Q9DA32 SUN Sun5 10090 None SL-0178 SL-0179 SL-0182 Nucleus inner membrane {ECO:0000269|PubMed:21159740, ECO:0000269|PubMed:25775128, ECO:0000269|PubMed:28945193, ECO:0000269|PubMed:29298896}; Single-pass membrane protein {ECO:0000269|PubMed:21159740}. Golgi apparatus {ECO:0000269|PubMed:25775128}. 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:0000269|PubMed:21159740, ECO:0000269|PubMed:25775128, ECO:0000269|PubMed:28945193}. UNIPROT Q9DA32 UNIPROT D2DR64 UNIPROT Q5DT38 Pfam PF07738 PROSITE PS51469 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:0000269|PubMed:28945193, ECO:0000305|PubMed:21711156}. GO:0005794 GO:0005639 GO:0034993 GO:0005635 GO:0005637 GO:0097224 GO:0043495 GO:0006998 GO:0007286 GO:0007283 Transmembrane UniProt Sequence Analysis {ECO:0000255} MPRTRNIGALCTLPEDTTHSGRPRRGVQRSYISRMAEPAPANMNDPLLLPLRMNTPGLSLVQILLGYMSWLTYLACFLRTQTQQVFLNTCRCKLFCQKVMEKMGLLVLCVFGFWMFSMHLPSKVEVWQDDSINGPLQSLRMYQEKVRHHTGEIQDLRGSMNQLIAKLQKMEAISDEQKMAQKIMKMIQGDYIEKPDFALKSIGASIDFEHTSATYNHDKARSYWNWIRLWNYAQPPDVILEPNVTPGNCWAFASDRGQVTIRLAQKVYLSNITLQHIPKTISLSGSPDTAPKDIVIYGLESLPREEVFLGAFQFQPENVIQMFQLQNLPPRSFAAVKVKISSNWGNPRFTCMYRVRVHGSVTPPKDSHLEPLS 373