ID   PRT4_ONCMY              Reviewed;          31 AA.
AC   P02333;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   25-MAY-2022, entry version 53.
DE   RecName: Full=Protamine PTP4;
OS   Oncorhynchus mykiss (Rainbow trout) (Salmo gairdneri).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Protacanthopterygii; Salmoniformes;
OC   Salmonidae; Salmoninae; Oncorhynchus.
OX   NCBI_TaxID=8022;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=450133; DOI=10.1038/279809a0;
RA   Jenkins J.R.;
RT   "Sequence divergence of rainbow trout protamine mRNAs; comparison of coding
RT   and non-coding nucleotide sequences in three protamine cDNA plasmids.";
RL   Nature 279:809-811(1979).
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.
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DR   EMBL; X01204; CAA25623.1; -; mRNA.
DR   PIR; A02675; IRTR4.
DR   AlphaFoldDB; P02333; -.
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:0030154; P:cell differentiation; IEA:UniProtKB-KW.
DR   GO; GO:0030261; P:chromosome condensation; IEA:UniProtKB-KW.
DR   GO; GO:0007283; P:spermatogenesis; IEA:UniProtKB-KW.
PE   2: Evidence at transcript level;
KW   Chromosome; Developmental protein; Differentiation; DNA condensation;
KW   DNA-binding; Nucleosome core; Nucleus; Spermatogenesis.
FT   INIT_MET        1
FT                   /note="Removed"
FT   PEPTIDE         2..31
FT                   /note="Protamine PTP4"
FT                   /id="PRO_0000044309"
FT   REGION          1..31
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   31 AA;  4195 MW;  C74CBF9DCD97DCE3 CRC64;
     MPRRRRASRR IRRRRRPRVS RRRRGGRRRR R