DE Short=MECPP-synthase {ECO:0000255|HAMAP-Rule:MF_00107};
DE Short=MECPS {ECO:0000255|HAMAP-Rule:MF_00107};
DE EC=4.6.1.12 {ECO:0000255|HAMAP-Rule:MF_00107};
GN Name=ispF {ECO:0000255|HAMAP-Rule:MF_00107};
GN OrderedLocusNames=Erum1020, ERWE_CDS_00990;
OS Ehrlichia ruminantium (strain Welgevonden).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Anaplasmataceae; Ehrlichia.
OX NCBI_TaxID=254945;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Welgevonden;
RX PubMed=15637156; DOI=10.1073/pnas.0406633102;
RA Collins N.E., Liebenberg J., de Villiers E.P., Brayton K.A., Louw E.,
RA Pretorius A., Faber F.E., van Heerden H., Josemans A., van Kleef M.,
RA Steyn H.C., van Strijp M.F., Zweygarth E., Jongejan F., Maillard J.C.,
RA Berthier D., Botha M., Joubert F., Corton C.H., Thomson N.R., Allsopp M.T.,
RA Allsopp B.A.;
RT "The genome of the heartwater agent Ehrlichia ruminantium contains multiple
RT tandem repeats of actively variable copy number.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:838-843(2005).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Welgevonden;
RX PubMed=16547041; DOI=10.1128/jb.188.7.2533-2542.2006;
RA Frutos R., Viari A., Ferraz C., Morgat A., Eychenie S., Kandassamy Y.,
RA Chantal I., Bensaid A., Coissac E., Vachiery N., Demaille J., Martinez D.;
RT "Comparative genomic analysis of three strains of Ehrlichia ruminantium
RT reveals an active process of genome size plasticity.";
RL J. Bacteriol. 188:2533-2542(2006).
CC -!- FUNCTION: Involved in the biosynthesis of isopentenyl diphosphate (IPP)
CC and dimethylallyl diphosphate (DMAPP), two major building blocks of
CC isoprenoid compounds. Catalyzes the conversion of 4-diphosphocytidyl-2-
CC C-methyl-D-erythritol 2-phosphate (CDP-ME2P) to 2-C-methyl-D-erythritol
CC 2,4-cyclodiphosphate (ME-CPP) with a corresponding release of cytidine
CC 5-monophosphate (CMP). {ECO:0000255|HAMAP-Rule:MF_00107}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=4-CDP-2-C-methyl-D-erythritol 2-phosphate = 2-C-methyl-D-
CC erythritol 2,4-cyclic diphosphate + CMP; Xref=Rhea:RHEA:23864,
CC ChEBI:CHEBI:57919, ChEBI:CHEBI:58483, ChEBI:CHEBI:60377; EC=4.6.1.12;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00107};
CC -!- COFACTOR:
CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00107};
CC Note=Binds 1 divalent metal cation per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00107};
CC -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC phosphate: step 4/6. {ECO:0000255|HAMAP-Rule:MF_00107}.
CC -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_00107}.
CC -!- SIMILARITY: Belongs to the IspF family. {ECO:0000255|HAMAP-
CC Rule:MF_00107}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAI26593.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; CR767821; CAH57817.1; -; Genomic_DNA.
DR EMBL; CR925678; CAI26593.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_011154786.1; NC_006832.1.
DR AlphaFoldDB; Q5HC74; -.
DR SMR; Q5HC74; -.
DR STRING; 254945.Erum1020; -.
DR EnsemblBacteria; CAI26593; CAI26593; ERWE_CDS_00990.
DR GeneID; 56784809; -.
DR KEGG; eru:Erum1020; -.
DR KEGG; erw:ERWE_CDS_00990; -.
DR eggNOG; COG0245; Bacteria.
DR HOGENOM; CLU_084630_2_0_5; -.
DR BioCyc; ERUM254945:ERUM_RS00575-MON; -.
DR UniPathway; UPA00056; UER00095.
DR Proteomes; UP000001021; Chromosome.
DR GO; GO:0008685; F:2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
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 CDD; cd00554; MECDP_synthase; 1.
DR Gene3D; 3.30.1330.50; -; 1.
DR HAMAP; MF_00107; IspF; 1.
DR InterPro; IPR003526; MECDP_synthase.
DR InterPro; IPR020555; MECDP_synthase_CS.
DR InterPro; IPR036571; MECDP_synthase_sf.
DR PANTHER; PTHR43181; PTHR43181; 1.
DR Pfam; PF02542; YgbB; 1.
DR SUPFAM; SSF69765; SSF69765; 1.
DR TIGRFAMs; TIGR00151; ispF; 1.
DR PROSITE; PS01350; ISPF; 1.
PE 3: Inferred from homology;
KW Isoprene biosynthesis; Lyase; Metal-binding.
FT CHAIN 1..173
FT /note="2-C-methyl-D-erythritol 2,4-cyclodiphosphate
FT synthase"
FT /id="PRO_0000237725"
FT BINDING 17..19
FT /ligand="4-CDP-2-C-methyl-D-erythritol 2-phosphate"
FT /ligand_id="ChEBI:CHEBI:57919"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 17
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 19
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 49..50
FT /ligand="4-CDP-2-C-methyl-D-erythritol 2-phosphate"
FT /ligand_id="ChEBI:CHEBI:57919"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 57
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 76..80
FT /ligand="4-CDP-2-C-methyl-D-erythritol 2-phosphate"
FT /ligand_id="ChEBI:CHEBI:57919"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 147..150
FT /ligand="4-CDP-2-C-methyl-D-erythritol 2-phosphate"
FT /ligand_id="ChEBI:CHEBI:57919"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT BINDING 157
FT /ligand="4-CDP-2-C-methyl-D-erythritol 2-phosphate"
FT /ligand_id="ChEBI:CHEBI:57919"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT SITE 49
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
FT SITE 148
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00107"
SQ SEQUENCE 173 AA; 19088 MW; 09399B1E13C83127 CRC64;
MSKHTNIPMF RIGIGYDVHR FDNINNDDSN TSITICGIKI NYHKKIIAHS DGDVGLHALA
DAILGAVGCG SIGQHFPNTD KKWKNAESSH FVIEAQKKAQ ERGYIISNAD IIIICEQPKI
MPYALEMQHY IAQFTSIDPS FINIKATTTE KLGAIGRNEG IAAQAIVLCS QQY
