ID   A0A1R4GX63_9GAMM        Unreviewed;       193 AA.
AC   A0A1R4GX63;
DT   12-APR-2017, integrated into UniProtKB/TrEMBL.
DT   12-APR-2017, sequence version 1.
DT   27-MAR-2024, entry version 17.
DE   RecName: Full=Biopolymer transport protein ExbB {ECO:0000256|ARBA:ARBA00022093};
GN   Name=exbB_2 {ECO:0000313|EMBL:SJM72840.1};
GN   ORFNames=A1232T_02039 {ECO:0000313|EMBL:SJM72840.1};
OS   Psychrobacter piechaudii.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Psychrobacter.
OX   NCBI_TaxID=1945521 {ECO:0000313|EMBL:SJM72840.1, ECO:0000313|Proteomes:UP000188357};
RN   [1] {ECO:0000313|EMBL:SJM72840.1, ECO:0000313|Proteomes:UP000188357}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Psychrobacter_piechaudii {ECO:0000313|EMBL:SJM72840.1};
RA   Peterson S.W.;
RL   Submitted (FEB-2017) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Involved in the TonB-dependent energy-dependent transport of
CC       various receptor-bound substrates. Protects ExbD from proteolytic
CC       degradation and functionally stabilizes TonB.
CC       {ECO:0000256|ARBA:ARBA00024816}.
CC   -!- SUBUNIT: The accessory proteins ExbB and ExbD seem to form a complex
CC       with TonB. {ECO:0000256|ARBA:ARBA00011471}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane
CC       {ECO:0000256|ARBA:ARBA00004429}; Multi-pass membrane protein
CC       {ECO:0000256|ARBA:ARBA00004429}. Membrane
CC       {ECO:0000256|ARBA:ARBA00004141, ECO:0000256|RuleBase:RU004057}; Multi-
CC       pass membrane protein {ECO:0000256|ARBA:ARBA00004141,
CC       ECO:0000256|RuleBase:RU004057}.
CC   -!- SIMILARITY: Belongs to the exbB/tolQ family.
CC       {ECO:0000256|RuleBase:RU004057}.
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DR   EMBL; FUGE01000208; SJM72840.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1R4GX63; -.
DR   STRING; 1945521.A1232T_02039; -.
DR   OrthoDB; 9805133at2; -.
DR   Proteomes; UP000188357; Unassembled WGS sequence.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015031; P:protein transport; IEA:UniProtKB-KW.
DR   InterPro; IPR002898; MotA_ExbB_proton_chnl.
DR   PANTHER; PTHR30625:SF14; BIOPOLYMER TRANSPORT PROTEIN EXBB; 1.
DR   PANTHER; PTHR30625; PROTEIN TOLQ; 1.
DR   Pfam; PF01618; MotA_ExbB; 1.
PE   3: Inferred from homology;
KW   Cell membrane {ECO:0000256|ARBA:ARBA00022475};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW   Protein transport {ECO:0000256|ARBA:ARBA00022927,
KW   ECO:0000256|RuleBase:RU004057};
KW   Reference proteome {ECO:0000313|Proteomes:UP000188357};
KW   Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW   Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW   ECO:0000256|SAM:Phobius};
KW   Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU004057}.
FT   TRANSMEM        16..37
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        92..119
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        139..160
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          64..166
FT                   /note="MotA/TolQ/ExbB proton channel"
FT                   /evidence="ECO:0000259|Pfam:PF01618"
SQ   SEQUENCE   193 AA;  20922 MW;  2734B185D486CCFC CRC64;
     MDFAAYWQYT DVVTKFLFFS LLALSIASWI TGVLRLYQSS KLKQTVSTDL QQAVSSESKS
     IVDLDSSERK TVVEQILLKE IGRYRFEGEK GLAILGTTAA IAPFIGLFGT VWGIFHALHS
     IGETGQAGLS QVAGPVGEAL IMTGLGLAVA IPAVIFYNIA MRINRKTLFI ANDTAYGLLG
     ATAKSENQNE IPR
//