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Table 1 Characteristics of selected genes in this study

From: Etiological study of esophageal squamous cell carcinoma in an endemic region: a population-based case control study in Huaian, China

Loci

Gene location

Genotypes

Restriction enzymes

Methods

References

CYP1A1

3'-flanking

6235 T to C

MspI

PCR-RFLP

Hong et al, 1998 [25]

CYP1A1

exon 7

Ile462Val

NocI

PCR-RFLP

London et al, 2000 [27]

CYP1B1

exon 3

Val432Leu

Eco57I

PCR-RFLP

Saintot et al, 2004 [28]

CYP2A6

exon7–9

Deletion

-

Two step-PCR

Tan et al, 2001 [30]

CYP2E1

5'-flanking

c1/c2

RsaI

PCR-RFLP

Tan et al, 2000 [22]

GSTM1

Whole gene

GSTM1(-) 1

No amplification

Multiplex PCR

Wang et al, 2003 [23]

GSTT1

Whole gene

GSTT1(-) 1

No amplification

Multiplex PCR

Wang et al, 2003 [23]

GSTP1

exon 5

Ile105Val

Alw26I

PCR-RFLP

Harries et al, 1997 [26]

EHPX 113

exon 3

Tyr113His

Tth111I

PCR-RFLP

de Jong et al, 2003 [29]

EPHX 139

exon 4

His139Arg

RsaI

PCR-RFLP

de Jong et al, 2003 [29]

  1. 1null genotype.