Immunochemical Specificity of Lactate Dehydrogenase-X
نویسندگان
چکیده
منابع مشابه
Immunochemical specificity of lactate dehydrogenase-X.
Sperm-producing testes of mammals and some birds contain a unique form of lactate dehydrogenase (EC 1.1.1.27) which is a tetramer composed of C subunits, rather than the A and B subunits of lactate dehydrogenase isozymes 1-5. Immunochemical evidence is presented which confirms the hypothesis that the C subunit is encoded in a separate gene from the A and B polypeptides. The evolutionary relatio...
متن کاملImmunochemical properties of immunoglobulin G conjugated with lactate dehydrogenase.
Quantitative binding affinities of immunoglobulin G (IgG) for the five isoenzymes of lactate dehydrogenase (LD; EC 1.1.1.27) were determined for IgG isolated from three patients' sera that contained LD-IgG complexes. These three IgGs formed soluble complexes with four (LD 1, 2, 3, 5) of the five LD isoenzymes in two of the patients and in the third they bound with three (LD 2, 3, 4) of the five...
متن کاملSpecificity of autoantibodies to lactate dehydrogenase isoenzyme subunits.
We studied serum from 12 unrelated patients with variant electrophoretic patterns for lactate dehydrogenase (EC 1.1.1.27; LD) isoenzymes characteristic of LD-immunoglobulin complexes. Immunoglobulin class was identified in four cases. In all 12 cases, mixing the patient's serum with control serum altered the mobility of normal LD isoenzymes to that of the variant. To determine antigenic specifi...
متن کاملRelationship of lactate dehydrogenase specificity and growth rate to lactate metabolism by Selenomonas ruminantium.
A lactate-fermenting strain of Selenomonas ruminantium (HD4) and a lactatenonfermenting strain (GA192) were examined with respect to the stereoisomers of lactate formed during glucose fermentation, the stereoisomers of lactate fermented by HD4, and the characteristics of the lactate dehydrogenases of the strains. GA192 formed L-lactate and HD4 formed L-lactate and small amounts of D-lactate fro...
متن کاملUnreliability of immunochemical determination of lactate dehydrogenase isoenzyme-1 in heparinized plasma.
Paired serum and heparinized plasma samples were assayed simultaneously for lactate dehydrogenase (EC 1.1.1.27) isoenzyme 1 (LD1) activity by a commercially available immunochemical procedure. For all sera specimens tested, only LD1 activity was detected. For heparinized plasma, random discrepancies in LD1 activity were noted at normal (Group I), borderline (Group II), and increased (Group III)...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1971
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.68.2.349