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Table 3 Influenza virus tetramer staining

From: Identification of swine influenza virus epitopes and analysis of multiple specificities expressed by cytotoxic T cell subsets

Animal ID/SwIV strain

Tetramer SwIV peptide

Peptide substituted from immunization strain

Frequency of tetramer (APC + BV421+) cells

(Tetramer + cells subtracted negative control)

 

ASYGAGAGY

Negative control

0.80 (0.00)

1/

CTELKLSDY

No

1.70 (0.90)

1

GTEKLTITY

No

1.90 (1.10)

SSSFSFGGF

No

1.70 (0.90)

YVFVGTSRY

No

1.60 (0.80)

 

ASYGAGAGY

Negative control

0.60 (0.00)

2/

CTELKLSDY

No

1.70 (1.10)

3

GTEKLTITY

No

1.50 (0.90)

SSSFSFGGF

No

1.40 (0.80)

YVFVGTSRY

No

1.50 (0.90)

 

ASYGAGAGY

Negative control

1.20 (0.00)

CTELKLSDY

No

6.30 (5.10)

4/

GTEKLTITY

No

6.50 (5.30)

3

SSSFSFGGF

No

3.90 (2.70)

YVFVGTSRY

No

5.80 (4.60)

 

ASYGAGAGY

Negative control

2.60 (0.00)

CTELKLSDY

Yes

5.80 (3.20*)

6/

GTEKLTITY

No

5.80 (3.20)

3

SSSFSFGGF

No

4.90 (2.30)

YVFVGTSRY

Yes

5.90 (3.30*)

 

ASYGAGAGY

Negative control

0.90 (0.00)

CTELKLSDY

Yes

3.00 (2.10*)

8/

GTEKLTITY

No

2.40 (1.50)

4

SSSFSFGGF

No

1.90 (1.00)

YVFVGTSRY

Yes

2.70 (1.80*)

 

ASYGAGAGY

Negative control

1.10 (0.00)

CTELKLSDY

Yes

2.80 (1.70*)

16/

GTEKLTITY

No

2.50 (1.40)

5

SSSFSFGGF

No

2.30 (1.20)

YVFVGTSRY

Yes

2.70 (1.60*)

  1. Tetramer staining frequencies. Percentile numbers in bold show specific tetramer staining post background subtraction. The relative background staining has been defined for each animal by a negative control tetramer (ASYGAGAGY). Italic percentile numbers indicate non-specific staining. Percentages marked by an asterix (*) indentify positive staining by influenza peptides which are sequence substituted compared to the respective immunization strains.