>5u6g_B mol:protein length:133 Retinol-binding protein 2TRDQNGTWEMESNENFEGYMKALDIDFATRKIAVRLTQTDVIDQDGDNFKTKTTSTFRNYDVDFTVGVEFDEYTKSLDNRHVKALVTWEGDVLVCVQKGEKENRGWKKWIEGDKLYLELTCGDQVCRQVFKKK