ID A0A0N5CU62_THECL Unreviewed; 838 AA.
AC A0A0N5CU62;
DT 09-DEC-2015, integrated into UniProtKB/TrEMBL.
DT 09-DEC-2015, sequence version 1.
DT 27-MAR-2024, entry version 39.
DE RecName: Full=Inosine-5'-monophosphate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
DE Short=IMP dehydrogenase {ECO:0000256|HAMAP-Rule:MF_03156};
DE Short=IMPD {ECO:0000256|HAMAP-Rule:MF_03156};
DE Short=IMPDH {ECO:0000256|HAMAP-Rule:MF_03156};
DE EC=1.1.1.205 {ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
GN ORFNames=TCLT_LOCUS3774 {ECO:0000313|EMBL:VDN00776.1};
OS Thelazia callipaeda (Oriental eyeworm) (Parasitic nematode).
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Spirurina; Spiruromorpha; Thelazioidea; Thelaziidae; Thelazia.
OX NCBI_TaxID=103827 {ECO:0000313|Proteomes:UP000046394, ECO:0000313|WBParaSite:TCLT_0000378501-mRNA-1};
RN [1] {ECO:0000313|WBParaSite:TCLT_0000378501-mRNA-1}
RP IDENTIFICATION.
RG WormBaseParasite;
RL Submitted (FEB-2017) to UniProtKB.
RN [2] {ECO:0000313|EMBL:VDN00776.1, ECO:0000313|Proteomes:UP000276776}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG Pathogen Informatics;
RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the conversion of inosine 5'-phosphate (IMP) to
CC xanthosine 5'-phosphate (XMP), the first committed and rate-limiting
CC step in the de novo synthesis of guanine nucleotides, and therefore
CC plays an important role in the regulation of cell growth.
CC {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + IMP + NAD(+) = H(+) + NADH + XMP; Xref=Rhea:RHEA:11708,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57464,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:58053;
CC EC=1.1.1.205; Evidence={ECO:0000256|ARBA:ARBA00024264,
CC ECO:0000256|HAMAP-Rule:MF_03156, ECO:0000256|RuleBase:RU003928};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|ARBA:ARBA00001958,
CC ECO:0000256|HAMAP-Rule:MF_03156};
CC -!- ACTIVITY REGULATION: Mycophenolic acid (MPA) is a non-competitive
CC inhibitor that prevents formation of the closed enzyme conformation by
CC binding to the same site as the amobile flap. In contrast, mizoribine
CC monophosphate (MZP) is a competitive inhibitor that induces the closed
CC conformation. MPA is a potent inhibitor of mammalian IMPDHs but a poor
CC inhibitor of the bacterial enzymes. MZP is a more potent inhibitor of
CC bacterial IMPDH. {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via de novo pathway; XMP
CC from IMP: step 1/1. {ECO:0000256|HAMAP-Rule:MF_03156,
CC ECO:0000256|RuleBase:RU003928}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- SIMILARITY: Belongs to the IMPDH/GMPR family.
CC {ECO:0000256|ARBA:ARBA00005502, ECO:0000256|HAMAP-Rule:MF_03156}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03156}.
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DR EMBL; UYYF01004266; VDN00776.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0N5CU62; -.
DR STRING; 103827.A0A0N5CU62; -.
DR WBParaSite; TCLT_0000378501-mRNA-1; TCLT_0000378501-mRNA-1; TCLT_0000378501.
DR UniPathway; UPA00601; UER00295.
DR Proteomes; UP000046394; Unplaced.
DR Proteomes; UP000276776; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003938; F:IMP dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009982; F:pseudouridine synthase activity; IEA:InterPro.
DR GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR GO; GO:0006177; P:GMP biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0001522; P:pseudouridine synthesis; IEA:InterPro.
DR CDD; cd04601; CBS_pair_IMPDH; 1.
DR CDD; cd00381; IMPDH; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR Gene3D; 3.30.70.660; Pseudouridine synthase I, catalytic domain, C-terminal subdomain; 1.
DR Gene3D; 3.30.70.580; Pseudouridine synthase I, catalytic domain, N-terminal subdomain; 1.
DR HAMAP; MF_01964; IMPDH; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR000644; CBS_dom.
DR InterPro; IPR046342; CBS_dom_sf.
DR InterPro; IPR005990; IMP_DH.
DR InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR InterPro; IPR001093; IMP_DH_GMPRt.
