Restriction fragment length polymorphism of pepsinogen C gene in patients with gastric carcinoma and in high risk population of gastric carcinoma

Table 1 The distribution of pepsinogen C 301 alleles

Allele	Size (kb)	Normal subjects	Patients
		n (%)	n (%)
a1	20.0	22 (100)	16 (80)
a2	5.7	22 (100)	20 (100)
a3	3.6	20 (90)	14 (70)
a4	3.5	2 (10)	6 (30)

Table 2 The distribution of DNA band types

Hybrid band type	Normal subjects	Patients
	n (%)	n (%)
Common type
a1/a2/a3	9 (82)	4 (40)
Rare type
a1/a2/a3/a4	2 (8)	3 (30)
a1/a2/a4	0	1 (10)
a2/a3/a4	0	1 (10)
a2/a3	0	1 (10)

Table 3 The distribution of pepsinogen C 301 alleles

Allele	Size (kb)	Family members n (%)
a1	20.0	38 (100)
a2	5.7	38 (100)
a3	3.6	36 (86.8)
a4	3.5	5 (13.2)

Table 4 The distribution of DNA band types

Hybrid band type	Family members n (%)
Common type
a1/a2/a3	15 (78.94)
Rare type
a1/a2/a3/a4	3 (15.79)
a1/a2/a4	1 (5.26)