scholarly journals Full-Length Minor Ampullate Spidroin Gene Sequence

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e52293 ◽  
Author(s):  
Gefei Chen ◽  
Xiangqin Liu ◽  
Yunlong Zhang ◽  
Senzhu Lin ◽  
Zijiang Yang ◽  
...  
Keyword(s):  
Gene Sequence ◽  
Full Length

scholarly journals Ruegeria pelagia is a later heterotypic synonym of Ruegeria mobilis

2010 ◽  
Vol 60 (8) ◽  
pp. 1918-1920 ◽  
Author(s):  
Qiliang Lai ◽  
Jun Yuan ◽  
Fuying Li ◽  
Tianling Zheng ◽  
Zongze Shao
Keyword(s):  
16S Rrna ◽  
Antibiotic Susceptibility ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Full Length ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Galactosidase Activity ◽  
Dna Relatedness ◽  
Susceptibility Tests

The 16S rRNA genes of Ruegeria pelagia NBRC 102038T and Ruegeria mobilis NBRC 101030T were resequenced and the results confirmed that they differ by only one base in their almost full-length sequences (1425 nt). The gyrB gene sequence similarity between the two strains was also high (97.7 %). The outcome of API 20NE, API ZYM and antibiotic susceptibility tests showed that the two strains show only one difference, in β-galactosidase activity, in API tests and five differences in susceptibility among 30 tested antibiotics. In addition, similar BOX-PCR fingerprints were obtained and the DNA–DNA relatedness between the two strains was 91±4 %. On the basis of these results, it is concluded that Ruegeria pelagia Lee et al. 2007 is a later heterotypic synonym of Ruegeria mobilis Muramatsu et al. 2007.

scholarly journals Role of Signal Sequence in Vaccine-Induced Protection against Experimental Coccidioidomycosis

2002 ◽  
Vol 70 (7) ◽  
pp. 3539-3545 ◽  
Author(s):  
Chengyong Jiang ◽  
D. Mitchell Magee ◽  
F. Douglas Ivey ◽  
Rebecca A. Cox
Keyword(s):  
Signal Peptide ◽  
Synthetic Peptide ◽  
Gene Sequence ◽  
Signal Sequence ◽  
Lethal Dose ◽  
Full Length ◽  
Peptide Sequence ◽  
Coccidioides Immitis ◽  
Signal Peptide Sequence ◽  
Gene Vaccine

ABSTRACT The vaccine efficacy of the gene sequence encoding the signal peptide of the antigen known as antigen 2 or proline-rich antigen (Ag2/PRA), an immunodominant antigen present in the cell wall of the fungal pathogen Coccidioides immitis, was investigated in a murine model of coccidioidomycosis. Expression plasmids for Ag2/PRA(1-18) DNA (signal sequence), Ag2/PRA(19-194) DNA (lacking the signal sequence), and Ag2/PRA(1-194) DNA (full length) were inserted in the pVR1012 vector, and the constructs were used to vaccinate the highly susceptible BALB/c mouse strain. Immunization with the signal gene sequence significantly reduced the fungal burden in the lungs and spleens of mice 12 days after intraperitoneal challenge with a lethal dose of 2,500 C. immitis arthroconidia, to a level comparable to the protection induced in mice immunized with the full-length Ag2/PRA(1-194) DNA. The Ag2/PRA(19-194) gene protected mice but to a significantly lower level than the signal sequence or the full-length Ag2 gene. The immunizing capacity of Ag2/PRA(1-18) was not attributable to a nonspecific immunostimulatory effect of DNA, as evidenced by the fact that mice immunized with a frameshift mutation of Ag2/PRA(1-18) were not protected against challenge. Furthermore, a synthetic peptide corresponding to the translated sequence of Ag2/PRA(1-18) DNA protected mice, albeit at a lower level than the Ag2/PRA(1-18) DNA vaccine. The protection induced with the signal gene vaccine correlated with the production of gamma interferon when splenocytes from Ag2/PRA(1-18)-immunized mice were stimulated with recombinant full-length Ag2 and was not associated with the production of anti-Coccidioides immunoglobulin G antibody. This is the first study to establish that a signal peptide sequence alone, administered as a gene vaccine or synthetic peptide, can induce protective immunity against a microbial pathogen.

scholarly journals Generation of Full-Length Class I Human Leukocyte Antigen Gene Consensus Sequences for Novel Allele Characterization

2016 ◽  
Vol 62 (12) ◽  
pp. 1630-1638 ◽  
Author(s):  
Peter M Clark ◽  
Jamie L Duke ◽  
Deborah Ferriola ◽  
Valia Bravo-Egana ◽  
Tunde Vago ◽  
...  
Keyword(s):  
Gene Sequence ◽  
Human Leukocyte ◽  
Full Length ◽  
Class I ◽  
Hla Alleles ◽  
Consensus Sequences ◽  
Leukocyte Antigen ◽  
Novel Alleles ◽  
Full Length Gene

