TAF1B_ORYSI
ID TAF1B_ORYSI Reviewed; 634 AA.
AC B8AX23;
DT 18-APR-2012, integrated into UniProtKB/Swiss-Prot.
DT 03-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 52.
DE RecName: Full=TATA box-binding protein-associated factor RNA polymerase I subunit B;
DE AltName: Full=TATA box-binding protein-associated factor 1B;
DE Short=TBP-associated factor 1B;
GN ORFNames=OsI_19584;
OS Oryza sativa subsp. indica (Rice).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Oryzeae; Oryzinae; Oryza; Oryza sativa.
OX NCBI_TaxID=39946;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. 93-11;
RX PubMed=15685292; DOI=10.1371/journal.pbio.0030038;
RA Yu J., Wang J., Lin W., Li S., Li H., Zhou J., Ni P., Dong W., Hu S.,
RA Zeng C., Zhang J., Zhang Y., Li R., Xu Z., Li S., Li X., Zheng H., Cong L.,
RA Lin L., Yin J., Geng J., Li G., Shi J., Liu J., Lv H., Li J., Wang J.,
RA Deng Y., Ran L., Shi X., Wang X., Wu Q., Li C., Ren X., Wang J., Wang X.,
RA Li D., Liu D., Zhang X., Ji Z., Zhao W., Sun Y., Zhang Z., Bao J., Han Y.,
RA Dong L., Ji J., Chen P., Wu S., Liu J., Xiao Y., Bu D., Tan J., Yang L.,
RA Ye C., Zhang J., Xu J., Zhou Y., Yu Y., Zhang B., Zhuang S., Wei H.,
RA Liu B., Lei M., Yu H., Li Y., Xu H., Wei S., He X., Fang L., Zhang Z.,
RA Zhang Y., Huang X., Su Z., Tong W., Li J., Tong Z., Li S., Ye J., Wang L.,
RA Fang L., Lei T., Chen C.-S., Chen H.-C., Xu Z., Li H., Huang H., Zhang F.,
RA Xu H., Li N., Zhao C., Li S., Dong L., Huang Y., Li L., Xi Y., Qi Q.,
RA Li W., Zhang B., Hu W., Zhang Y., Tian X., Jiao Y., Liang X., Jin J.,
RA Gao L., Zheng W., Hao B., Liu S.-M., Wang W., Yuan L., Cao M.,
RA McDermott J., Samudrala R., Wang J., Wong G.K.-S., Yang H.;
RT "The genomes of Oryza sativa: a history of duplications.";
RL PLoS Biol. 3:266-281(2005).
CC -!- FUNCTION: Component of RNA polymerase I core factor complex that acts
CC as a GTF2B/TFIIB-like factor and plays a key role in multiple steps
CC during transcription initiation such as pre-initiation complex (PIC)
CC assembly and postpolymerase recruitment events in polymerase I (Pol I)
CC transcription. Binds rDNA promoters and plays a role in Pol I
CC recruitment (By similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000250}.
CC -!- DOMAIN: Although it shares weak sequence similarity with GTF2B/TFIIB,
CC displays a similar subdomain organization as GTF2B/TFIIB, with a N-
CC terminal zinc finger, a connecting region (composed of B-reader and B-
CC linker regions), followed by 2 cyclin folds. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the RRN7/TAF1B family. {ECO:0000305}.
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DR EMBL; CM000130; EEC79036.1; -; Genomic_DNA.
DR AlphaFoldDB; B8AX23; -.
DR STRING; 39946.B8AX23; -.
DR EnsemblPlants; BGIOSGA019668-TA; BGIOSGA019668-PA; BGIOSGA019668.
DR Gramene; BGIOSGA019668-TA; BGIOSGA019668-PA; BGIOSGA019668.
DR HOGENOM; CLU_011285_1_0_1; -.
DR OMA; MIWFRSL; -.
DR Proteomes; UP000007015; Chromosome 5.
DR GO; GO:0070860; C:RNA polymerase I core factor complex; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0001164; F:RNA polymerase I core promoter sequence-specific DNA binding; IEA:InterPro.
DR InterPro; IPR033599; TAF1B/Rrn7.
DR PANTHER; PTHR31576; PTHR31576; 1.
PE 3: Inferred from homology;
KW DNA-binding; Metal-binding; Nucleus; Reference proteome; Transcription;
KW Transcription regulation; Zinc; Zinc-finger.
FT CHAIN 1..634
FT /note="TATA box-binding protein-associated factor RNA
FT polymerase I subunit B"
FT /id="PRO_0000416878"
FT ZN_FING 19..51
FT /note="RRN7-type"
FT REGION 51..80
FT /note="B-reader"
FT /evidence="ECO:0000250"
FT REGION 56..117
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 81..83
FT /note="B-linker"
FT /evidence="ECO:0000250"
FT REGION 84..281
FT /note="N-terminal cyclin fold"
FT /evidence="ECO:0000250"
FT REGION 282..284
FT /note="C-terminal cyclin fold"
FT /evidence="ECO:0000250"
FT BINDING 21
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 24
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 42
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
FT BINDING 45
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000250"
SQ SEQUENCE 634 AA; 70539 MW; 6F5C3D45482CEB82 CRC64;
MDDDGGGSPG HYGGGGIHLV CEYCGHGSEY AEDDADNGFF TCRQCSAIHT STQNTATNPF
DFPMTPAHLS AHRRPTQPTP TPKPFPAPRG AATGAAAPDF DDLGEPSEPR DFATGANAWG
NPEDVAARVR WRYVRGLQVI LQRQLEALVE RHRVGSLAAS LAGTIWLRWV AASKVFDEMW
VHKMLAIAAS VEEGHSASKD KQSELEGDAQ KSQSSYEFLF LRSLRMMLPV YSTLAVCFLA
CHVARETILP TDICRWAMEG KLPYVAAFTQ VDKLLGSSLN DCPLSSRQLF RPTRVIGAWQ
LEAAAGSIAQ KIGLLLPSVN FYLIAQRFLK ELSLPIEKIL PHACRIYEWA MPAELWLSSN
PGRVPSRVCV MAILIVALRV LYGINGQGIW ESIAQTENAV GSDPEASAPH SIEPDSNNSE
EFDARELLCT LAASYDKIDV GHDYSKEVHS YLKYCKDVVF TGMTFSLEEE HLIDIFWDMY
KGKEVMLLDE NAKLCQEKLR TTNGVNKRCR DGRFADTKCC STPLGNCALQ SIKSKMEENG
FCYVSPRKRL VSDGYLLYTR RESSGSLIYV AHADYYILLR PFAKLAEVDV RVLHSSVLKL
ERRLGWIEER VGRSLNTLQN LHDEASDDER PVSD
