4ELP

Ferric binding protein in apo form 2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Iron ABC transporter, periplasmic iron-binding protein	polymer	336	37022.7	4	UniProt (Q5SHV2) Pfam (PF13416)	Thermus thermophilus	Ferric binding protein A
2	E, F, G, H (A, B, C, D)	CARBONATE ION	non-polymer		60.0	4	Chemie (CO3)
3	I, J, K, L (A, B, C, D)	water	water		18.0	382	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 330 (UniProt: Q5SHV2)

PDB	External Database	Details
His 331	-	expression tag
His 332	-	expression tag
His 333	-	expression tag
His 334	-	expression tag
His 335	-	expression tag
His 336	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	148090.8
Non-Polymers*	Number of molecules	4
	Total formula weight	240.0
All*	Total formula weight	148330.9

*Water molecules are not included.