2026-01-10_00000371|ligand|9P4E

Crystal Structure of Engineered glutamine binding protein and a Gd-DOTA ligand - no GLN bound; X-ray diffraction 2.02Å
Protein #1 229 residues (98% resolved)

SNAADKKLVVATDTAFVPFEFKQGDIYVGFDVDLWAAIAKELKLDYELKPMDFSGIIPALQTKNVDLALAGITICDERKKAIDFSDGYYKSGLLVMVKANNNDVKSVKDLDGKVVAVKSGTGSVDYAKANIKTKDLRQFPNIDNAYMELGTNRADAVLHDTPNILYFIKTAGNGQFKAVGDSLEAQQYGIAFPKGSDELRDKVNGALKTLRENGTYNEIYKKWFGTEPK

SNAADKKLVVATDTAFVPFEFKQGDIYVGFDVDLWAAIAKELKLDYELKPMDFSGIIPALQTKNVDLALAGITICDERKKAIDFSDGYYKSGLLVMVKANNNDVKSVKDLDGKVVAVKSGTGSVDYAKANIKTKDLRQFPNIDNAYMELGTNRADAVLHDTPNILYFIKTAGNGQFKAVGDSLEAQQYGIAFPKGSDELRDKVNGALKTLRENGTYNEIYKKWFGTEPK
Non polymer #2 A1C21

InChI=1S/C22H38N6O10/c29-17(1-2-19(31)32)23-3-4-24-18(30)13-25-5-7-26(14-20(33)34)9-11-28(16-22(37)38)12-10-27(8-6-25)15-21(35)36/h1-16H2,(H,23,29)(H,24,30)(H,31,32)(H,33,34)(H,35,36)(H,37,38)

C1CN(CCN(CCN(CCN1CC(=O)NCCNC(=O)CCC(=O)O)CC(=O)O)CC(=O)O)CC(=O)O
Non polymer #3 ACT

InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)/p-1

CC(=O)[O-]
Non polymer #4 EDO

InChI=1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

C(CO)O
Non polymer #5 GD3

InChI=1S/Gd/q+3

[Gd+3]
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Reference