scholarly journals Protein profile of the seminal plasma of collared peccaries (Pecari tajacu Linnaeus, 1758)

Reproduction ◽  
2014 ◽  
Vol 147 (6) ◽  
pp. 753-764 ◽  
Author(s):  
E A A Santos ◽  
P C Sousa ◽  
J A M Martins ◽  
R A Moreira ◽  
A C O Monteiro-Moreira ◽  
...  

This study was conducted to characterize the major proteins of the peccary seminal plasma, based on the semen samples collected from nine adult and reproductively sound animals. Our approach included the use of two-dimensional electrophoresis followed by Coomassie blue staining and analysis of polypeptide maps with PDQuest Software (Bio-Rad). Proteins were identified by tandem mass spectrometry (LC–MS/MS). We detected 179 protein spots per gel and 98 spots were identified by mass spectrometry, corresponding to 23 different proteins. The combined intensity of those spots accounted for 56.2±6% of the intensities of all spots and 60.9% of the intensities of spots presented in every protein map. Protein spots identified as clusterin represented 19.7±8.3% of the integrated optical densities of all spots detected in the seminal plasma maps. There was a negative association (r=−0.87;P<0.05) between the intensity of a clusterin spot and the percentage of sperm with functional membrane. Spermadhesin porcine seminal plasma protein 1 and bodhesin 2 comprised 5.4±1.9 and 8.8±3.9% of the total intensity of all spots respectively. Many proteins appeared in a polymorphic pattern, such as clusterin (27 spots), epididymal secretory glutathione peroxidase (ten spots), inter-α-trypsin inhibitor (12 spots), and IgG-binding protein (ten spots), among others. In conclusion, we presently describe the major seminal plasma proteome of the peccary, which exhibits a distinct high expression of clusterin isoforms. Knowledge of wild species reproductive biology is crucial for an understanding of their survival strategies and adaptation in a changing environment.

1992 ◽  
Vol 4 (2) ◽  
pp. 249 ◽  
Author(s):  
A Paliwal ◽  
B Malaviya ◽  
VP Kamboj

Oviducts were obtained from monkeys on Days 8, 14, 19 and 25 of the menstrual cycle and changes in the pattern of luminal fluid proteins were examined by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Densitometric analysis after periodic acid Schiff's reagent (PAS) and coomassie blue staining of the gels revealed 85 and 95 kDa proteins only up to Day 14 whereas a 130 kDa glycoprotein persisted up to Day 19 and reached a nadir at mid-menstrual cycle (Day 14). The absence of the 130 kDa glycoprotein in the serum and its presence in cytosolic preparations up to Day 19 suggest that it is of oviductal origin. The 130 kDa glycoprotein is of particular interest since it was present in the oviductal fluid during mid cycle, a period when the oviduct participates in gamete transport, fertilization and embryo development. The conclusion drawn from this study is that the protein profile of monkey oviductal fluid changes during the menstrual cycle.


2018 ◽  
Vol 18 (4) ◽  
pp. 526
Author(s):  
Fitrine Ekawasti ◽  
Ichwan Yuniarto ◽  
Sulinawati Sulinawati ◽  
Didik Tulus Subekti

Surra outbreak in 2012 has led to more than 1,700 animals have died in the province of East Nusa Tenggara (NTT) Indonesia. Surra case sporadically continues throughout the year in various areas, especially Kalimantan, Banten as well as other areas. Some reports reveal differences in protein profiles among multiple isolates of T. evansi. Therefore the purpose of this research were to find out the protein profile of each isolate T. evansi in Indonesia and the possible biological differences among them. Eleven isolates originating from the province of East Nusa Tenggara, South Kalimantan and Central Kalimantan, Banten, Lampung and Bengkulu has been isolated and purified Using DEAE. Trypanosoma isolate were frezeethawing repeatedly to obtain soluble protein. Furthermore, soluble protein is treated with heating or without heating and then each was run on SDS PAGE with Coomassie Blue staining. The protein profiles of all isolates were compared each other. The results showed that eleven isolates of T. evansi in Indonesia has a very diverse protein profile. Then for the purposes of development of diagnostic kit can be used whole lysate cell (WCL) as stock antigen in serological test process.


