MURQ_HAES1
ID MURQ_HAES1 Reviewed; 303 AA.
AC Q0I1F8;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 03-OCT-2006, sequence version 1.
DT 25-MAY-2022, entry version 100.
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=HS_0335;
OS Haemophilus somnus (strain 129Pt) (Histophilus somni).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Histophilus.
OX NCBI_TaxID=205914;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=129Pt;
RX PubMed=17172329; DOI=10.1128/jb.01422-06;
RA Challacombe J.F., Duncan A.J., Brettin T.S., Bruce D., Chertkov O.,
RA Detter J.C., Han C.S., Misra M., Richardson P., Tapia R., Thayer N.,
RA Xie G., Inzana T.J.;
RT "Complete genome sequence of Haemophilus somnus (Histophilus somni) strain
RT 129Pt and comparison to Haemophilus ducreyi 35000HP and Haemophilus
RT influenzae Rd.";
RL J. Bacteriol. 189:1890-1898(2007).
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 -!- 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; CP000436; ABI24613.1; -; Genomic_DNA.
DR RefSeq; WP_011608489.1; NC_008309.1.
DR AlphaFoldDB; Q0I1F8; -.
DR SMR; Q0I1F8; -.
DR STRING; 205914.HS_0335; -.
DR EnsemblBacteria; ABI24613; ABI24613; HS_0335.
DR KEGG; hso:HS_0335; -.
DR eggNOG; COG2103; Bacteria.
DR HOGENOM; CLU_049049_1_1_6; -.
DR OMA; TRNPATM; -.
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..303
FT /note="N-acetylmuramic acid 6-phosphate etherase"
FT /id="PRO_1000009119"
FT DOMAIN 62..225
FT /note="SIS"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT ACT_SITE 90
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT ACT_SITE 121
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
SQ SEQUENCE 303 AA; 32611 MW; 10E4A8D95B130831 CRC64;
MNKQNLINQF AQLITEQPNP RSVNLDQMSA LEIVQLMNKE DQQVPLVIAK ALPEIAVVVE
KIVAAFRQGG RLVYLGAGTS GRLGVLDASE CPPTFGVNHE MVKGIIAGGE QAIRYPVEGA
EDNQQAAIVD LQAIQLCSKD ILVGIAASGR TPYVISGLKY AKEIGSFTVA IASNPQSAMA
KIADMSIETI VGPEILTGSS RLKSGTAQKL VLNMLTTASM VLLGKCYQNF MVDVQASNEK
LVDRATRIIM QATGCERAKA EQTLTQADNN AKLAILMILM DLDKQSAVDL LAKNQDKLRQ
TLD
