ID   OCS1_MAIZE              Reviewed;         151 AA.
AC   P24068;
DT   01-MAR-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 2.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=Ocs element-binding factor 1;
DE            Short=OCSBF-1;
GN   Name=OBF1;
OS   Zea mays (Maize).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX   NCBI_TaxID=4577;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Root;
RX   PubMed=2152133; DOI=10.2307/3869325;
RA   Singh K., Dennis E.S., Ellis J.G., Llewellyn D.J., Tokuhisa J.G.,
RA   Wahleithner J.A., Peacock W.J.;
RT   "OCSBF-1, a maize ocs enhancer binding factor: isolation and expression
RT   during development.";
RL   Plant Cell 2:891-903(1990).
RN   [2]
RP   SEQUENCE REVISION TO C-TERMINUS.
RA   Singh K.B.;
RL   Submitted (JAN-1994) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: May contribute to developmentally specific patterns of gene
CC       expression. Binds specifically to ocs elements which are
CC       transcriptional enhancer found in the promoters of several plant genes.
CC       OCSBF-1 is able to bind to a site within each half of the ocs element
CC       as well as to animal AP-1 and CREB sites.
CC   -!- SUBCELLULAR LOCATION: Nucleus.
CC   -!- TISSUE SPECIFICITY: Roots and shoots of young plants, and basal portion
CC       of leaves.
CC   -!- MISCELLANEOUS: A derivative of OCSBF-1 that contains only the 76 N-
CC       terminal amino acids is still able to bind to the ocs element.
CC   -!- SIMILARITY: Belongs to the bZIP family. {ECO:0000305}.
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DR   EMBL; X62745; CAA44607.1; -; mRNA.
DR   PIR; JQ0984; JQ0984.
DR   PIR; T03642; T03642.
DR   RefSeq; NP_001105439.1; NM_001111969.1.
DR   AlphaFoldDB; P24068; -.
DR   SMR; P24068; -.
DR   PaxDb; P24068; -.
DR   PRIDE; P24068; -.
DR   GeneID; 542394; -.
DR   KEGG; zma:542394; -.
DR   MaizeGDB; 64064; -.
DR   eggNOG; ENOG502S1GC; Eukaryota.
DR   OrthoDB; 1416695at2759; -.
DR   Proteomes; UP000007305; Unplaced.
DR   ExpressionAtlas; P24068; baseline and differential.
DR   GO; GO:0005634; C:nucleus; IBA:GO_Central.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IBA:GO_Central.
DR   GO; GO:0000976; F:transcription cis-regulatory region binding; IBA:GO_Central.
DR   GO; GO:0045893; P:positive regulation of transcription, DNA-templated; IBA:GO_Central.
DR   CDD; cd14702; bZIP_plant_GBF1; 1.
DR   InterPro; IPR004827; bZIP.
DR   InterPro; IPR045314; bZIP_plant_GBF1.
DR   InterPro; IPR046347; bZIP_sf.
DR   Pfam; PF00170; bZIP_1; 1.
DR   SMART; SM00338; BRLZ; 1.
DR   SUPFAM; SSF57959; SSF57959; 1.
DR   PROSITE; PS50217; BZIP; 1.
DR   PROSITE; PS00036; BZIP_BASIC; 1.
PE   2: Evidence at transcript level;
KW   DNA-binding; Nucleus; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..151
FT                   /note="Ocs element-binding factor 1"
FT                   /id="PRO_0000076564"
FT   DOMAIN          24..87
FT                   /note="bZIP"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   REGION          1..47
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          26..45
FT                   /note="Basic motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   REGION          52..59
FT                   /note="Leucine-zipper"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00978"
FT   COMPBIAS        1..18
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        19..47
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   151 AA;  16976 MW;  DCDB2B5F5A0245A6 CRC64;
     MSSSSLSPTA GRTSGSDGDS AADTHRREKR RLSNRESARR SRLRKQQHLD ELVQEVARLQ
     ADNARVAARA RDIASQYTRV EQENTVLRAR AAELGDRLRS VNEVLRLVEE FSGVAMDIQE
     EMPADDPLLR PWQLPYPAAA MPMGAPHMLH Y