Odorant-binding proteins of the mouse.
After the isolation of two odorant-binding proteins (OBP-I and OBP-II) from mouse nasal tissue, we have purified two additional OBPs, which bind tritiated 2-isobutyl-3-methoxypyrazine. OBP-III is a homodimer with subunits of M(r) 22,000 and pI 4.2. OBP-IV is a homodimer with subunits of M(r) 21,000 and pI 4.85. N-terminal amino acid sequences indicate that OBP-III is identical in its first 40 amino acids to the mouse urinary protein, MUP-5, (ii) OBP-IV is > 90% identical in its first 30 amino acids to the MUP-4, OBP-II is nearly 80% similar in its first 40 amino acids to OBP-I of the rat, and both subunits of OBP-I are > 50% identical with hamster aphrodisin.
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Istituto di Industrie Agrarie della Universita' degli Studi, Pisa, Italy.
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D000818:Animals; D006224:Cricetinae; D004591:Electrophoresis, Polyacrylamide Gel; D046911:Macromolecular Substances; D051379:Mice; D008970:Molecular Weight; D009831:Olfactory Mucosa / Q000737:chemistry; D011719:Pyrazines / Q000378:metabolism; D051381:Rats; D018035:Receptors, Odorant / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D017385:Sequence Homology; D014316:Tritium
D046911:Macromolecular Substances; D011719:Pyrazines; D018035:Receptors, Odorant; C045648:odorant-binding protein; D014316:Tritium; C034376:2-isobutyl-3-methoxypyrazine