Transporter TAP1-637G and Immunoproteasome PSMB9-60H Variants Influence the Risk of Developing Vitiligo in the Saudi Population

Table 3

Stratification of TAP1-D637G and PSMB9-R60H genotypes associated with different clinical types of vitiligo.

Vitiligo type	Number of cases (%)	TAP1-D637G			PSMB9-R60H
		(%)			(%)
		DD	DG	GG	RR	RH	HH
VV	44 (51.2)	0 (0.0)	24 (54.5)	20 (45.5)	10 (22.7)	26 (59.1)	8 (18.2)
UV	6 (7.0)	0 (0.0)	4 (66.7)	2 (33.3)	2 (33.3)	2 (33.3)	2 (33.3)
FV	18 (20.9)	0 (0.0)	4 (22.2)	14 (77.8)	6 (33.3)	10 (55.6)	2 (11.1)
AV	16 (18.6)	0 (0.0)	10 (62.5)	6 (37.5)	6 (37.5)	8 (50.0)	2 (12.5)
SV	2 (2.3)	0 (0.0)	2 (100)	0 (0.0)	0 (0.0)	2 (100)	0 (0.0)

AV: acral/acrofacial vitiligo; FV: focal vitiligo; SV: segmental vitiligo; UV: universalis vitiligo; VV: vulgaris vitiligo.
“” is the number of genotypes in TAP1 or PSMB9 variants.