Abstract BACKGROUND Routine, high-resolution human leukocyte antigen (HLA) genotyping by next generation sequencing within clinical immunogenetics laboratories can now provide the full-length gene sequence characterization of fully phased HLA alleles. This powerful technique provides insights into HLA variation beyond the traditionally characterized antigen recognition domain, providing sequence annotation across the entire gene including untranslated and intronic regions and may be used to characterize novel alleles from massively parallel sequencing runs. METHODS We evaluated the utility of the Omixon Holotype HLA assay to generate credible, fully phased full-length gene consensus sequences for 50 individuals at major histocompatibility complex, class I, A (HLA-A), HLA-B, and HLA-C loci (300 genotyped alleles in total) to identify and characterize novel class I HLA alleles using our downstream analytical pipeline. RESULTS Our analysis revealed that 7.7% (23/300) of genotyped class I HLA alleles contain novel polymorphisms. Interestingly, all of the novel alleles identified by our analysis were found to harbor sequence variations within intronic regions of the respective locus. In total our analysis identified 17 unique novel class I HLA alleles from 23 of the 300 genotyped alleles and generated full-length gene sequence annotations for 9 previously incompletely annotated HLA class I allele sequences derived from 14 of the 300 genotyped alleles. CONCLUSIONS The demonstrated utility of the Omixon Holotype HLA assay in combination with our downstream analytical framework to generate fully phased, full-length gene consensus sequences for the identification and characterization of novel HLA alleles, facilitates the study of HLA polymorphism beyond the antigen recognition domain in human health and disease.

scholarly journals Analysis of the Full-Length Pyriform Spidroin Gene Sequence

Genes ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 425 ◽  
Author(s):  
Kangkang Wang ◽  
Rui Wen ◽  
Qiupin Jia ◽  
Xiangqin Liu ◽  
Junhua Xiao ◽  
...  
Keyword(s):  
Gene Sequence ◽  
Biomechanical Properties ◽  
Silk Protein ◽  
Full Length ◽  
Biological Functions ◽  
Repetitive Region ◽  
Long Distance ◽  
Silk Fibers ◽  
Silk Fibroins ◽  
Full Length Gene

Spiders often produce multiple types of silk, each with unique properties suiting them to certain tasks and biological functions. Orb-weaver spiders can generate more than six types of silk fibroins, with pyriform silk used to form attachment discs, adhering silk to other surfaces and substances. The unique higher-order structuring of silk fibroins has been cited as the source of their remarkable biomechanical properties. Even so, only one full-length gene sequence of pyriform silk protein 1 (PySp1) from Argiopeargentata has been reported, and studies on the mechanical properties of natural pyriform silk fibers are also lacking. To better understand the PySp1 family of genes, we used long-distance PCR (LD-PCR) to determine the sequence of PySp1 in the Araneusventricosus species. This full-length PySp1 gene is 11,931 bp in length, encoding for 3976 amino acids residues in non-repetitive N- and C-terminal domains with a central largely repetitive region made up of sixteen remarkably homogeneous units. This was similar to the previously reported A. argentata PySp1 sequence, with PySp1 from A. ventricosus also having a long repetitive N-linker that bridges the N-terminal and repetitive regions. Predictions of secondary structure and hydrophobicity of A. ventricosus PySp1 showed the pyriform silk fiber’s functional properties. The amino acid compositions of PySp1 is obviously distinct from other spidroins. Our sequence makes an important contribution to understand pyriform silk protein structure and also provides a new template for recombinant pyriform silk proteins with attractive properties.

In Situ Localization of PPAR Gamma and Uncoupling Protein in Mouse Embryo Sections Using Digoxigenin-Labeled Riboprobes

1996 ◽  
Vol 54 ◽  
pp. 32-33
Author(s):  
C. Jennermann ◽  
S. A. Kliewer ◽  
D. C. Morris
Keyword(s):  
Alkaline Phosphatase ◽  
Room Temperature ◽  
Uncoupling Protein ◽  
Ppar Gamma ◽  
Nuclear Hormone Receptor ◽  
Full Length ◽  
Northern Analysis ◽  
Peroxisome Proliferator

Peroxisome proliferator-activated receptor gamma (PPARg) is a member of the nuclear hormone receptor superfamily and has been shown in vitro to regulate genes involved in lipid metabolism and adipocyte differentiation. By Northern analysis, we and other researchers have shown that expression of this receptor predominates in adipose tissue in adult mice, and appears first in whole-embryo mRNA at 13.5 days postconception. In situ hybridization was used to find out in which developing tissues PPARg is specifically expressed.Digoxigenin-labeled riboprobes were generated using the Genius™ 4 RNA Labeling Kit from Boehringer Mannheim. Full length PPAR gamma, obtained by PCR from mouse liver cDNA, was inserted into pBluescript SK and used as template for the transcription reaction. Probes of average size 200 base pairs were made by partial alkaline hydrolysis of the full length transcripts. The in situ hybridization assays were performed as described previously with some modifications. Frozen sections (10 μm thick) of day 18 mouse embryos were cut, fixed with 4% paraformaldehyde and acetylated with 0.25% acetic anhydride in 1.0M triethanolamine buffer. The sections were incubated for 2 hours at room temperature in pre-hybridization buffer, and were then hybridized with a probe concentration of 200μg per ml at 70° C, overnight in a humidified chamber. Following stringent washes in SSC buffers, the immunological detection steps were performed at room temperature. The alkaline phosphatase labeled, anti-digoxigenin antibody and detection buffers were purchased from Boehringer Mannheim. The sections were treated with a blocking buffer for one hour and incubated with antibody solution at a 1:5000 dilution for 2 hours, both at room temperature. Colored precipitate was formed by exposure to the alkaline phosphatase substrate nitrobluetetrazoliumchloride/ bromo-chloroindlylphosphate.

