PMID- 2172938 OWN - NLM STAT- MEDLINE DCOM- 19901212 LR - 20190818 IS - 0196-9781 (Print) IS - 0196-9781 (Linking) VI - 11 IP - 4 DP - 1990 Jul-Aug TI - Synthesis and biological activity of a biotinylated vasopressin analog. PG - 687-91 AB - To study vasopressin receptor-mediated endocytosis using electronmicroscopy methods and to develop avidin affinity columns for receptor purification, we synthesized and tested the biological properties of a biotinylated vasopressin (VP) analog [1-(2-mercapto) propionic acid] 8-[lysine-N6-biotin] VP (B-MLVP). B-MLVP was prepared by coupling biotin to the epsilon amine of the lysine residue in [1-(2-mercapto) propionic acid] 8-(lysine) VP (MLVP). The structure of HPLC purified B-MLVP was confirmed by fast atom bombardment mass spectrometry. B-MLVP effectively competed for arginine vasopressin (AVP) binding sites in canine renal plasma membranes on the surface of LLC-PK1 kidney cells. Dissociation constants of 15 nM and 202 nM were calculated from the results of competition binding assays conducted with membranes and cells, respectively. B-MLVP stimulated adenylate cyclase activity and elevated cellular 3',5',cyclic-AMP (cAMP) content in a manner similar to AVP, indicating it is an agonist of VP action in renal tissue. These observations indicate that B-MLVP is an agonist of VP action and may be used to study renal VP receptors by employing avidin coupled to various reporter groups. FAU - Lutz, W H AU - Lutz WH AD - Department of Medicine, Mayo Clinic and Foundation, Rochester, MN 55905. FAU - Londowski, J M AU - Londowski JM FAU - Kumar, R AU - Kumar R LA - eng GR - R01 DK025409/DK/NIDDK NIH HHS/United States GR - DK-07013/DK/NIDDK NIH HHS/United States GR - DK-25409/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Peptides JT - Peptides JID - 8008690 RN - 0 (Receptors, Angiotensin) RN - 0 (Receptors, Vasopressin) RN - 130154-83-5 (vasopressin, ((2-mercapto)propionic acid)(1)-(Lys-N(6)-biotin)(8)-) RN - 50-57-7 (Lypressin) RN - 6SO6U10H04 (Biotin) RN - E0399OZS9N (Cyclic AMP) RN - EC 4.6.1.1 (Adenylyl Cyclases) SB - IM MH - Adenylyl Cyclases/metabolism MH - *Amino Acid Sequence MH - Animals MH - Binding, Competitive/physiology MH - Biotin/*analogs & derivatives/chemical synthesis/metabolism/pharmacology MH - Cells, Cultured MH - Cyclic AMP/metabolism MH - Dogs MH - In Vitro Techniques MH - Kidney Medulla/metabolism MH - Lypressin/*analogs & derivatives/chemical synthesis/metabolism/pharmacology MH - Microscopy, Fluorescence MH - Molecular Sequence Data MH - Molecular Structure MH - Receptors, Angiotensin/metabolism MH - Receptors, Vasopressin EDAT- 1990/07/01 00:00 MHDA- 1990/07/01 00:01 CRDT- 1990/07/01 00:00 PHST- 1990/07/01 00:00 [pubmed] PHST- 1990/07/01 00:01 [medline] PHST- 1990/07/01 00:00 [entrez] AID - 0196-9781(90)90181-4 [pii] AID - 10.1016/0196-9781(90)90181-4 [doi] PST - ppublish SO - Peptides. 1990 Jul-Aug;11(4):687-91. doi: 10.1016/0196-9781(90)90181-4.