ID A0A0C4WK15_9GAMM Unreviewed; 780 AA.
AC A0A0C4WK15;
DT 29-APR-2015, integrated into UniProtKB/TrEMBL.
DT 29-APR-2015, sequence version 1.
DT 24-JAN-2024, entry version 40.
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:AJE20306.1};
GN ORFNames=Achr_8120 {ECO:0000313|EMBL:AJE20306.1};
OS Azotobacter chroococcum NCIMB 8003.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Azotobacter.
OX NCBI_TaxID=1328314 {ECO:0000313|EMBL:AJE20306.1, ECO:0000313|Proteomes:UP000068210};
RN [1] {ECO:0000313|EMBL:AJE20306.1, ECO:0000313|Proteomes:UP000068210}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCIMB 8003 {ECO:0000313|EMBL:AJE20306.1,
RC ECO:0000313|Proteomes:UP000068210};
RX PubMed=26061173;
RA Robson R.L., Jones R., Robson R.M., Schwartz A., Richardson T.H.;
RT "Azotobacter Genomes: The Genome of Azotobacter chroococcum NCIMB 8003
RT (ATCC 4412).";
RL PLoS ONE 10:E0127997-E0127997(2015).
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; CP010415; AJE20306.1; -; Genomic_DNA.
DR RefSeq; WP_039802109.1; NZ_CP010415.1.
DR AlphaFoldDB; A0A0C4WK15; -.
DR STRING; 1328314.Achr_8120; -.
DR KEGG; acx:Achr_8120; -.
DR HOGENOM; CLU_006354_2_7_6; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000068210; 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};
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:UP000068210};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 21..43
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 69..151
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 163..334
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 426..665
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
FT ACT_SITE 187
FT /note="Proton donor; for transglycosylase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
FT ACT_SITE 463
FT /note="Acyl-ester intermediate; for transpeptidase
FT activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
SQ SEQUENCE 780 AA; 85561 MW; 999ED83B5063B1DA CRC64;
MTRTRSPKSP SPRRSGALRS WLGWTAKLAL VGLVVLAGFA VYLDAVVQEK FSGKRWTLPA
KVYARPLELF SGLKLSKQDF LTELDALGYR REAVAGPGSA AVSGNTVDLH TRGFRFYEGD
EPARRIRVRF SGDYVAGLSG ADGSDLPVVR MEPLLIGGLY PAHNEDRILV QRNELPPYLV
ETLVAVEDRE FFSHFGVSPK SIVRALWVNA AAGGVVQGGS TLTQQLVKNF YLSNERSLVR
KATEAMMAVL LELHYDKDEI LEAYLNEVFL GQDGNRAVHG FGLASQYFFG QPLAELQPHQ
VALLVGMVKG PTYYNPRRNP ERAMTRRNLV IDLMAEQSVI DAAQAAAAKQ KPLGVTARGS
LANSAHPAFL DLVKRQLRED YQEADLTEEG LRIFTSLDPI LQNKAEAAVH DTFKRIGKGG
DPVEASMVVS NPETGEVLAL LGSRQPRFAG FNRALDAVRP IGSLIKPAIY LTALEKPSQY
TLTSWVADVP FSVKGQDGQL WRPQNYDHQA HGDIYLYQGL ANSYNLSTAK LGLELGVPNV
LKTLARLGVE REWPAYPSML LGAGALTPME VSSMYLTIAS GGFNTPLRGI RSVLDSAGEP
LKRYPFQIQQ RFDPGAIYLL QNAMQRVMRE GTGRSVYSRL PRSLNLAGKT GTTNDSRDSW
FAGFSQDLLA VVWLGRDDNG KTPLTGATGA LRVWTDFMAK ADPLPLDMPV PDNVTEVWVN
ARNGLGSEPG CPDTVQMPYI RGSEPPPGPP CGLPQAPAEN VQDVIENVQD VMDWVRDWSN
//