ID   HSP1_COTJA              Reviewed;          57 AA.
AC   P14402;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=Sperm histone;
DE   AltName: Full=Protamine;
OS   Coturnix japonica (Japanese quail) (Coturnix coturnix japonica).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC   Coelurosauria; Aves; Neognathae; Galloanserae; Galliformes; Phasianidae;
OC   Perdicinae; Coturnix.
OX   NCBI_TaxID=93934;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=2808336; DOI=10.1016/s0021-9258(19)84613-6;
RA   Oliva R., Goren R., Dixon G.H.;
RT   "Quail (Coturnix japonica) protamine, full-length cDNA sequence, and the
RT   function and evolution of vertebrate protamines.";
RL   J. Biol. Chem. 264:17627-17630(1989).
CC   -!- FUNCTION: Protamines substitute for histones in the chromatin of sperm
CC       during the haploid phase of spermatogenesis. They compact sperm DNA
CC       into a highly condensed, stable and inactive complex.
CC   -!- SUBCELLULAR LOCATION: Nucleus. Chromosome.
CC   -!- TISSUE SPECIFICITY: Testis.
CC   -!- SIMILARITY: Belongs to the protamine P1 family. {ECO:0000305}.
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DR   EMBL; M30275; AAA49498.1; -; mRNA.
DR   PIR; A34356; A34356.
DR   AlphaFoldDB; P14402; -.
DR   PRIDE; P14402; -.
DR   Proteomes; UP000694412; Unplaced.
DR   GO; GO:0000786; C:nucleosome; IEA:UniProtKB-KW.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0030261; P:chromosome condensation; IEA:UniProtKB-KW.
DR   GO; GO:0035092; P:sperm DNA condensation; IEA:InterPro.
DR   InterPro; IPR000221; Protamine_P1.
DR   PROSITE; PS00048; PROTAMINE_P1; 1.
PE   2: Evidence at transcript level;
KW   Chromosome; Developmental protein; Differentiation; DNA condensation;
KW   DNA-binding; Nucleosome core; Nucleus; Phosphoprotein; Reference proteome;
KW   Spermatogenesis.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250|UniProtKB:P15340"
FT   CHAIN           2..57
FT                   /note="Sperm histone"
FT                   /id="PRO_0000191590"
FT   REGION          1..57
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         9
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   57 AA;  7828 MW;  55C9406312A44FAB CRC64;
     MARYRRTRTR SRSRRRRRSR RRRSSRRRRY GRSRRSYRSV GRRRRRYGRR RRRRRRY