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Summary[edit | edit source]

  • pan ID?: SAUPAN001868000
  • symbol?: mepR
  • synonym:
  • description?: multidrug efflux MATE transporter transcriptional repressor MepR

      descriptions from strain specific annotations:

    • multidrug efflux MATE transporter transcriptional repressor MepR
    • MarR family transcriptional regulator
    • multidrug efflux transporter transcriptional repressor MepR
    • MarR family regulatory protein
    • transcriptional regulator, MarR family
    • marR family protein
    • mepA/mepB repressor and autoregulator
  • strand?: +
  • coordinates?: 2363539..2363958
  • synteny block?: BlockID0012420
  • occurrence?: in 100% of 34 strains

mepR1: multidrug efflux pump 1 transcriptional repressor [1]

• A crystal structure is available: 3ECO

• MepR1 has a consensus DNA binding motif of: 5'-TnRTTAGAnnTCTAAYnA-3'

• The MepR1 Regulon consists of Two Genes

There is some confusion in the S. aureus literature regarding the MepRAB transporters. Multiple papers and two crystal structures are available referring to two separate operons as MepRAB. For clarity, we will annotate the operon between the ascorbate phosphotransferase operon and the glycerol-3-phosphate transporter (3ECO) as "Mep1" and the one between femX and sarV (4EM1) as Mep2.

Orthologs[edit | edit source]

    COL:
    N315:
    NCTC8325:
    Newman:
    USA300_FPR3757:
    04-02981:
    SA2981_0332
    08BA02176:
    C248_0388
    11819-97:
    MS7_0323
    6850:
    RSAU_000279
    71193:
    ST398NM01_0414
    ECT-R 2:
    ECTR2_293
    ED133:
    SAOV_0358
    ED98:
    SAAV_0301
    HO 5096 0412:
    SAEMRSA15_02890
    JH1:
    SaurJH1_0392
    JH9:
    SaurJH9_0382
    JKD6008:
    SAA6008_00310 (mepR)
    JKD6159:
    SAA6159_00308 (mepR)
    JSNZ:
    JSNZ_000288 (mepR)
    LGA251:
    SARLGA251_02940 (mepR)
    M013:
    M013TW_0313
    MRSA252:
    SAR0330
    MSHR1132:
    SAMSHR1132_03070
    MSSA476:
    SAS0310
    Mu3:
    SAHV_0330
    Mu50:
    SAV0333
    MW2:
    MW0310
    RF122:
    SAB0283
    ST398:
    SAPIG0414
    T0131:
    SAT0131_00338
    TCH60:
    HMPREF0772_10162
    TW20:
    SATW20_04010 (mepR)
    USA300_TCH1516:
    USA300HOU_0354
    VC40:
    SAVC_01415

Genome Viewer[edit | edit source]

COL
N315
NCTC8325
Newman
USA300_FPR3757

Alignments[edit | edit source]

  • alignment of orthologues:
    CLUSTAL format alignment by MAFFT L-INS-i (v7.307)


    COL             MEFTYSYLFRMISHEMKQKADQKLEQFDITNEQGHTLGYLYAHQQDGLTQNDIAKALQRT
    N315            MEFTYSYLFRMISHEMKQKADQKLEQFDITNEQGHTLGYLYAHQQDGLTQNDIAKALQRT
    NCTC8325        MEFTYSYLFRMISHEMKQKADQKLEQFDITNEQGHTLGYLYAHQQDGLTQNDIAKALQRT
    Newman          MEFTYSYLFRMISHEMKQKADQKLEQFDITNEQGHTLGYLYAHQQDGLTQNDIAKALQRT
    USA300_FPR3757  MEFTYSYLFRMISHEMKQKADQKLEQFDITNEQGHTLGYLYAHQQDGLTQNDIAKALQRT
                    ************************************************************

    COL             GPTVSNLLRNLERKKLIYRYVDAQDTRRKNIGLTTSGIKLVEAFTSIFDEMEQTLVSQLS
    N315            GPTVSNLLRNLERKKLIYRYVDAQDTRRKNIGLTTSGIKLVEAFTSIFDEMEQTLVSQLS
    NCTC8325        GPTVSNLLRNLERKKLIYRYVDAQDTRRKNIGLTTSGIKLVEAFTSIFDEMEQTLVSQLS
    Newman          GPTVSNLLRNLERKKLIYRYVDAQDTRRKNIGLTTSGIKLVEAFTSIFDEMEQTLVSQLS
    USA300_FPR3757  GPTVSNLLRNLERKKLIYRYVDAQDTRRKNIGLTTSGIKLVEAFTSIFDEMEQTLVSQLS
                    ************************************************************

    COL             EEENEQMKANLTKMLSSLQ
    N315            EEENEQMKANLTKMLSSLQ
    NCTC8325        EEENEQMKANLTKMLSSLQ
    Newman          EEENEQMKANLTKMLSSLQ
    USA300_FPR3757  EEENEQMKANLTKMLSSLQ
                    *******************

  1. Muthiah Kumaraswami, Jason T Schuman, Susan M Seo, Glenn W Kaatz, Richard G Brennan
    Structural and biochemical characterization of MepR, a multidrug binding transcription regulator of the Staphylococcus aureus multidrug efflux pump MepA.
    Nucleic Acids Res: 2009, 37(4);1211-24
    [PubMed:19129225] [WorldCat.org] [DOI] (I p)
    Ivan Birukou, Susan M Seo, Bryan D Schindler, Glenn W Kaatz, Richard G Brennan
    Structural mechanism of transcription regulation of the Staphylococcus aureus multidrug efflux operon mepRA by the MarR family repressor MepR.
    Nucleic Acids Res: 2014, 42(4);2774-88
    [PubMed:24293644] [WorldCat.org] [DOI] (I p)