Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:1.16.3.1 (ceruloplasmin)
 5,074 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A galactose-specific lectin isolated from Ricinus communis beans has been covalently coupled to Sepharose 4B activated with cyanogen bromide. The immobilized lectin retains its polysaccharide-binding property. The Sepharose-lectin can be used for the purification of polysaccharides containing terminal nonreducing galactose. Only a small fraction of 'native fetuin' and 'native ceruloplasmin' are retarded on Sepharose-lectin. On analysis it was observed that they had a lower content of sialic acids as compared to the native and unbound glycoproteins (sialated fractions). However, on desialation, fetuin and ceruloplasmin were completely adsorbed to Sepharose-lectin. The asialoglycoproteins interact strongly with Sepharose-lectin as compared to 'partially sialated glycoproteins'. This has been attributed to the exposure of galactose residues of these glycoproteins on enzymatic desialation. These experiments demonstrated that Sepharose-lectin interacts with glycoproteins through their terminal, non-reducing galactose. On the basis of these experiments it is suggested that Sepharose-lectin can be used as an analytical tool for separation of 'fully sialated glycoproteins' from the 'partially sialated glycoproteins'.
Biochim Biophys Acta 1975 Sep 08
PMID:Affinity chromatography of galactose containing biopolymers using covalently coupled Ricinus communis lectin to Sepharose 4B. 5 50

In 9 groups of liver diseases, 11 serum protein parameters were studied. Prealbumin, retinol-binding protein, albumin, alpha-lipoprotein and Normotest (NT) were usually highly intercorrelated and separated best among groups with different types of functional impairment. Haptoglobin, C3 and total iron-binding capacity were probably also sometimes reduced by restricted protein synthesis but appeared to be more easily affected by other factors, alpha1-antitrypsin was often increased in different liver diseases, but a pattern compatible with the "acute-phase reaction" was regularly present only in hepatic tumors. Bile retention was often accompanied by relatively high levels of ceruloplasmin, C3, and alpha-lipoprotein and by high NT values.
Scand J Clin Lab Invest 1975 Sep
PMID:Serum proteins in diseases of the liver. 5 85

A new case of analbuminemia is described for a six month old child of Algerian origin. The serum albumin concentration was 64 mg/l and its immunochemical action was identical to that of normal albumin. The system reacted by an increase of the synthesis of globulins. For the subject, the alpha1-antitrypsin, ceruloplasmin, haptoglobin, alpha2-macroglobulin, transferrin and immunoglobulins M contents were three times higher than the standard figures. However, it was possible to show that the presence of free bilirubin independent from proteins could be detected at a concentration of 17 mumol/l.
Clin Chim Acta 1976 Sep 06
PMID:[Biochemical modifications in a case of analbuminemia (author's transl)]. 6 Oct 76

The correlations between the levels of various plasma proteins and lipids and platelet function on glass and platelet factor 3 (PF 3)-availability in children of different age-groups were investigated. Several statistically significant positive and some significant negative correlations were found. Although conclusions based solely on such correlations should be considered with reservation, in our opinion the following factors should stimulate platelet function: prealbumin (adhesion and PF 3-availability in all age-groups, aggregation--specifically for children in puberty); alpha 1-antitrypsin (PF 3-availability); alpha 2-macroglobulin (platelet spreading capacity, PF 3-availability); plasminogen (platelet adhesion and aggregation--specifically for boys in puberty); caeruloplasmin (number of "free adhering platelets" spreading capacity); lysolecithin and lecithin (time-dependent increase of spontaneous platelet adhesion and aggregation, PF 3-availability); and free fatty acids (FFA) (PF 3-availability). Plasminogen and complement component C'3 show a negative relationship to the time-dependent increase of spontaneous platelet adhesiveness and aggregability in platelet-rich plasma.
Eur J Pediatr 1979 Sep
PMID:Correlations between age-dependent protein and lipid concentrations in plasma and platelet functions in children. 9 14

Electron spin-echo decay envelopes for types I and II copper of Rhus vernicifera laccase and for type II copper of procine ceruloplasmin have been studied. Nuclear modulation patterns show that imidazole is a ligand for all of them. The linear electric field effect (LEFE) in EPR was studied for type I copper in a laccase preparation from which type II had been removed. The symmetry of the site is near tetrahedral and the magnitude of the LEFE is correlated with the intensity of blue color.
Biochemistry 1977 Sep 20
PMID:Pulsed electron paramagnetic resonance studies of types I and II coper of Rhus vernicifera laccase and porcine ceruloplasmin. 19 89

