ID   GREA_CHLPB              Reviewed;         160 AA.
AC   B3EPH3;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 82.
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};
GN   OrderedLocusNames=Cphamn1_0906;
OS   Chlorobium phaeobacteroides (strain BS1).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=331678;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BS1;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Ovchinnikova G., Li T., Liu Z., Zhao F.,
RA   Overmann J., Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobium phaeobacteroides BS1.";
RL   Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001101; ACE03851.1; -; Genomic_DNA.
DR   RefSeq; WP_012474339.1; NC_010831.1.
DR   AlphaFoldDB; B3EPH3; -.
DR   SMR; B3EPH3; -.
DR   STRING; 331678.Cphamn1_0906; -.
DR   KEGG; cpb:Cphamn1_0906; -.
DR   eggNOG; COG0782; Bacteria.
DR   HOGENOM; CLU_101379_2_0_10; -.
DR   OMA; TWLTQEA; -.
DR   OrthoDB; 1536415at2; -.
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.
DR   PROSITE; PS00830; GREAB_2; 1.
PE   3: Inferred from homology;
KW   Coiled coil; DNA-binding; Transcription; Transcription regulation.
FT   CHAIN           1..160
FT                   /note="Transcription elongation factor GreA"
FT                   /id="PRO_1000094156"
FT   COILED          43..76
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00105"
SQ   SEQUENCE   160 AA;  18129 MW;  03D9540E7AFCA6B8 CRC64;
     MSDRVYLTKD GYNRLRDELT VLKSDVRKEV LEKIAEARAH GDLSENAEYD AAREQQRQLE
     NKIGDLESKL TRATILDPKQ VKTDRVYILT SVKLKNLDAQ KEEIIEYTLV SSDEADTDLG
     KISVRSPVGK SLLGKAVGDK VQIQVPKGEL HYEILEIFVK