ID BLAC_RHOCA Reviewed; 293 AA.
AC P14171;
DT 01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-JAN-1990, sequence version 1.
DT 27-MAR-2024, entry version 93.
DE RecName: Full=Beta-lactamase;
DE EC=3.5.2.6;
DE AltName: Full=Penicillinase;
DE Flags: Precursor;
OS Rhodobacter capsulatus (Rhodopseudomonas capsulata).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Rhodobacter.
OX NCBI_TaxID=1061;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=SP108;
RX PubMed=2788410; DOI=10.1042/bj2600803;
RA Campbell J.I.A., Scahill S., Gibson T., Ambler R.P.;
RT "The phototrophic bacterium Rhodopseudomonas capsulata sp108 encodes an
RT indigenous class A beta-lactamase.";
RL Biochem. J. 260:803-812(1989).
CC -!- FUNCTION: Hydrolyzes beta-lactams antibiotics. Rates of hydrolysis
CC relative to benzylpenicillin =100: ampicillin = 27, carbenicillin = 25,
CC cloxacillin = 0, cephaloridine = 4.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a beta-lactam + H2O = a substituted beta-amino acid;
CC Xref=Rhea:RHEA:20401, ChEBI:CHEBI:15377, ChEBI:CHEBI:35627,
CC ChEBI:CHEBI:140347; EC=3.5.2.6; Evidence={ECO:0000255|PROSITE-
CC ProRule:PRU10101};
CC -!- SUBCELLULAR LOCATION: Periplasm.
CC -!- SIMILARITY: Belongs to the class-A beta-lactamase family.
CC {ECO:0000305}.
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DR EMBL; X15791; CAA33795.1; -; Genomic_DNA.
DR PIR; S04649; S04649.
DR RefSeq; WP_028030786.1; NZ_SWJZ01000009.1.
DR AlphaFoldDB; P14171; -.
DR SMR; P14171; -.
DR OrthoDB; 9784149at2; -.
DR GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR GO; GO:0008800; F:beta-lactamase activity; IEA:UniProtKB-EC.
DR GO; GO:0030655; P:beta-lactam antibiotic catabolic process; IEA:InterPro.
DR GO; GO:0046677; P:response to antibiotic; IEA:UniProtKB-KW.
DR Gene3D; 3.40.710.10; DD-peptidase/beta-lactamase superfamily; 1.
DR InterPro; IPR012338; Beta-lactam/transpept-like.
DR InterPro; IPR045155; Beta-lactam_cat.
DR InterPro; IPR000871; Beta-lactam_class-A.
DR InterPro; IPR023650; Beta-lactam_class-A_AS.
DR PANTHER; PTHR35333; BETA-LACTAMASE; 1.
DR PANTHER; PTHR35333:SF3; BETA-LACTAMASE2 DOMAIN-CONTAINING PROTEIN; 1.
DR Pfam; PF13354; Beta-lactamase2; 1.
DR PRINTS; PR00118; BLACTAMASEA.
DR SUPFAM; SSF56601; beta-lactamase/transpeptidase-like; 1.
DR PROSITE; PS00146; BETA_LACTAMASE_A; 1.
PE 3: Inferred from homology;
KW Antibiotic resistance; Hydrolase; Periplasm; Signal.
FT SIGNAL 1..27
FT /evidence="ECO:0000255"
FT CHAIN 28..293
FT /note="Beta-lactamase"
FT /id="PRO_0000017009"
FT ACT_SITE 74
FT /note="Acyl-ester intermediate"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10101"
FT BINDING 238..240
FT /ligand="substrate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 293 AA; 31296 MW; 60925BBE658917F1 CRC64;
MRFTATVLSR VATGLALGLS MATASLAETP VEALSETVAR IEEQLGARVG LSLMETGTGW
SWSHREDELF LMNSTVKVPV CGAILARWDA GRLSLSDALP VRKADLVPYA PVTETRVGGN
MTLDELCLAA IDMSDNVAAN ILIGHLGGPE AVTQFFRSVG DPTSRLDRIE PKLNDFASGD
ERDTTSPAAM SETLRALLLG DVLSPEARGK LAEWMRHGGV TGALLRAEAE DAWLILDKSG
SGSHTRNLVA VIQPEGGAPW IATMFISDTD AEFEVRNEAL KDLGRAVVAV VRE
//