DR InterPro; IPR020103; PsdUridine_synth_cat_dom_sf.
DR InterPro; IPR020097; PsdUridine_synth_TruA_a/b_dom.
DR InterPro; IPR020095; PsdUridine_synth_TruA_C.
DR InterPro; IPR020094; TruA/RsuA/RluB/E/F_N.
DR NCBIfam; TIGR01302; IMP_dehydrog; 1.
DR PANTHER; PTHR11911:SF111; INOSINE-5'-MONOPHOSPHATE DEHYDROGENASE; 1.
DR PANTHER; PTHR11911; INOSINE-5-MONOPHOSPHATE DEHYDROGENASE RELATED; 1.
DR Pfam; PF00571; CBS; 1.
DR Pfam; PF00478; IMPDH; 1.
DR Pfam; PF01416; PseudoU_synth_1; 1.
DR SMART; SM00116; CBS; 2.
DR SMART; SM01240; IMPDH; 1.
DR SUPFAM; SSF54631; CBS-domain pair; 1.
DR SUPFAM; SSF51412; Inosine monophosphate dehydrogenase (IMPDH); 1.
DR SUPFAM; SSF55120; Pseudouridine synthase; 1.
DR PROSITE; PS51371; CBS; 1.
DR PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE 3: Inferred from homology;
KW CBS domain {ECO:0000256|ARBA:ARBA00023122, ECO:0000256|PROSITE-
KW ProRule:PRU00703}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03156};
KW GMP biosynthesis {ECO:0000256|ARBA:ARBA00022749, ECO:0000256|HAMAP-
KW Rule:MF_03156}; Isomerase {ECO:0000256|ARBA:ARBA00023235};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03156};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_03156};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_03156};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_03156};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_03156}; Reference proteome {ECO:0000313|Proteomes:UP000276776}.
FT DOMAIN 183..241
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
FT ACT_SITE 336
FT /note="Thioimidate intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT ACT_SITE 435
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 278..280
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 329..331
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 331
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 333
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 334
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 336
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /ligand_note="ligand shared between two tetrameric
FT partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 369..371
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 392..393
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 417..421
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
FT BINDING 448
FT /ligand="IMP"
FT /ligand_id="ChEBI:CHEBI:58053"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03156"
SQ SEQUENCE 838 AA; 93197 MW; 66735C5A40FDF180 CRC64;
MDESGETVRE LDDDGQTIDE LMSSQMGLTY NSVFSDFNIL PGFINFDVFS VDLSTKLTRD
ITLKIPLVSS PMDTVTESEM AISMALHGGI GIIHANYASL DDQIKEVVKV KRYKQGFISH
PHCIKKTDSV LDLLQIKKKY GFTGTPVTST GAVGGKLLGL VTSRDIDLID ESKYSCTKIS
DVMVPLESLI TGTEDLTLEH AYKILETEKK GKLPIVNSNN ELVSLIARSD LKKARDFPWS
SYDSKGQLRV GAAINTRESA KEAVKKLAEA GADVLVIDSS QGASIYQVNL LHWIKKKYPK
RPQIIAGNVV TKKQAAILIA AGADAVRVGM GSGSICITQE VTAVGRAQGT AVYRVAKYAR
LHGIPVIADG GIRDVGYITK ALALGASTVM MGGLLAGTTE APGEYFWGPS GVRLKKYRGM
GSIDAMKANI SSQDRYFNSE SDAIKVAQGV SATMRDRGSV HKFVPYLVRG IQHGFQDIGV
RDLEELRVGV VRGEIRFELR SNNAQVEGGV HSLHSAEVCR YLLWTSYDGA RFISIADGNA
RFGVLGFLKA LVKESFPDVG EQLKMSQSSR TDAGVHALRN AFIVQIPIMN ADRAKSKLLH
DWNQRADECT GKSIRVLDFH NVSKGFCSRR NVSYRKYKYR LAVADNENEW LKYIEHPSTW
QFAEKPYMWF LPNGFDIQKA VDACLLFKIS FYGTHNMASF MKYPLRDRLR TVERIPTLRH
ILHIGISGGC SRILNASGFS LIDISVISRS FLRSQIRRMV RTIVDHAYGH ISRERLLWLL
DNPNPDNFHH LGMVSAPAQG LFLEDVVYDE RMFCNPVPYH YHSWDEEIDG MLCDDESF
//
