ID   ESXB_MYCTO              Reviewed;         100 AA.
AC   P9WNK4; L0TDT9; O69739; P0A566;
DT   16-APR-2014, integrated into UniProtKB/Swiss-Prot.
DT   16-APR-2014, sequence version 1.
DT   25-MAY-2022, entry version 35.
DE   RecName: Full=ESAT-6-like protein EsxB;
DE   AltName: Full=10 kDa culture filtrate antigen CFP-10;
DE   AltName: Full=Secreted antigenic protein MTSA-10;
GN   Name=esxB; Synonyms=cfp10, lhp, mtsA10; OrderedLocusNames=MT3988;
OS   Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=83331;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CDC 1551 / Oshkosh;
RX   PubMed=12218036; DOI=10.1128/jb.184.19.5479-5490.2002;
RA   Fleischmann R.D., Alland D., Eisen J.A., Carpenter L., White O.,
RA   Peterson J.D., DeBoy R.T., Dodson R.J., Gwinn M.L., Haft D.H., Hickey E.K.,
RA   Kolonay J.F., Nelson W.C., Umayam L.A., Ermolaeva M.D., Salzberg S.L.,
RA   Delcher A., Utterback T.R., Weidman J.F., Khouri H.M., Gill J., Mikula A.,
RA   Bishai W., Jacobs W.R. Jr., Venter J.C., Fraser C.M.;
RT   "Whole-genome comparison of Mycobacterium tuberculosis clinical and
RT   laboratory strains.";
RL   J. Bacteriol. 184:5479-5490(2002).
CC   -!- FUNCTION: A secreted protein. Acts as a strong host T-cell antigen.
CC       Involved in translocation of bacteria from the host (human)
CC       phagolysosome to the host cytoplasm. Might serve as a chaperone to
CC       prevent uncontrolled membrane lysis by its partner EsxA.
CC       {ECO:0000250|UniProtKB:P9WNK5}.
CC   -!- SUBUNIT: Forms a tight 1:1 complex with EsxA (ESAT-6).
CC       {ECO:0000250|UniProtKB:P9WNK5}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250|UniProtKB:P9WNK5}.
CC       Note=Probably secreted via the ESX-1 / type VII secretion system
CC       (T7SS). {ECO:0000250|UniProtKB:P9WNK5}.
CC   -!- SIMILARITY: Belongs to the WXG100 family. CFP-10 subfamily.
CC       {ECO:0000305}.
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DR   EMBL; AE000516; AAK48356.1; -; Genomic_DNA.
DR   PIR; H70802; H70802.
DR   RefSeq; WP_003399940.1; NZ_KK341227.1.
DR   AlphaFoldDB; P9WNK4; -.
DR   BMRB; P9WNK4; -.
DR   SMR; P9WNK4; -.
DR   EnsemblBacteria; AAK48356; AAK48356; MT3988.
DR   GeneID; 45427878; -.
DR   KEGG; mtc:MT3988; -.
DR   PATRIC; fig|83331.31.peg.4290; -.
DR   HOGENOM; CLU_178469_0_0_11; -.
DR   Proteomes; UP000001020; Chromosome.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   InterPro; IPR036689; ESAT-6-like_sf.
DR   InterPro; IPR010310; T7SS_ESAT-6-like.
DR   Pfam; PF06013; WXG100; 1.
DR   SUPFAM; SSF140453; SSF140453; 1.
DR   TIGRFAMs; TIGR03930; WXG100_ESAT6; 1.
PE   3: Inferred from homology;
KW   Chaperone; Coiled coil; Secreted; Virulence.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..100
FT                   /note="ESAT-6-like protein EsxB"
FT                   /id="PRO_0000427111"
FT   REGION          81..100
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COILED          49..86
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   100 AA;  10794 MW;  285F4FC96F55D194 CRC64;
     MAEMKTDAAT LAQEAGNFER ISGDLKTQID QVESTAGSLQ GQWRGAAGTA AQAAVVRFQE
     AANKQKQELD EISTNIRQAG VQYSRADEEQ QQALSSQMGF