ID Q4FRP2_PSYA2 Unreviewed; 827 AA.
AC Q4FRP2;
DT 30-AUG-2005, integrated into UniProtKB/TrEMBL.
DT 30-AUG-2005, sequence version 1.
DT 27-MAR-2024, entry version 122.
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:AAZ19316.1};
GN OrderedLocusNames=Psyc_1468 {ECO:0000313|EMBL:AAZ19316.1};
OS Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Psychrobacter.
OX NCBI_TaxID=259536 {ECO:0000313|EMBL:AAZ19316.1, ECO:0000313|Proteomes:UP000000546};
RN [1] {ECO:0000313|EMBL:AAZ19316.1, ECO:0000313|Proteomes:UP000000546}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17307 / VKM B-2377 / 273-4
RC {ECO:0000313|Proteomes:UP000000546};
RX PubMed=20154119; DOI=10.1128/AEM.02101-09;
RA Ayala-del-Rio H.L., Chain P.S., Grzymski J.J., Ponder M.A., Ivanova N.,
RA Bergholz P.W., Di Bartolo G., Hauser L., Land M., Bakermans C.,
RA Rodrigues D., Klappenbach J., Zarka D., Larimer F., Richardson P.,
RA Murray A., Thomashow M., Tiedje J.M.;
RT "The genome sequence of Psychrobacter arcticus 273-4, a psychroactive
RT Siberian permafrost bacterium, reveals mechanisms for adaptation to low-
RT temperature growth.";
RL Appl. Environ. Microbiol. 76:2304-2312(2010).
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; CP000082; AAZ19316.1; -; Genomic_DNA.
DR RefSeq; WP_011280734.1; NC_007204.1.
DR AlphaFoldDB; Q4FRP2; -.
DR STRING; 259536.Psyc_1468; -.
DR CAZy; GT51; Glycosyltransferase Family 51.
DR KEGG; par:Psyc_1468; -.
DR eggNOG; COG0744; Bacteria.
DR HOGENOM; CLU_006354_2_7_6; -.
DR OrthoDB; 9766909at2; -.
DR UniPathway; UPA00219; -.
DR Proteomes; UP000000546; 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; TIGR02074; PBP_1a_fam; 1.
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:UP000000546};
KW Transferase {ECO:0000256|PIRNR:PIRNR002799};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 26..48
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 76..160
FT /note="Bifunctional transglycosylase second"
FT /evidence="ECO:0000259|Pfam:PF14814"
FT DOMAIN 172..342
FT /note="Glycosyl transferase family 51"
FT /evidence="ECO:0000259|Pfam:PF00912"
FT DOMAIN 436..680
FT /note="Penicillin-binding protein transpeptidase"
FT /evidence="ECO:0000259|Pfam:PF00905"
FT REGION 792..815
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 827 AA; 92106 MW; 28B3C1EA99E4AF65 CRC64;
MQKSHSKQPQ SSKPAINTLP SQQRGMVFSS ILLIIVIAGM VLLALYLVKL DRTITHKFEG
KRWDIPAKVY SQPLELYKGA NIDKDTMKTW FELLNYQSDK AYDRTGTYHK SGNTYFIHTR
GFTYSANDID QEQVIKMTIA GNKIESVQST IPAKTGIIRL EPVNIGGIYP DSNEDRMVVS
LDQVPQPLID ALIATEDRGF YEHKGVSIRG IARAVINNFS GGSRQGGSTI TQQLIKNFYL
NSDRTMKRKA NEALMAVLLE LHYSKDEILQ AYLNEIYLGQ NGKRSINGFG LASQFYFDKP
LNELRLDQQA LLVGMAKGPS VYNPRRHPND SKARRDVVLS NMLAVGTLSQ EDYDTALKNS
LGVVDKPVEG KSQFPDFLDI VKRELNKVYY SDDLKNEGLI IISTMDPIAQ LAADKAVERK
LGELRRSGSK TKDLQGALVS ANPETGELVS VVGSGSEFTG FNRAVDAKRQ VGSLLKPIIY
MTALESGRYN LASSVDDSPI TVSLSDGTEW NPKNYDNRDH GYIPFTTALS QSYNHSAVRL
GMEFGVDTFA KQLKRMGVKE KVPPYPSALL GSVNLSPMDM LGVYQVFATG GFRTPIHSIR
SVIDDRGSIL QRTGLNTQRS IPPETNFLIN YALQDVVKNG TARRVQSLGS NLNLAGKTGT
TNDYRDAWFA GYSGNYVSVV WVGRDDNKPI GLSGGSGALP VWVDYMNRLK LTPVALPEPE
GIEWLWLENN SGKLSNERCA SARYLPVMSA YLPQEASSCA IGLYQQERMR EQMQWQNQQG
NINKQRRHEG LDIPNGEAIN NDSNDAEQDG DTSNRADTWY DRAVEWF
//
