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GenBank Feature Locations
Tip: Description of GenBank format locations

Help: Explanation of GenBank Locations

 
Location Example Description
467 Points to a single base in the presented sequence
340..565

Points to a continuous range of bases bounded by and including the starting and ending bases

<345..500

Indicates that the exact lower boundary point of a feature is unknown. The location begins at some base previous to the first base specified (which need not be contained in the presented sequence) and continues to and includes the ending base

<1..888

The feature starts before the first sequenced base and continues to and includes base 888

(102.110)

Indicates that the exact location is unknown but that it is one of the bases between bases 102 and 110, inclusive

(23.45)..600

Specifies that the starting point is one of the bases between bases 23 and 45, inclusive, and the end point is base 600

(122.133)..(204.221)

The feature starts at a base between 122 and 133, inclusive, and ends at a base between 204 and 221, inclusive

123^124 Points to a site between bases 123 and 124
145^177

Points to a site between two adjacent bases anywhere between bases 145 and 177

join(12..78,134..202)

Regions 12 to 78 and 134 to 202 should be joined to form one contiguous sequence

complement(join(2691..4571,
4918..5163))

Joins regions 2691 to 4571 and 4918 to 5163, then complements the joined segments (the feature is on the strand complementary to the presented strand)

join(complement(4918..5163),
complement(2691..4571))

Complements regions 4918 to 5163 and 2691 to 4571, then joins the complemented segments (the feature is on the strand complementary to the presented strand)

complement(34..(122.126))

Start at one of the bases complementary to those between 122 and 126 on the presented strand and finish at the base complementary to base 34 (the feature is on the strand complementary to the presented strand)

J00194:100..202

Points to bases 100 to 202, inclusive, in the entry (in this database) with primary accession number 'J00194'