ID   RPOB_STRA1              Reviewed;        1191 AA.
AC   Q3K3L2;
DT   21-FEB-2006, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=DNA-directed RNA polymerase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
DE            Short=RNAP subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
DE            EC=2.7.7.6 {ECO:0000255|HAMAP-Rule:MF_01321};
DE   AltName: Full=RNA polymerase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
DE   AltName: Full=Transcriptase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
GN   Name=rpoB {ECO:0000255|HAMAP-Rule:MF_01321}; OrderedLocusNames=SAK_0223;
OS   Streptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC
OS   SS700).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=205921;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27591 / A909 / CDC SS700;
RX   PubMed=16172379; DOI=10.1073/pnas.0506758102;
RA   Tettelin H., Masignani V., Cieslewicz M.J., Donati C., Medini D.,
RA   Ward N.L., Angiuoli S.V., Crabtree J., Jones A.L., Durkin A.S., DeBoy R.T.,
RA   Davidsen T.M., Mora M., Scarselli M., Margarit y Ros I., Peterson J.D.,
RA   Hauser C.R., Sundaram J.P., Nelson W.C., Madupu R., Brinkac L.M.,
RA   Dodson R.J., Rosovitz M.J., Sullivan S.A., Daugherty S.C., Haft D.H.,
RA   Selengut J., Gwinn M.L., Zhou L., Zafar N., Khouri H., Radune D.,
RA   Dimitrov G., Watkins K., O'Connor K.J., Smith S., Utterback T.R., White O.,
RA   Rubens C.E., Grandi G., Madoff L.C., Kasper D.L., Telford J.L.,
RA   Wessels M.R., Rappuoli R., Fraser C.M.;
RT   "Genome analysis of multiple pathogenic isolates of Streptococcus
RT   agalactiae: implications for the microbial 'pan-genome'.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:13950-13955(2005).
CC   -!- FUNCTION: DNA-dependent RNA polymerase catalyzes the transcription of
CC       DNA into RNA using the four ribonucleoside triphosphates as substrates.
CC       {ECO:0000255|HAMAP-Rule:MF_01321}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a ribonucleoside 5'-triphosphate + RNA(n) = diphosphate +
CC         RNA(n+1); Xref=Rhea:RHEA:21248, Rhea:RHEA-COMP:14527, Rhea:RHEA-
CC         COMP:17342, ChEBI:CHEBI:33019, ChEBI:CHEBI:61557, ChEBI:CHEBI:140395;
CC         EC=2.7.7.6; Evidence={ECO:0000255|HAMAP-Rule:MF_01321};
CC   -!- SUBUNIT: The RNAP catalytic core consists of 2 alpha, 1 beta, 1 beta'
CC       and 1 omega subunit. When a sigma factor is associated with the core
CC       the holoenzyme is formed, which can initiate transcription.
CC       {ECO:0000255|HAMAP-Rule:MF_01321}.
CC   -!- SIMILARITY: Belongs to the RNA polymerase beta chain family.
CC       {ECO:0000255|HAMAP-Rule:MF_01321}.
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DR   EMBL; CP000114; ABA45663.1; -; Genomic_DNA.
DR   RefSeq; WP_000907191.1; NC_007432.1.
DR   AlphaFoldDB; Q3K3L2; -.
DR   SMR; Q3K3L2; -.
DR   GeneID; 66885141; -.
DR   KEGG; sak:SAK_0223; -.
DR   HOGENOM; CLU_000524_4_1_9; -.
DR   OMA; FMTWEGY; -.
DR   GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003899; F:DNA-directed 5'-3' RNA polymerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0032549; F:ribonucleoside binding; IEA:InterPro.
DR   GO; GO:0006351; P:transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   CDD; cd00653; RNA_pol_B_RPB2; 1.
DR   Gene3D; 2.30.150.10; -; 1.
DR   Gene3D; 2.40.270.10; -; 1.
DR   Gene3D; 2.40.50.150; -; 1.
DR   Gene3D; 3.90.1110.10; -; 1.
DR   HAMAP; MF_01321; RNApol_bact_RpoB; 1.
DR   InterPro; IPR042107; DNA-dir_RNA_pol_bsu_ext_1_sf.
DR   InterPro; IPR019462; DNA-dir_RNA_pol_bsu_external_1.
DR   InterPro; IPR015712; DNA-dir_RNA_pol_su2.
DR   InterPro; IPR007120; DNA-dir_RNAP_su2_dom.
DR   InterPro; IPR037033; DNA-dir_RNAP_su2_hyb_sf.
DR   InterPro; IPR010243; RNA_pol_bsu_bac.
