The isoelectric focusing pattern of desialylated alpha 1-antichymotrypsin of heterozygous alpha 1-antichymotrypsin deficiency and of acute phase plasma. 1990

B Lindmark, and H Kamiguchi, and M Tsuda, and M Yamamura
Department of Biochemistry, Tokai University Isahara Hospital, Japan.

In an attempt to find a molecular marker for the putative abnormal allele in heterozygous alpha 1-antichymotrypsin (ACT) deficiency (a rare trait associated with early emphysema, childhood asthma and chronic "cryptogenic" liver disease) the isoelectric focusing pattern of neuraminidase treated plasma samples from subjects of ACT deficiency families as well as acute phase plasma were compared. There was no difference in the isoform pattern of plasma from ACT deficiency heterozygotes, normal subjects or patients with acute phase response. However, in acute phase plasma there was a disproportional increase in two isoforms, one of which conceivably may be used to mark the early phase of the acute phase response.

UI MeSH Term Description Entries
D007525 Isoelectric Focusing Electrophoresis in which a pH gradient is established in a gel medium and proteins migrate until they reach the site (or focus) at which the pH is equal to their isoelectric point. Electrofocusing,Focusing, Isoelectric
D007536 Isomerism The phenomenon whereby certain chemical compounds have structures that are different although the compounds possess the same elemental composition. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Isomerisms
D006579 Heterozygote An individual having different alleles at one or more loci regarding a specific character. Carriers, Genetic,Genetic Carriers,Carrier, Genetic,Genetic Carrier,Heterozygotes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000210 Acute-Phase Reaction An early local inflammatory reaction to insult or injury that consists of fever, an increase in inflammatory humoral factors, and an increased synthesis by hepatocytes of a number of proteins or glycoproteins usually found in the plasma. Acute Phase Response,Acute-Phase State,Reaction, Acute-Phase,Response, Acute-Phase,Acute Phase Reaction,Acute Phase Responses,Acute Phase State,Acute-Phase Response,Phase Response, Acute,Reaction, Acute Phase,Response, Acute Phase,State, Acute-Phase
D000514 alpha 1-Antichymotrypsin Glycoprotein found in alpha(1)-globulin region in human serum. It inhibits chymotrypsin-like proteinases in vivo and has cytotoxic killer-cell activity in vitro. The protein also has a role as an acute-phase protein and is active in the control of immunologic and inflammatory processes, and as a tumor marker. It is a member of the serpin superfamily. Serpin A3,alpha(1)-Antichymotrypsin,alpha 1 Antichymotrypsin

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