ID   HBP1B_WHEAT             Reviewed;         332 AA.
AC   P23923;
DT   01-MAR-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-1992, sequence version 1.
DT   03-AUG-2022, entry version 98.
DE   RecName: Full=Transcription factor HBP-1b(c38);
OS   Triticum aestivum (Wheat).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Triticodae; Triticeae; Triticinae; Triticum.
OX   NCBI_TaxID=4565;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=2026143; DOI=10.1002/j.1460-2075.1991.tb07666.x;
RA   Tabata T., Nakayama T., Mikami K., Iwabuchi M.;
RT   "HBP-1a and HBP-1b: leucine zipper-type transcription factors of wheat.";
RL   EMBO J. 10:1459-1467(1991).
CC   -!- FUNCTION: Transcriptional activator that binds specifically to the DNA
CC       sequence 5'-TGACG-3'. Recognizes ocs elements like the as-1 motif of
CC       the cauliflower mosaic virus 35S promoter. Binding to the as-1-like cis
CC       elements mediate auxin- and salicylic acid-inducible transcription.
CC       Binds to the hexamer motif 5'-ACGTCA-3' of histone gene promoters.
CC   -!- SUBUNIT: Binds DNA as a dimer.
CC   -!- SUBCELLULAR LOCATION: Nucleus.
CC   -!- SIMILARITY: Belongs to the bZIP family. {ECO:0000305}.
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DR   EMBL; X56782; CAA40102.1; -; mRNA.
DR   PIR; S15347; S15347.
DR   AlphaFoldDB; P23923; -.
DR   STRING; 4565.Traes_3B_5CABEBCE5.2; -.
DR   eggNOG; ENOG502QU32; Eukaryota.
DR   Proteomes; UP000019116; Unplaced.
DR   ExpressionAtlas; P23923; baseline and differential.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR   GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
DR   GO; GO:0006351; P:transcription, DNA-templated; IEA:InterPro.
DR   InterPro; IPR004827; bZIP.
DR   InterPro; IPR046347; bZIP_sf.
DR   InterPro; IPR025422; TGA_domain.
DR   Pfam; PF00170; bZIP_1; 1.
DR   Pfam; PF14144; DOG1; 1.
DR   SMART; SM00338; BRLZ; 1.
DR   SUPFAM; SSF57959; SSF57959; 1.
DR   PROSITE; PS50217; BZIP; 1.
DR   PROSITE; PS00036; BZIP_BASIC; 1.
DR   PROSITE; PS51806; DOG1; 1.
PE   2: Evidence at transcript level;
KW   Activator; Coiled coil; DNA-binding; Nucleus; Reference proteome;
KW   Transcription; Transcription regulation.
FT   CHAIN           1..332
FT                   /note="Transcription factor HBP-1b(c38)"
FT                   /id="PRO_0000076551"
FT   DOMAIN          44..107
FT                   /note="bZIP"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   DOMAIN          111..329
FT                   /note="DOG1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01147"
FT   REGION          1..48
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          46..66
FT                   /note="Basic motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   REGION          72..86
FT                   /note="Leucine-zipper"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   COILED          47..142
FT                   /evidence="ECO:0000255"
FT   COMPBIAS        34..48
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   332 AA;  36855 MW;  800A3F626E286283 CRC64;
     MAEASPRTET STDDTDENLM LEPGNAALAV VSDSSDRSRD KNGDQKTMRR LAQNREAARK
     SRLRKKAYVQ QLENSRLKLT QLEQELQRAR QQGIFISSSA DQSHSMSGNG ALAFDTEYAR
     WLEEHNRQVN ELRAAVNAHA GDTELRSVVE KIMSHYDEIF KQKGNAAKAD VFHVLSGMWK
     TPAERCFLWL GGFRPSELLK LLSTQLEPLT EQQLSGICNL QQSSQQAEDA LSQGMEALQQ
     SLAETLAGSI GSSGSGSTGN VANYMGQMAM AMGKLGTLEN FLSQADNLRQ QTLQQMQRIL
     TTRQSARALL VISDYSSRLR ALSSLWLARP KE