ID G4QJG0_GLANF Unreviewed; 777 AA.
AC G4QJG0;
DT 14-DEC-2011, integrated into UniProtKB/TrEMBL.
DT 14-DEC-2011, sequence version 1.
DT 24-JAN-2024, entry version 66.
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:AEP28566.1};
GN OrderedLocusNames=GNIT_0412 {ECO:0000313|EMBL:AEP28566.1};
OS Glaciecola nitratireducens (strain JCM 12485 / KCTC 12276 / FR1064).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Alteromonadaceae; Glaciecola.
OX NCBI_TaxID=1085623 {ECO:0000313|EMBL:AEP28566.1, ECO:0000313|Proteomes:UP000009282};
RN [1] {ECO:0000313|EMBL:AEP28566.1, ECO:0000313|Proteomes:UP000009282}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 12485 / KCTC 12276 / FR1064
RC {ECO:0000313|Proteomes:UP000009282};
RX PubMed=22123761; DOI=10.1128/JB.06296-11;
RA Bian F., Qin Q.L., Xie B.B., Shu Y.L., Zhang X.Y., Yu Y., Chen B.,
RA Chen X.L., Zhou B.C., Zhang Y.Z.;
RT "Complete genome sequence of seawater bacterium Glaciecola nitratireducens
RT FR1064T.";
RL J. Bacteriol. 193:7006-7007(2011).
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; CP003060; AEP28566.1; -; Genomic_DNA.
DR RefSeq; WP_014107444.1; NC_016041.1.
DR AlphaFoldDB; G4QJG0; -.
DR STRING; 1085623.GNIT_0412; -.
DR KEGG; gni:GNIT_0412; -.
DR eggNOG; COG0744; Bacteria.
DR HOGENOM; CLU_006354_2_7_6; -.
DR OrthoDB; 9766909at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000009282; 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:UP000009282};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 21..38
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 62..136
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 165..333
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 429..668
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
FT ACT_SITE 188
FT /note="Proton donor; for transglycosylase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
FT ACT_SITE 466
FT /note="Acyl-ester intermediate; for transpeptidase
FT activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
SQ SEQUENCE 777 AA; 86445 MW; 33FFF9F965D299D8 CRC64;
MKIKELPLLP FRWLKRHFWK LFIVALAASV SYVIYVDAQV KQRFEGNKWQ VPAQIFARPL
TLQVKQEITI AEVKDELSLL GYRRVSAAKL TGEYQTYSNQ LRIQRRAFHF PNGYEPERDI
RITWQGERIA KIEYLIGKGA NPTAKSIALT RLEPWLVSRL VSGLDEDRML VGKDDIPLLL
QKALVIVEDR DFYQHHGVAP TSIIRAFFAN IVAGRTVQGG STLTQQLAKN FFLTRERSYI
RKAKEAVMAV VIDARYSKEE IINAYINEVF LGQNGAVAVH GFGLASHFYF DKPLPELNTP
EIATLIGLVK GPSFYSPSKH PERALERRNI VLRLLFEANE INSDEYAGFV AAPLNTASSE
SLASGKHPAF MDKVRDELNA VISRRAEQLS GVKLYTTLDI NAQRRAEAAV KEQVDRIAQK
REQPDLEAAM VVSDVQSGEI RAIVGGKKAG FSGFNRALNA YRPIGSLVKP AVYLSALEDP
EHYNLATMLE DTPVKMRSTG GKYWEPLNSD KEFRGQVSLI EALTKSYNVP SVKLGMAVGL
EEVAYTINRL GVDKEITLVP ALTLGAIDLS PLQVNQMYQT IANNGVMNQL HSLTAVTSNE
NELLYLRDVE SEIRADESAT YLVNYALHKV TLEGTAKAVR EAFPNINMAG KTGTTNDYRD
SWFAGFDRNL VTSVWMGSDD NAPVNLSGAS GAMQVFIAFQ KKQSPKNLSR RFPDGLGIAH
FDAKTGELSA PGCGDILSVP AILSALPENA RGCDGQPAVR MQPKKKEKSF WEKLFGE
//