ID A0A290XD23_9GAMM Unreviewed; 822 AA.
AC A0A290XD23;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
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:ATD66983.1};
GN ORFNames=CNR27_05610 {ECO:0000313|EMBL:ATD66983.1};
OS Luteimonas chenhongjianii.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Luteimonas.
OX NCBI_TaxID=2006110 {ECO:0000313|EMBL:ATD66983.1, ECO:0000313|Proteomes:UP000218968};
RN [1] {ECO:0000313|Proteomes:UP000218968}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=100111 {ECO:0000313|Proteomes:UP000218968};
RA Gui Z.;
RT "Luteimonas liuhanmingii sp.nov., isolated from the intestinal contents of
RT Tibetan Plateau Pika in Yushu, Qinghai Province, China.";
RL Submitted (SEP-2017) to the EMBL/GenBank/DDBJ databases.
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; CP023406; ATD66983.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A290XD23; -.
DR KEGG; lum:CNR27_05610; -.
DR OrthoDB; 9766909at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000218968; 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:UP000218968};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 26..47
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 75..157
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 163..342
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 437..689
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
FT REGION 785..822
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 805..822
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 193
FT /note="Proton donor; for transglycosylase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
FT ACT_SITE 473
FT /note="Acyl-ester intermediate; for transpeptidase
FT activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR002799-1"
SQ SEQUENCE 822 AA; 89435 MW; 3CBD0D6C27260068 CRC64;
MARIDYEDDD TDDPTEDAPP AWRRRVVTAV LALLALGLGF LIPYTIYLNH QVSEKFDALT
WQVPTRVYAR PLQVTPGMAM NAATLKTELD AAGYREGDGV KPGTYATEGG RWTISSRGYR
DVDRVVAPGR VQLTLSGGRV SRLRDGGGER ALEVARMDPA RIATLYGQRQ EERRLVRIDE
VPPLLTDTLQ AVEDKDFAHH HGIDLSGMAR AAMVNLRAGE TRQGASTLTQ QLARSGLLGI
GREQTYTRKF NEILYAMLIE ARYGKGPILE AYLNQVYLGQ RGAQAIHGVA AGAEFWFGRR
LDDLEIEQVA LLVGIIRGPS YYDPRRHPER ALERRNFVLD KMLESGLIDQ AAHDRAIKRP
LGVTETPGSI AANRFPAYVD LVRRQLARDY PAGDLQGAGL SVMSAMAPSA QAYAEGATVR
TIKDLSTGKR PPLQAGLLVT DVHSGEVVAA VGSRDPVEHG FNRAVEAQRP VGSLLKPFVY
LLALGNPTQY SLASWVDDSP VTITLENGRK WSPGNSDGRS HGTVRLIDAL ARSYNQATVR
IGEAVGTRAL ADLVHVLAGV RATPNPSLTL GSMDQSPYAM AQLYQFLASG GEIQPLRSVR
GVIDEQGRVL SRYDNAPRPA QEGDAIAARL VTIGLQEAVT SGTGRQLVND GLGRLNAAGK
TGTSNDGRDS WFAGWTGDHL AVVWVGNDQN EQTGLYGATG AMRIWSGMFA RLPSAPLEVS
NDGLEWKWIV QSNSTDADCP GARRFAFVSG YAPPYQPCRV YDPEQTFIDE NGNLVDATGA
PVQQERRGWR EWFGFGRDEP EAPPAETAPS QPAPVPSPEE SP
//