2024-03-30_00000048|ligand|8K1T

Potassium transporter KtrAB from Bacillus subtilis in ATP-bound state with addition of MgCl2; Electron microscopy 2.48Å
Protein #1 222 residues (94% resolved)

MGRIKNKQFAVIGLGRFGGSICKELHRMGHEVLAVDINEEKVNAYASYATHAVIANATEENELLSLGIRNFEYVIVAIGANIQASTLTTLLLKELDIPNIWVKAQNYYHHKVLEKIGADRIIHPEKDMGVKIAQSLSDENVLNYIDLSDEYSIVELLATRKLDSKSIIDLNVRAKYGCTILAIKHHGDICLSPAPEDIIREQDCLVIMGHKKDIKRFENEGM

MGRIKNKQFAVIGLGRFGGSICKELHRMGHEVLAVDINEEKVNAYASYATHAVIANATEENELLSLGIRNFEYVIVAIGANIQASTLTTLLLKELDIPNIWVKAQNYYHHKVLEKIGADRIIHPEKDMGVKIAQSLSDENVLNYIDLSDEYSIVELLATRKLDSKSIIDLNVRAKYGCTILAIKHHGDICLSPAPEDIIREQDCLVIMGHKKDIKRFENEGM
Protein #2 445 residues (97% resolved)

MTLQKDKVIKWVRFTPPQVLAIGFFLTIIIGAVLLMLPISTTKPLSWIDALFTAASATTVTGLAVVDTGTQFTVFGQTVIMGLIQIGGLGFMTFAVLIVMILGKKIGLKERMLVQEALNQPTIGGVIGLVKVLFLFSISIELIAALILSIRLVPQYGWSSGLFASLFHAISAFNNAGFSLWPDNLMSYVGDPTVNLVITFLFITGGIGFTVLFDVMKNRRFKTFSLHTKLMLTGTLMLNAIAMLTVFILEYSNPGTLGHLHIVDKLWASYFQAVTPRTAGFNSLDFGSMREGTIVFTLLLMFIGAGSASTASGIKLTTFIVILTSVIAYLRGKKETVIFRRSIKYPIIIKALAVSVTSLFIVFLGIFALTITEQAPFLQIVFETFSAFGTVGLTMGLTPELTTAGKCIIIVIMFIGRIGPLTFVFSFAKTEQSNIRYPDGEVFTG

MTLQKDKVIKWVRFTPPQVLAIGFFLTIIIGAVLLMLPISTTKPLSWIDALFTAASATTVTGLAVVDTGTQFTVFGQTVIMGLIQIGGLGFMTFAVLIVMILGKKIGLKERMLVQEALNQPTIGGVIGLVKVLFLFSISIELIAALILSIRLVPQYGWSSGLFASLFHAISAFNNAGFSLWPDNLMSYVGDPTVNLVITFLFITGGIGFTVLFDVMKNRRFKTFSLHTKLMLTGTLMLNAIAMLTVFILEYSNPGTLGHLHIVDKLWASYFQAVTPRTAGFNSLDFGSMREGTIVFTLLLMFIGAGSASTASGIKLTTFIVILTSVIAYLRGKKETVIFRRSIKYPIIIKALAVSVTSLFIVFLGIFALTITEQAPFLQIVFETFSAFGTVGLTMGLTPELTTAGKCIIIVIMFIGRIGPLTFVFSFAKTEQSNIRYPDGEVFTG
Non polymer #3 ATP

InChI=1S/C10H16N5O13P3/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(17)6(16)4(26-10)1-25-30(21,22)28-31(23,24)27-29(18,19)20/h2-4,6-7,10,16-17H,1H2,(H,21,22)(H,23,24)(H2,11,12,13)(H2,18,19,20)/t4-,6-,7-,10-/m1/s1

c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@@](=O)(O)O[P@](=O)(O)OP(=O)(O)O)O)O)N
Non polymer #4 K

InChI=1S/K/q+1

[K+]
Non polymer #5 NA

InChI=1S/Na/q+1

[Na+]
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Reference