ID   HSP1_ALOSE              Reviewed;          52 AA.
AC   P35302;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 65.
DE   RecName: Full=Sperm protamine P1;
GN   Name=PRM1;
OS   Alouatta seniculus (Red howler monkey).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Platyrrhini; Atelidae;
OC   Alouattinae; Alouatta.
OX   NCBI_TaxID=9503;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8308910; DOI=10.1007/bf00178872;
RA   Retief J.D., Winkfein R.J., Dixon G.H., Adroer R., Queralt R.,
RA   Ballabriga J., Oliva R.;
RT   "Evolution of protamine P1 genes in primates.";
RL   J. Mol. Evol. 37:426-434(1993).
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   -!- SUBUNIT: Cross-linked by interchain disulfide bonds around the DNA-
CC       helix.
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; L14592; AAA51404.1; -; Genomic_DNA.
DR   AlphaFoldDB; P35302; -.
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   Pfam; PF00260; Protamine_P1; 1.
DR   PROSITE; PS00048; PROTAMINE_P1; 1.
PE   2: Evidence at transcript level;
KW   Chromosome; Developmental protein; Differentiation; Disulfide bond;
KW   DNA condensation; DNA-binding; Nucleosome core; Nucleus; Spermatogenesis.
FT   CHAIN           1..52
FT                   /note="Sperm protamine P1"
FT                   /id="PRO_0000191438"
SQ   SEQUENCE   52 AA;  6954 MW;  4F5971239A7198EB CRC64;
     MARYRCCRSR SLSRSRCYRQ RPRCRRRRRR SCRRPRASRC CRRRYRLRRR RY