PMID- 10580106 OWN - NLM STAT- MEDLINE DCOM- 20000113 LR - 20190621 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 462 IP - 1-2 DP - 1999 Nov 26 TI - Human napsin A: expression, immunochemical detection, and tissue localization. PG - 135-9 AB - A novel aspartic proteinase, called napsin, has recently been found in human and mouse. Due to high similarity with cathepsin D a structural model of human napsin A could be built. Based on this model a potential epitope SFYLNRDPEEPDGGE has been identified, which was used to immunize rabbits. The resulting antibody was employed in monitoring the expression of recombinant human napsin A in HEK293 cell line. Western blot analysis confirmed the specificity of the antibody and showed that human napsin A is expressed as a single chain protein with the molecular weight of approximately 38 kDa. Immunohistochemical studies revealed high expression levels of napsin A in human kidney and lung but low expression in spleen. FAU - Schauer-Vukasinovic, V AU - Schauer-Vukasinovic V AD - F. Hoffmann-La Roche Ltd., Pharma Division, Preclinical Research, Grenzacherstrasse 124, CH-4070, Basel, Switzerland. FAU - Bur, D AU - Bur D FAU - Kling, D AU - Kling D FAU - Gruninger, F AU - Gruninger F FAU - Giller, T AU - Giller T LA - eng PT - Journal Article PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (Antibodies) RN - 0 (Epitopes) RN - EC 3.4.23.- (Aspartic Acid Endopeptidases) RN - EC 3.4.23.- (NAPSA protein, human) SB - IM MH - Amino Acid Sequence MH - Antibodies/immunology MH - Aspartic Acid Endopeptidases/*analysis/immunology/metabolism MH - Blotting, Western MH - Cells, Cultured MH - Epitopes MH - Humans MH - Immunohistochemistry MH - Kidney/enzymology MH - Lung/enzymology MH - Molecular Sequence Data MH - Sequence Homology, Amino Acid MH - Tissue Distribution EDAT- 1999/12/02 00:00 MHDA- 1999/12/02 00:01 CRDT- 1999/12/02 00:00 PHST- 1999/12/02 00:00 [pubmed] PHST- 1999/12/02 00:01 [medline] PHST- 1999/12/02 00:00 [entrez] AID - S0014-5793(99)01458-1 [pii] AID - 10.1016/s0014-5793(99)01458-1 [doi] PST - ppublish SO - FEBS Lett. 1999 Nov 26;462(1-2):135-9. doi: 10.1016/s0014-5793(99)01458-1.