2025-12-06_00000266|ligand|9ROB

Crystal structure of human CD22 Ig domains 1-3 in complex with modified sialoside 1B; X-ray diffraction 2.70Å
Protein #1 324 residues (93% resolved)

ETGDSSKWVFEHPETLYAWEGACVWIPCTYRALDGDLESFILFHNPEYNKATSKFDGTRLYESTKDGKVPSEQKRVQFLGDKNKNCTLSIHPVHLADSGQLGLRMESKTEKWMERIHLAVSERPFPPHIQLPPEIQESQEVTLTCLLAFSCYGYPIQLQWLLEGVPMRQAAVTSTSLTIKSVFTRSELKFSPQWSHHGKIVTCQLQDADGKFLSADTVQLNVKHTPKLEIKVTPSDAIVREGDSVTMTCEVSSSNPEYTTVSWLKDGTSLKKQNTFTLNLREVTKDQSGKYCCQVSNDVGPGRSEEVFLQVQYAGGTKHHHHHH

ETGDSSKWVFEHPETLYAWEGACVWIPCTYRALDGDLESFILFHNPEYNKATSKFDGTRLYESTKDGKVPSEQKRVQFLGDKNKNCTLSIHPVHLADSGQLGLRMESKTEKWMERIHLAVSERPFPPHIQLPPEIQESQEVTLTCLLAFSCYGYPIQLQWLLEGVPMRQAAVTSTSLTIKSVFTRSELKFSPQWSHHGKIVTCQLQDADGKFLSADTVQLNVKHTPKLEIKVTPSDAIVREGDSVTMTCEVSSSNPEYTTVSWLKDGTSLKKQNTFTLNLREVTKDQSGKYCCQVSNDVGPGRSEEVFLQVQYAGGTKHHHHHH
Non polymer #2 A1JJN

InChI=1S/C31H32Cl2N2O9/c1-17(36)35-26-23(37)14-31(30(41)42,43-16-21-8-5-9-22(32)25(21)33)44-28(26)27(39)24(38)15-34-29(40)20-12-10-19(11-13-20)18-6-3-2-4-7-18/h2-13,23-24,26-28,37-39H,14-16H2,1H3,(H,34,40)(H,35,36)(H,41,42)/t23-,24+,26+,27+,28+,31+/m0/s1

CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CNC(=O)c2ccc(cc2)c3ccccc3)O)O)(C(=O)O)OCc4cccc(c4Cl)Cl)O
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Reference