ID   RNS_SAITA               Reviewed;         104 AA.
AC   Q29538;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=Seminal ribonuclease;
DE            Short=Seminal RNase;
DE            EC=4.6.1.18;
DE   Flags: Fragment;
GN   Name=SRN;
OS   Saiga tatarica (Saiga antelope).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Artiodactyla; Ruminantia; Pecora; Bovidae;
OC   Antilopinae; Saiga.
OX   NCBI_TaxID=34875;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Semen;
RX   PubMed=8605993; DOI=10.1016/0014-5793(96)00191-3;
RA   Trabesinger-Ruef N., Jermann T., Zankel T., Durrant B., Frank G.,
RA   Benner S.A.;
RT   "Pseudogenes in ribonuclease evolution: a source of new biomacromolecular
RT   function?";
RL   FEBS Lett. 382:319-322(1996).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an [RNA] containing cytidine + H2O = an [RNA]-3'-cytidine-3'-
CC         phosphate + a 5'-hydroxy-ribonucleotide-3'-[RNA].; EC=4.6.1.18;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an [RNA] containing uridine + H2O = an [RNA]-3'-uridine-3'-
CC         phosphate + a 5'-hydroxy-ribonucleotide-3'-[RNA].; EC=4.6.1.18;
CC   -!- SUBUNIT: Homodimer; disulfide-linked. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the pancreatic ribonuclease family.
CC       {ECO:0000305}.
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DR   EMBL; S81528; AAB39846.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q29538; -.
DR   SMR; Q29538; -.
DR   PRIDE; Q29538; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0016829; F:lyase activity; IEA:UniProtKB-KW.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR   GO; GO:0004522; F:ribonuclease A activity; IEA:UniProtKB-EC.
DR   Gene3D; 3.10.130.10; -; 1.
DR   InterPro; IPR001427; RNaseA.
DR   InterPro; IPR036816; RNaseA-like_dom_sf.
DR   InterPro; IPR023411; RNaseA_AS.
DR   InterPro; IPR023412; RNaseA_domain.
DR   PANTHER; PTHR11437; PTHR11437; 1.
DR   Pfam; PF00074; RnaseA; 1.
DR   PRINTS; PR00794; RIBONUCLEASE.
DR   SMART; SM00092; RNAse_Pc; 1.
DR   SUPFAM; SSF54076; SSF54076; 1.
DR   PROSITE; PS00127; RNASE_PANCREATIC; 1.
PE   3: Inferred from homology;
KW   Disulfide bond; Endonuclease; Hydrolase; Lyase; Nuclease; Secreted.
FT   CHAIN           <1..>104
FT                   /note="Seminal ribonuclease"
FT                   /id="PRO_0000057171"
FT   BINDING         27..31
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         52
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         71
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   DISULFID        12..70
FT                   /evidence="ECO:0000250"
FT   DISULFID        18
FT                   /note="Interchain"
FT                   /evidence="ECO:0000250"
FT   DISULFID        26..81
FT                   /evidence="ECO:0000250"
FT   DISULFID        44..96
FT                   /evidence="ECO:0000250"
FT   DISULFID        51..58
FT                   /evidence="ECO:0000250"
FT   NON_TER         1
FT   NON_TER         104
SQ   SEQUENCE   104 AA;  11377 MW;  9376BAEC17C5990F CRC64;
     SGSSPSSNSN YCNVMMFCRK MTQGKCKPVN TFAHEFLADV QAVCSQKKVT CKNGQTNCYQ
     SNSAMSITDC RQTGSSKYPN CAYKTTQAQK HIIVACEGNP YVPV