ID   H1B_PLADU               Reviewed;         119 AA.
AC   P06895;
DT   01-JAN-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1988, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Histone H1B, sperm;
OS   Platynereis dumerilii (Dumeril's clam worm).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Annelida; Polychaeta;
OC   Errantia; Phyllodocida; Nereididae; Platynereis.
OX   NCBI_TaxID=6359;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=4018088; DOI=10.1111/j.1432-1033.1985.tb09028.x;
RA   Kmiecik D., Sellos D., Belaiche D., Sautiere P.;
RT   "Primary structure of the two variants of a sperm-specific histone H1 from
RT   the annelid Platynereis dumerilii.";
RL   Eur. J. Biochem. 150:359-370(1985).
CC   -!- FUNCTION: Histones H1 are necessary for the condensation of nucleosome
CC       chains into higher-order structures.
CC   -!- SUBCELLULAR LOCATION: Nucleus. Chromosome.
CC   -!- SIMILARITY: Belongs to the histone H1/H5 family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00837}.
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DR   PIR; B24560; HSDU1B.
DR   AlphaFoldDB; P06895; -.
DR   SMR; P06895; -.
DR   GO; GO:0000786; C:nucleosome; IEA:InterPro.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006334; P:nucleosome assembly; IEA:InterPro.
DR   CDD; cd00073; H15; 1.
DR   Gene3D; 1.10.10.10; -; 1.
DR   InterPro; IPR005818; Histone_H1/H5_H15.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   InterPro; IPR036390; WH_DNA-bd_sf.
DR   Pfam; PF00538; Linker_histone; 1.
DR   SMART; SM00526; H15; 1.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   PROSITE; PS51504; H15; 1.
PE   1: Evidence at protein level;
KW   Chromosome; Direct protein sequencing; DNA-binding; Nucleus.
FT   CHAIN           1..119
FT                   /note="Histone H1B, sperm"
FT                   /id="PRO_0000195980"
FT   DOMAIN          8..77
FT                   /note="H15"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00837"
FT   REGION          76..119
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        77..119
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   119 AA;  13099 MW;  CA18E93EE5963858 CRC64;
     ARRKRAATHP PVATAVVAAI LGLKDRKGSS MVAIKKYLAA NYNVDVARLG PFIRRFVRKA
     VAEGMLVQNK GSFRVNKTAL PKKKKAAKKP KAKKVKKPKS AAKKKTNRAR APKTKKNRN