Biomaterial Database

Attempt to calculate the allele frequency distribution of a TaqI RFLP detected by the highly polymorphic probe YNH24. 1990

P H van Eede, and T M Cuypers, and G G de Lange

Central Laboratory, Netherlands Red Cross Blood Transfusion Service, Amsterdam.

To improve the analysis of parentage testing with the additional technique of DNA polymorphisms, the usefulness of probe YNH24 was studied. The allele frequency distribution of restriction fragments detected by probe YNH24 on TaqI-digested genomic DNA from 100 unrelated individuals was determined. For this purpose, the size of the fragments was calculated by making use of HindIII-digested lambda DNA as an internal marker and of a digitizing tablet coupled to a computer. The size of the fragments ranged from 2.53 kb to 5.89 kb. The mean standard deviation was 0.05 kb. The differences between the fragment sizes appeared to be smaller than the standard deviation. For this reason, it was not possible to calculate the allele frequency distribution of this highly polymorphic genetic system.

UI	MeSH Term	Description	Entries
D012150	Polymorphism, Restriction Fragment Length	Variation occurring within a species in the presence or length of DNA fragment generated by a specific endonuclease at a specific site in the genome. Such variations are generated by mutations that create or abolish recognition sites for these enzymes or change the length of the fragment.	RFLP,Restriction Fragment Length Polymorphism,RFLPs,Restriction Fragment Length Polymorphisms
D004247	DNA	A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).	DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005787	Gene Frequency	The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION.	Allele Frequency,Genetic Equilibrium,Equilibrium, Genetic,Allele Frequencies,Frequencies, Allele,Frequencies, Gene,Frequency, Allele,Frequency, Gene,Gene Frequencies
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000483	Alleles	Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product.	Allelomorphs,Allele,Allelomorph
D015247	Deoxyribonuclease HindIII	One of the Type II site-specific deoxyribonucleases (EC 3.1.21.4). It recognizes and cleaves the sequence A/AGCTT at the slash. HindIII is from Haemophilus influenzae R(d). Numerous isoschizomers have been identified. EC 3.1.21.-.	DNA Restriction Enzyme HindIII,Deoxyribonuclease BstFI,Deoxyribonuclease EcoVIII,Endonuclease HindIII,B Pertussis Restriction Enzyme I,BpeI Endonuclease,Endodeoxyribonuclease BpeI,Endonuclease Asp52I,Endonuclease BbrI,Endonuclease BpeI,Endonuclease BstFI,Endonuclease Cfr32I,Endonuclease ChuI,Endonuclease Eco65I,Endonuclease Eco98I,Endonuclease EcoVIII,Endonuclease Hin1076III,Endonuclease Hin173I,Endonuclease HinJCII,Endonuclease HinbIII,Endonuclease HinfII,Endonuclease HsuI,Endonuclease LlaCI,Endonuclease MkiI,LlaCI, Endonuclease
D015252	Deoxyribonucleases, Type II Site-Specific	Enzyme systems containing a single subunit and requiring only magnesium for endonucleolytic activity. The corresponding modification methylases are separate enzymes. The systems recognize specific short DNA sequences and cleave either within, or at a short specific distance from, the recognition sequence to give specific double-stranded fragments with terminal 5'-phosphates. Enzymes from different microorganisms with the same specificity are called isoschizomers. EC 3.1.21.4.	DNA Restriction Enzymes, Type II,DNase, Site-Specific, Type II,Restriction Endonucleases, Type II,Type II Restriction Enzymes,DNase, Site Specific, Type II,Deoxyribonucleases, Type II, Site Specific,Deoxyribonucleases, Type II, Site-Specific,Site-Specific DNase, Type II,Type II Site Specific DNase,Type II Site Specific Deoxyribonucleases,Type II Site-Specific DNase,Type II Site-Specific Deoxyribonucleases,Deoxyribonucleases, Type II Site Specific,Site Specific DNase, Type II
D015342	DNA Probes	Species- or subspecies-specific DNA (including COMPLEMENTARY DNA; conserved genes, whole chromosomes, or whole genomes) used in hybridization studies in order to identify microorganisms, to measure DNA-DNA homologies, to group subspecies, etc. The DNA probe hybridizes with a specific mRNA, if present. Conventional techniques used for testing for the hybridization product include dot blot assays, Southern blot assays, and DNA:RNA hybrid-specific antibody tests. Conventional labels for the DNA probe include the radioisotope labels 32P and 125I and the chemical label biotin. The use of DNA probes provides a specific, sensitive, rapid, and inexpensive replacement for cell culture techniques for diagnosing infections.	Chromosomal Probes,DNA Hybridization Probe,DNA Probe,Gene Probes, DNA,Conserved Gene Probes,DNA Hybridization Probes,Whole Chromosomal Probes,Whole Genomic DNA Probes,Chromosomal Probes, Whole,DNA Gene Probes,Gene Probes, Conserved,Hybridization Probe, DNA,Hybridization Probes, DNA,Probe, DNA,Probe, DNA Hybridization,Probes, Chromosomal,Probes, Conserved Gene,Probes, DNA,Probes, DNA Gene,Probes, DNA Hybridization,Probes, Whole Chromosomal