1983 ◽  
Vol 61 (7) ◽  
pp. 756-763 ◽  
Author(s):  
Jean Y. Dubé ◽  
Pierre Chapdelaine ◽  
Roland R. Tremblay

We have submitted adult mongrel dogs to various endocrine manipulations. Prostate slices from these animals were then incubated in vitro in the presence of [3H]leucine or [35S]methionine. We have analyzed the cytosolic proteins by polyacrylamide gel electrophoresis. In intact adult uncastrated dogs, the radioactive amino acids were incorporated into three major bands having respective molecular weights (MW) of 32 000,16 000, and 15 000 in one-dimensional gels in presence of sodium dodecyl sulfate and mercaptoethanol. Two-dimensional electrophoresis revealed heterogeneity of each of these bands, both in isoelectric focussing (IEF) or nonequilibrium pH gel electrophoresis (NEpHGE) conditions. The 32 000 MW proteins showed five to six major radioactive spots and the 15 000 – 16 000 MW proteins showed six to seven spots by IEF. However, the highest incorporation of radioactivity occurred in a 16 000 MW protein seen only in NEpHGE. The lower MW proteins corresponded to some of the major proteins of dog seminal plasma as observed by immunoprecipitation of prostate proteins with antibodies against whole seminal plasma. By contrast, the 32 000 MW proteins were minor proteins of prostate cytosol and seminal plasma by Coomassie blue staining. Castration for 2 weeks completely abolished the synthesis of all these proteins. When castrated animals were treated with 5α-androstane-3α-17β-diol (10 mg/day for 2 weeks), the pattern of protein synthesis returned to the one observed in intact uncastrated animals. These observations show that testicular androgens control the synthesis of dog prostate major secretory proteins.


2013 ◽  
Vol 90 ◽  
pp. 96-106 ◽  
Author(s):  
Victoria J. Gauci ◽  
Matthew P. Padula ◽  
Jens R. Coorssen

BioTechniques ◽  
2000 ◽  
Vol 28 (3) ◽  
pp. 426-432 ◽  
Author(s):  
Connie Wong ◽  
Srinavas Sridhara ◽  
James C.A. Bardwell ◽  
Ursula Jakob

1977 ◽  
Vol 55 (9) ◽  
pp. 988-994 ◽  
Author(s):  
A. McGeer ◽  
B. Lavers ◽  
G. R. Williams

Beef heart cytochrome oxidase (EC 1.9.3.1) prepared in this laboratory consistently presents 10 Coomassie blue staining zones on SDS–polyacrylamide gel electrophoresis. At pH 7.0 only two of these polypeptides (III and VIa) are labelled by radioactive N-ethyl maleimide (NEM). The labelling of VIa is variable and correlates with the activity of particular oxidase preparations. When cytochrome oxidase is isolated from alkylated membranes, either mitochondria or electron transport particles, polypeptide VIa is found not to be labelled; polypeptide III is more strongly labelled than when isolated oxidase is alkylated, and label now appears in polypeptide I which is not alkylated upon treatment of isolated oxidase with NEM.


