MACB_SALTY
ID MACB_SALTY Reviewed; 648 AA.
AC Q8ZQE4;
DT 09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 122.
DE RecName: Full=Macrolide export ATP-binding/permease protein MacB {ECO:0000255|HAMAP-Rule:MF_01720};
DE EC=7.6.2.- {ECO:0000255|HAMAP-Rule:MF_01720};
GN Name=macB {ECO:0000255|HAMAP-Rule:MF_01720}; OrderedLocusNames=STM0942;
OS Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=99287;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX PubMed=11677609; DOI=10.1038/35101614;
RA McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA Wilson R.K.;
RT "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL Nature 413:852-856(2001).
CC -!- FUNCTION: Part of the tripartite efflux system MacAB-TolC. MacB is a
CC non-canonical ABC transporter that contains transmembrane domains
CC (TMD), which form a pore in the inner membrane, and an ATP-binding
CC domain (NBD), which is responsible for energy generation. Confers
CC resistance against macrolides. {ECO:0000255|HAMAP-Rule:MF_01720}.
CC -!- SUBUNIT: Homodimer. Part of the tripartite efflux system MacAB-TolC,
CC which is composed of an inner membrane transporter, MacB, a periplasmic
CC membrane fusion protein, MacA, and an outer membrane component, TolC.
CC The complex forms a large protein conduit and can translocate molecules
CC across both the inner and outer membranes. Interacts with MacA.
CC {ECO:0000255|HAMAP-Rule:MF_01720}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_01720}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01720}.
CC -!- SIMILARITY: Belongs to the ABC transporter superfamily. Macrolide
CC exporter (TC 3.A.1.122) family. {ECO:0000255|HAMAP-Rule:MF_01720}.
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DR EMBL; AE006468; AAL19878.1; -; Genomic_DNA.
DR RefSeq; NP_459919.1; NC_003197.2.
DR RefSeq; WP_000125877.1; NC_003197.2.
DR AlphaFoldDB; Q8ZQE4; -.
DR SMR; Q8ZQE4; -.
DR STRING; 99287.STM0942; -.
DR PaxDb; Q8ZQE4; -.
DR EnsemblBacteria; AAL19878; AAL19878; STM0942.
DR GeneID; 1252461; -.
DR KEGG; stm:STM0942; -.
DR PATRIC; fig|99287.12.peg.993; -.
DR HOGENOM; CLU_000604_78_3_6; -.
DR OMA; VVILITH; -.
DR PhylomeDB; Q8ZQE4; -.
DR BioCyc; SENT99287:STM0942-MON; -.
DR PHI-base; PHI:3928; -.
DR Proteomes; UP000001014; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0022857; F:transmembrane transporter activity; IBA:GO_Central.
DR GO; GO:0046677; P:response to antibiotic; IEA:UniProtKB-KW.
DR CDD; cd03255; ABC_MJ0796_LolCDE_FtsE; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR003838; ABC3_permease_dom.
DR InterPro; IPR003439; ABC_transporter-like_ATP-bd.
DR InterPro; IPR017871; ABC_transporter-like_CS.
DR InterPro; IPR017911; MacB_ATP-bd.
DR InterPro; IPR025857; MacB_PCD.
DR InterPro; IPR027417; P-loop_NTPase.
DR Pfam; PF00005; ABC_tran; 1.
DR Pfam; PF02687; FtsX; 1.
DR Pfam; PF12704; MacB_PCD; 1.
DR SMART; SM00382; AAA; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR PROSITE; PS00211; ABC_TRANSPORTER_1; 1.
DR PROSITE; PS50893; ABC_TRANSPORTER_2; 1.
DR PROSITE; PS51267; MACB; 1.
PE 3: Inferred from homology;
KW Antibiotic resistance; ATP-binding; Cell inner membrane; Cell membrane;
KW Membrane; Nucleotide-binding; Reference proteome; Translocase;
KW Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..648
FT /note="Macrolide export ATP-binding/permease protein MacB"
FT /id="PRO_0000269977"
FT TRANSMEM 273..293
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT TRANSMEM 417..437
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT TRANSMEM 523..543
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT TRANSMEM 577..597
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT TRANSMEM 611..631
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT DOMAIN 5..243
FT /note="ABC transporter"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
FT BINDING 41..48
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01720"
SQ SEQUENCE 648 AA; 70769 MW; BA774B20D3EABE22 CRC64;
MTALLELCNV SRSYPSGEEQ VAVLKDISLQ IHAGEMVAIV GVSGSGKSTL MNILGCLDKP
TSGTYRVAGR DVSTLDPDAL AQLRREHFGF IFQRYHLLSH LTAAQNVEIP AVYAGIERKK
RQARARELLL RLGLSDRVDY PPSQLSGGQQ QRVSIARALM NGGQVILADE PTGALDSHSG
EEVMAILRQL RDRGHTVIIV THDPLIAAQA ERIIEIHDGK IVHNPPAQEK KREQGVDAAV
VNTAPGWRQF ASSFREALSM AWLAMAANKM RTLLTMLGII IGIASVVSIV VVGDAAKQMV
LADIRAMGTN TIDIHPGKDF GDDNPQYRQA LKYDDLVAIQ KQPWVNSATP SVSKSLRLRY
GNIDIAVNAN GVSGDYFNVY GMSFREGNTF NAVQQQDRAQ VVVLDANTRR QLFPNKANVV
GEVVLAGNMP VIVIGVAEEK PSMYGNSNLL QVWLPYSTMS DRIMGQSWLN SITVRVKDGV
DSDQAEQQLT RLLTLRHGKK DFFTWNMDSV LKTAEKTTYT LQLFLTLVAV ISLVVGGIGV
MNIMLVSVTE RTREIGIRMA VGARASDVLQ QFLIEAVLVC LVGGALGISL SMFIAFMLQL
FLPGWEIGFS LTALASAFLC STFTGILFGW LPARNAARLD PVDALARE
