ID   RPOB_LIBAF              Reviewed;         146 AA.
AC   P41187;
DT   01-FEB-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 2.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=DNA-directed RNA polymerase subunit beta;
DE            Short=RNAP subunit beta;
DE            EC=2.7.7.6;
DE   AltName: Full=RNA polymerase subunit beta;
DE   AltName: Full=Transcriptase subunit beta;
DE   Flags: Fragment;
GN   Name=rpoB;
OS   Liberibacter africanus (Citrus greening disease) (Liberobacter africanum).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Liberibacter.
OX   NCBI_TaxID=34020;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Nelspruit;
RX   PubMed=7765847; DOI=10.1007/bf00296198;
RA   Planet P., Jagoueix S., Bove J.M., Garnier M.;
RT   "Detection and characterization of the African citrus greening Liberobacter
RT   by amplification, cloning, and sequencing of the rplKAJL-rpoBC operon.";
RL   Curr. Microbiol. 30:137-141(1995).
CC   -!- FUNCTION: DNA-dependent RNA polymerase catalyzes the transcription of
CC       DNA into RNA using the four ribonucleoside triphosphates as substrates.
CC       {ECO:0000250}.
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;
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 (By
CC       similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the RNA polymerase beta chain family.
CC       {ECO:0000305}.
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DR   EMBL; U09675; AAA19557.1; -; Genomic_DNA.
DR   AlphaFoldDB; P41187; -.
DR   SMR; P41187; -.
DR   GO; GO:0000428; C:DNA-directed RNA polymerase complex; IEA:UniProtKB-KW.
DR   GO; GO:0003677; F:DNA binding; IEA:InterPro.
DR   GO; GO:0003899; F:DNA-directed 5'-3' RNA polymerase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006351; P:transcription, DNA-templated; IEA:InterPro.
DR   InterPro; IPR007644; RNA_pol_bsu_protrusion.
DR   Pfam; PF04563; RNA_pol_Rpb2_1; 1.
PE   3: Inferred from homology;
KW   DNA-directed RNA polymerase; Nucleotidyltransferase; Transcription;
KW   Transferase.
FT   CHAIN           1..>146
FT                   /note="DNA-directed RNA polymerase subunit beta"
FT                   /id="PRO_0000047913"
FT   NON_TER         146
SQ   SEQUENCE   146 AA;  16731 MW;  815D6EDD66FD8943 CRC64;
     MRRNDGERHC VQWSRGARKF FGKNPEIIDI PDLIEVQKAS YDQFLMMNTA PEDRPNEGLQ
     AAFKSVFPIK AFSGAAMLEF VSYEFDPPKF DVDDCLRRDL TYAVPLKIIL RLIVFDVDEF
     TGAKSIKDIK EQSIYMGDVP LMTKDG