ID   GREA_BUCAP              Reviewed;         159 AA.
AC   Q8K9G6;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 108.
DE   RecName: Full=Transcription elongation factor GreA {ECO:0000255|HAMAP-Rule:MF_00105};
DE   AltName: Full=Transcript cleavage factor GreA {ECO:0000255|HAMAP-Rule:MF_00105};
GN   Name=greA {ECO:0000255|HAMAP-Rule:MF_00105}; OrderedLocusNames=BUsg_371;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: Necessary for efficient RNA polymerase transcription
CC       elongation past template-encoded arresting sites. The arresting sites
CC       in DNA have the property of trapping a certain fraction of elongating
CC       RNA polymerases that pass through, resulting in locked ternary
CC       complexes. Cleavage of the nascent transcript by cleavage factors such
CC       as GreA or GreB allows the resumption of elongation from the new
CC       3'terminus. GreA releases sequences of 2 to 3 nucleotides.
CC       {ECO:0000255|HAMAP-Rule:MF_00105}.
CC   -!- SIMILARITY: Belongs to the GreA/GreB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00105}.
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DR   EMBL; AE013218; AAM67923.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8K9G6; -.
DR   SMR; Q8K9G6; -.
DR   STRING; 198804.BUsg_371; -.
DR   EnsemblBacteria; AAM67923; AAM67923; BUsg_371.
DR   KEGG; bas:BUsg_371; -.
DR   eggNOG; COG0782; Bacteria.
DR   HOGENOM; CLU_101379_2_0_6; -.
DR   OMA; TWLTQEA; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0070063; F:RNA polymerase binding; IEA:InterPro.
DR   GO; GO:0032784; P:regulation of DNA-templated transcription, elongation; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.287.180; -; 1.
DR   Gene3D; 3.10.50.30; -; 1.
DR   HAMAP; MF_00105; GreA_GreB; 1.
DR   InterPro; IPR036953; GreA/GreB_C_sf.
DR   InterPro; IPR018151; TF_GreA/GreB_CS.
DR   InterPro; IPR006359; Tscrpt_elong_fac_GreA.
DR   InterPro; IPR028624; Tscrpt_elong_fac_GreA/B.
DR   InterPro; IPR001437; Tscrpt_elong_fac_GreA/B_C.
DR   InterPro; IPR023459; Tscrpt_elong_fac_GreA/B_fam.
DR   InterPro; IPR022691; Tscrpt_elong_fac_GreA/B_N.
DR   InterPro; IPR036805; Tscrpt_elong_fac_GreA/B_N_sf.
DR   PANTHER; PTHR30437; PTHR30437; 1.
DR   Pfam; PF01272; GreA_GreB; 1.
DR   Pfam; PF03449; GreA_GreB_N; 1.
DR   PIRSF; PIRSF006092; GreA_GreB; 1.
DR   SUPFAM; SSF46557; SSF46557; 1.
DR   TIGRFAMs; TIGR01462; greA; 1.
DR   PROSITE; PS00829; GREAB_1; 1.
PE   3: Inferred from homology;
KW   Coiled coil; DNA-binding; Transcription; Transcription regulation.
FT   CHAIN           1..159
FT                   /note="Transcription elongation factor GreA"
FT                   /id="PRO_0000176913"
FT   COILED          7..72
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00105"
SQ   SEQUENCE   159 AA;  17957 MW;  50E833B516B60005 CRC64;
     MINLIPMTVR GAEKLREELE QLKNVKRPRI TVQIAEARKH GDLKENAEYH SAREEQSFCE
     GRIQEIESKL SNSQIIDITK ISNDGRVVFG STVTILNIKN NAVFTYQIVG DDESDFKKNL
     ISINSPMSRG LIGKTVNTIA IIHTPSGNVK YKILKIDYI