3VE1

The 2.9 angstrom crystal structure of Transferrin binding protein B (TbpB) from serogroup B M982 Neisseria meningitidis in complex with human transferrin

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, C)	Transferrin-binding protein 2	polymer	658	71406.7	2	UniProt (Q09057) Pfam (PF17484) Pfam (PF01298) Pfam (PF17483)	Neisseria meningitidis serogroup B	TBP-2
2	B, D (B, D)	Serotransferrin	polymer	679	75286.4	2	UniProt (P02787) Pfam (PF00405)	Homo sapiens (human)	Transferrin, Beta-1 metal-binding globulin, Siderophilin
3	E, F, I, J, K... (A, B, C, D)	GLYCEROL	non-polymer		92.1	13	Chemie (GOL)
4	G, P (B, D)	CARBONATE ION	non-polymer		60.0	2	Chemie (CO3)
5	H, Q (B, D)	FE (III) ION	non-polymer		55.8	2	Chemie (FE)
6	V, W, X, Y (A, B, C, D)	water	water		18.0	203	Chemie (HOH)

Sequence modifications

A, C: 36 - 691 (UniProt: Q09057)

PDB	External Database	Details
Gly 34	-	expression tag
Ser 35	-	expression tag

B, D: 1 - 679 (UniProt: P02787)

PDB	External Database	Details
Asp 413	Asn 432	SEE REMARK 999
Val 429	Ile 448	SEE REMARK 999
Asp 611	Asn 630	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	293386.3
Non-Polymers*	Number of molecules	17
	Total formula weight	1428.9
All*	Total formula weight	294815.2

*Water molecules are not included.