2026-01-24_00000235|ligand|9RM3

Crystal structure of human CD22 Ig domains 1-3 in complex with modified sialoside 17; X-ray diffraction 2.86Å
Protein #1 324 residues (93% resolved)

ETGDSSKWVFEHPETLYAWEGACVWIPCTYRALDGDLESFILFHNPEYNKATSKFDGTRLYESTKDGKVPSEQKRVQFLGDKNKNCTLSIHPVHLADSGQLGLRMESKTEKWMERIHLAVSERPFPPHIQLPPEIQESQEVTLTCLLAFSCYGYPIQLQWLLEGVPMRQAAVTSTSLTIKSVFTRSELKFSPQWSHHGKIVTCQLQDADGKFLSADTVQLNVKHTPKLEIKVTPSDAIVREGDSVTMTCEVSSSNPEYTTVSWLKDGTSLKKQNTFTLNLREVTKDQSGKYCCQVSNDVGPGRSEEVFLQVQYAGGTKHHHHHH

ETGDSSKWVFEHPETLYAWEGACVWIPCTYRALDGDLESFILFHNPEYNKATSKFDGTRLYESTKDGKVPSEQKRVQFLGDKNKNCTLSIHPVHLADSGQLGLRMESKTEKWMERIHLAVSERPFPPHIQLPPEIQESQEVTLTCLLAFSCYGYPIQLQWLLEGVPMRQAAVTSTSLTIKSVFTRSELKFSPQWSHHGKIVTCQLQDADGKFLSADTVQLNVKHTPKLEIKVTPSDAIVREGDSVTMTCEVSSSNPEYTTVSWLKDGTSLKKQNTFTLNLREVTKDQSGKYCCQVSNDVGPGRSEEVFLQVQYAGGTKHHHHHH
Non polymer #2 A1JJP

InChI=1S/C40H56N4O20/c1-18(46)43-27-23(48)14-40(39(56)57,64-35(27)29(50)24(49)15-42-36(55)20-7-6-10-22(13-20)60-21-8-4-3-5-9-21)59-17-26-30(51)32(53)33(54)38(62-26)63-34-25(16-45)61-37(58-12-11-41)28(31(34)52)44-19(2)47/h3-10,13,23-35,37-38,45,48-54H,11-12,14-17,41H2,1-2H3,(H,42,55)(H,43,46)(H,44,47)(H,56,57)/t23-,24+,25+,26+,27+,28+,29+,30-,31+,32-,33+,34+,35+,37+,38-,40+/m0/s1

CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CNC(=O)c2cccc(c2)Oc3ccccc3)O)O)(C(=O)O)OC[C@@H]4[C@@H]([C@@H]([C@H]([C@@H](O4)O[C@@H]5[C@H](O[C@H]([C@@H]([C@H]5O)NC(=O)C)OCCN)CO)O)O)O)O
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Reference