位置:首页 > 蛋白库 > MURQ_ECOLC
MURQ_ECOLC
ID   MURQ_ECOLC              Reviewed;         298 AA.
AC   B1IX44;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 76.
DE   RecName: Full=N-acetylmuramic acid 6-phosphate etherase {ECO:0000255|HAMAP-Rule:MF_00068};
DE            Short=MurNAc-6-P etherase {ECO:0000255|HAMAP-Rule:MF_00068};
DE            EC=4.2.1.126 {ECO:0000255|HAMAP-Rule:MF_00068};
DE   AltName: Full=N-acetylmuramic acid 6-phosphate hydrolase {ECO:0000255|HAMAP-Rule:MF_00068};
DE   AltName: Full=N-acetylmuramic acid 6-phosphate lyase {ECO:0000255|HAMAP-Rule:MF_00068};
GN   Name=murQ {ECO:0000255|HAMAP-Rule:MF_00068}; OrderedLocusNames=EcolC_1251;
OS   Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 /
OS   WDCM 00012 / Crooks).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=481805;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Ingram L., Richardson P.;
RT   "Complete sequence of Escherichia coli C str. ATCC 8739.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Specifically catalyzes the cleavage of the D-lactyl ether
CC       substituent of MurNAc 6-phosphate, producing GlcNAc 6-phosphate and D-
CC       lactate. Together with AnmK, is also required for the utilization of
CC       anhydro-N-acetylmuramic acid (anhMurNAc) either imported from the
CC       medium or derived from its own cell wall murein, and thus plays a role
CC       in cell wall recycling. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N-acetyl-D-muramate 6-phosphate = (R)-lactate + N-
CC         acetyl-D-glucosamine 6-phosphate; Xref=Rhea:RHEA:26410,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:16004, ChEBI:CHEBI:57513,
CC         ChEBI:CHEBI:58722; EC=4.2.1.126; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00068};
CC   -!- PATHWAY: Amino-sugar metabolism; 1,6-anhydro-N-acetylmuramate
CC       degradation. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- PATHWAY: Amino-sugar metabolism; N-acetylmuramate degradation.
CC       {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- PATHWAY: Cell wall biogenesis; peptidoglycan recycling.
CC       {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- INDUCTION: Induced by MurNAc 6-phosphate that releases the repressor
CC       MurR from the DNA. Repressed by MurR in the absence of MurNAc 6-
CC       phosphate. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- MISCELLANEOUS: A lyase-type mechanism (elimination/hydration) is
CC       suggested for the cleavage of the lactyl ether bond of MurNAc 6-
CC       phosphate, with the formation of an alpha,beta-unsaturated aldehyde
CC       intermediate with (E)-stereochemistry, followed by the syn addition of
CC       water to give product. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- SIMILARITY: Belongs to the GCKR-like family. MurNAc-6-P etherase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000946; ACA76917.1; -; Genomic_DNA.
DR   RefSeq; WP_001159160.1; NZ_CP022959.1.
DR   AlphaFoldDB; B1IX44; -.
DR   SMR; B1IX44; -.
DR   KEGG; ecl:EcolC_1251; -.
DR   HOGENOM; CLU_049049_1_1_6; -.
DR   OMA; CPPTFCT; -.
DR   UniPathway; UPA00342; -.
DR   UniPathway; UPA00343; -.
DR   UniPathway; UPA00544; -.
DR   GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR   GO; GO:0016835; F:carbon-oxygen lyase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0097175; P:1,6-anhydro-N-acetyl-beta-muramic acid catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0046348; P:amino sugar catabolic process; IEA:InterPro.
DR   GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0097173; P:N-acetylmuramic acid catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009254; P:peptidoglycan turnover; IEA:UniProtKB-UniRule.
DR   CDD; cd05007; SIS_Etherase; 1.
DR   HAMAP; MF_00068; MurQ; 1.
DR   InterPro; IPR005488; Etherase_MurQ.
DR   InterPro; IPR005486; Glucokinase_regulatory_CS.
DR   InterPro; IPR040190; MURQ/GCKR.
DR   InterPro; IPR001347; SIS_dom.
DR   InterPro; IPR046348; SIS_dom_sf.
DR   PANTHER; PTHR10088; PTHR10088; 1.
DR   PANTHER; PTHR10088:SF5; PTHR10088:SF5; 1.
DR   Pfam; PF01380; SIS; 1.
DR   SUPFAM; SSF53697; SSF53697; 1.
DR   TIGRFAMs; TIGR00274; TIGR00274; 1.
DR   PROSITE; PS01272; GCKR; 1.
DR   PROSITE; PS51464; SIS; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Lyase.
FT   CHAIN           1..298
FT                   /note="N-acetylmuramic acid 6-phosphate etherase"
FT                   /id="PRO_1000075106"
FT   DOMAIN          55..218
FT                   /note="SIS"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        83
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        114
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
SQ   SEQUENCE   298 AA;  31220 MW;  34FE8F878E8B3077 CRC64;
     MQFEKMITEG SNTASAEIDR VSTLEMCRII NDEDKTVPLA VERVLPDIAA AIDVIHAQVS
     GGGRLIYLGA GTSGRLGILD ASECPPTYGV KPGLVVGLIA GGEYAIQHAV EGAEDSREGG
     VNDLKNINLT AQDVVVGIAA SGRTPYVIAG LEYARQLGCR TVGISCNPGS AVSTTAEFAI
     TPIVGAEVVT GSSRMKAGTA QKLVLNMLST GLMIKSGKVF GNLMVDVVAT NEKLHVRQVN
     IVKNATGCSA EQAEAALIAC ERNCKTAIVM VLKNLDAAEA KKRLDQHGGF IRQVLDKE
 
 
维奥蛋白资源库 - 中文蛋白资源 CopyRight © 2010-2024