<Entry>
<Accession>Q8TC36</Accession>
        <ProteinName>SUN</ProteinName>
        <GeneName>SUN5</GeneName>
        <OS_id>9606</OS_id>
        <ReferenceProteome>None</ReferenceProteome>
        <SubcellularLocation>
<Location>SL-0178</Location>
<Location>SL-0179</Location>
<Location>SL-0182</Location>
<Comments>Nucleus inner membrane {ECO:0000305|PubMed:27640305}; Single-pass membrane protein {ECO:0000250|UniProtKB:Q9DA32}. Golgi apparatus {ECO:0000250|UniProtKB:Q9DA32}. Note=During spermiogenesis, traffics through the Golgi apparatus before reaching the round spermatid inner membrane of the nuclear envelope and later migrates to the coupling apparatus of the sperm during sperm head elongation and differentiation. In mature spermatozoa, is localized to the coupling apparatus of the sperm head and tail in the implementation fossa. {ECO:0000305|PubMed:27640305}.</Comments>
</SubcellularLocation>
<CrossReferences>
<CrossReference>
<Database>UNIPROT</Database>
<ID>Q8TC36</ID>
</CrossReference>
<CrossReference>
<Database>UNIPROT</Database>
<ID>A6NJ82</ID>
</CrossReference>
<CrossReference>
<Database>UNIPROT</Database>
<ID>Q5T9R0</ID>
</CrossReference>
<CrossReference>
<Database>Pfam</Database>
<ID>PF07738</ID>
</CrossReference>
<CrossReference>
<Database>PROSITE</Database>
<ID>PS51469</ID>
</CrossReference>
<CrossReference>
<Database>OMIM</Database>
<ID>613942</ID>
</CrossReference>
<CrossReference>
<Database>OMIM</Database>
<ID>617187</ID>
</CrossReference>
<CrossReference>
<Database>DisGeNET</Database>
<ID>140732</ID>
</CrossReference>
</CrossReferences>
<Function>Plays an essential role in anchoring sperm head to the tail. Is responsible for the attachment of the coupling apparatus to the sperm nuclear envelope. {ECO:0000305|PubMed:28541472, ECO:0000305|PubMed:28945193}.</Function>
<Disease>Spermatogenic failure 16 (SPGF16) [MIM:617187]: An infertility disorder caused by spermatogenesis defects and characterized by abnormally shaped spermatozoa in the semen of affected individuals. Most spermatozoa are made up of headless tails, while a small proportion has an abnormal head-tail junction. A few spermatozoa are made up of tailless heads. {ECO:0000269|PubMed:27640305, ECO:0000269|PubMed:28541472, ECO:0000269|PubMed:28945193, ECO:0000269|PubMed:29298896}. Note=The disease is caused by variants affecting the gene represented in this entry.</Disease>
<Interactions>
<Interaction>
<Partner>Q9NPE6</Partner>
<IntAct>EBI-24639374</IntAct>
<Score>0.56</Score>
</Interaction>
</Interactions>
<OntologyTerms>
<Ontology>GO:0005794</Ontology>
<Ontology>GO:0005639</Ontology>
<Ontology>GO:0034993</Ontology>
<Ontology>GO:0005635</Ontology>
<Ontology>GO:0005637</Ontology>
<Ontology>GO:0097224</Ontology>
<Ontology>GO:0043495</Ontology>
<Ontology>GO:0006998</Ontology>
<Ontology>GO:0007286</Ontology>
<Ontology>GO:0007283</Ontology>
</OntologyTerms>
<Topology>
        <Type>Transmembrane</Type>
        <Source>UniProt</Source>
        <Annotation>Sequence Analysis {ECO:0000255}</Annotation>
        </Topology>
<Sequence>MPRSSRSPGDPGALLEDVAHNPRPRRIAQRGRNTSRMAEDTSPNMNDNILLPVRNNDQALGLTQCMLGCVSWFTCFACSLRTQAQQVLFNTCRCKLLCQKLMEKTGILLLCAFGFWMFSIHLPSKMKVWQDDSINGPLQSLRLYQEKVRHHSGEIQDLRGSMNQLIAKLQEMEAMSDEQKMAQKIMKMIHGDYIEKPDFALKSIGASIDFEHTSVTYNHEKAHSYWNWIQLWNYAQPPDVILEPNVTPGNCWAFEGDRGQVTIQLAQKVYLSNLTLQHIPKTISLSGSLDTAPKDFVIYGMEGSPKEEVFLGAFQFQPENIIQMFPLQNQPARAFSAVKVKISSNWGNPGFTCLYRVRVHGSVAPPREQPHQNPYPKRD</Sequence>
        <SequenceLength>379</SequenceLength>
        </Entry>