GMPR_ONCVO
ID GMPR_ONCVO Reviewed; 364 AA.
AC Q9NJD8;
DT 08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 85.
DE RecName: Full=GMP reductase {ECO:0000255|HAMAP-Rule:MF_03195};
DE Short=GMPR {ECO:0000255|HAMAP-Rule:MF_03195};
DE EC=1.7.1.7 {ECO:0000255|HAMAP-Rule:MF_03195};
DE AltName: Full=Guanosine 5'-monophosphate oxidoreductase {ECO:0000255|HAMAP-Rule:MF_03195};
DE Short=Guanosine monophosphate reductase {ECO:0000255|HAMAP-Rule:MF_03195};
GN Name=gmr-1;
OS Onchocerca volvulus.
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Spirurina; Spiruromorpha; Filarioidea; Onchocercidae; Onchocerca.
OX NCBI_TaxID=6282;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RX PubMed=10816503; DOI=10.1128/iai.68.6.3491-3501.2000;
RA Lizotte-Waniewski M., Tawe W., Guiliano D.B., Lu W., Liu J., Williams S.A.,
RA Lustigman S.;
RT "Identification of potential vaccine and drug target candidates by
RT expressed sequence tag analysis and immunoscreening of Onchocerca volvulus
RT larval cDNA libraries.";
RL Infect. Immun. 68:3491-3501(2000).
CC -!- FUNCTION: Catalyzes the irreversible NADPH-dependent deamination of GMP
CC to IMP. It functions in the conversion of nucleobase, nucleoside and
CC nucleotide derivatives of G to A nucleotides, and in maintaining the
CC intracellular balance of A and G nucleotides. {ECO:0000255|HAMAP-
CC Rule:MF_03195}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=IMP + NADP(+) + NH4(+) = GMP + 2 H(+) + NADPH;
CC Xref=Rhea:RHEA:17185, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58053, ChEBI:CHEBI:58115,
CC ChEBI:CHEBI:58349; EC=1.7.1.7; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_03195};
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_03195}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family. GuaC type 1 subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_03195}.
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DR EMBL; AF153721; AAF64252.1; -; mRNA.
DR AlphaFoldDB; Q9NJD8; -.
DR SMR; Q9NJD8; -.
DR STRING; 6282.Q9NJD8; -.
DR HOGENOM; CLU_022552_5_3_1; -.
DR Proteomes; UP000024404; Unassembled WGS sequence.
DR GO; GO:1902560; C:GMP reductase complex; IEA:InterPro.
DR GO; GO:0003920; F:GMP reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006144; P:purine nucleobase metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0006163; P:purine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_00596; GMP_reduct_type1; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR005993; GMPR.
DR InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR Pfam; PF00478; IMPDH; 1.
DR PIRSF; PIRSF000235; GMP_reductase; 1.
DR TIGRFAMs; TIGR01305; GMP_reduct_1; 1.
DR PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE 2: Evidence at transcript level;
KW Metal-binding; NADP; Oxidoreductase; Potassium; Purine metabolism;
KW Reference proteome.
FT CHAIN 1..364
FT /note="GMP reductase"
FT /id="PRO_0000093730"
FT ACT_SITE 189
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT ACT_SITE 191
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 26..27
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 78
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 132..134
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 183..184
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 184
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 186
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 189
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 192
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 222..224
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 245..246
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 271..273
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 272
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 288..289
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 289..293
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
FT BINDING 317..320
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03195"
SQ SEQUENCE 364 AA; 39874 MW; 64224E6F9B14847A CRC64;
MPTIENEPKL DFKDVLLRPK RSTLKSRADV DLVREFVFRN SKKKYVGIPI VASNMDTVGT
FEVAESLSKK RLFTTIHKHY SVDQWMEFVN RISSNQDILS QIGISSGISD YDFTKLKKIC
GLIPELQYIC LDVANGYSEV FVDFIRRVRE EFPRHTIFAG NVVTGEMTEE LILSGADVVK
VGIGSGSVCT TRKKAGVGYP QLSAVLECAD ASHGLNGHVM SDGGCTNPGD VAKALGAGAD
FVMIGGLFAG HDQCGGDTVE KDGQKYKLFY GMSSDTAMEK HEGSVAEYRA SEGKTITVPY
RGDISKTVQD LLGGLRSACT YTGAKKLKEL SKRATFVRVT QQTNEQYATF EISPSELQNL
NIAV
