ID   SSPA_HISSO              Reviewed;         212 AA.
AC   P31784;
DT   01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1993, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=Stringent starvation protein A homolog;
GN   Name=sspA; Synonyms=ssp;
OS   Histophilus somni (Haemophilus somnus).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Histophilus.
OX   NCBI_TaxID=731;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=HS25;
RX   PubMed=1729207; DOI=10.1128/jb.174.1.17-23.1992;
RA   Theisen M., Potter A.A.;
RT   "Cloning, sequencing, expression, and functional studies of a 15,000-
RT   molecular-weight Haemophilus somnus antigen similar to Escherichia coli
RT   ribosomal protein S9.";
RL   J. Bacteriol. 174:17-23(1992).
CC   -!- FUNCTION: Forms an equimolar complex with the RNA polymerase holoenzyme
CC       (RNAP) but not with the core enzyme. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the GST superfamily. HSP26 family.
CC       {ECO:0000305}.
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DR   EMBL; S75161; AAB20822.1; -; Genomic_DNA.
DR   PIR; C43310; C43310.
DR   AlphaFoldDB; P31784; -.
DR   SMR; P31784; -.
DR   GO; GO:0006749; P:glutathione metabolic process; IEA:InterPro.
DR   CDD; cd03186; GST_C_SspA; 1.
DR   CDD; cd03059; GST_N_SspA; 1.
DR   InterPro; IPR010987; Glutathione-S-Trfase_C-like.
DR   InterPro; IPR036282; Glutathione-S-Trfase_C_sf.
DR   InterPro; IPR040079; Glutathione_S-Trfase.
DR   InterPro; IPR004045; Glutathione_S-Trfase_N.
DR   InterPro; IPR004046; GST_C.
DR   InterPro; IPR034342; SspA_C.
DR   InterPro; IPR034341; SspA_N.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   Pfam; PF00043; GST_C; 1.
DR   Pfam; PF13417; GST_N_3; 1.
DR   SFLD; SFLDS00019; Glutathione_Transferase_(cytos; 1.
DR   SUPFAM; SSF47616; SSF47616; 1.
DR   SUPFAM; SSF52833; SSF52833; 1.
DR   PROSITE; PS50405; GST_CTER; 1.
DR   PROSITE; PS50404; GST_NTER; 1.
PE   3: Inferred from homology;
FT   CHAIN           1..212
FT                   /note="Stringent starvation protein A homolog"
FT                   /id="PRO_0000185881"
FT   DOMAIN          9..87
FT                   /note="GST N-terminal"
FT   DOMAIN          92..212
FT                   /note="GST C-terminal"
SQ   SEQUENCE   212 AA;  24429 MW;  BEE00CFB6DB08BD2 CRC64;
     MTSAANKRSI MTLFLDKVDI YCHQVRIVLA EKGVAYATEI VDSESISEDL MELNPYGTIP
     TLVDRDLVLF NSRIIMEYLD ERFPHPPLMP VYPVSRGKSR LLMLRIEQDW YPVLEKAEKG
     SESERAIALK QLKEEILAIA PVFSQSLYFM SEEFRLVDCY IAPLLWRMQQ LGVVFTGTGS
     KAIKSYMERV FQRDSFLQSV GEMTPKNLME DK