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Table 2 Genetic analysis of three patients with likely constitutive ADAMTS-13 deficiency

From: Incidence of obstetrical thrombotic thrombocytopenic purpura in a retrospective study within thrombocytopenic pregnant women. A difficult diagnosis and a treatable disease

Patient

ADAMTS-13 gene mutation

ADAMTS-13 gene polymorphism Protein (status)

ADAMTS-13 activity N >50 %

Exon/Intron number

Mutation (Status)

Protein

Protein

Non acute phase (basal)

A

Exon 24

c.3178C > T

p.Arg1060Trp

pArg7Trp (Htz)

5 %

(Htz)

heterozygous

pGln448Glu (Htz)

  

pPro618Ala (Htz)

pAla732Val (Htz)

pAla1033Thr (Htz)

B

-

-

-

pArg7Trp (Hm)

5-9 %

pGln448Glu (Hm)

pPro618Ala (Hm)

pAla732Val (Hm)

C

Exon 6

c.559G > C (Htz)

pAsp187His

-

<5 %

Intron 8

c.988-2A > C (Htz)

not described

  1. Deleterious polymorphism are in italic [22]
  2. Abbreviations: homozygous, Hm; heterozygous, Htz.