ID   PRTZ3_SCYCA             Reviewed;          37 AA.
AC   P30258;
DT   01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1993, sequence version 1.
DT   25-MAY-2022, entry version 53.
DE   RecName: Full=Protamine Z3;
DE   AltName: Full=Scylliorhinine Z3;
OS   Scyliorhinus canicula (Small-spotted catshark) (Squalus canicula).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC   Elasmobranchii; Galeomorphii; Galeoidea; Carcharhiniformes; Scyliorhinidae;
OC   Scyliorhinus.
OX   NCBI_TaxID=7830;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Testis;
RX   PubMed=7198042; DOI=10.1111/j.1432-1033.1981.tb05601.x;
RA   Sautiere P., Briand G., Gusse M., Chevaillier P.;
RT   "Primary structure of the protamine isolated from the sperm nuclei of the
RT   dog-fish Scylliorhinus caniculus.";
RL   Eur. J. Biochem. 119:251-255(1981).
RN   [2]
RP   SEQUENCE REVISION.
RX   PubMed=8448201; DOI=10.1016/0167-4838(93)90134-d;
RA   Kouach M., Jaquinod M., Belaiche D., Sautiere P., van Dorsselaer A.,
RA   Chevaillier P., Briand G.;
RT   "A corrected primary structure for dog-fish Scylliorhinus caniculus
RT   protamine Z3.";
RL   Biochim. Biophys. Acta 1162:99-104(1993).
RN   [3]
RP   PROTEIN SEQUENCE OF 1-5.
RX   PubMed=6615852; DOI=10.1016/0167-4838(83)90031-6;
RA   Gusse M., Sautiere P., Chauviere M., Chevaillier P.;
RT   "Extraction, purification and characterization of the sperm protamines of
RT   the dog-fish Scylliorhinus caniculus.";
RL   Biochim. Biophys. Acta 748:93-98(1983).
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   PIR; S29829; S29829.
DR   AlphaFoldDB; P30258; -.
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   1: Evidence at protein level;
KW   Chromosome; Developmental protein; Differentiation;
KW   Direct protein sequencing; DNA condensation; DNA-binding; Nucleosome core;
KW   Nucleus; Spermatogenesis.
FT   PEPTIDE         1..37
FT                   /note="Protamine Z3"
FT                   /id="PRO_0000044850"
FT   REGION          1..37
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   37 AA;  4748 MW;  EC2366D6C38D5091 CRC64;
     ARSRSRRSYG RGRRRGGRRR RRRRRRRRGG RRGRRSR