1987 ◽  
Author(s):  
Deborah A Rathjen ◽  
Carolyn L Geczy

To study the role of anticoagulants, particularly antithrombin III (AT III) and heparin, on the activation of coagulation by monocytes/macrophages which have been stimulated with a soluble lymphocyte activation product, macrophage procoagulant inducing factor, we have prepared monoclonal antibodies (MAbs) to human AT III.In fusion experiments, in contrast to wells containing peritoneal feeder cells, positive hybrids were only found in wells containing medium conditioned by the macrophage cell line J774 (Rathjen and Geczy, 1986). Of 5 hybrids which initially produced antibody, only one hybrid, showed stable Ab production. The MAb, designated 22/23, was not cross-reactive with either 1 antitrypsin or ovalbumin and did not inhibit the biological activity of AT III in chromogenic assays which measured inhibition of thrombin and Factor Xa by AT III. An immunoadsorbent prepared using MAb 22/23 depleted AT III activity from a purified AT III preparation. Reduction and alkylat ion of the disulphide bonds of the protein portion of AT III completely abbrogated MAb binding indicating that the native configuration of AT III was important. Isoelectric focussing of AT III, followed by transfer of the focussed protein to nitrocellulose by diffusion and probing with MAb 22/23, revealed at least 8 bands in the region of pH 5.2 to 5.85. Coomassie blue staining of a gel run in parallel showed 9 bands in this region. The MAb provides a useful tool for the detection of AT III on both cultured cells (bovine aortic endothelial cells are positive by immunofluorescence) and tissue sections.Rathjen, D.A. and Geczy, C.L. Hybridomo. 5s 255-261 (1986)


Blood ◽  
1984 ◽  
Vol 64 (6) ◽  
pp. 1212-1219 ◽  
Author(s):  
N Kieffer ◽  
B Boizard ◽  
D Didry ◽  
JL Wautier ◽  
AT Nurden

Abstract We report the immunochemical characterization of a new platelet- specific alloantigen detected using an IgG antibody isolated from the serum of a patient with posttransfusion purpura (PTP). In indirect immunoprecipitation experiments, the antibody, termed anti-Leka, predominantly precipitated glycoprotein (GP) IIb from Triton X-100 lysates of normal human platelets. In an immunoblot procedure, which involved the transfer of platelet polypeptides separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis to nitrocellulose membrane, anti-Leka bound exclusively to GP IIb. Under identical conditions, four anti-PlA1 antibodies each reacted with GP IIIa. No binding of anti-Leka IgG occurred to Leka (-) platelets or to their separated polypeptides although GP IIb was normally detected by Coomassie blue staining. After electrophoresis of reduced platelet proteins, the Leka determinant was localized to the IIb alpha chain. Thus, unlike the PlA1 antigen, the Leka determinant was not destroyed by disulfide reduction. Analysis of platelets from a patient with Glanzmann's thrombasthenia revealed little or no binding in the GP IIb position. Anti-Leka permitted the identification of 76,000 and 60,000 dalton fragments of GP IIb retained by the platelet following chymotrypsin treatment. Our results further highlight the immunogenicity of the GP IIb-IIIa complex. They also suggest that antibodies against GP IIb can cause the thrombocytopenia observed in PTP and that anti-PlA1 antibodies do not account exclusively for the pathophysiology of this immune disorder.


1983 ◽  
Vol 31 (6) ◽  
pp. 709-716 ◽  
Author(s):  
M R Green

Proteins in colostrum and skimmed milk from humans and mice were separated by electrophoresis on polyacrylamide gels and stained with Coomassie blue (CB), Ethyl-Stains-all (ESA), and periodic acid-Schiff (PAS) to investigate changes that may occur in milks throughout lactation. In mouse colostrum but not in mature mouse milk, a PAS-positive protein of apparent molecular weight of 60,000 stained prominently blue with ESA. A protein in human milk with a molecular weight of 68,000 stained similarly but was present throughout lactation. The intensity of blue staining of these minor proteins in milk approached that obtained with casein phosphoproteins. The metachromatic dye ESA stains phosphoproteins and sialic acid-rich glycoproteins blue to blue-green. Removal of phosphorus from the former and sialic acid from the latter results in those proteins staining red with ESA. The intensity of blue staining of the 60,000 and 68,000 Mr proteins was diminished but not lost following treatment with phosphatase. It was eliminated following neuraminidase digestion of the mouse protein and mild acid hydrolysis of the human protein. Coomassie blue staining of the proteins was not affected by these procedures. Following electrophoresis of milk and milk fractions in a non-sodium dodecyl sulfate-containing system, the proteins were identified by their characteristic staining properties with ESA and isolated.


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