7RRP

Apoferritin structure at 1.27 angstrom resolution determined from a 300 kV Titan Krios G3i electron microscope with Falcon4 detector

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, E... (A, B, C, D, E...)	Ferritin heavy chain	polymer	172	20116.5	24	UniProt (P02794) Pfam (PF00210)	Homo sapiens (Human)	Ferritin H subunit,Cell proliferation-inducing gene 15 protein
2	AA, AB, AC, AD, AE... (A, C, E, G, I...)	ZINC ION	non-polymer		65.4	206	Chemie (ZN)
3	AF, AI, BE, BI, BK... (K, R, I, W, G...)	SODIUM ION	non-polymer		23.0	72	Chemie (NA)
4	AL, BL, CL, DL, EL... (K, L, M, N, O...)	water	water		18.0	2496	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	24
	Total formula weight	482797.1
Non-Polymers*	Number of molecules	278
	Total formula weight	15129.5
All*	Total formula weight	497926.7

*Water molecules are not included.