Table 2 Predicted causal variants, in eighteen probands with phenotypes matching hypomorphic albinism.

From: Identification of a functionally significant tri-allelic genotype in the Tyrosinase gene (TYR) causing hypomorphic oculocutaneous albinism (OCA1B)

Proband

Variant 1

Variant 2

Variant 3

1

2

3

TYR c.529 G > T p.V177F (SIFT = . PolyPhen = D GERP = 5.16)

OCA2 c.822 G > C p.W274C (SIFT = 0 PolyPhen = D GERP = 4.66)

OCA2 c.1948C > G p.Loo650V (SIFT = 0.03 PolyPhen = D GERP = 5.75)

4

TYR c.1467dup p.T489fs

5

TYR c.505_507del p.D169del

6

TYR c.732_733del p.C244Ter

7

TYR c.1204 C > T p.R402Ter

8

OCA2 c.1393 A > G p.N465D (SIFT = 0.01 PolyPhen = D GERP = 5.33)

TYRP1 c.1037 C > G p.P346R (SIFT = 0 PolyPhen = D GERP = 5.73)

9

TYR c.1217 C > T p.P406L (SIFT = . PolyPhen = D GERP = 4.68)

PAX6 c.1264 C > A p.Q422K (SIFT = 0 PolyPhen = D GERP = 6.16)

10

GPR143 c.485del p.W162fs

11

12

TYR c.1217 C > T p.P406L (SIFT = . PolyPhen = D GERP = 4.68)

13

OCA2 c.1606C > T p.R536C (SIFT = 0.01 PolyPhen = D GERP = 5.8)

14

15

16

OCA2 c.1255 G > A p.V419I (SIFT = 0.02 PolyPhen = D GERP = 5.2)

OCA2 c.1025 A > G p.Y342C (SIFT = 0 PolyPhen = D GERP = 5.55)

17

OCA2 c.1255 G > A p.V419I (SIFT = 0.02 PolyPhen = D GERP = 5.2)

18

TYR c.1264 C > T p.R422W (SIFT = . PolyPhen = D GERP = 2.69)

  1. Pathogenicity determined by filtering all variants in the genes; TYR, OCA2, TYRP1, SLC45A2, SLC24A5, C10orf11 and PAX6, with the parameters MAF < 0.05, SIFT < 0.05, PolyPhen2 = possibly damaging or probably damaging. The prediction scores for non-synonymous variants are included, for some mutations a prediction score was not available at the time of analysis. Gene accessions number: TYR NM_000372, OCA2 NM_001300984, PAX6 NM_001258465, TYRP1 NM_000550, GPR143 NM_000273.