ID   GLND_VIBVU              Reviewed;         873 AA.
AC   Q8DBG3;
DT   23-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   27-MAR-2024, entry version 123.
DE   RecName: Full=Bifunctional uridylyltransferase/uridylyl-removing enzyme {ECO:0000255|HAMAP-Rule:MF_00277};
DE            Short=UTase/UR {ECO:0000255|HAMAP-Rule:MF_00277};
DE   AltName: Full=Bifunctional [protein-PII] modification enzyme {ECO:0000255|HAMAP-Rule:MF_00277};
DE   AltName: Full=Bifunctional nitrogen sensor protein {ECO:0000255|HAMAP-Rule:MF_00277};
DE   Includes:
DE     RecName: Full=[Protein-PII] uridylyltransferase {ECO:0000255|HAMAP-Rule:MF_00277};
DE              Short=PII uridylyltransferase {ECO:0000255|HAMAP-Rule:MF_00277};
DE              Short=UTase {ECO:0000255|HAMAP-Rule:MF_00277};
DE              EC=2.7.7.59 {ECO:0000255|HAMAP-Rule:MF_00277};
DE   Includes:
DE     RecName: Full=[Protein-PII]-UMP uridylyl-removing enzyme {ECO:0000255|HAMAP-Rule:MF_00277};
DE              Short=UR {ECO:0000255|HAMAP-Rule:MF_00277};
DE              EC=3.1.4.- {ECO:0000255|HAMAP-Rule:MF_00277};
GN   Name=glnD {ECO:0000255|HAMAP-Rule:MF_00277};
GN   OrderedLocusNames=VV1_1857;
OS   Vibrio vulnificus (strain CMCP6).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=216895;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CMCP6;
RA   Rhee J.H., Kim S.Y., Chung S.S., Kim J.J., Moon Y.H., Jeong H., Choy H.E.;
RT   "Complete genome sequence of Vibrio vulnificus CMCP6.";
RL   Submitted (DEC-2002) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Modifies, by uridylylation and deuridylylation, the PII
CC       regulatory proteins (GlnB and homologs), in response to the nitrogen
CC       status of the cell that GlnD senses through the glutamine level. Under
CC       low glutamine levels, catalyzes the conversion of the PII proteins and
CC       UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD
CC       hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls
CC       uridylylation state and activity of the PII proteins, and plays an
CC       important role in the regulation of nitrogen assimilation and
CC       metabolism. {ECO:0000255|HAMAP-Rule:MF_00277}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[protein-PII]-L-tyrosine + UTP = [protein-PII]-uridylyl-L-
CC         tyrosine + diphosphate; Xref=Rhea:RHEA:13673, Rhea:RHEA-COMP:12147,
CC         Rhea:RHEA-COMP:12148, ChEBI:CHEBI:33019, ChEBI:CHEBI:46398,
CC         ChEBI:CHEBI:46858, ChEBI:CHEBI:90602; EC=2.7.7.59;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00277};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[protein-PII]-uridylyl-L-tyrosine + H2O = [protein-PII]-L-
CC         tyrosine + H(+) + UMP; Xref=Rhea:RHEA:48600, Rhea:RHEA-COMP:12147,
CC         Rhea:RHEA-COMP:12148, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:46858, ChEBI:CHEBI:57865, ChEBI:CHEBI:90602;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00277};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00277};
CC   -!- ACTIVITY REGULATION: Uridylyltransferase (UTase) activity is inhibited
CC       by glutamine, while glutamine activates uridylyl-removing (UR)
CC       activity. {ECO:0000255|HAMAP-Rule:MF_00277}.
CC   -!- DOMAIN: Has four distinct domains: an N-terminal nucleotidyltransferase
CC       (NT) domain responsible for UTase activity, a central HD domain that
CC       encodes UR activity, and two C-terminal ACT domains that seem to have a
CC       role in glutamine sensing. {ECO:0000255|HAMAP-Rule:MF_00277}.
CC   -!- SIMILARITY: Belongs to the GlnD family. {ECO:0000255|HAMAP-
CC       Rule:MF_00277}.
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DR   EMBL; AE016795; AAO10260.1; -; Genomic_DNA.
DR   RefSeq; WP_011079760.1; NC_004459.3.
DR   AlphaFoldDB; Q8DBG3; -.
DR   SMR; Q8DBG3; -.
DR   KEGG; vvu:VV1_1857; -.
DR   HOGENOM; CLU_012833_0_0_6; -.
DR   Proteomes; UP000002275; Chromosome 1.
DR   GO; GO:0008773; F:[protein-PII] uridylyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008081; F:phosphoric diester hydrolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006807; P:nitrogen compound metabolic process; IEA:InterPro.
DR   GO; GO:0006808; P:regulation of nitrogen utilization; IEA:UniProtKB-UniRule.
DR   CDD; cd04899; ACT_ACR-UUR-like_2; 1.
DR   CDD; cd04900; ACT_UUR-like_1; 1.
