Table 4.

Distribution of the main phenotypes observed in the Italian population. The nomenclature system from Uhrberg is used for describing the patterns (5). Each genotype is also shown in the different patterns due to the distribution of KIR2DS4 alleles and the KIR2DL5 variants.

Genotypes	Number	Frequency %	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3
			D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
			L	L	L	L	L	L	S	S	S	S	S	S	L	L	L	S
			1	2	3	4	5	5	1	2	3	4	4	5	1	2	3	1
							A	B				*001–*002	*003
1	39	28.5	+	-	+	+	-	-	-	-	-	-	+	-	+	+	+	-
1	20		+	-	+	+	-	-	-	-	-	+	+	-	+	+	+	-
1	3		+	-	+	+	-	-	-	-	-	+	-	-	+	+	+	-
2	11		+	+	+	+	-	-	-	+	-	-	+	-	+	+	+	-
2	16	12.9	+	+	+	+	-	-	-	+	-	+	+	-	+	+	+	-
2	1		+	+	+	+	-	-	-	+	-	+	-	-	+	+	+	-
3	16	9.2	+	+	+	+	-	+	-	+	+	-	+	-	+	+	+	-
3	4		+	+	+	+	-	+	-	+	+	+	+	-	+	+	+	-
4	17	8.3	+	-	+	+	+	-	+	-	-	-	+	+	+	+	+	+
4	1		+	-	+	+	+	-	+	-	-	+	-	+	+	+	+	+
6	8	4.6	+	+	+	+	+	+	+	+	+	-	+	+	+	+	+	+
6	2		+	+	+	+	+	+	+	+	+	+	-	+	+	+	+	+
7	3	3.6	+	+	+	+	+	-	+	+	+	-	+	-	+	+	+	+
7	4		+	+	+	+	+	+	+	+	+	-	+	-	+	+	+	+
7	1		+	+	+	+	+	+	+	+	+	+	-	-	+	+	+	+
12	8	3.6	+	+	+	+	+	-	+	+	-	-	+	+	+	+	+	+