codons
Proteins are made up of monomers called amino acids.
The linear sequence of amino acids in a polypeptide chain is called the primary structure. It is determined by the specific order of amino acids in the chain, which is encoded by the sequence of nucleotides in the gene that codes for the protein.
Amino acids held together by peptide bonds.
Proteins are made up of smaller units called amino acids which are strung together to form proteins which can be of different sizes and shapes.
That MAY have happened 3.5 billion years ago ... but not today. DNA carries the codes for amino acid sequences. RNA transfers the codes. Ribosomes link the amino acids into proteins. Amino acids don't code for proteins, genes do. The base sequence in the genes codes for how the amino acids should be sequenced to make proteins.
Amino acids are called amino acids because they contain an amino group (-NH2) and a carboxyl group (-COOH) in their chemical structure. These two functional groups are essential for the formation of proteins and are characteristic of all amino acids.
peptides which are constructed from amino-acids
dna gives codes for 1 of20 amino acids. amino acids form chains and a complete chain is a protein.
Long chains of amino acids are called polypeptides.
Cysteine ^_^
A strand of DNA codes for amino acids through the sequence of nucleotides. Each group of three nucleotides, called a codon, corresponds to one amino acid. There are 20 standard amino acids that can be encoded by DNA.
The one-letter codes for amino acids that contain the keyword "protein" are P (Proline) and K (Lysine).