GLND_ACIBT
ID GLND_ACIBT Reviewed; 887 AA.
AC A3M4Q8;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 2.
DT 25-MAY-2022, entry version 97.
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}; OrderedLocusNames=A1S_1474;
OS Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC
OS KC755 / 5377).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX NCBI_TaxID=400667;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377;
RX PubMed=17344419; DOI=10.1101/gad.1510307;
RA Smith M.G., Gianoulis T.A., Pukatzki S., Mekalanos J.J., Ornston L.N.,
RA Gerstein M., Snyder M.;
RT "New insights into Acinetobacter baumannii pathogenesis revealed by high-
RT density pyrosequencing and transposon mutagenesis.";
RL Genes Dev. 21:601-614(2007).
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;
CC Evidence={ECO:0000255|HAMAP-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; CP000521; ABO11902.2; -; Genomic_DNA.
DR RefSeq; WP_000611177.1; NZ_CP053098.1.
DR AlphaFoldDB; A3M4Q8; -.
DR SMR; A3M4Q8; -.
DR KEGG; acb:A1S_1474; -.
DR HOGENOM; CLU_012833_0_0_6; -.
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; cd00077; HDc; 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 PANTHER; PTHR47320; PTHR47320; 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; SSF55021; 1.
DR SUPFAM; SSF81301; SSF81301; 1.
DR TIGRFAMs; TIGR01693; UTase_glnD; 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..887
FT /note="Bifunctional uridylyltransferase/uridylyl-removing
FT enzyme"
FT /id="PRO_1000114748"
FT DOMAIN 457..579
FT /note="HD"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01175"
FT DOMAIN 700..782
FT /note="ACT 1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00277"
FT DOMAIN 809..887
FT /note="ACT 2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00277"
FT REGION 1..337
FT /note="Uridylyltransferase"
FT REGION 339..699
FT /note="Uridylyl-removing"
SQ SEQUENCE 887 AA; 102126 MW; 5D8D5FB823A833F9 CRC64;
MINTSPLLNY VSSHHDIKAI NQWRTDVEKQ LQDSYENGQS IREIIKARSD LVDEALVFLW
KHAELDQSKL GLFAVGGYGR REMLPYSDVD IMILSEDEIS EENEKRISTF ISSLWDVGNF
KPGISVRTIQ SCVEQAATDL TVATTLIEAR LITGNTQLAK WPRRIVSQTW TDKTFYDAKM
AEQAKRYHQH NNTESNLEPD IKNAPGGIRD INQIGWIAKR HFRVNRIYDL VHLGFISEFE
LAVLEEAESF LWEIRHHLHR LAKRDENRLL FDHQREIAAK FGYVRQEGQP VNYGVEQFMK
RYYRTAQQVS TLNEMLLAYF SESVITPRLP NYERKIEVVN DHFKIVDNKL AVQHHKIFAE
HPSAILELFY ILANRPDIEG IRARTLRLLI LAAKRINQSY RDNPEHQALF MSIIRSPYRL
YDTLVAMKRY GVLGNYIPAF GQIMGLMQYD LFHIYTVDAH TLLLLRNLNR FREPEFAKEF
PVVSSVFQRL ARQDIVFIAA LFHDIAKGRG GDHSELGAED AIEFGRAHGF TERECKLIAW
LIQNHLLMSL TAQKKDISDP DVVKDFAEKL GDMEHLDYLY TLTVADINAT NPKLWNTWRA
SLMRQLYTHA RDVIRTGLGR PVDYQMLIED TKFAASELLV NNFALADVEK VWQELGDEYF
IKESADEIAW HTQAILKHGD NPEPLVLLRA HRKAAQDAVQ IFIYTRDQPN LFATTVAVLD
RMNLDVQDAK IITASTAFSL DTYVVLDRFG TLLTDPEREE TVKNALVKAL SQPDQYPGLM
QRRIPRQLRH FDIENTVDVT LNEALQQNMV EISTLDHPGL LARVGGLFMM QGLDIHSARI
ATLGERAEDI FFVTKKDGKP LNHEEVKLFS EKLKAALDEA SNQICQH
