ID Q493N8_BLOPB Unreviewed; 778 AA.
AC Q493N8;
DT 13-SEP-2005, integrated into UniProtKB/TrEMBL.
DT 13-SEP-2005, sequence version 1.
DT 27-MAR-2024, entry version 106.
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:AAZ40799.1};
GN OrderedLocusNames=BPEN_159 {ECO:0000313|EMBL:AAZ40799.1};
OS Blochmannia pennsylvanicus (strain BPEN).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; ant endosymbionts; Blochmannia.
OX NCBI_TaxID=291272 {ECO:0000313|EMBL:AAZ40799.1, ECO:0000313|Proteomes:UP000007794};
RN [1] {ECO:0000313|EMBL:AAZ40799.1, ECO:0000313|Proteomes:UP000007794}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BPEN {ECO:0000313|EMBL:AAZ40799.1,
RC ECO:0000313|Proteomes:UP000007794};
RX PubMed=16077009; DOI=10.1101/gr.3771305;
RA Degnan P.H., Lazarus A.B., Wernegreen J.J.;
RT "Genome sequence of Blochmannia pennsylvanicus indicates parallel
RT evolutionary trends among bacterial mutualists of insects.";
RL Genome Res. 15:1023-1033(2005).
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}.
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; CP000016; AAZ40799.1; -; Genomic_DNA.
DR RefSeq; WP_011282706.1; NC_007292.1.
DR AlphaFoldDB; Q493N8; -.
DR STRING; 291272.BPEN_159; -.
DR CAZy; GT51; Glycosyltransferase Family 51.
DR KEGG; bpn:BPEN_159; -.
DR eggNOG; COG0744; Bacteria.
DR HOGENOM; CLU_006354_2_7_6; -.
DR OrthoDB; 9766909at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000007794; 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; 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};
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 Reference proteome {ECO:0000313|Proteomes:UP000007794};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799, ECO:0000313|EMBL:AAZ40799.1};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 16..40
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 68..150
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 163..333
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 424..667
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
SQ SEQUENCE 778 AA; 88890 MW; 929B62AEA95AA71C CRC64;
MNQLSYKCHS VIVQRALFFL YTVMCFFFFI IALIIAYGIF LDKKVQSRID GKVWRLPTII
YSRMINVEPN MSYHKNDIIH LLETLQYRQV SKITHSGEFV VHNNDIELFR RPFNFPSGEE
GEMHVSFFFN QKKLLRIYNQ DTKNNFGLFR FDPKIISILY APNKQQRLFV PRSGFPDILI
DMLLAVEDRY FYQHDGIQIS SIGRAFLANV FSGRTVQGGS TLTQQLVKNL FLNNTRSLWR
KFNEAYMALI FDHRYSKDRI LELYLNEIYF GQNGNDQIHG FPLASFYYFG RPINELSIDQ
QAMLVGMIKG ASLYNPWKNP HITLERRNLI LKLLEHRDII DKKMCAILSA RPLGTQPKDE
ILILQPAFTQ MVNKEIQNID RINDFSGIKI FTTLDPISQK AAEQAMELGI HKLRHYYNVK
DLEGAIVVVD RFSGKIRAMV GGSDPHFSGF NRAMHARRSI GSLAKPAIYL AALSHPDKYH
LNTWIADEPI HLQQPNGVIW SPKNYDRKFR GKVTLIDAFI KSLNVPTVNL GMTIGLDAIS
DVLKKLGISP NFISSFPSIL LGSISLTPIE VAQEFQTIAS GGQYSALSSV CYIMNEEDIV
LYQNFTKTER VIFPQAAYLT LYAMQQVATR GTSCILSLKF PCSQLAAKTG TTNDLRDSWF
VGIDDTEVTV IWIGRDNNGR TKLTGTNGAL TLYNLYLDNK NPTPLHLELP SGIKYIPIDN
CGNFTLHDSK NNGCQVLPVW VNDWQLLFQS LKESKIISYN QQPINTVAEQ GITIQMNR
//
