ID FOSB_STAEP Reviewed; 139 AA.
AC Q03377;
DT 01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-1994, sequence version 1.
DT 27-MAR-2024, entry version 77.
DE RecName: Full=Metallothiol transferase FosB {ECO:0000255|HAMAP-Rule:MF_01512};
DE EC=2.5.1.- {ECO:0000255|HAMAP-Rule:MF_01512};
DE AltName: Full=Fosfomycin resistance protein {ECO:0000255|HAMAP-Rule:MF_01512};
GN Name=fosB {ECO:0000255|HAMAP-Rule:MF_01512};
OS Staphylococcus epidermidis.
OG Plasmid pIP1842.
OC Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=1282;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=BM2641;
RX PubMed=2341025; DOI=10.1016/s0378-1097(05)80052-7;
RA Zilhao R., Courvalin P.;
RT "Nucleotide sequence of the fosB gene conferring fosfomycin resistance in
RT Staphylococcus epidermidis.";
RL FEMS Microbiol. Lett. 56:267-272(1990).
CC -!- FUNCTION: Metallothiol transferase which confers resistance to
CC fosfomycin by catalyzing the addition of a thiol cofactor to
CC fosfomycin. L-cysteine is probably the physiological thiol donor.
CC {ECO:0000255|HAMAP-Rule:MF_01512}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01512};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01512}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01512}.
CC -!- SIMILARITY: Belongs to the fosfomycin resistance protein family. FosB
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01512}.
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DR EMBL; X54227; CAA38136.1; -; Genomic_DNA.
DR PIR; B48175; B48175.
DR RefSeq; WP_032488468.1; NZ_PYFN01000024.1.
DR AlphaFoldDB; Q03377; -.
DR SMR; Q03377; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016765; F:transferase activity, transferring alkyl or aryl (other than methyl) groups; IEA:UniProtKB-UniRule.
DR GO; GO:0046677; P:response to antibiotic; IEA:UniProtKB-UniRule.
DR Gene3D; 3.10.180.10; 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1; 1.
DR HAMAP; MF_01512; FosB; 1.
DR InterPro; IPR029068; Glyas_Bleomycin-R_OHBP_Dase.
DR InterPro; IPR004360; Glyas_Fos-R_dOase_dom.
DR InterPro; IPR022858; Metallothiol_Trafse_FosB.
DR InterPro; IPR037523; VOC.
DR PANTHER; PTHR21366:SF22; GLYOXALASE DOMAIN-CONTAINING PROTEIN 5; 1.
DR PANTHER; PTHR21366; GLYOXALASE FAMILY PROTEIN; 1.
DR Pfam; PF00903; Glyoxalase; 1.
DR SUPFAM; SSF54593; Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase; 1.
DR PROSITE; PS51819; VOC; 1.
PE 3: Inferred from homology;
KW Antibiotic resistance; Cytoplasm; Magnesium; Metal-binding; Plasmid;
KW Transferase.
FT CHAIN 1..139
FT /note="Metallothiol transferase FosB"
FT /id="PRO_0000164038"
FT DOMAIN 4..119
FT /note="VOC"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01163"
FT ACT_SITE 115
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01163"
FT BINDING 7
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01512"
FT BINDING 66
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01512"
FT BINDING 115
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01512"
SQ SEQUENCE 139 AA; 16363 MW; 3F22E911E068C971 CRC64;
MIKGINHITY SVSNIAKSIE FYRDILGADI LVEGETSAYF NLGGIWLALN EEKNIPRSEI
KYSYTHIAFT ISDNDFEDWY IWLKENEVNI LEGRDRDIRD KKSIYFTDLD GHKLELHTGS
LEDRLSYYKE AKPHMNFYI
//
