8PPM

IL-12Rb1 neutralizing Fab4, crystal kappa variant

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (H)	Fab4 heavy chain	polymer	231	24786.6	1		Homo sapiens x Mus musculus hybrid cell line
2	B (L)	Fab4 Light chain, crystal kappa variant	polymer	212	23239.7	1		Homo sapiens x Mus musculus hybrid cell line
3	C, D (H)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
4	E, F (H, L)	water	water		18.0	185	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	48026.3
Non-Polymers*	Number of molecules	2
	Total formula weight	78.2
All*	Total formula weight	48104.5

*Water molecules are not included.