ID A0A285R1B2_9SPHN Unreviewed; 269 AA.
AC A0A285R1B2;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 17.
DE RecName: Full=Biopolymer transport protein ExbB {ECO:0000256|ARBA:ARBA00022093};
GN ORFNames=SAMN06297144_3051 {ECO:0000313|EMBL:SOB87913.1};
OS Sphingomonas guangdongensis.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingomonas.
OX NCBI_TaxID=1141890 {ECO:0000313|EMBL:SOB87913.1, ECO:0000313|Proteomes:UP000219494};
RN [1] {ECO:0000313|EMBL:SOB87913.1, ECO:0000313|Proteomes:UP000219494}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 1.12672 {ECO:0000313|EMBL:SOB87913.1,
RC ECO:0000313|Proteomes:UP000219494};
RA Sun Z.S., Albrecht U., Echele G., Lee C.C.;
RL Submitted (JUL-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; OBMI01000003; SOB87913.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A285R1B2; -.
DR OrthoDB; 9805133at2; -.
DR Proteomes; UP000219494; 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:UP000219494};
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 29..54
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 135..162
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 182..203
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 92..214
FT /note="MotA/TolQ/ExbB proton channel"
FT /evidence="ECO:0000259|Pfam:PF01618"
FT REGION 241..269
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 255..269
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 269 AA; 28140 MW; 0CA81D77952977C0 CRC64;
MLTTILAAGA APAAENPYGL WEALEQGGVI AWSVFIILVV FLFFSLFIMF VKLFEQQKII
NQTKRVRAGF WQSNNLREGA AKLEKNSAYR QIVDDGLAAQ EQHKLLTDPV EAHDWLHGSL
ARSEAAINSQ LGSGLAFLAT VGATAPFIGL FGTVIGIYRA LIKIGAAGQA SIDAVAGPVG
EALIMTALGL VVAVPAVLAY NWLQRRNKAI AEDLSAFSND VLGFLASEGK VRPVVAGKGA
AATTAKPAAP KPAAPTTTAG TTGGVQTRA
//
