ID   SP2AA_BACLI             Reviewed;         117 AA.
AC   P26777;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=Anti-sigma F factor antagonist;
DE   AltName: Full=Stage II sporulation protein AA;
GN   Name=spoIIAA;
OS   Bacillus licheniformis.
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX   NCBI_TaxID=1402;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 9789 / DSM 8785 / NBRC 12195 / NCIMB 6346 / NCTC 6346 / IMET
RC   11025 / NRS 243;
RX   PubMed=2513372; DOI=10.1099/00221287-135-4-767;
RA   Yudkin M.D., Appleby L., Smith A.J.;
RT   "Nucleotide sequence of the Bacillus licheniformis homologue of the
RT   sporulation locus spoIIA of Bacillus subtilis.";
RL   J. Gen. Microbiol. 135:767-775(1989).
CC   -!- FUNCTION: In the phosphorylated form it could act as an anti-anti-sigma
CC       factor that counteracts SpoIIAB and thus releases sigma f from
CC       inhibition. {ECO:0000250}.
CC   -!- PTM: Phosphorylated by SpoIIAB on a serine residue.
CC   -!- SIMILARITY: Belongs to the anti-sigma-factor antagonist family.
CC       {ECO:0000305}.
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DR   EMBL; M25260; AAA22795.1; -; Genomic_DNA.
DR   PIR; A37165; A37165.
DR   AlphaFoldDB; P26777; -.
DR   SMR; P26777; -.
DR   GO; GO:0043856; F:anti-sigma factor antagonist activity; IEA:InterPro.
DR   GO; GO:0045152; F:antisigma factor binding; IEA:InterPro.
DR   GO; GO:0030435; P:sporulation resulting in formation of a cellular spore; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.750.24; -; 1.
DR   InterPro; IPR003658; Anti-sigma_ant.
DR   InterPro; IPR014237; Anti-sigma_F_ant.
DR   InterPro; IPR002645; STAS_dom.
DR   InterPro; IPR036513; STAS_dom_sf.
DR   Pfam; PF01740; STAS; 1.
DR   SUPFAM; SSF52091; SSF52091; 1.
DR   TIGRFAMs; TIGR00377; ant_ant_sig; 1.
DR   TIGRFAMs; TIGR02886; spore_II_AA; 1.
DR   PROSITE; PS50801; STAS; 1.
PE   3: Inferred from homology;
KW   Phosphoprotein; Sporulation.
FT   CHAIN           1..117
FT                   /note="Anti-sigma F factor antagonist"
FT                   /id="PRO_0000194200"
FT   DOMAIN          3..113
FT                   /note="STAS"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00198"
FT   MOD_RES         58
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   117 AA;  12945 MW;  0B07EECEB2F2088F CRC64;
     MSLGIDIHVK ESVLCIRLTG ELDHHTAETL RKQVSGHLEQ TDIRHIVMNL ADLSFMDSSG
     LGVVLGRYKE IKQLGGEMIV CAISPAVKRL FDMSGLFKII RLEQSEQRAL ETLGVAS