ID B4EUE0_PROMH Unreviewed; 770 AA.
AC B4EUE0;
DT 23-SEP-2008, integrated into UniProtKB/TrEMBL.
DT 23-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 93.
DE RecName: Full=Penicillin-binding protein 1B {ECO:0000256|ARBA:ARBA00018637, ECO:0000256|PIRNR:PIRNR002799};
DE Short=PBP-1b {ECO:0000256|PIRNR:PIRNR002799};
DE Short=PBP1b {ECO:0000256|PIRNR:PIRNR002799};
DE AltName: Full=Murein polymerase {ECO:0000256|ARBA:ARBA00032454, ECO:0000256|PIRNR:PIRNR002799};
GN Name=mrcB {ECO:0000313|EMBL:CAR40591.1};
GN OrderedLocusNames=PMI0204 {ECO:0000313|EMBL:CAR40591.1};
OS Proteus mirabilis (strain HI4320).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Proteus.
OX NCBI_TaxID=529507 {ECO:0000313|EMBL:CAR40591.1, ECO:0000313|Proteomes:UP000008319};
RN [1] {ECO:0000313|EMBL:CAR40591.1, ECO:0000313|Proteomes:UP000008319}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HI4320 {ECO:0000313|EMBL:CAR40591.1,
RC ECO:0000313|Proteomes:UP000008319};
RX PubMed=18375554; DOI=10.1128/JB.01981-07;
RA Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S.,
RA Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T.,
RA Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N.,
RA Parkhill J., Mobley H.L.;
RT "Complete genome sequence of uropathogenic Proteus mirabilis, a master of
RT both adherence and motility.";
RL J. Bacteriol. 190:4027-4037(2008).
CC -!- FUNCTION: Cell wall formation. Synthesis of cross-linked peptidoglycan
CC from the lipid intermediates. The enzyme has a penicillin-insensitive
CC transglycosylase N-terminal domain (formation of linear glycan strands)
CC and a penicillin-sensitive transpeptidase C-terminal domain (cross-
CC linking of the peptide subunits). {ECO:0000256|ARBA:ARBA00002624,
CC ECO:0000256|PIRNR:PIRNR002799}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-
CC Ala)](n)-di-trans,octa-cis-undecaprenyl diphosphate + beta-D-GlcNAc-
CC (1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-di-trans,octa-
CC cis-undecaprenyl diphosphate = [GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-
CC D-Glu-L-Lys-D-Ala-D-Ala)](n+1)-di-trans-octa-cis-undecaprenyl
CC diphosphate + di-trans,octa-cis-undecaprenyl diphosphate + H(+);
CC Xref=Rhea:RHEA:23708, Rhea:RHEA-COMP:9602, Rhea:RHEA-COMP:9603,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58405, ChEBI:CHEBI:60033,
CC ChEBI:CHEBI:78435; EC=2.4.1.129;
CC Evidence={ECO:0000256|ARBA:ARBA00023988};
CC -!- PATHWAY: Cell wall biogenesis; peptidoglycan biosynthesis.
CC {ECO:0000256|ARBA:ARBA00004752, ECO:0000256|PIRNR:PIRNR002799}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the transpeptidase
CC family. {ECO:0000256|ARBA:ARBA00007090, ECO:0000256|PIRNR:PIRNR002799}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the
CC glycosyltransferase 51 family. {ECO:0000256|ARBA:ARBA00007739,
CC ECO:0000256|PIRNR:PIRNR002799}.
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DR EMBL; AM942759; CAR40591.1; -; Genomic_DNA.
DR RefSeq; WP_004244995.1; NC_010554.1.
DR AlphaFoldDB; B4EUE0; -.
DR CAZy; GT51; Glycosyltransferase Family 51.
DR EnsemblBacteria; CAR40591; CAR40591; PMI0204.
DR GeneID; 6801396; -.
DR KEGG; pmr:PMI0204; -.
DR eggNOG; COG0744; Bacteria.
DR HOGENOM; CLU_006354_2_7_6; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000008319; Chromosome.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0009274; C:peptidoglycan-based cell wall; IEA:UniProtKB-UniRule.
DR GO; GO:0008658; F:penicillin binding; IEA:InterPro.
DR GO; GO:0008955; F:peptidoglycan glycosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009002; F:serine-type D-Ala-D-Ala carboxypeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-UniRule.
DR GO; GO:0009252; P:peptidoglycan biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR GO; GO:0008360; P:regulation of cell shape; IEA:UniProtKB-UniRule.
