Table 2 Structural modeling results for missense variants in the FHA domain.

From: Prenatal phenotype of PNKP-related primary microcephaly associated with variants affecting both the FHA and phosphatase domain

p-codea

p.(Gln50Glu)

p.(Val51Leu)

p.(Ala55Ser)

p.(Gln66Glu)

p.(Pro101Leu)

p.(Leu104Pro)

Case or reference

PMID: 31167812

P4b

PMID: 24965255

PMID: 30956058

P1 and P2

P3

CADD PHRED score v1.6

26.5

22.7

25.0

26.0

27.9

28.5

Missense3D

Replaces a buried uncharged residue with a charged residue

No structural damage

No structural damage

Replaces a buried uncharged residue with a charged residue

Local steric clash alert

Introduces a buried proline in the core of the protein domain

DynaMut

Destabilizing (ΔΔG:

–0.362 kcal/mol)

Increase of molecule flexibility (ΔΔSVib ENCoM: 0.357 kcal/mol*K)

Destabilizing (ΔΔG:

–0.670 kcal/mol)

Little decrease of molecule flexibility (ΔΔSVib ENCoM: –0.591 kcal/mol*K)

Stabilizing (ΔΔG: 0.989 kcal/mol)

Little decrease of molecule flexibility (ΔΔSVib ENCoM: –0.345 kcal/mol*K).

Stabilizing (ΔΔG: 0.294 kcal/mol)

Very little increase of molecule flexibility (ΔΔSVib ENCoM: 0.084 kcal/mol*K)

Stabilizing (ΔΔG: 1.510 kcal/mol)

Slightly decrease of molecule flexibility (ΔΔSVib ENCoM: –0.287 kcal/mol*K)

Destabilizing (ΔΔG: –1.608 kcal/mol)

Increase of molecule flexibility (ΔΔSVib ENCoM: 0.615 kcal/mol*K)

  1. aReference transcript: NM_007254.3.
  2. bThe c.151G>C base exchange observed in P4 causes a complex protein level (p.[Val51Leu,Val51Argfs*68]) p.[Val51Leu,Val51Argfs*68].