DR   CDD; cd00077; HDc; 1.
DR   CDD; cd05401; NT_GlnE_GlnD_like; 1.
DR   Gene3D; 3.30.460.10; Beta Polymerase, domain 2; 1.
DR   Gene3D; 1.10.3090.10; cca-adding enzyme, domain 2; 1.
DR   HAMAP; MF_00277; PII_uridylyl_transf; 1.
DR   InterPro; IPR045865; ACT-like_dom_sf.
DR   InterPro; IPR002912; ACT_dom.
DR   InterPro; IPR003607; HD/PDEase_dom.
DR   InterPro; IPR006674; HD_domain.
DR   InterPro; IPR043519; NT_sf.
DR   InterPro; IPR013546; PII_UdlTrfase/GS_AdlTrfase.
DR   InterPro; IPR002934; Polymerase_NTP_transf_dom.
DR   InterPro; IPR010043; UTase/UR.
DR   NCBIfam; TIGR01693; UTase_glnD; 1.
DR   PANTHER; PTHR47320; BIFUNCTIONAL URIDYLYLTRANSFERASE/URIDYLYL-REMOVING ENZYME; 1.
DR   PANTHER; PTHR47320:SF1; BIFUNCTIONAL URIDYLYLTRANSFERASE_URIDYLYL-REMOVING ENZYME; 1.
DR   Pfam; PF08335; GlnD_UR_UTase; 1.
DR   Pfam; PF01966; HD; 1.
DR   Pfam; PF01909; NTP_transf_2; 1.
DR   PIRSF; PIRSF006288; PII_uridyltransf; 1.
DR   SMART; SM00471; HDc; 1.
DR   SUPFAM; SSF55021; ACT-like; 2.
DR   SUPFAM; SSF109604; HD-domain/PDEase-like; 1.
DR   SUPFAM; SSF81301; Nucleotidyltransferase; 1.
DR   SUPFAM; SSF81593; Nucleotidyltransferase substrate binding subunit/domain; 1.
DR   PROSITE; PS51671; ACT; 2.
DR   PROSITE; PS51831; HD; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Magnesium; Multifunctional enzyme; Nucleotidyltransferase;
KW   Repeat; Transferase.
FT   CHAIN           1..873
FT                   /note="Bifunctional uridylyltransferase/uridylyl-removing
FT                   enzyme"
FT                   /id="PRO_0000192774"
FT   DOMAIN          451..573
FT                   /note="HD"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01175"
FT   DOMAIN          693..773
FT                   /note="ACT 1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00277"
FT   DOMAIN          800..873
FT                   /note="ACT 2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00277"
FT   REGION          1..332
FT                   /note="Uridylyltransferase"
FT   REGION          333..692
FT                   /note="Uridylyl-removing"
SQ   SEQUENCE   873 AA;  101030 MW;  EF8625318CD2C16B CRC64;
     MAFQSPLTFN DEQLTVAQLK SQLDLFANAQ KQAFLNHHPV TDLVLSRAEY MDLLLTRLWR
     YYGFSEIHNI SLVAVGGYGR GELHPLSDID ILVLSKHKLP GELETKLSEF ITLLWDLRLE
     VGHAVRTVEE CAAIGREDLT VATNLQEARL LCGSENTFQD LKKVVLSDSF WPSETFYRAK
     IQEQRERHAR YHDTTYNLEP DIKSTPGGLR DIHTLSWVAR RHFGATSLLE MSRYGFLTDA
     EYRELVECQD FLWRVRFALH IELKRYDNRL TFAHQIQVAE HLGFKGEGNR GIEMMMKEFY
     RTLRRVAELN KMLLKLFDQA IINGGETEPA VIINEDFQRR GRLIEARKPA LFQARPETIL
     DMFLHIANDS TIDSVSPPTL RQLRTARRRL NKFLHTIPEA REKFMELVRH PNALHRAFSL
     MHKLGVLAAY LPQWSQIVGQ MQFDLFHVYT VDEHSVRLLN HINTFSYAKN HDKHPICCEV
     YPRLQKKELL LLAAIFHDIG KGRGGDHSEI GEKEAYDFCI EHGLSKPEAK LVSWLVRHHL
     LMSVTAQRRD IYDPEVITEF AKQVRDEERL EYLVCLTVAD ICATNPELWN SWKRTLLAEL
     FYSTQRALRR GLENPVDVRE RIRHNQQLAS ALLRKEGFTA REIEVLWQRF KADYFLRHTH
     KQIAWHCEHI LRMDNPEQPL VLMSKKATRG GTEVFVYTKD QHALFATVVA ELDRRNFNVH
     DAQIMSSKDG YVLDTFMVLD QHGQAIDVDN HKAVIKHLMH VLADGRPTKV KTRRTPYKLQ
     HFKVKTKVDF LPTKSKKRTL MELVALDTPG LLAITGATFA DMGFNLHGAK ITTIGERAED
     LFILTSENGG RLSEEQELQL REKLIHNIAE LAP
//