ID   HCT1_CHLT2              Reviewed;         125 AA.
AC   B0B8W9; O84748; Q02281; Q9R5S5;
DT   02-MAR-2010, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 52.
DE   RecName: Full=Histone H1-like protein Hc1;
DE   AltName: Full=18 kDa histone analog;
GN   Name=hctA; OrderedLocusNames=CTL0112;
OS   Chlamydia trachomatis serovar L2 (strain 434/Bu / ATCC VR-902B).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=471472;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 2-22.
RX   PubMed=1708378; DOI=10.1128/jb.173.9.2818-2822.1991;
RA   Tao S., Kaul R., Wenman W.M.;
RT   "Identification and nucleotide sequence of a developmentally regulated gene
RT   encoding a eukaryotic histone H1-like protein from Chlamydia trachomatis.";
RL   J. Bacteriol. 173:2818-2822(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PARTIAL PROTEIN SEQUENCE.
RX   PubMed=2023942; DOI=10.1073/pnas.88.9.3937;
RA   Hackstadt T., Baehr W., Ying Y.;
RT   "Chlamydia trachomatis developmentally regulated protein is homologous to
RT   eukaryotic histone H1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 88:3937-3941(1991).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=434/Bu / ATCC VR-902B;
RX   PubMed=18032721; DOI=10.1101/gr.7020108;
RA   Thomson N.R., Holden M.T.G., Carder C., Lennard N., Lockey S.J., Marsh P.,
RA   Skipp P., O'Connor C.D., Goodhead I., Norbertzcak H., Harris B., Ormond D.,
RA   Rance R., Quail M.A., Parkhill J., Stephens R.S., Clarke I.N.;
RT   "Chlamydia trachomatis: genome sequence analysis of lymphogranuloma
RT   venereum isolates.";
RL   Genome Res. 18:161-171(2008).
CC   -!- FUNCTION: Might have a role analogous to that of eukaryotic histone
CC       proteins.
CC   -!- DEVELOPMENTAL STAGE: Specific to the EB (elementary body) form in the
CC       life cycle of chlamydiae.
CC   -!- SIMILARITY: Belongs to the histone H1/H5 family. HCT subfamily.
CC       {ECO:0000305}.
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DR   EMBL; X57311; CAA40563.1; -; Genomic_DNA.
DR   EMBL; M60902; AAA23129.1; -; Genomic_DNA.
DR   EMBL; AM884176; CAP03556.1; -; Genomic_DNA.
DR   PIR; A39396; A39396.
DR   RefSeq; WP_009873344.1; NC_010287.1.
DR   RefSeq; YP_001654203.1; NC_010287.1.
DR   AlphaFoldDB; B0B8W9; -.
DR   SMR; B0B8W9; -.
DR   EnsemblBacteria; CAP03556; CAP03556; CTL0112.
DR   KEGG; ctb:CTL0112; -.
DR   PATRIC; fig|471472.4.peg.122; -.
DR   HOGENOM; CLU_148744_0_0_0; -.
DR   OMA; IQHDLAK; -.
DR   Proteomes; UP000000795; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0030527; F:structural constituent of chromatin; IEA:InterPro.
DR   InterPro; IPR010886; Hc1.
DR   Pfam; PF07432; Hc1; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; DNA-binding; Repeat.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:1708378"
FT   CHAIN           2..125
FT                   /note="Histone H1-like protein Hc1"
FT                   /id="PRO_0000391797"
FT   REGION          98..125
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   125 AA;  13699 MW;  E1E53DEB945312D3 CRC64;
     MALKDTAKKM TDLLESIQQN LLKAEKGNKA AAQRVRTESI KLEKTAKVYR KESIKAEKMG
     LMKKSKAAAK KAKAAAKKPV RATKTVAKKA CTKRTCATKA KVKPTKKAAP KTKVKTAKKT
     RSTKK