ID   STP3_PIG                Reviewed;          76 AA.
AC   Q7M2P1;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   25-MAY-2022, entry version 36.
DE   RecName: Full=Spermatid nuclear transition protein 3;
DE            Short=STP-3;
DE            Short=TP-3;
DE            Short=TP3;
GN   Name=TNP3;
OS   Sus scrofa (Pig).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Artiodactyla; Suina; Suidae; Sus.
OX   NCBI_TaxID=9823;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Spermatid;
RX   PubMed=8188637; DOI=10.1093/oxfordjournals.jbchem.a124305;
RA   Akama K., Oka S., Tobita T., Hayashi H.;
RT   "The amino acid sequence of a boar transition protein 3.";
RL   J. Biochem. 115:58-65(1994).
CC   -!- FUNCTION: Involved in nuclear basic protein transition: histones are
CC       replaced by spermatid specific proteins which are themselves replaced
CC       by protamines in late spermatids.
CC   -!- SUBCELLULAR LOCATION: Nucleus. Chromosome.
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DR   PIR; JX0304; JX0304.
DR   AlphaFoldDB; Q7M2P1; -.
DR   SMR; Q7M2P1; -.
DR   PRIDE; Q7M2P1; -.
DR   OMA; TTNTKRW; -.
DR   Proteomes; UP000008227; Unplaced.
DR   Proteomes; UP000314985; 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:0030154; P:cell differentiation; IEA:UniProtKB-KW.
DR   GO; GO:0007283; P:spermatogenesis; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Chromosome; Developmental protein; Differentiation;
KW   Direct protein sequencing; DNA-binding; Nucleosome core; Nucleus;
KW   Reference proteome; Spermatogenesis.
FT   CHAIN           1..76
FT                   /note="Spermatid nuclear transition protein 3"
FT                   /id="PRO_0000191434"
FT   REGION          1..34
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          56..76
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        15..34
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   76 AA;  9134 MW;  A7E55C008C49EEE2 CRC64;
     AKVTEKSWQP QTTSTKRWKK RKTPSQPRSR GKVRKIYKKV KRPLHVCSRK KYSPKVITTS
     RRQKRARRAN KFETIP