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Table 4 Variations of HPV18 E6 gene from patients with different grades of cervical lesions

From: Type distribution of human papillomaviruses in ThinPrep cytology samples and HPV16/18 E6 gene variations in FFPE cervical cancer specimens in Fars province, Iran

No.

Grade of cervical lesion

Type of variant

104

149

153

232

287

317

377

382

485

549

554

Accession number

  

Reference

T

T

C

A

G

T

A

T

T

C

C

AY262282

1

Normal

A1

–

–

–

–

–

–

–

–

–

–

–

OP572475

2

Normal

A1

–

–

–

–

–

G*

–

–

–

–

–

OP572476

3

Normal

A1

–

–

–

–

–

–

–

–

–

–

–

OP572477

4

Normal

A1

–

–

–

–

–

–

–

G*

–

–

–

OP572478

5

Normal

A1

–

–

–

–

–

–

–

–

–

–

–

OP572479

6

Normal

A3

C

–

–

G

–

–

–

–

C

A

–

OP572480

7

Normal

A3

C

–

–

G

–

–

–

–

C

A

–

OP572481

8

Normal

A4

C

–

–

–

–

–

–

–

C

A

–

OP572482

9

Normal

A4

C

–

–

–

–

–

–

–

C

A

–

OP572483

10

Normal

A4

C

–

–

–

C*

–

–

–

C

A

–

OP572484

11

Normal

A4

C

–

–

–

–

–

–

–

C

A

–

OP572485

12

Normal

A5

C

C

–

–

–

–

G

–

C

A

–

OP572486

13

LSIL/CIN1

A1

–

–

–

–

–

–

–

–

–

–

–

OP572487

14

LSIL/CIN1

A1

–

C*

–

–

–

–

–

–

–

–

–

OP572488

15

LSIL/CIN1

A1

–

–

–

–

–

–

–

–

–

–

–

OP572489

16

LSIL/CIN1

A1

–

–

–

–

–

–

–

–

–

–

–

OP572490

17

LSIL/CIN1

A1

–

–

–

–

–

–

–

–

–

–

T*

OP572491

18

LSIL/CIN1

A1

–

–

–

–

–

–

–

–

–

–

–

OP572492

19

LSIL/CIN1

A3

C

–

–

G

–

–

–

–

C

A

–

OP572493

20

LSIL/CIN1

A4

C

–

–

–

–

–

–

–

C

A

–

OP572494

21

LSIL/CIN1

A4

C

–

–

–

–

–

–

–

C

A

–

OP572495

22

LSIL/CIN1

A4

C

–

–

–

–

–

–

–

C

A

–

OP572496

23

LSIL/CIN1

A4

C

–

–

–

–

–

–

–

C

A

–

OP572497

24

LSIL/CIN1

A4

C

–

–

–

–

–

–

–

C

A

–

OP572498

25

HSIL/CIN2-3

A1

–

–

–

–

–

–

–

–

–

–

–

OP572499

26

HSIL/CIN2-3

A3

C

–

–

G

–

–

–

–

C

A

–

OP572500

27

HSIL/CIN2-3

A3

C

–

–

G

–

–

–

–

C

A

–

OP572501

28

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572502

29

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572503

30

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572504

31

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572505

32

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572506

33

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572507

34

HSIL/CIN2-3

A4

C

–

–

–

–

–

–

–

C

A

–

OP572508

35

HSIL/CIN2-3

A5

C

C

T*

–

–

–

G

–

C

A

–

OP572509

36

HSIL/CIN2-3

A5

C

C

–

–

–

–

G

–

–*

–*

–

OP572510

37

SCC

A1

–

–

–

–

–

–

–

–

–

–

–

OP572511

38

SCC

A3

C

–

–

G

–

–

–

–

C

A

–

OP572512

39

SCC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572513

40

SCC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572514

41

SCC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572515

42

SCC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572516

43

SCC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572517

44

ADC

A3

C

–

–

G

–

–

–

–

C

A

–

OP572518

45

ADC

A3

C

–

–

G

–

–

–

–

C

A

–

OP572519

46

ADC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572520

47

ADC

A4

C

–

–

–

–

–

–

–

C

A

–

OP572521

48

ADC

A5

C

C

–

–

–

–

G

–

C

A

–

OP572522

Amino acid substitution

-

-

–

E33G

–

F71L

–

L93R

–

–

–

 
  1. The numbers refer to the positions of the nucleotides according to the reference sequence (GenBank accession number AY262282). Nucleotide positions in E6 are presented at the top of the table according to the reference sequence. Nucleotide changes are shown by the corresponding letters. Dashes indicate positions at which no variation was found. Amino acid sequence variations are shown at the bottom; amino acid changes whose codons contain more than one nucleotide replacement are marked with /. Asterisks represent the new SNPs detected in the studied HPV18 isolates
  2. ADC adenocarcinoma/adenosquamous carcinoma, CIN cervical intraepithelial neoplasia, LSIL low-grade squamous intraepithelial lesion, HSIL high-grade squamous intraepithelial lesion, SCC squamous cell carcinoma, HPV human papillomavirus