Electron spin resonance studies have been made of caeruloplasmin and iron transferrin levels in whole blood of healthy controls and patients with a variety of malignant conditions receiving various forms of treatment. A small difference was found in caeruloplasmin level between normal males and females, although normal females receiving contraceptive steroids had an elevated level. No difference was found in iron transferrin level. Various conditions increased the caeruloplasmin and some also decreased the iron transferrin level in patients with malignant disease. These included surgery and the approach of a terminal phase of disease. Once allowance for these factors was made, the remaining small differences in Cu and Fe between patients with either squamous cell carcinoma or breast cancer and controls appeared to have no clinical significance.
Br J Cancer 1977 Sep
PMID:Electron spin resonance of caeruloplasmin and iron transferrin in blood of patients with various malignant diseases. 20 Feb 54

The electron paramagnetic resonance (EPR) spectra of the blue copper oxidase ceruloplasmin [ferroxidase, iron (II):oxygen oxidoreductase, EC 1.16.3.1] and of a derivative having the type I (blue) copper centers reversibly bleached are reported. The EPR spectrum of bleached ceruloplasmin has a seven-line superhyperfine structure in the g : formula: (see text) region that is attributed to the presence of three nitrogen-donor type 2 copper ligands. The EPR data suggest further that the type 2 copper in ceruloplasmin possesses a tetragonal coordination gometry. In the presence of varying amounts of fluoride, superhyperfine splitting patterns in the g : formula: (see text) region of both ceruloplasmin derivatives indicate that a maximum of two fluorides may be bound to the type 2 copper.
Proc Natl Acad Sci U S A 1978 Sep
PMID:Coordination environment and fluoride binding of type 2 copper in the blue copper oxidase ceruloplasmin. 21 31

2 studies, A and B, were conducted to determine the metabolic effects of oral contraceptives (OCs). The subjects were healthy nonsmokers (17 to 27 years old, 1.52 m. to 1.75 m. in height, and 50 kg. to 60 kg. in weight) who were not undergoing any therapy. Controls did not have any previous history of hormonal therapy. In Study A, biochemical data from 17 women who were not on OCs were compared with those of women taking pills containing either 30 ug of ethinyl estradiol (EE) and 150 ug of D. norgestrel (18 women) or 50 ug. of EE and 250 ug. of D. norgestrel (9 women). In Study B, 8 women were studied before and during 3 to 4 cycles of low-dosed OC therapy (30 ug. of EE and 150 ug. of D. norgestrel). In both studies, the 2 oral contraceptive dosage forms had similar metabolic quantitative and qualitative changes: both resulted in an increase in serum concentration of triglycerides (30 to 33%), B-lipoproteins (27 to 29%), and ceruloplasmin (75 to 90%), and a decrease in serum levels of antithrombin 3 (22 to 29%) and ascorbic acid (30 to 42%). Serum cholesterol and phospholipid concentration did not change. The proportion of serum cholesterol carried by a-lipoproteins (high density lipoproteins) did decrease (the change is much smaller than that seen in coronary heart disease) while that carried by B-lipoproteins (or low density and very low density lipoproteins) increased. A significant negative correlation was observed between serum concentrations of ascorbic acid and cholesterol; this is interesting as clinical and experimental evidence suggests that latent ascorbic acid deficiency leads to hypercholesteroleamia, while ascorbic acid supplements reduce plasma cholesterol levels. As 500 mg. daily of ascorbic acid supplements supposedly help maintain normal ascorbic acid levels in blood during OC use, they should perhaps be prescribed to pill users in this study.
Med J Aust 1979 Sep 22
PMID:Metabolic effects of oral contraceptives containing 30 micrograms and 50 micrograms of oestrogen. 23 Apr 11

The administration of tetraethylthiuramdisulfide (disulfiram, Antabus--inhibitor of dopamine-beta-hydroxylase) resulted in an inhibition of the response of anterior pituitary to estradiol (i. e. increase of weight and of binding capacity of anterior pituitary proteins to thyroxine). At the same time there was no inhibition of an increase of ceruloplasmin (polyphenoloxidase) level after estradiol, while a decrease of ascorbic acid in hypothalamus was fully prevented. It was concluded that disulfiram may inhibit dopamine-beta-hydroxylase activity and thus presumably protect the hypothalamic dopamine which further inhibits the response of anterior pituitary to estradiol either directly or through a dopamine dependent growth inhibiting factor.
Endocrinol Exp 1979 Sep
PMID:Effect of dopamine-beta-hydroxylase inhibitor (disulfiram) on the response of adenohypophysis, serum ceruloplasmin and hypothalamic ascorbic acid to estradiol treatment. 31 64

Serum haemopexin and C3 concentrations fell and serum caeruloplasmin rose in 14 epileptic children studied prospectively during treatment with diphenylhydantoin. There was a positive correlation between the changes in haemopexin concentration and those of C3.
Clin Chim Acta 1977 Sep 15
PMID:Haemopexin, caeruloplasmin and C3: effect of diphenylhydantion. 40 60


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