The human genome has at least 100,000 genes and is estimated to have 3,000,000,000 base pairs. Compare with RNA which has a MW of 20,000-40,000. Ranges in size from fewer than 1,000 bases to several million. The specific sequence of nucleotide bases carries the information for constructing proteins. It brings together chemically reactive amino acids in a specific arrangement for optimal catalysis.
Enzymes are proteins tailored to catalyze specific biological reactions.
They range from simple metals to large aromatic groups such as heme and flavin. Conserved patterns of amino acids or nucleotides that are common to a group of functionally related sequences and often encode or specify the discrete function. Only nucleic acid sequences with lengths of nine or more residues are available for searching and displaying using 1- letter sequence codes. Dipeptides and tripeptides are also registered but can only be searched by name or structure. Also can search things like gene name, organism name, sequence length, etc.