ID   NUSB_PSYA2              Reviewed;         375 AA.
AC   Q4FPZ1;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   25-MAY-2022, entry version 102.
DE   RecName: Full=Transcription antitermination protein NusB {ECO:0000255|HAMAP-Rule:MF_00073};
DE   AltName: Full=Antitermination factor NusB {ECO:0000255|HAMAP-Rule:MF_00073};
GN   Name=nusB {ECO:0000255|HAMAP-Rule:MF_00073}; OrderedLocusNames=Psyc_2070;
OS   Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Psychrobacter.
OX   NCBI_TaxID=259536;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17307 / VKM B-2377 / 273-4;
RX   PubMed=20154119; DOI=10.1128/aem.02101-09;
RA   Ayala-del-Rio H.L., Chain P.S., Grzymski J.J., Ponder M.A., Ivanova N.,
RA   Bergholz P.W., Di Bartolo G., Hauser L., Land M., Bakermans C.,
RA   Rodrigues D., Klappenbach J., Zarka D., Larimer F., Richardson P.,
RA   Murray A., Thomashow M., Tiedje J.M.;
RT   "The genome sequence of Psychrobacter arcticus 273-4, a psychroactive
RT   Siberian permafrost bacterium, reveals mechanisms for adaptation to low-
RT   temperature growth.";
RL   Appl. Environ. Microbiol. 76:2304-2312(2010).
CC   -!- FUNCTION: Involved in transcription antitermination. Required for
CC       transcription of ribosomal RNA (rRNA) genes. Binds specifically to the
CC       boxA antiterminator sequence of the ribosomal RNA (rrn) operons.
CC       {ECO:0000255|HAMAP-Rule:MF_00073}.
CC   -!- SIMILARITY: Belongs to the NusB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00073}.
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DR   EMBL; CP000082; AAZ19917.1; -; Genomic_DNA.
DR   RefSeq; WP_011281324.1; NC_007204.1.
DR   AlphaFoldDB; Q4FPZ1; -.
DR   SMR; Q4FPZ1; -.
DR   STRING; 259536.Psyc_2070; -.
DR   EnsemblBacteria; AAZ19917; AAZ19917; Psyc_2070.
DR   KEGG; par:Psyc_2070; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_882419_0_0_6; -.
DR   OMA; HEMMRDI; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000546; Chromosome.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:0031564; P:transcription antitermination; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.940.10; -; 1.
DR   HAMAP; MF_00073; NusB; 1.
DR   InterPro; IPR035926; NusB-like_sf.
DR   InterPro; IPR011605; NusB_fam.
DR   InterPro; IPR006027; NusB_RsmB_TIM44.
DR   Pfam; PF01029; NusB; 1.
DR   SUPFAM; SSF48013; SSF48013; 1.
DR   TIGRFAMs; TIGR01951; nusB; 1.
PE   3: Inferred from homology;
KW   Reference proteome; RNA-binding; Transcription;
KW   Transcription antitermination; Transcription regulation.
FT   CHAIN           1..375
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265567"
FT   REGION          25..44
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          203..255
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   375 AA;  41193 MW;  367749526F8BA97E CRC64;
     MTDQLKRAIS AAQTAQINDQ QAEATRIASS SAGDQTFDMS ESSYKTSHTA IRKARRFAMQ
     GLYEWLVTDR RFDIDGKLGW KANAPHDIAA RTRATNAMHT VHIGYYHEMM RDIPEQIDAL
     NTLITQQLDR EINKLDTVEH AILLIGAYEL QNRLEIPYKV VLDEAMKLNN HFGATDAHKL
     INAVLDRMAV ELRAPEIEAD SKANLRTSQK AAAKPALKTD NSTNNNADID TTTVAEKPTA
     SNKPRISANN TSVKRNSASK ALANISDYKA SKQNDAQNMV EESIIKPASI EPVIADKANA
     FAASAENIVN HQPVEENVPA SNDVNDNTTS LAEVELLDSN SVDVDIKGVD IKNIDVKEDA
     SESVELNDAD AKNQD