MACB_ECOUT
ID MACB_ECOUT Reviewed; 648 AA.
AC Q1RE44;
DT 09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT 16-MAY-2006, sequence version 1.
DT 03-AUG-2022, entry version 100.
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=UTI89_C0884;
OS Escherichia coli (strain UTI89 / UPEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=364106;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UTI89 / UPEC;
RX PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S.,
RA Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J.,
RA Gordon J.I.;
RT "Identification of genes subject to positive selection in uropathogenic
RT strains of Escherichia coli: a comparative genomics approach.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
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; CP000243; ABE06370.1; -; Genomic_DNA.
DR RefSeq; WP_000188147.1; NC_007946.1.
DR AlphaFoldDB; Q1RE44; -.
DR SMR; Q1RE44; -.
DR EnsemblBacteria; ABE06370; ABE06370; UTI89_C0884.
DR KEGG; eci:UTI89_C0884; -.
DR HOGENOM; CLU_000604_78_2_6; -.
DR OMA; VVILITH; -.
DR Proteomes; UP000001952; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
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; Translocase; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..648
FT /note="Macrolide export ATP-binding/permease protein MacB"
FT /id="PRO_0000269940"
FT TRANSMEM 273..293
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 576..596
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; 70632 MW; D0B55BABFF1652E8 CRC64;
MTPLLELKDI RRSYPAGDEQ VEVLKGISLD IYAGEMVAIV GASGSGKSTL MNILGCLDKA
TSGTYRVAGQ DVATLDADAL AQLRREHFGF IFQRYHLLSH LTAEQNVEVP AVYAGLERKQ
RLLRAQELLQ RLGLEDRTEY YPAQLSGGQQ QRVSIARALM NGGQVILADE PTGALDSHSG
EEVMAILHQL RDRGHTVIIV THDPQVAAQA ERVIEIRDGE IVRNPPAVEK VNATGGTEPV
VNTASGWRQF VSGFNEALTM AWRALAANKM RTLLTMLGII IGIASVVSIV VVGDAAKQMV
LADIRSIGTN TIDVYPGKDF GDDDPQYQQA LKYDDLIAIQ KQPWVASATP AVSQNLRLRY
NNVDVAASAN GVSGDYFNVY GMTFSEGNTF NQEQLNGRAQ VVVLDSNTRR QLFPHKADVV
GEVILVGNMP ARVIGVAEEK QSMFGSSKVL RVWLPYSTMS GRVMGQSWLN SITVRVKEGF
DSAEAEQQLT RLLSLRHGKK DFFTWNMDGV LKTVEKTTRT LQLFLTLVAV ISLVVGGIGV
MNIMLVSVTE RTREIGIRMA VGARASDVLQ QFLIEAVLVC LVGGALGITL SLLIAFTLQL
FLPGWEIGFS PLALLLAFLC STVTGILFGW LPARNAARLD PVDALARE
