Epitope´Â Ç×ü(Antibody)¿¡ ÀÇÇØ ÀνĵǴ ±¸Á¶ÀÎ Ç׿ø°áÁ¤ºÎÀÌ´Ù. Ç׿ø(Antigen) ºÐÀÚÀÇ ¾î´À À§Ä¡(Amino acid sequence)¿¡¼ Ç×ü¿Í °áÇÕÇÏ´ÂÁö ¾Ë¾Æº¸±â À§ÇØ ºÐÀÚ¸¦ ¿©·¯°¡Áö ¹æ¹ýÀ¸·Î ´ÜÆíÈ ÇÏ¿© Á¶»çÇÏ´Â ¹æ¹ýÀÌ´Ù. Epitope Mapping ºÐ¼®¹æ¹ýÀº Covalent labeling, Cross Link, Immuno-affinity peptide screening ¹ýÀ» ÅëÇØ Epitope À§Ä¡¸¦ È®ÀÎÇÑ´Ù. 3 °¡Áö °¢ÀÚ ´Ù¸¥ ºÐ¼®À» ÅëÇØ Epitope regionÀ» È®ÀÎÇÑ´Ù. Ç×ü ´Ü¹éÁúÀÇ Linear type °ú Conformational type ¸ðµÎ È®ÀÎ °¡´ÉÇÑ ¹æ¹ýÀÌ´Ù.
Epitope Mapping Process
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- Biosimilar
- Biobetter
- Antibody
- Protein-protein interaction
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1) DEPC labeling
2) Chemical cross link
3) Immuno-affinity peptide screening
Unbinding fraction |
Elution fraction (Area) |
sequence |
Frag# |
Res |
Area |
1st |
2nd |
3rd |
T14 |
180-188 |
1,291,000,000 |
810,600 |
8,799,000 |
11,950,000 |
TAAGGPVTSR |
T16 |
235-243 |
799,700,000 |
2,995,500 |
3,023,000 |
2,819,000 |
VDDPPQNGDNDR |
T21 |
281-288 |
66,900,000 |
1,425,000 |
1,232,000 |
1,367,000 |
WQCQLYQGER |