Biomaterial Database

Specific arrangements of human satellite III DNA sequences in human chromosomes. 1979

R S Beauchamp, and A R Mitchell, and R A Buckland, and C J Bostock

DNA was extracted from various rodent-human somatic cell hybrids that contained single or a few human chromosomes. These DNAs were examined by a combination of restriction endonuclease digestion, gel electrophoresis, and filter hybridisation to radioactive satellite DNA probes following transfer of the denatured restriction fragments from a gel to a nitrocellulose filter. In this way the arrangement of sequences homologous to human satellite III were examined on human chromosomes 1, 7, 11, 15, 22 and X. It was found that the distribution of restriction endonuclease sites within satellite III DNA is different on different chromosomes.

UI	MeSH Term	Description	Entries
D002900	Chromosomes, Human, 1-3	The large, metacentric human chromosomes, called group A in the human chromosome classification. This group consists of chromosome pairs 1, 2, and 3.	Chromosomes A,Group A Chromosomes,Chromosome, Group A,Chromosomes, Group A,Group A Chromosome
D002901	Chromosomes, Human, 13-15	The medium-sized, acrocentric human chromosomes, called group D in the human chromosome classification. This group consists of chromosome pairs 13, 14, and 15.	Chromosomes D,Group D Chromosomes,Chromosome, Group D,Chromosomes, Group D,Group D Chromosome
D002904	Chromosomes, Human, 21-22 and Y	The short, acrocentric human chromosomes, called group G in the human chromosome classification. This group consists of chromosome pairs 21 and 22 and the Y chromosome.	Chromosomes G,Group G Chromosomes,Chromosomes, Human, 21 22,Chromosomes, Human, 21-22,Chromosome, Group G,Chromosomes, Group G,Group G Chromosome
D002906	Chromosomes, Human, 6-12 and X	The medium-sized, submetacentric human chromosomes, called group C in the human chromosome classification. This group consists of chromosome pairs 6, 7, 8, 9, 10, 11, and 12 and the X chromosome.	Chromosomes C,Group C Chromosomes,Chromosomes, Human, 6-12,Chromosome, Group C,Chromosomes, Group C,Group C Chromosome
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
D004262	DNA Restriction Enzymes	Enzymes that are part of the restriction-modification systems. They catalyze the endonucleolytic cleavage of DNA sequences which lack the species-specific methylation pattern in the host cell's DNA. Cleavage yields random or specific double-stranded fragments with terminal 5'-phosphates. The function of restriction enzymes is to destroy any foreign DNA that invades the host cell. Most have been studied in bacterial systems, but a few have been found in eukaryotic organisms. They are also used as tools for the systematic dissection and mapping of chromosomes, in the determination of base sequences of DNAs, and have made it possible to splice and recombine genes from one organism into the genome of another. EC 3.21.1.	Restriction Endonucleases,DNA Restriction Enzyme,Restriction Endonuclease,Endonuclease, Restriction,Endonucleases, Restriction,Enzymes, DNA Restriction,Restriction Enzyme, DNA,Restriction Enzymes, DNA
D004276	DNA, Satellite	Highly repetitive DNA sequences found in HETEROCHROMATIN, mainly near centromeres. They are composed of simple sequences (very short) (see MINISATELLITE REPEATS) repeated in tandem many times to form large blocks of sequence. Additionally, following the accumulation of mutations, these blocks of repeats have been repeated in tandem themselves. The degree of repetition is on the order of 1000 to 10 million at each locus. Loci are few, usually one or two per chromosome. They were called satellites since in density gradients, they often sediment as distinct, satellite bands separate from the bulk of genomic DNA owing to a distinct BASE COMPOSITION.	Satellite DNA,Satellite I DNA,DNA, Satellite I,DNAs, Satellite,DNAs, Satellite I,I DNA, Satellite,I DNAs, Satellite,Satellite DNAs,Satellite I DNAs
D004587	Electrophoresis, Agar Gel	Electrophoresis in which agar or agarose gel is used as the diffusion medium.	Electrophoresis, Agarose Gel,Agar Gel Electrophoresis,Agarose Gel Electrophoresis,Gel Electrophoresis, Agar,Gel Electrophoresis, Agarose
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man