DR   InterPro; IPR007121; RNA_pol_bsu_CS.
DR   InterPro; IPR007644; RNA_pol_bsu_protrusion.
DR   InterPro; IPR007642; RNA_pol_Rpb2_2.
DR   InterPro; IPR037034; RNA_pol_Rpb2_2_sf.
DR   InterPro; IPR007645; RNA_pol_Rpb2_3.
DR   InterPro; IPR007641; RNA_pol_Rpb2_7.
DR   InterPro; IPR014724; RNA_pol_RPB2_OB-fold.
DR   PANTHER; PTHR20856; PTHR20856; 1.
DR   Pfam; PF04563; RNA_pol_Rpb2_1; 1.
DR   Pfam; PF04561; RNA_pol_Rpb2_2; 2.
DR   Pfam; PF04565; RNA_pol_Rpb2_3; 1.
DR   Pfam; PF10385; RNA_pol_Rpb2_45; 1.
DR   Pfam; PF00562; RNA_pol_Rpb2_6; 1.
DR   Pfam; PF04560; RNA_pol_Rpb2_7; 1.
DR   TIGRFAMs; TIGR02013; rpoB; 1.
DR   PROSITE; PS01166; RNA_POL_BETA; 1.
PE   3: Inferred from homology;
KW   DNA-directed RNA polymerase; Nucleotidyltransferase; Transcription;
KW   Transferase.
FT   CHAIN           1..1191
FT                   /note="DNA-directed RNA polymerase subunit beta"
FT                   /id="PRO_0000224109"
FT   REGION          1171..1191
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   1191 AA;  133011 MW;  89C029179626D6FE CRC64;
     MAGHEVQYGK HRTRRSFSRI KEVLDLPNLI EIQTDSFQDF LDAGLKEVFE DVLPISNFTD
     TMDLEFVGYE LKEPKYTLEE ARIHDASYSA PIFVTFRLVN KETGEIKTQE VFFGDFPIMT
     EMGTFIINGG ERIIVSQLVR SPGVYFNDKV DKNGKVGYGS TVIPNRGAWL ELETDAKDIA
     YTRIDRTRKI PFTTLVRALG FSGDDEIVDI FGDSELVRNT IEKDIHKNPS DSRTDEALKE
     IYERLRPGEP KTADSSRSLL VARFFDPRRY DLAAVGRYKI NKKLNLKTRL LNQTIAENLV
     DGETGEILVE AGTVMTRDVI DSIAEHIDGD LNKFVYTPND YAVVTEPVIL QKFKVVAPTD
     PDRVVTIVGN SNPEDKVRAL TPADILAEMS YFLNLAEGIG KVDDIDHLGN RRIRAVGELL
     ANQFRIGLAR MERNVRERMS VQDNEVLTPQ QIINIRPVTA AVKEFFGSSQ LSQFMDQHNP
     LSELSHKRRL SALGPGGLTR DRAGYEVRDV HYTHYGRMCP IETPEGPNIG LINNLSSFGH
     LNKYGFIQTP YRKVDRSTGA VTNEIVWLTA DEEDEFTVAQ ANSKLNEDGT FAEEIVMGRH
     QGNNQEFPSS IVDFVDVSPK QVVAVATACI PFLENDDSNR ALMGANMQRQ AVPLIDPKAP
     YVGTGMEYQA AHDSGAAVIA KHDGRVIFSD AEKVEVRRED GSLDVYHVQK FRRSNSGTAY
     NQRTLVKVGD LVEKGDFIAD GPSMENGEMA LGQNPVVAYM TWEGYNFEDA VIMSERLVKE
     DVYTSVHLEE FESETRDTKL GPEEITREIP NVGEDSLRDL DEMGIIRIGA EVKEGDILVG
     KVTPKGEKDL SAEERLLHAI FGDKSREVRD TSLRVPHGGD GVVRDVKIFT RANGDELQSG
     VNMLVRVYIA QKRKIKVGDK MAGRHGNKGV VSRIVPVEDM PYLPDGTPVD IMLNPLGVPS
     RMNIGQVMEL HLGMAARNLG IHIATPVFDG ASSEDLWETV QEAGMDSDAK TVLYDGRTGE
     PFDNRVSVGV MYMIKLHHMV DDKLHARSVG PYSLVTQQPL GGKAQFGGQR FGEMEVWALE
     AYGASNVLQE ILTYKSDDVT GRLKAYEAIT KGKPIPKPGV PESFRVLVKE LQSLGLDMRV
     LDEDDNEVEL RDLDEGEDDD VMHVDDLEKA RVKQEAEEKQ AEQVSEVVQE D