there is no "protein in a prion", because prion is nothing but a protein. The gene sequence of this protein is just normal, with nothing special.
A gene is a DNA sequence that codes for a protein.
A mutation is a permenent in DNA sequence of a gene,mutation in a gene's DNA sequence can alterthe aminoacid sequence of the protein encodedby the gene.
Discuss/diagram the process from gene to protein. In other words, how do we build a protein based on a sequence of DNA?
find the protein sequence in protein sequence data base.....then from the protein sequence u can find the antibody gene sequence...... u can also go for nucleotide sequencing....which will directly help u in getting the sequence.....u can check this in bioinformatics data base
gene
Prion
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. The cell reads the sequence of the gene in groups of three bases. Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.
gene
a blueprint of one (sometimes of a few more) protein. It is a simple sequence of four units - A, T, G, C. So a gene looks like e.g. AGATGACTAGTCAAACCCCGGTCGACGCGCTACAT (lets say 10 times longer). This unique sequence of every gene is then translated to sequence of protein (protein = a chain, a sequence of aminoacids).Also, you find "promoter" and "terminator" sequences in each gene, required by gene-processing machinery (gene processing machinery is my own expression, it is not a terminus).
YES
mutation is a permanent change in the DNA sequence of a gene and can alter the amino acid sequence of the protein encoded by the gene..
If the point mutation does not change the protein to be translated in the 3-letter sequence, then it will have no effect on the gene's function.