Structure of PDB 6uwi Chain i

Receptor sequence

>6uwii (length=643) Species: 1496 (Clostridioides difficile)

EDLDTDNDNIPDSYERNGYTIKDLIAVKWEDSFAEQGYKKYVSNYLESNT
AGDPYTDYEKASGSFDKAIKTEARDPLVAAYPIVGVGMEKLIISTNTVSR
ATTNSKTESNTAGVSVNVGYQNGFTANVTTNYSHTTDNSTAVQDSNGESW
NTGLSISAYINANVRYYNTGTAPMYKVTPTTNLVLDGDTLSTIKAQENQI
GNNLSPGDTYPKKGLSPLALNTMDQFSSRLIDQLKKLDAGKQIKLETTQV
SGNFGTKNSSGQIVTEGNSWSDYISQIDSISASIILDTENESYERRVTAK
NLQDPEDKTPELTIGEAIEKAFGATKKDGLLYFNDIPIDESCVELIFDDN
TANKIKDSLKTLSDKKIYNVKLERGMNILIKTPTYFTNFDDYNNYPSTWS
NVNTTNQDGLQGSANKLNGETKIKIPMSELKPYKRYVFSGYSKDPLTSNS
IIVKIKAKEEKTDYLVPEQGYTKFSYEFETTEKDSSNIEITLIGSGTTYL
DNLSITELNSTPEILDEPEVKIPTDQEIMDAHKIYFADLNFNPSTGNTYI
NGMYFAPTQTNKEALDYIQKYRVEATLQYSGFKDIGTKDKEMRNYLGDPN
QPKTNYVNLRSYFTGGENIMTYKKLRIYAITPDDRELLVLSVD

3D structure

• PDB: 6uwi Structure of the cell-binding component of theClostridium difficilebinary toxin reveals a di-heptamer macromolecular assembly.
• Chain: i
• Resolution: 3.7 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	CA	i	D222 D224 E231 N260 E263 D273	D6 D8 E15 N44 E47 D57
BS02	CA	i	D220 D222 D224 I226 E231	D4 D6 D8 I10 E15
BS03	CA	i	N621 D623 Q644 S646 D734	N388 D390 Q411 S413 D501
BS04	CA	i	D222 D224 E231 N260 Y261 E263 D273	D6 D8 E15 N44 Y45 E47 D57
BS05	CA	i	D220 D222 D224 I226 E231 Y261	D4 D6 D8 I10 E15 Y45
BS06	CA	i	N621 D623 Q644 D734	N388 D390 Q411 D501

Gene Ontology

Biological Process

• GO:0051260 protein homooligomerization

Cellular Component

• GO:0005576 extracellular region

External links

• PDB: RCSB:6uwi, PDBe:6uwi, PDBj:6uwi
• PDBsum: 6uwi
• PubMed: 31896582
• UniProt: O32739