MLTF_SALPB
ID MLTF_SALPB Reviewed; 514 AA.
AC A9N1U5;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 74.
DE RecName: Full=Membrane-bound lytic murein transglycosylase F {ECO:0000255|HAMAP-Rule:MF_02016};
DE EC=4.2.2.n1 {ECO:0000255|HAMAP-Rule:MF_02016};
DE AltName: Full=Murein lyase F {ECO:0000255|HAMAP-Rule:MF_02016};
DE Flags: Precursor;
GN Name=mltF {ECO:0000255|HAMAP-Rule:MF_02016}; OrderedLocusNames=SPAB_00359;
OS Salmonella paratyphi B (strain ATCC BAA-1250 / SPB7).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=1016998;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1250 / SPB7;
RG The Salmonella enterica serovar Paratyphi B Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA Fulton R., Cordes M., Wollam A., Shah N., Pepin K., Bhonagiri V., Nash W.,
RA Johnson M., Thiruvilangam P., Wilson R.;
RL Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Murein-degrading enzyme that degrades murein glycan strands
CC and insoluble, high-molecular weight murein sacculi, with the
CC concomitant formation of a 1,6-anhydromuramoyl product. Lytic
CC transglycosylases (LTs) play an integral role in the metabolism of the
CC peptidoglycan (PG) sacculus. Their lytic action creates space within
CC the PG sacculus to allow for its expansion as well as for the insertion
CC of various structures such as secretion systems and flagella.
CC {ECO:0000255|HAMAP-Rule:MF_02016}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Exolytic cleavage of the (1->4)-beta-glycosidic linkage
CC between N-acetylmuramic acid (MurNAc) and N-acetylglucosamine
CC (GlcNAc) residues in peptidoglycan, from either the reducing or the
CC non-reducing ends of the peptidoglycan chains, with concomitant
CC formation of a 1,6-anhydrobond in the MurNAc residue.; EC=4.2.2.n1;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_02016};
CC -!- SUBCELLULAR LOCATION: Cell outer membrane; Peripheral membrane protein.
CC Note=Attached to the inner leaflet of the outer membrane.
CC {ECO:0000255|HAMAP-Rule:MF_02016}.
CC -!- DOMAIN: The N-terminal domain does not have lytic activity and probably
CC modulates enzymatic activity. The C-terminal domain is the catalytic
CC active domain. {ECO:0000255|HAMAP-Rule:MF_02016}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the bacterial solute-
CC binding protein 3 family. {ECO:0000255|HAMAP-Rule:MF_02016}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the transglycosylase
CC Slt family. {ECO:0000255|HAMAP-Rule:MF_02016}.
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DR EMBL; CP000886; ABX65795.1; -; Genomic_DNA.
DR RefSeq; WP_000734252.1; NC_010102.1.
DR AlphaFoldDB; A9N1U5; -.
DR SMR; A9N1U5; -.
DR CAZy; GH23; Glycoside Hydrolase Family 23.
DR KEGG; spq:SPAB_00359; -.
DR PATRIC; fig|1016998.12.peg.341; -.
DR HOGENOM; CLU_027494_0_1_6; -.
DR OMA; YYDILTW; -.
DR BioCyc; SENT1016998:SPAB_RS01480-MON; -.
DR Proteomes; UP000008556; Chromosome.
DR GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016837; F:carbon-oxygen lyase activity, acting on polysaccharides; IEA:InterPro.
DR GO; GO:0008933; F:lytic transglycosylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016998; P:cell wall macromolecule catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR GO; GO:0000270; P:peptidoglycan metabolic process; IEA:InterPro.
DR HAMAP; MF_02016; MltF; 1.
DR InterPro; IPR023346; Lysozyme-like_dom_sf.
DR InterPro; IPR023703; MltF.
DR InterPro; IPR001638; Solute-binding_3/MltF_N.
DR InterPro; IPR000189; Transglyc_AS.
DR InterPro; IPR008258; Transglycosylase_SLT_dom_1.
DR Pfam; PF00497; SBP_bac_3; 1.
DR Pfam; PF01464; SLT; 1.
DR SMART; SM00062; PBPb; 1.
DR SUPFAM; SSF53955; SSF53955; 1.
DR PROSITE; PS00922; TRANSGLYCOSYLASE; 1.
PE 3: Inferred from homology;
KW Cell outer membrane; Cell wall biogenesis/degradation; Lyase; Membrane;
KW Signal.
FT SIGNAL 1..30
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
FT CHAIN 31..514
FT /note="Membrane-bound lytic murein transglycosylase F"
FT /id="PRO_0000353973"
FT REGION 31..269
FT /note="Non-LT domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
FT REGION 270..514
FT /note="LT domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
FT ACT_SITE 314
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
SQ SEQUENCE 514 AA; 58013 MW; 94EDE70958F4D6A8 CRC64;
MKKLKINYLF IGILTLLLAA ALWPSIPWFG KTENHIAAIQ ARGVLRVSTI DSPLTYSVIN
GKKYGLDYEL AQQFANYLGV KLKVTVRQNI SQLFDDLDSG NADLLAAGLV YDSARVKNYQ
PGPMYYSVSQ QLVYRVGQYR PRSLATVNEN QLTIAPGHVV VNDLQRLKET KFPDLSWKVD
DKKGSTTLLE EVISGKLDYT IADSVAISLF QRVHPELAVA LDVTDEQPVT WFSRLDDDNT
LSAALLDFFN SINEDGSLAR IEEKYLGHGD DFDYVDTRSF LRAVDNVLPE LEPLFKKYAK
EIDWRLLAAI SYQESHWDPL ATSPTGVRGL MMLTKNTAQS LGLTDRTDAE QSISGGARYL
EDMMAKVPET VPEDERIWFA LAAYNMGYAH MLDARSLTVK TKGNPDSWTD VKQRLPLLSQ
KPYYSKLTYG YARGHEAYAY VENIRKYQIS LVGYLQEKEK QEAEAMKLAQ DYPAVSPEEL
NKAPFPFLSF LSQSSGYLTH SPSLLFTPQK KEEK
