ID   MOSH_CLYJA              Reviewed;           9 AA.
AC   P19852;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   11-DEC-2019, entry version 30.
DE   RecName: Full=Sperm-activating peptide SAP-b;
DE   AltName: Full=[His6]-mosact;
OS   Clypeaster japonicus (Sand dollar).
OC   Eukaryota; Metazoa; Echinodermata; Eleutherozoa; Echinozoa; Echinoidea;
OC   Euechinoidea; Gnathostomata; Clypeasteroida; Clypeasteridae; Clypeaster.
OX   NCBI_TaxID=7644;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Egg jelly;
RA   Suzuki N., Kurita M., Yoshino K.I., Kajiura H., Nomura K., Yamaguchi M.;
RT   "Purification and structure of mosact and its derivatives from the egg
RT   jelly of the sea urchin Clypeaster japonicus.";
RL   Zool. Sci. 4:649-656(1987).
RN   [2]
RP   BROMINATION AT HIS-6.
RX   PubMed=2076468; DOI=10.1002/bms.1200191109;
RA   Takao T., Yoshino K., Suzuki N., Shimonishi Y.;
RT   "Analysis of post-translational modifications of proteins by accurate mass
RT   measurement in fast atom bombardment mass spectrometry.";
RL   Biomed. Environ. Mass Spectrom. 19:705-712(1990).
CC   -!- FUNCTION: Stimulates sperm respiration and motility.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   PIR; JN0026; JN0026.
PE   1: Evidence at protein level;
KW   Bromination; Direct protein sequencing.
FT   PEPTIDE         1..9
FT                   /note="Sperm-activating peptide SAP-b"
FT                   /id="PRO_0000044171"
FT   MOD_RES         6
FT                   /note="Bromohistidine"
FT                   /evidence="ECO:0000269|PubMed:2076468"
SQ   SEQUENCE   9 AA;  914 MW;  93245721EDC5BAB5 CRC64;
     DSDSAHLIG