MLTF_SHIF8
ID MLTF_SHIF8 Reviewed; 518 AA.
AC Q0T1W2;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 2.
DT 03-AUG-2022, entry version 89.
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=SFV_2606;
OS Shigella flexneri serotype 5b (strain 8401).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Shigella.
OX NCBI_TaxID=373384;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=8401;
RX PubMed=16822325; DOI=10.1186/1471-2164-7-173;
RA Nie H., Yang F., Zhang X., Yang J., Chen L., Wang J., Xiong Z., Peng J.,
RA Sun L., Dong J., Xue Y., Xu X., Chen S., Yao Z., Shen Y., Jin Q.;
RT "Complete genome sequence of Shigella flexneri 5b and comparison with
RT Shigella flexneri 2a.";
RL BMC Genomics 7:173-173(2006).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABF04703.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000266; ABF04703.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_000734232.1; NC_008258.1.
DR AlphaFoldDB; Q0T1W2; -.
DR SMR; Q0T1W2; -.
DR CAZy; GH23; Glycoside Hydrolase Family 23.
DR EnsemblBacteria; ABF04703; ABF04703; SFV_2606.
DR KEGG; sfv:SFV_2606; -.
DR HOGENOM; CLU_027494_0_1_6; -.
DR BioCyc; SFLE373384:SFV_RS14480-MON; -.
DR Proteomes; UP000000659; 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..21
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
FT CHAIN 22..518
FT /note="Membrane-bound lytic murein transglycosylase F"
FT /id="PRO_0000353985"
FT REGION 22..269
FT /note="Non-LT domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02016"
FT REGION 270..518
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 518 AA; 58331 MW; 1C234D603CD97A46 CRC64;
MKKLKINYLF IGILALLLAV ALWPSIPWFG KADNRIAAIQ ARGELRVSTI HTPLTYNKIN
GKPFGLDYEL AKQFADYLGV KLKVTVRQNI SQLFDDLDNG NADLLAAGLV YNSERVKNYQ
PSPTYYSVSQ QLVYKVGQYR PRTLGNLTAE QLTVAPGHVV VNDLQTLKET KFPELSWKVD
DKKGSAELME DVIEGKLDYT IADSVAISLF QRVHPELAVA LDITDEQPVT WFSPLDGDNT
LSAALLDFFN EMNEDGTLAR IEEKYLGHGD DFDYVDTRTF LRAVDAVLPQ LKPLFEKYAE
EIDWRLLAAI AYQESHWDAQ ATSPTGVRGM MMLTKNTAQS LGITDRTDAE QSISGGVRYL
QDMMSKVPES VPENERIWFA LAAYNMGYAH MLDARALTAK TKGNPDSWAD VKQRLPLLSQ
KPYYSKLTYG YARGHEAYAY VENIRKYQIS LVGYLQEKEK QATEAAMQLA QDYPAVSPTE
LGKEKFPFLS FLSQSSSNYL THSPSLLFSR KGSEEKQN
