ID   GREB_HAEIN              Reviewed;         158 AA.
AC   P43882;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 129.
DE   RecName: Full=Transcription elongation factor GreB {ECO:0000255|HAMAP-Rule:MF_00930};
DE   AltName: Full=Transcript cleavage factor GreB {ECO:0000255|HAMAP-Rule:MF_00930};
GN   Name=greB {ECO:0000255|HAMAP-Rule:MF_00930}; OrderedLocusNames=HI_0569;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
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. GreB releases sequences of up to 9 nucleotides in length.
CC       {ECO:0000255|HAMAP-Rule:MF_00930}.
CC   -!- SIMILARITY: Belongs to the GreA/GreB family. GreB subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00930}.
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DR   EMBL; L42023; AAC22227.1; -; Genomic_DNA.
DR   PIR; B64078; B64078.
DR   RefSeq; NP_438726.1; NC_000907.1.
DR   RefSeq; WP_005694166.1; NC_000907.1.
DR   AlphaFoldDB; P43882; -.
DR   SMR; P43882; -.
DR   STRING; 71421.HI_0569; -.
DR   EnsemblBacteria; AAC22227; AAC22227; HI_0569.
DR   KEGG; hin:HI_0569; -.
DR   PATRIC; fig|71421.8.peg.589; -.
DR   eggNOG; COG0782; Bacteria.
DR   HOGENOM; CLU_101379_3_0_6; -.
DR   OMA; DQIFFGA; -.
DR   PhylomeDB; P43882; -.
DR   BioCyc; HINF71421:G1GJ1-581-MON; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0070063; F:RNA polymerase binding; IEA:InterPro.
DR   GO; GO:0006354; P:DNA-templated transcription, elongation; IBA:GO_Central.
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   HAMAP; MF_00930; GreB; 1.
DR   InterPro; IPR036953; GreA/GreB_C_sf.
DR   InterPro; IPR018151; TF_GreA/GreB_CS.
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   InterPro; IPR006358; Tscrpt_elong_fac_GreB.
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; TIGR01461; greB; 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 GreB"
FT                   /id="PRO_0000176930"
FT   COILED          53..75
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00930"
SQ   SEQUENCE   158 AA;  18464 MW;  611A427515F0B769 CRC64;
     MAKSNYITRQ GWLALDQELK FLWKEERPKV TQAVSDAAAL GDRSENAEYI YGKRRLREID
     RRVRFLTKRL EVLQIVDYNP KQEGKVFFGA WVELENEEGE TKQYRIVGCD EFAPAKNWIS
     IDSPVARALI GKTLDDEVRV ETPSGFITLY VNKIWYEK