1.-8. (canceled)
9. A method of screening for a candidate substance for either or both of the treatment and prevention of cancer or the inhibition of cancer cell growth, said method comprising the steps of:
(a) contacting a test substance with an SUV39H2 polypeptide or functional equivalent thereof;
(b) detecting the binding activity between the polypeptide or functional equivalent thereof and the test substance; and
(c) selecting the test substance that binds to the polypeptide or functional equivalent thereof.
10. A method of screening for a candidate substance for either or both of the treatment and prevention of cancer or the inhibition of cancer cell growth, said method comprising the steps of:
(a) contacting a test substance with a cell expressing the SUV39H2 gene; and
(b) selecting the test substance that reduces the expression level of the SUV39H2 gene in comparison with the expression level in the absence of the test substance.
11. A method of screening for a candidate substance for either or both of the treatment and prevention of cancer or the inhibition of cancer cell growth, said method comprising the steps of:
(a) contacting a test substance with an SUV39H2 polypeptide or functional equivalent thereof;
(b) detecting a biological activity of the polypeptide or functional equivalent thereof of step (a); and
(c) selecting the test substance that suppresses the biological activity of the polypeptide or functional equivalent thereof in comparison with the biological activity detected in the absence of the test substance.
12. The method of claim 11, wherein the biological activity is cell-proliferation promoting activity or methyltransferase activity.
13.-16. (canceled)
17. The method of claim 9, wherein the cancer is selected from the group consisting of lung cancer, cervical cancer, bladder cancer, esophageal cancer, osteosarcoma, prostate cancer and soft tissue tumor.
18.-29. (canceled)
30. The method of claim 10, wherein the cancer is selected from the group consisting of lung cancer, cervical cancer, bladder cancer, esophageal cancer, osteosarcoma, prostate cancer and soft tissue tumor.
31. The method of claim 11, wherein the cancer is selected from the group consisting of lung cancer, cervical cancer, bladder cancer, esophageal cancer, osteosarcoma, prostate cancer and soft tissue tumor.
32. The method of claim 12, wherein the cancer is selected from the group consisting of lung cancer, cervical cancer, bladder cancer, esophageal cancer, osteosarcoma, prostate cancer and soft tissue tumor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image display system comprising an image display apparatus for displaying an image based on content information having at least one link on a display screen and an operating device for operating displayed contents of the display screen of the image display apparatus, wherein:
the image display apparatus comprises:
control means for controlling a display state of the image based on the content information being displayed on the display screen; and
mode switching means for switching an operation mode of the control means between first and second modes, according to operation of the operating device, wherein,
in a state where part of the image based on the content information is displayed on the display screen of the image display apparatus, the control means scrolls the image on the display screen in the first mode and sequentially selects a link in the image fixed on the display screen in the second mode, according to operation of the operating device.
2. The image display system according to claim 1, wherein:
the operating device has first operating means for designating directions and second operating means for confirmation, wherein
the control means fixes the image determined by the second operating means on the display screen while scrolling the image in directions designated by the first operating means in the first mode, and sequentially selects a link existing in a direction designated by the first operating means in the image fixed on the display screen and displays an image based on content information corresponding to a link designated by the second operating means in the second mode.
3. The image display system according to claim 2, wherein
the mode switching means switches the operation mode of the control means from the first mode to the second mode according to operation of the second operating means in the first mode.
4. An image display apparatus for displaying an image based on content information having at least one link on a display screen, comprising:
control means for controlling a display state of the image based on the content information being displayed on the display screen; and.
mode switching means for switching an operation mode of the control means between first and second modes according to external operation, wherein,
in a situation where part of the image based on the content information is displayed on the display screen, the control means scrolls the image on the display screen in the first mode and sequentially selects a link in the image fixed on the display screen in the second mode, according to the external operation.
5. The image display apparatus according to claim 4, wherein
the control means fixes the image determined on the display screen while scrolling the image-in designated directions in the first mode, and sequentially selects a link existing in a designated direction in the image fixed on the display screen and displays an image based on content information corresponding to a link designated in the second mode.
6. The image display apparatus according to claim 5, wherein
the mode switching means switches the operation mode of the control means from the first mode to the second mode according to operation of the second operating means in the first mode.
7. An image display method for displaying an image based on content information having at least one link on a display screen, comprising:
switching an operation mode for controlling a display state of the image based on the content information being displayed on the display screen between first and second modes according to external operation, and
scrolling the image on the display screen in the first mode and sequentially selecting a link in the image fixed on the display screen in the second mode, according to the external operation in a situation where part of the image based on the content information is displayed on the display screen.
8. The image display method according to claim 7, wherein:
the image is scrolled in designated directions and the image determined is fixed on the display screen in the first mode; and
a link existing in a designated direction is sequentially selected in the image fixed on the display screen and an image based on content information corresponding to a link designated is displayed in the second mode.