2QTJ

Solution structure of human dimeric immunoglobulin A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	L, M, N, O	Kappa light chain IgA1	polymer	214	23216.8	4		Homo sapiens (human)
2	A, B, C, D	Ig alpha-1 chain C region	polymer	475	51068.4	4	UniProt (P01876) Pfam (PF07686) Pfam (PF07654) UniProt (by SIFTS) (Q6MZW0) In PDB	Homo sapiens (human)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	297140.6
All*	Total formula weight	297140.6

*Water molecules are not included.