ID   HJA1_METJA              Reviewed;          67 AA.
AC   Q57632;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   25-MAY-2022, entry version 97.
DE   RecName: Full=Probable archaeal histone 1;
GN   OrderedLocusNames=MJ0168;
OS   Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM
OS   10045 / NBRC 100440) (Methanococcus jannaschii).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanocaldococcaceae; Methanocaldococcus.
OX   NCBI_TaxID=243232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440;
RX   PubMed=8688087; DOI=10.1126/science.273.5278.1058;
RA   Bult C.J., White O., Olsen G.J., Zhou L., Fleischmann R.D., Sutton G.G.,
RA   Blake J.A., FitzGerald L.M., Clayton R.A., Gocayne J.D., Kerlavage A.R.,
RA   Dougherty B.A., Tomb J.-F., Adams M.D., Reich C.I., Overbeek R.,
RA   Kirkness E.F., Weinstock K.G., Merrick J.M., Glodek A., Scott J.L.,
RA   Geoghagen N.S.M., Weidman J.F., Fuhrmann J.L., Nguyen D., Utterback T.R.,
RA   Kelley J.M., Peterson J.D., Sadow P.W., Hanna M.C., Cotton M.D.,
RA   Roberts K.M., Hurst M.A., Kaine B.P., Borodovsky M., Klenk H.-P.,
RA   Fraser C.M., Smith H.O., Woese C.R., Venter J.C.;
RT   "Complete genome sequence of the methanogenic archaeon, Methanococcus
RT   jannaschii.";
RL   Science 273:1058-1073(1996).
CC   -!- FUNCTION: Binds and compact DNA (95 to 150 base pairs) to form
CC       nucleosome-like structures that contain positive DNA supercoils.
CC       Increases the resistance of DNA to thermal denaturation (in vitro).
CC       {ECO:0000250|UniProtKB:P19267}.
CC   -!- SUBUNIT: Homodimer or heterodimer with another histone. Dimers then
CC       assemble into higher oligomers, with the DNA wrapped around the protein
CC       core (By similarity). {ECO:0000250|UniProtKB:P19267}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}. Chromosome
CC       {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the archaeal histone HMF family. {ECO:0000305}.
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DR   EMBL; L77117; AAB98153.1; -; Genomic_DNA.
DR   PIR; A64321; A64321.
DR   RefSeq; WP_010869663.1; NC_000909.1.
DR   AlphaFoldDB; Q57632; -.
DR   SMR; Q57632; -.
DR   STRING; 243232.MJ_0168; -.
DR   EnsemblBacteria; AAB98153; AAB98153; MJ_0168.
DR   GeneID; 8803940; -.
DR   KEGG; mja:MJ_0168; -.
DR   eggNOG; arCOG02144; Archaea.
DR   HOGENOM; CLU_192667_0_0_2; -.
DR   InParanoid; Q57632; -.
DR   OMA; CKHAGRK; -.
DR   PhylomeDB; Q57632; -.
DR   Proteomes; UP000000805; Chromosome.
DR   GO; GO:0005694; C:chromosome; IEA:UniProtKB-SubCell.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0046982; F:protein heterodimerization activity; IEA:InterPro.
DR   GO; GO:0006352; P:DNA-templated transcription, initiation; IEA:InterPro.
DR   Gene3D; 1.10.20.10; -; 1.
DR   InterPro; IPR003958; CBFA_NFYB_domain.
DR   InterPro; IPR009072; Histone-fold.
DR   InterPro; IPR004823; TAF_TATA-bd_Histone-like_dom.
DR   Pfam; PF00808; CBFD_NFYB_HMF; 1.
DR   SMART; SM00803; TAF; 1.
DR   SUPFAM; SSF47113; SSF47113; 1.
PE   3: Inferred from homology;
KW   Chromosome; Cytoplasm; DNA-binding; Reference proteome.
FT   CHAIN           1..67
FT                   /note="Probable archaeal histone 1"
FT                   /id="PRO_0000154987"
FT   REGION          20..22
FT                   /note="Interaction with DNA"
FT                   /evidence="ECO:0000250|UniProtKB:P19267"
FT   REGION          54..57
FT                   /note="Interaction with DNA"
FT                   /evidence="ECO:0000250|UniProtKB:P19267"
FT   SITE            14
FT                   /note="Interaction with DNA"
FT                   /evidence="ECO:0000250|UniProtKB:P19267"
SQ   SEQUENCE   67 AA;  7384 MW;  103E8B391D9C927C CRC64;
     MAELPVAPFE RILKKAGAER VSRAAAEYLA EAVEEIALEI AKEAVELAKH AKRKTVKVED
     IKLALKK