5F7K

Blood group antigen binding adhesin BabA of Helicobacter pylori strain 17875 in complex with Nanobody Nb-ER19

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, B)	Adhesin binding fucosylated histo-blood group antigen	polymer	466	49369.2	2	UniProt (O52269) Pfam (PF18304)	Helicobacter pylori
2	B, D (C, D)	Nanobody Nb-ER19	polymer	120	13260.9	2		Lama glama (Llama)
3	E (A)	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
4	F (A)	1,2-ETHANEDIOL	non-polymer		62.1	1	Chemie (EDO)	Helicobacter pylori
5	G (C)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
6	H, I, J, K (A, C, B, D)	water	water		18.0	481	Chemie (HOH)

Sequence modifications

A, B: 25 - 460 (UniProt: O52269)

PDB	External Database	Details
Ala 3	-	expression tag
Ser 4	-	expression tag
Trp 5	-	expression tag
Ser 6	-	expression tag
His 7	-	expression tag
Pro 8	-	expression tag
Gln 9	-	expression tag
Phe 10	-	expression tag
Glu 11	-	expression tag
Lys 12	-	expression tag
Ser 13	-	expression tag
Gly 14	-	expression tag
Gly 15	-	expression tag
Gly 16	-	expression tag
Gly 17	-	expression tag
Gly 18	-	expression tag
Leu 19	-	expression tag
Val 20	-	expression tag
Pro 21	-	expression tag
Arg 22	-	expression tag
Gly 23	-	expression tag
Ser 24	-	expression tag
Gly 461	-	expression tag
Ser 462	-	expression tag
His 463	-	expression tag
His 464	-	expression tag
His 465	-	expression tag
His 466	-	expression tag
His 467	-	expression tag
His 468	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	125260.1
Non-Polymers*	Number of molecules	3
	Total formula weight	180.0
All*	Total formula weight	125440.1

*Water molecules are not included.