ID   HSP1_SMIGR              Reviewed;          63 AA.
AC   Q9TUC3;
DT   16-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 55.
DE   RecName: Full=Sperm protamine P1;
GN   Name=PRM1;
OS   Sminthopsis griseoventer (Gray-bellied dunnart).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Metatheria; Dasyuromorphia; Dasyuridae; Sminthopsis.
OX   NCBI_TaxID=75756;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=10381317; DOI=10.1006/mpev.1998.0604;
RA   Blacket M.J., Krajewski C., Labrinidis A., Cambron B., Cooper S.,
RA   Westerman M.;
RT   "Systematic relationships within the dasyurid marsupial tribe Sminthopsini
RT   -- a multigene approach.";
RL   Mol. Phylogenet. Evol. 12:140-155(1999).
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 (By similarity).
CC       {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000250}. Chromosome {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Testis.
CC   -!- SIMILARITY: Belongs to the protamine P1 family. {ECO:0000305}.
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DR   EMBL; AF089878; AAD55337.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q9TUC3; -.
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; Spermatogenesis.
FT   CHAIN           1..63
FT                   /note="Sperm protamine P1"
FT                   /id="PRO_0000191566"
FT   REGION          1..63
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   63 AA;  8796 MW;  99A6A5A67BB77964 CRC64;
     MARYRRHSRS RSRSRYRRRR RRRSRHHNRR RTYRRSRRHS RRRRRRRRGY SRRRYSRRGR
     RRY