Pharmacokinetics of Full Length and Two-Domain Tissue Factor Pathway Inhibitor in Combination with Heparin in Rabbits

1993 ◽  
Vol 70 (03) ◽  
pp. 454-457 ◽  
Author(s):  
Claus Bregengaard ◽  
Ole Nordfang ◽  
Per Østergaard ◽  
Jens G L Petersen ◽  
Giorgio Meyn ◽  
...  
Keyword(s):  
Tissue Factor ◽  
Tissue Factor Pathway Inhibitor ◽  
Anticoagulant Activity ◽  
Fold Increase ◽  
Volume Of Distribution ◽  
Full Length ◽  
Heparin Binding ◽  
Extrinsic Pathway ◽  
C Terminus ◽  
Tissue Factor Pathway

SummaryTissue factor pathway inhibitor (TFPI) is a feed back inhibitor of the initial activation of the extrinsic pathway of coagulation. In humans, injection of heparin results in a 2-6 fold increase in plasma TFPI and recent studies suggest that TFPI may be important for the anticoagulant activity of heparin. Full length (FL) TFPI, but not recombinant two-domain (2D) TFPI, has a poly cationic C-terminus showing very strong heparin binding. Therefore, we have investigated if heparin affects the pharmacokinetics of TFPI with and without this C-terminus.FL-TFPI (608 U/kg) and 2D-TFPI (337 U/kg) were injected intravenously in rabbits with and without simultaneous intravenous injections of low molecular weight heparin (450 anti-XaU/kg).Heparin decreased the volume of distribution and the clearance of FL-TFPI by a factor 10-15, whereas the pharmacokinetics of 2D-TFPI were unaffected by heparin. When heparin was administered 2 h following TFPI the recovery of FL-TFPI was similar to that found in the group receiving the two compounds simultaneously, suggesting that the releasable pool of FL-TFPI is removed very slowly in the absence of circulating heparin.

Reflections on Successful Research in Artificial Intelligence: An Introduction

AI Magazine ◽  
2019 ◽  
Vol 40 (4) ◽  
pp. 3-5
Author(s):  
Ching-Hua Chen ◽  
James Hendler ◽  
Sabbir Rashid ◽  
Oshani Seneviratne ◽  
Daby Sow ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
General Public ◽  
Full Length ◽  
Editorial Team ◽  
Special Topic

This editorial introduces the special topic articles on reflections on successful research in artificial intelligence. Consisting of a combination of interviews and full-length articles, the special topic articles examine the meaning of success and metrics of success from a variety of perspectives. Our editorial team is especially excited about this topic, because we are in an era when several of the aspirations of early artificial intelligence researchers and futurists seem to be within reach of the general public. This has spurred us to reflect on, and re-examine, our social and scientific motivations for promoting the use of artificial intelligence in governments, enterprises, and in our lives.

Hepatic Encephalopathy and Liver Failure in Pediatric Patient with hepatitis A

2019 ◽  
Vol 9 (o3) ◽  
Author(s):  
Shaima’a Dakhel AbdulHassa
Keyword(s):  
Hepatic Encephalopathy ◽  
Liver Failure ◽  
Hepatitis A ◽  
Gene Sequence ◽  
Stool Examination ◽  
Age Group ◽  
Significant Difference ◽  
Medical City ◽  
Sequence Method ◽  
Stool Samples

Gairdia lamblia is one of parasites that cause intestinal problems within the human body, particularly private travelers and children. In this study a total of (100) diarrheal patients, 20 patients with Giardiasis were identified by fecal antigen. 9 out of 20(20%) of them were infected by fecal antigen, while 9(9%) of them were infected by using the screening general stool examination (GSE). The stool samples were collected from patient how vested the Medical City/ Baghdad and Tikrit teaching Hospital during the period from 1 st may 2018 to 1 February 2019. The results revealing a significant difference (p andlt; 0.05) between the two methods of detection for G. lamblia (Fecal antigen method and GSE). IT has been shown that out of 20 infected individuals 12(12%) were males and 8(8%) were females, indicating regarding no significant deference in the distribution of Giardiasis among genders. In regard the age, our results showed that highest infection rate 8(3.2%) was recorded in the age group (10-19) years, followed by the age group (20-2) years which was 692.4%). In this study five mutations were recorded at position (926, 1094, 1202and 1304), by using tpiA gene sequence method, and tpiB gene was on point mutation change (G254A), in the position (85) of triose phosphate isomease.

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