Strictly defined as single base substitutions involving A, T, C, or G.
A/T
Deletion/Insertion Polymorphisms (DIPs)
Designated using the full sequence of the insertion as one allele, and either a fully
defined string for the variant allele or a '-' character to specify the deleted allele.
This class will be assigned to a variation if the variation alleles are of different lengths or
if one of the alleles is deleted ('-').
T/-/CCTA/G
No-variation
Reports may be submitted for segments of sequence that are assayed and determined to be invariant
in the sample.
(NoVariation)
Mixed
Mix of other classes
Also supports NO_VARIATION type, used to indicate that the site isn't polymorphic in the population
Not currently supported:
Heterozygous sequence
The term heterozygous is used to specify a region detected by certain methods that do not
resolve the polymorphism into a specific sequence motif. In these cases, a unique flanking
sequence must be provided to define a sequence context for the variation.
(heterozygous)
Microsatellite or short tandem repeat (STR)
Alleles are designated by providing the repeat motif and the copy number for each allele.
Expansion of the allele repeat motif designated in dbSNP into full-length sequence will
be only an approximation of the true genomic sequence because many microsatellite markers are
not fully sequenced and are resolved as size variants only.
(CAC)8/9/10/11
Named variant
Applies to insertion/deletion polymorphisms of longer sequence features, such as retroposon
dimorphism for Alu or line elements. These variations frequently include a deletion '-' indicator
for the absent allele.
(alu) / -
Multi-Nucleotide Polymorphism (MNP)
Assigned to variations that are multi-base variations of a single, common length
GGA/AGT
Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Returns the enum constant of this class with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this class. (Extraneous whitespace characters are
not permitted.)
Parameters:
name - the name of the enum constant to be returned.