ID C9A9T2_ENTCA Unreviewed; 302 AA.
AC C9A9T2;
DT 03-NOV-2009, integrated into UniProtKB/TrEMBL.
DT 03-NOV-2009, sequence version 1.
DT 24-JAN-2024, entry version 73.
DE RecName: Full=N-acetylmuramic acid 6-phosphate etherase {ECO:0000256|HAMAP-Rule:MF_00068};
DE Short=MurNAc-6-P etherase {ECO:0000256|HAMAP-Rule:MF_00068};
DE EC=4.2.1.126 {ECO:0000256|HAMAP-Rule:MF_00068};
DE AltName: Full=N-acetylmuramic acid 6-phosphate hydrolase {ECO:0000256|HAMAP-Rule:MF_00068};
DE AltName: Full=N-acetylmuramic acid 6-phosphate lyase {ECO:0000256|HAMAP-Rule:MF_00068};
GN Name=murQ {ECO:0000256|HAMAP-Rule:MF_00068};
GN ORFNames=ECBG_01512 {ECO:0000313|EMBL:EEV39243.1};
OS Enterococcus casseliflavus EC20.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Enterococcaceae;
OC Enterococcus.
OX NCBI_TaxID=565655 {ECO:0000313|EMBL:EEV39243.1, ECO:0000313|Proteomes:UP000012675};
RN [1] {ECO:0000313|EMBL:EEV39243.1, ECO:0000313|Proteomes:UP000012675}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EC20 {ECO:0000313|EMBL:EEV39243.1,
RC ECO:0000313|Proteomes:UP000012675};
RG The Broad Institute Genome Sequencing Platform;
RA Feldgarden M., Young S.K., Kodira C.D., Zeng Q., Koehrsen M., Alvarado L.,
RA Berlin A., Borenstein D., Chen Z., Engels R., Freedman E., Gellesch M.,
RA Goldberg J., Griggs A., Gujja S., Heiman D., Hepburn T., Howarth C.,
RA Jen D., Larson L., Lewis B., Mehta T., Park D., Pearson M., Roberts A.,
RA Saif S., Shea T., Shenoy N., Sisk P., Stolte C., Sykes S., Walk T.,
RA White J., Yandava C., Gilmore M., Manson J., Palmer K., Carniol K.,
RA Lander E., Nusbaum C., Galagan J., Birren B.;
RL Submitted (FEB-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:EEV39243.1, ECO:0000313|Proteomes:UP000012675}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EC20 {ECO:0000313|EMBL:EEV39243.1,
RC ECO:0000313|Proteomes:UP000012675};
RG The Broad Institute Genomics Platform;
RG The Broad Institute Genome Sequencing Center for Infectious Disease;
RA Russ C., Feldgarden M., Gilmore M., Manson J., Palmer K., Carniol K.,
RA Walker B., Young S.K., Zeng Q., Gargeya S., Fitzgerald M., Haas B.,
RA Abouelleil A., Allen A.W., Alvarado L., Arachchi H.M., Berlin A.M.,
RA Chapman S.B., Gainer-Dewar J., Goldberg J., Griggs A., Gujja S., Hansen M.,
RA Howarth C., Imamovic A., Ireland A., Larimer J., McCowan C., Murphy C.,
RA Pearson M., Poon T.W., Priest M., Roberts A., Saif S., Shea T., Sisk P.,
RA Sykes S., Wortman J., Nusbaum C., Birren B.;
RT "The Genome Sequence of Enterococcus casseliflavus EC20 (899205).";
RL Submitted (MAR-2013) 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. {ECO:0000256|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:0000256|HAMAP-
CC Rule:MF_00068};
CC -!- PATHWAY: Amino-sugar metabolism; N-acetylmuramate degradation.
CC {ECO:0000256|HAMAP-Rule:MF_00068}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|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:0000256|HAMAP-Rule:MF_00068}.
CC -!- SIMILARITY: Belongs to the GCKR-like family. MurNAc-6-P etherase
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_00068}.
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DR EMBL; CP004856; EEV39243.1; -; Genomic_DNA.
DR RefSeq; WP_005227213.1; NZ_AKCC01000001.1.
DR AlphaFoldDB; C9A9T2; -.
DR GeneID; 15140959; -.
DR KEGG; ecas:ECBG_01512; -.
DR eggNOG; COG2103; Bacteria.
DR HOGENOM; CLU_049049_1_1_9; -.
DR UniPathway; UPA00342; -.
DR Proteomes; UP000012675; Chromosome.
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: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 CDD; cd05007; SIS_Etherase; 1.
DR Gene3D; 1.10.8.1080; -; 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 NCBIfam; TIGR00274; N-acetylmuramic acid 6-phosphate etherase; 1.
DR PANTHER; PTHR10088; GLUCOKINASE REGULATORY PROTEIN; 1.
DR PANTHER; PTHR10088:SF4; GLUCOKINASE REGULATORY PROTEIN; 1.
DR Pfam; PF13580; SIS_2; 1.
DR SUPFAM; SSF53697; SIS domain; 1.
DR PROSITE; PS01272; GCKR; 1.
DR PROSITE; PS51464; SIS; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism {ECO:0000256|ARBA:ARBA00023277, ECO:0000256|HAMAP-
KW Rule:MF_00068};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00068};
KW Reference proteome {ECO:0000313|Proteomes:UP000012675}.
FT DOMAIN 58..221
FT /note="SIS"
FT /evidence="ECO:0000259|PROSITE:PS51464"
FT ACT_SITE 86
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
FT ACT_SITE 117
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
SQ SEQUENCE 302 AA; 32303 MW; DB16813AECB7442E CRC64;
MNKINLDKLT TERRNSETSN LDEMTILEAC QKMNQEDQKV AYAVEKEIPS IEKVIEQTIV
AFKKGGRLIY LGAGTSGRLG VLDAAECVPT FGVSPEMVVG LIAGGEEAMT VAVEGAEDSL
TLGKQDLIDL KLNQNDMVIG IAASGRTPYV IGALDYANEL GATTATIACN KDAEISQHAS
FPIEVDCGPE FLTGSTRLKS GTAQKLILNM ISTLSMVGIG KVYNNLMVDV KATNEKLVER
SKRIIMQATE ADYETAAAAF EEADQNVKLA IVMLLTDSTK DEAQAKLATA QGFVKTALGG
EK
//