DR GO; GO:0046677; P:response to antibiotic; IEA:InterPro.
DR Gene3D; 1.10.3810.10; Biosynthetic peptidoglycan transglycosylase-like; 1.
DR Gene3D; 1.20.5.100; Cytochrome c1, transmembrane anchor, C-terminal; 1.
DR Gene3D; 3.40.710.10; DD-peptidase/beta-lactamase superfamily; 1.
DR Gene3D; 3.30.2060.10; Penicillin-binding protein 1b domain; 1.
DR InterPro; IPR012338; Beta-lactam/transpept-like.
DR InterPro; IPR001264; Glyco_trans_51.
DR InterPro; IPR023346; Lysozyme-like_dom_sf.
DR InterPro; IPR011813; PBP_1b.
DR InterPro; IPR036950; PBP_transglycosylase.
DR InterPro; IPR001460; PCN-bd_Tpept.
DR InterPro; IPR028166; UB2H.
DR NCBIfam; TIGR02071; PBP_1b; 1.
DR PANTHER; PTHR32282; BINDING PROTEIN TRANSPEPTIDASE, PUTATIVE-RELATED; 1.
DR PANTHER; PTHR32282:SF11; PENICILLIN-BINDING PROTEIN 1B; 1.
DR Pfam; PF00912; Transgly; 1.
DR Pfam; PF00905; Transpeptidase; 1.
DR Pfam; PF14814; UB2H; 1.
DR PIRSF; PIRSF002799; PBP_1b; 1.
DR SUPFAM; SSF56601; beta-lactamase/transpeptidase-like; 1.
DR SUPFAM; SSF53955; Lysozyme-like; 1.
PE 3: Inferred from homology;
KW Carboxypeptidase {ECO:0000256|ARBA:ARBA00022645};
KW Cell shape {ECO:0000256|PIRNR:PIRNR002799};
KW Cell wall biogenesis/degradation {ECO:0000256|PIRNR:PIRNR002799};
KW Glycosyltransferase {ECO:0000256|PIRNR:PIRNR002799};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000313|EMBL:CAR40591.1};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268};
KW Peptidoglycan synthesis {ECO:0000256|PIRNR:PIRNR002799};
KW Protease {ECO:0000256|ARBA:ARBA00022670};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 20..40
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 65..149
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 160..332
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 424..674
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
SQ SEQUENCE 770 AA; 85765 MW; 7AF80D89DF59ABE1 CRC64;
MSRKKKPVKK TNRRRSWFWL FVKIAIVVAV LVGIYGVYLY SQIKERLDGN VWELPAAVYG
RTVNLEPGMN YSQKEMVSLL EGMQYRHVNK ITRPGEFVVK NGTIEMLRRP FDFPDGREEQ
ILAKLTFEQN SLVSITNMNN QRQFGFFRLD PKLITMMQSA NGEQRLFLAR DKFPQLLVDT
LIATEDRRFY EHDGISIYSI GRAVLANFTA GRAVQGGSTL TQQLVKNLFL TNERTLKRKL
NEAYMAIIMD ASYSKDRILE LYLNEVFLGQ SGDEQIRGFP LASLYYFGRP VDELSLDQQA
LLVGMVKGAS AYNPWRNPKA ALERRNVVLK LLQTQQIIDQ ELYDVLSARP LGVKPRSEAL
TPQPAFMQLV RQELQTKLGD QVKDLSGTKI FTTLDPVSQD AAEKAVEAGV ADLRKTRKIN
DLEGAMVVVD RLSGEVRALV GGSQPQYAGF NRAMSARRSI GSLAKPATYL TALSEPERFR
LNTWLADEPI SVPIPGGKPW QPRNYDRGYK GRLMLVDALA TSRNVPTVNL GLEVGLDQVI
KTWIKLGAPA ENLEKVPAML LGALNLTPME VAQTFQTIGS LGNRAKLSAL RSVINQDGTV
LYQSYPQAET TVSPQAAYMT LFGMQQVVNS GTAARALKPK FGQYNLAGKT GTTNDLRDSW
FAGIDGKEVT IAWMGRDNNG PTNLTGSTGA LILYRHYLEN QTPLTLNPPV PEDIAQMSIN
AEGNFVCYGG GVRTLPVWTA DPDSLCTPLP QESDGDDSAA PKWLRDLFSE
//
