نتایج جستجو برای: intergenotypic variable region

تعداد نتایج: 779819  

Journal: :jundishapur journal of microbiology 0
sajjad ahmad department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan; department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan faisal ahmad department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan faiz ur rahman department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan salman khan department of microbiology, faculty of biological sciences, quaid-i-azam university, islamabad, pakistan waheed murad department of microbiology and molecular genetics (mmg), university of punjab, lahore, pakistan imran mughal center of biotechnology and microbiology (cobam), university of peshawar, peshawar, pakistan

conclusions the distribution patterns of phase-variable genes in pakistani h. pylori strains were found to be somewhat different. the dominant prevalence of the hsdr gene was an interesting finding, considering its role in bacterial defense in both micro- and macroenvironments. results on culturing, the prevalence of h. pylori infections in the samples was 44.7%. the prevalence was higher in fe...

2012
Ruchi Shukla Samee Ullah Khan

Details of a heat pump assisted solar water heating system, is briefly described. Refrigerants compromising of Fluorocarbons and Chlorofluorocarbons have been generally used as the working fluid. But due to its ozone depletion effect and high Global warming potential, they have been replaced by synthetic refrigerants such as R22, R134 etc. The heat pump utilizing such refrigerants has shown to ...

2017
Deanne L. Coppejans Elmar. G. Körding James C.A. Miller-Jones Michael P. Rupen Gregory R. Sivakoff Christian Knigge Paul J. Groot Patrick A. Woudt Elizabeth O. Waagen Matthew Templeton

We present 8–12 GHz radio light curves of five dwarf nova (DN) type Cataclysmic Variable stars (CVs) in outburst (RX And, U Gem and Z Cam), or superoutburst (SU UMa and YZ Cnc), increasing the number of radio-detected DN by a factor of two. The observed radio emission was variable on time-scales of minutes to days, and we argue that it is likely to be synchrotron emission. This sample shows no ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
C Su M Nei

The Ig heavy chain variable region (V(H)) genes encode the antigen-binding regions of antibodies. The rabbit genome contains more than 100 V(H) genes, but only one (V(H)1) is preferentially used in the VDJ gene rearrangement. Three highly divergent alleles occur at this V(H)1 locus in most rabbit populations. These three V(H) alleles are also present in snowshoe hare populations, indicating tha...

2012
Huseyin Saribasak Robert W. Maul Zheng Cao William W. Yang Dominik Schenten Sven Kracker Patricia J. Gearhart

Low-fidelity DNA polymerases introduce nucleotide substitutions in immunoglobulin variable regions during somatic hypermutation. Although DNA polymerase (pol) η is the major low-fidelity polymerase, other DNA polymerases may also contribute. Existing data are contradictory as to whether pol ζ is involved. We reasoned that the presence of pol η may mask the contribution of pol ζ, and therefore w...

Journal: :The Journal of Experimental Medicine 1970
Tai Te Wu Elvin A. Kabat

In an attempt to account for antibody specificity and complementarity in terms of structure, human kappa-, human lambda-, and mouse kappa-Bence Jones proteins and light chains are considered as a single population and the variable and constant regions are compared using the sequence data available. Statistical criteria are used in evaluating each position in the sequence as to whether it is ess...

Journal: :Journal of clinical microbiology 2002
Flavia Huygens Graeme R Nimmo Jacqueline Schooneveldt Wendy J Munckhof Philip M Giffard

The region surrounding mecA in methicillin-resistant Staphylococcus aureus (MRSA) is highly variable. We describe an approach for the rapid genotyping of MRSA by assaying for the presence or absence of variable or mobile elements previously shown to be associated with the mecA region.

2008
Krishna Challa

This paper attempts to provide a unified framework that takes into account various aspects of the oil and natural gas exploratory process such as the depletion of the resource base with time, uncertainty in drilling, changing economic incentives and the joint product aspects of the oil and gas exploration. The equilibrium in the market for oil and natural gas prospects is first described and th...

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