ID   RPOB_LIRTU              Reviewed;        1070 AA.
AC   Q0G9M7;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 2.
DT   03-AUG-2022, entry version 64.
DE   RecName: Full=DNA-directed RNA polymerase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
DE            EC=2.7.7.6 {ECO:0000255|HAMAP-Rule:MF_01321};
DE   AltName: Full=PEP {ECO:0000255|HAMAP-Rule:MF_01321};
DE   AltName: Full=Plastid-encoded RNA polymerase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
DE            Short=RNA polymerase subunit beta {ECO:0000255|HAMAP-Rule:MF_01321};
GN   Name=rpoB {ECO:0000255|HAMAP-Rule:MF_01321};
OS   Liriodendron tulipifera (Tuliptree) (Tulip poplar).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Magnoliidae; Magnoliales; Magnoliaceae;
OC   Liriodendron.
OX   NCBI_TaxID=3415;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17020608; DOI=10.1186/1471-2148-6-77;
RA   Cai Z., Penaflor C., Kuehl J.V., Leebens-Mack J., Carlson J.E.,
RA   dePamphilis C.W., Boore J.L., Jansen R.K.;
RT   "Complete plastid genome sequences of Drimys, Liriodendron, and Piper:
RT   implications for the phylogenetic relationships of magnoliids.";
RL   BMC Evol. Biol. 6:77-77(2006).
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: In plastids the minimal PEP RNA polymerase catalytic core is
CC       composed of four subunits: alpha, beta, beta', and beta''. When a
CC       (nuclear-encoded) sigma factor is associated with the core the
CC       holoenzyme is formed, which can initiate transcription.
CC       {ECO:0000255|HAMAP-Rule:MF_01321}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the RNA polymerase beta chain family.
CC       {ECO:0000255|HAMAP-Rule:MF_01321}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABI32501.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; DQ899947; ABI32501.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; YP_740194.1; NC_008326.1.
DR   AlphaFoldDB; Q0G9M7; -.
DR   SMR; Q0G9M7; -.
DR   GeneID; 4266602; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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; -; 2.
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; 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; 3.
DR   Pfam; PF04563; RNA_pol_Rpb2_1; 1.
DR   Pfam; PF04561; RNA_pol_Rpb2_2; 1.
DR   Pfam; PF04565; RNA_pol_Rpb2_3; 1.
DR   Pfam; PF00562; RNA_pol_Rpb2_6; 1.
DR   Pfam; PF04560; RNA_pol_Rpb2_7; 1.
DR   PROSITE; PS01166; RNA_POL_BETA; 1.
PE   3: Inferred from homology;
KW   Chloroplast; DNA-directed RNA polymerase; Nucleotidyltransferase; Plastid;
KW   Transcription; Transferase.
FT   CHAIN           1..1070
FT                   /note="DNA-directed RNA polymerase subunit beta"
FT                   /id="PRO_0000276591"
SQ   SEQUENCE   1070 AA;  120348 MW;  527F99D78D49BB85 CRC64;
     MLRDGNEGMS TIPGFSQIQF EGFCRFIDQG LTEELHKFPK IEDTDQEIEF QLFVETYQLV
     EPLIKERDAV YESLTYSSEL YVPAGLIWKT GRDMQEQTVF IGNIPLMNSL GTSIVNGIYR
     IVINQILQSP GIYYRSELDH NGISVYTGTI ISDWGGRSEL EIDRKARIWA RVSRKQKISI
     LVLSSAMGSN LREILDNVCY PEIFLSFPND KEKKKIGSRE NAILEFYQQF ACVGGDPVFS
     ESLCKELQKK FFQQRCELGR IGRRNMNRRL NLDIPQNNTF LLPRDVLAAA DHLIGMKFGM
     GTLDDMNHLK NKRIRSVADL LQDQFGLALV RLENAVRGTI CGAIRHKLIP TPQNLVTSTP
     LTTTYESFFG LHPLSQVLDR TNPLTQIVHG RKSSYLGPGG LTGRTASFRI RDIHPSHYGR
     ICPIDTSEGI NVGLIGSLAI HARIGHWGSI ESPFYEISER SKEVQMVYLS PSRDEYYMVA
     AGNSLALNWG IQEEQVVPAR YRQEFLTIAW EQIHLRSIFP FQYFSIGASL IPFIEHNDAN
     RALMSSNMQR QAVPLSRSEK CIVGTGLECQ AALDSGVSAI AEHEGKIVYT DTDKIVLSGN
     GDTISIPLVM YQRSNKNTCM HQKPQVRRGK CIKKGQILAD GAATVGGELA LGKNVLVAYM
     PWEGYNSEDA VLISERLVYG DIYTSFHIRK YEIQTHVTSQ GPERITNEIP HLEAHLLRNL
     DKNGIVMLGS WIETGDILVG KLTPQTAKES SYAPEDRLLR AILGIQVSTA KETCLKLPIG
     GRGRVIDVRW IQKKGGSSYN PEMIRVYISQ KREIKVGDKV AGRHGNKGII SKILPRQDMP
     YLQDGTPVDM VFNPLGVPSR MNVGQIFECS LGLAGDLLDR HYRIAPFDER YEQEASRKLV
     FSELYSASKQ TANPWVFEPE CPGKSRIFDG RTGDPFEQPV IIGKSYILKL IHQVDDKIHG
     RSSGHYALVT QQPLRGRAKQ GGQRVGEMEV WALEGFGVAH ISQEMLTYKS DHIRARQEVL
     GTTIIGGTIP NPEDAPESFR LLVRELRSLA LELNHFLVSE KNFQINRKEA