DYS464 is a marker where genetic material is typically duplicated at four locations.

The SMGF search page permits separate entry of the four allele values ("a", "b", "c", and "d"), and the Results page indicates matches graphically in the same order input. Matches are displayed in light blue while a mismatch is displayed in dark blue in the appropriate quadrant.

For DYS464, four values can be determined, but not the locations at which they occur. Since the order of the locations is unknown, the SMGF search engine will locate all of the values that match your input values, regardless of the order.

For Example, all the following result in a partial match.

Input Values	Database Values	Result
13   15   17   17	14   15   17   17
15   17   17   17	14   15   17   17
15   16   17   17	14   15   17   17

If there is a mismatch of one or more of the values (i.e. , , , ), then the number of matches shown on the results screen decreases by one. For matching purposes, all four together count as one marker mismatch (36/37 for an otherwise exact match).

Since the order of the DYS464 values is unknown, we do not include DYS464 in the TMRCA (Time to Most Recent Common Ancestor) calculation at this time.