1FXL

CRYSTAL STRUCTURE OF HUD AND AU-RICH ELEMENT OF THE C-FOS RNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (B)	5'-R(P*UP*UP*UP*UP*AP*UP*UP*UP*U)-3'	polymer	9	2733.6	1
2	B (A)	PARANEOPLASTIC ENCEPHALOMYELITIS ANTIGEN HUD	polymer	167	18547.2	1	UniProt (P26378) Pfam (PF00076)	Homo sapiens (human)	HUD, HU-ANTIGEN D
3	C, D (B, A)	water	water		18.0	219	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	21280.8
All*	Total formula weight	21280.8

*Water molecules are not included.