ID U4KHW7_9VIBR Unreviewed; 304 AA.
AC U4KHW7;
DT 11-DEC-2013, integrated into UniProtKB/TrEMBL.
DT 11-DEC-2013, sequence version 1.
DT 24-JAN-2024, entry version 51.
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 ECO:0000313|EMBL:CCO59914.1};
GN ORFNames=VIBNI_B0081 {ECO:0000313|EMBL:CCO59914.1};
OS Vibrio nigripulchritudo.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=28173 {ECO:0000313|EMBL:CCO59914.1, ECO:0000313|Proteomes:UP000016895};
RN [1] {ECO:0000313|EMBL:CCO59914.1, ECO:0000313|Proteomes:UP000016895}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SnF1 {ECO:0000313|Proteomes:UP000016895};
RX PubMed=23739050; DOI=10.1038/ismej.2013.90;
RA Goudenege D., Labreuche Y., Krin E., Ansquer D., Mangenot S., Calteau A.,
RA Medigue C., Mazel D., Polz M.F., Le Roux F.;
RT "Comparative genomics of pathogenic lineages of Vibrio nigripulchritudo
RT identifies virulence-associated traits.";
RL ISME J. 7:1985-1996(2013).
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: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; 1,6-anhydro-N-acetylmuramate
CC degradation. {ECO:0000256|HAMAP-Rule:MF_00068}.
CC -!- PATHWAY: Amino-sugar metabolism; N-acetylmuramate degradation.
CC {ECO:0000256|HAMAP-Rule:MF_00068}.
CC -!- PATHWAY: Cell wall biogenesis; peptidoglycan recycling.
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; FO203527; CCO59914.1; -; Genomic_DNA.
DR RefSeq; WP_022560593.1; NC_022543.1.
DR AlphaFoldDB; U4KHW7; -.
DR STRING; 28173.VIBNI_B0081; -.
DR KEGG; vni:VIBNI_B0081; -.
DR PATRIC; fig|1260221.3.peg.3770; -.
DR eggNOG; COG2103; Bacteria.
DR OrthoDB; 9813395at2; -.
DR UniPathway; UPA00342; -.
DR UniPathway; UPA00343; -.
DR UniPathway; UPA00544; -.
DR Proteomes; UP000016895; Chromosome 2.
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 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; PF01380; SIS; 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:UP000016895}.
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 304 AA; 31887 MW; CE331DF63869F7AA CRC64;
MNRDELSRLT TESRNPNSAE IDTLSTLEML KVINNEDQKV ALAVKDVLPQ IAEAVDAITN
ALANNGRLIY TGAGTSGRLG ILDASECPPT YGTSPDLVVG VIAGGRQAIL NAVENAEDNV
SMGKQDLMQI KLSNRDVVVG IAASGQTPYV LSGLDYANEL GATTVSISCN EASAMADVAD
IAITPIVGPE VVTGSSRMKA GTAQKLVLNM LTTGAMIRSG KVFGNLMVNV EANNAKLVQR
QINIVVEATG VSADEASQAL EQCGRQCKTA IFMILAGLDA EQAKSRLKEH NGFIRSALAA
QQSL
//
