Anti-BTLA antibody

An isolated anti-BTLA antibody or an antigen-binding fragment thereof wherein the amino acid sequences of the LCDR1, LCDR2 and LCDR3 of the light chain CDR and the amino acid sequences of the HCDR1, HCDR2 and HCDR3 of the heavy chain CDR of the isolated antibody or the antigen-binding fragment thereof are selected from any one of the following groups I-IX:

• Group
• LCDR1
• LCDR2
• LCDR3
• I
• SEQ ID NO:
• 7
• SEQ ID NO:
• 8
• SEQ ID NO:
• 9
• II
• SEQ ID NO:
• 10
• SEQ ID NO:
• 11
• SEQ ID NO:
• 12
• III
• SEQ ID NO:
• 16
• SEQ ID NO:
• 17
• SEQ ID NO:
• 18
• IV
• SEQ ID NO:
• 22
• SEQ ID NO:
• 23
• SEQ ID NO:
• 24
• V
• SEQ ID NO:
• 22
• SEQ ID NO:
• 23
• SEQ ID NO:
• 24
• VI
• SEQ ID NO:
• 31
• SEQ ID NO:
• 32
• SEQ ID NO:
• 33
• VII
• SEQ ID NO:
• 7
• SEQ ID NO:
• 8
• SEQ ID NO:
• 9
• VIII
• SEQ ID NO:
• 10
• SEQ ID NO:
• 11
• SEQ ID NO:
• 12
• IX
• SEQ ID NO:
• 10
• SEQ ID NO:
• 11
• SEQ ID NO:
• 12
• Group
• HCDR1
• HCDR2
• HCDR3
• I
• SEQ ID NO:
• 1
• SEQ ID NO:
• 2
• SEQ ID NO:
• 3
• II
• SEQ ID NO:
• 4
• SEQ ID NO:
• 5
• SEQ ID NO:
• 6
• III
• SEQ ID NO:
• 13
• SEQ ID NO:
• 14
• SEQ ID NO:
• 15
• IV
• SEQ ID NO:
• 19
• SEQ ID NO:
• 20
• SEQ ID NO:
• 21
• V
• SEQ ID NO:
• 25
• SEQ ID NO:
• 26
• SEQ ID NO:
• 27
• VI
• SEQ ID NO:
• 28
• SEQ ID NO:
• 29
• SEQ ID NO:
• 30
• VII
• SEQ ID NO:
• 4
• SEQ ID NO:
• 5
• SEQ ID NO:
• 6
• VIII
• SEQ ID NO:
• 1
• SEQ ID NO:
• 2
• SEQ ID NO:
• 3
• IX
• SEQ ID NO:
• 13
• SEQ ID NO:
• 14
• SEQ ID NO:
• 15.