ID   GREA_METCA              Reviewed;         158 AA.
AC   Q607B0;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 105.
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=MCA1851;
OS   Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Methylococcales;
OC   Methylococcaceae; Methylococcus.
OX   NCBI_TaxID=243233;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33009 / NCIMB 11132 / Bath;
RX   PubMed=15383840; DOI=10.1371/journal.pbio.0020303;
RA   Ward N.L., Larsen O., Sakwa J., Bruseth L., Khouri H.M., Durkin A.S.,
RA   Dimitrov G., Jiang L., Scanlan D., Kang K.H., Lewis M.R., Nelson K.E.,
RA   Methe B.A., Wu M., Heidelberg J.F., Paulsen I.T., Fouts D.E., Ravel J.,
RA   Tettelin H., Ren Q., Read T.D., DeBoy R.T., Seshadri R., Salzberg S.L.,
RA   Jensen H.B., Birkeland N.K., Nelson W.C., Dodson R.J., Grindhaug S.H.,
RA   Holt I.E., Eidhammer I., Jonasen I., Vanaken S., Utterback T.R.,
RA   Feldblyum T.V., Fraser C.M., Lillehaug J.R., Eisen J.A.;
RT   "Genomic insights into methanotrophy: the complete genome sequence of
RT   Methylococcus capsulatus (Bath).";
RL   PLoS Biol. 2:1616-1628(2004).
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; AE017282; AAU91912.1; -; Genomic_DNA.
DR   RefSeq; WP_010961103.1; NC_002977.6.
DR   AlphaFoldDB; Q607B0; -.
DR   SMR; Q607B0; -.
DR   STRING; 243233.MCA1851; -.
DR   EnsemblBacteria; AAU91912; AAU91912; MCA1851.
DR   KEGG; mca:MCA1851; -.
DR   eggNOG; COG0782; Bacteria.
DR   HOGENOM; CLU_101379_2_0_6; -.
DR   OMA; TWLTQEA; -.
DR   OrthoDB; 1536415at2; -.
DR   Proteomes; UP000006821; 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.
DR   PROSITE; PS00830; GREAB_2; 1.
PE   3: Inferred from homology;
KW   Coiled coil; DNA-binding; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..158
FT                   /note="Transcription elongation factor GreA"
FT                   /id="PRO_1000034277"
FT   COILED          49..73
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00105"
SQ   SEQUENCE   158 AA;  17226 MW;  2437DDEA0D5827BC CRC64;
     MNKTPMTTRG AEKLREELNH LKTVARPRVI EAIAEARAHG DLKENAEYQA AREQQGFIEG
     RIKEIEAKLA NAQIIDVTRL NPGGKVVFGA TAEIEDLASG EVVTYQIVGE DEAEIKEGRI
     SVTSPIARAL IGKQEGDVAT VQAPGGTREY EIVSVRYV