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Table 3 Features of selected VNTR loci observed in 100 N. meningitidis isolates.

From: Use of a multilocus variable-number tandem repeat analysis method for molecular subtyping and phylogenetic analysis of Neisseria meningitidis isolates

Locus

Length of repeat unit (bp)

Size range of amplicon (bp)

Range of repeat unita

Number of allelesa

Polymorphism indexb

NMTR1

7

197–589

3–59

40

0.96

NMTR2

7

236–446

4–34

23

0.92

NMTR6

21

165–228

2–5

4

0.73

NMTR7

4

195–291

3–27

18

0.9

NMTR9

9

189–513

3–39

28

0.94

NMTR9a

30

188–278

1–4

4

0.6

NMTR9b

18

182–218

1–3

3

0.33

NMTR9c

15

187–217

2–4

3

0.35

NMTR10

6

221–395

4–33

12

0.71

NMTR12

13, 12

218–572

3–31

19

0.81

NMTR18

9

182–227

2–7

6

0.67

NMTR19

13

186–251

2–7

6

0.64

  1. aNot including the unamplifiable allele at NMTR1 and NMTR12.
  2. bNei's diversity index (DI) = 1 - ∑ (allele frequency)2