Abstract: This invention relates to a process for the separation of dicarboxylic acids from aqueous mixtures of CV8C24 mono- and dicarboxylic acids. In particular this invention relates to a process for the separation and purification of the said mixtures which uses an ultrafiltration stage.

Abstract: This invention relates to a process for the separation of dicarboxylic acids from aqueous mixtures of CV8C24 mono- and dicarboxylic acids. In particular this invention relates to a process for the separation and purification of the said mixtures which uses an ultrafiltration stage.

Abstract: A peptide of formula (I) (H2N—X1—Thr—X2—CO)n—R  (I) where X1 and X2, different one another, are an amino acid residue of arginine or tyrosine in configuration L or D, wherein the hydroxy group of threonine and tyrosine and the guanidine moiety of arginine may be protected by a compound conventionally used in peptide chemistry for protecting the hydroxy group and the guanidine moiety, respectively, n is 1,2, 3 or 4, and R, when n is 2,3 or 4, is a group suitable for forming a dimer, trimer or tetramer, while, when n is 1, R is OH, a single amino acid residue, or a peptide chain contains up to 7 amino acid residues.

Abstract: Disclosed herein are uses of a recombinant protein as a receptor for a hepatitis virus. Also disclosed are a nucleic acid coding for the receptor, a vector comprising a nucleic acid encoding the receptor, a host cell transformed or transfected with the nucleic acid, and a new recombinant protein having the biological property to act as a receptor for a hepatitis virus and a transgenic animal expressing the recombinant protein.

Abstract: An improved antigenic peptide where the amino acid sequence is modified by replacing one or more amino acids with glycine.

Abstract: A peptide of formula (I) (H2N—X1—Thr—X2—CO)n—R  (I) where X1 and X2, different one another, are an amino acid residue of arginine or tyrosine in configuration L or D, wherein the hydroxy group of threonine and tyrosine and the guanidine moiety of arginine may be protected by a compound conventionally used in peptide chemistry for protecting the hydroxy group and the guanidine moiety, respectively, n is 1,2, 3 or 4, and R, when n is 2,3 or 4, is a group suitable for forming a dimer, trimer or tetramer, while, when n is 1, R is OH, a single amino acid residue, or a peptide chain containing up to 7 amino acid residues.

Abstract: An improved antigenic peptide where the amino acid sequence is modified by replacing one or more amino acids with glycine.

Abstract: A peptide of formula (I)(H.sub.2 N--X.sub.1 --Thr--X.sub.2 --CO).sub.n --R (I)whereX.sub.1 and X.sub.2, different one another, are an amino acid residue of arginine or tyrosine in configuration L or D, wherein the hydroxy group of threonine and tyrosine and the guanidine moiety of arginine may be protected by a compound conventionally used in peptide chemistry for protecting the hydroxy group and the guanidine moiety, respectively, n is 1, 2, 3 or 4, andR, when n is 2, 3 or 4, is a group suitable for forming a dimer, trimer or tetramer, while, when n is 1, R is OH, a single amino acid residue, or a peptide chain containing up to 7 amino acid residues.