ID   HSP1_MYRFA              Reviewed;          63 AA.
AC   P67845; P42140; P42150; P42154;
DT   11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 38.
DE   RecName: Full=Sperm protamine P1;
GN   Name=PRM1;
OS   Myrmecobius fasciatus (Numbat).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Metatheria; Dasyuromorphia; Myrmecobiidae; Myrmecobius.
OX   NCBI_TaxID=55782;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9225481; DOI=10.1098/rspb.1997.0126;
RA   Krajewski C., Buckley L., Westerman M.;
RT   "DNA phylogeny of the marsupial wolf resolved.";
RL   Proc. R. Soc. B 264:911-917(1997).
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; U87139; AAB91327.1; -; Genomic_DNA.
DR   AlphaFoldDB; P67845; -.
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_0000191505"
FT   REGION          1..63
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   63 AA;  8697 MW;  99A6BEA7CBB77964 CRC64;
     MARYRRHSRS RSRSRYRRRR RRRSRHHNRR RTYRRSRRHS RRRRGRRRGY SRRRYSRRGR
     RRY