Questions and Answers (55) View all
-
Answer added in PCR4 PCR to identify Wild type and Mutant IsolatesBy Claudia Anthony · University of MalayaClaudia Anthony · University of MalayaHi Guru, Thank you for your reply.So how do I conduct this PCR?Hi Guru, Thank you for your reply.So how do I conduct this PCR?Following
-
Question asked in PCR4 PCR to identify Wild type and Mutant IsolatesWhat is a mismatch primer and what is its function? I need to identify SNPs and for that design specific primers. But instead of the usual forward and... [more]What is a mismatch primer and what is its function? I need to identify SNPs and for that design specific primers. But instead of the usual forward and reverse, it appears I also need to design an internal primer. And when I run my gel, I may then get one band for the wildtype, and 2 for the mutant or vice versa. Why is this?By Claudia Anthony · University of MalayaFollowing
-
Question asked in Karyotyping5 SNPs IdentificationI'd like to know how to compare the sequence results of a particular gene of various isolates against the parent strain and identifying SNPs? Meaning,... [more]I'd like to know how to compare the sequence results of a particular gene of various isolates against the parent strain and identifying SNPs? Meaning, I'd like to know how I go about comparing a particular gene of one isolate against the parent strain, in this case P vivax Sal-1 and finding differences in amino acids at a particular codon, if any.By Claudia Anthony · University of MalayaFollowing
-
Answer added in Methods34 Amplifying LARGE gene fragmentsBy Claudia Anthony · University of MalayaClaudia Anthony · University of MalayaDavid, What is the left primer and right primer. Is there a particular one representing the forward and reverse or are they to be chosen by me. Also,... [more]David, What is the left primer and right primer. Is there a particular one representing the forward and reverse or are they to be chosen by me. Also, how do I use Primer3?Following
-
Answer added in Methods34 Amplifying LARGE gene fragmentsBy Claudia Anthony · University of MalayaClaudia Anthony · University of MalayaI was able to upload with Mozilla. Unfortunately, I'm only able to upload one pic at a time and so you would find 4 different posts. If there's more... [more]I was able to upload with Mozilla. Unfortunately, I'm only able to upload one pic at a time and so you would find 4 different posts. If there's more info that's required, I'd be more than happy to share. Help is much appreciated! P/S:Excuse the typos that you will find in the 4 posts ClaudiaFollowing
Publications (1) View all
-
Article: Specific, sensitive and rapid detection of human plasmodium knowlesi infection by loop-mediated isothermal amplification (LAMP) in blood samples.
Yee-Ling Lau, Mun-Yik Fong, Rohela Mahmud, Phooi-Yee Chang, Vanitha Palaeya, Fei-Wen Cheong, Lit-Chein Chin, Claudia N Anthony, Abdulsalam M Al-Mekhlafi, Yeng Chen[show abstract] [hide abstract]
ABSTRACT: The emergence of Plasmodium knowlesi in humans, which is in many cases misdiagnosed by microscopy as Plasmodium malariae due to the morphological similarity has contributed to the needs of detection and differentiation of malaria parasites. At present, nested PCR targeted on Plasmodium ssrRNA genes has been described as the most sensitive and specific method for Plasmodium detection. However, this method is costly and requires trained personnel for its implementation. Loop-mediated isothermal amplification (LAMP), a novel nucleic acid amplification method was developed for the clinical detection of P. knowlesi. The sensitivity and specificity of LAMP was evaluated in comparison to the results obtained via microscopic examination and nested PCR. LAMP assay was developed based on P. knowlesi genetic material targeting the apical membrane antigen-1 (AMA-1) gene. The method uses six primers that recognize eight regions of the target DNA and it amplifies DNA within an hour under isothermal conditions (65°C) in a water-bath. LAMP is highly sensitive with the detection limit as low as ten copies for AMA-1. LAMP detected malaria parasites in all confirm cases (n = 13) of P. knowlesi infection (sensitivity, 100%) and none of the negative samples (specificity, 100%) within an hour. LAMP demonstrated higher sensitivity compared to nested PCR by successfully detecting a sample with very low parasitaemia (< 0.01%). With continuous efforts in the optimization of this assay, LAMP may provide a simple and reliable test for detecting P. knowlesi malaria parasites in areas where malaria is prevalent.Malaria Journal 01/2011; 10:197. · 3.19 Impact Factor