Denoted in 1-based closed coordinates, i.e. the position on the first amino acid or nucleotide of a sequence has the value 1. For nucleotide sequences we count from the 5'end of the sequence, while for Aminoacid sequences we start counting from the N-Terminus.

The position value is the offset along the reference where this position is found. Thus the only the position value in combination with the reference determines where a position is.

position