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Immunogen sequence: PDLGILFELG ISYIRNSTGE RGELSCGWVF LKLFDASGVP IPAKTYELFL NGGTPYEKGI EVDPSISRRA HGSVFYQIMT MRRQPQLLVK LRSLNRRSRN VLSLLPETLI GNMCSIHLLI FYRQILGDVL LKDRMSLQST DLISHPMLAT FPMLLEQPDV MDALRSSWAG KESTLKRSEK RDKEFLKSTF LLVYHDCVLP LLHSTRLPPF RWAEEETETA RWKVITDFLK QNQENQGALQ ALLSPDGVHE PFDLSEQTYD FLGEMRKNAV; Positive Samples: Mouse lung, Rat brain; Cellular Location: Cell junction, Cell projection, Cytoplasm, adherens junction, cilium, cilium axoneme, cytoskeleton, tight junction
Juvenile nephronophthisis type 1 is caused by mutations of NPHP1, the gene encoding for nephrocystin. Nephrocystin interacts with p130Cas (BCAR1), proline-rich tyrosine kinase-2 (PTK2B or Pyk2), and tensin in embryonic kidney and testis, indicating that these proteins participate in a common signaling pathway. Nephrocystin and p130Cas interact in mammalian cells and both proteins prominently localize at or near sites of cell-cell contact in polarized Madin-Darby canine kidney epithelial cells. Expression of nephrocystin results in phosphorylation of Pyk2 on Tyrosine 402 as well as activation of downstream mitogen-activated protein kinases, such as ERK1 and ERK2. Nephrocystin contains a src-homology 3 (SH3) domain, which is highly conserved throughout evolution.
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Protein Aliases: Juvenile nephronophthisis 1 protein; nephrocystin 1; Nephrocystin-1; Nephrocystin1; nephronophthisis 1 (juvenile); nephronophthisis 1 (juvenile) homolog
Gene Aliases: JBTS4; NPH1; NPHP1; SLSN1
UniProt ID: (Human) O15259, (Mouse) Q9QY53
Entrez Gene ID: (Human) 4867, (Rat) 296136, (Mouse) 53885
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