2H2R

Crystal structure of the human CD23 Lectin domain, apo form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Low affinity immunoglobulin epsilon Fc receptor (Lymphocyte IgE receptor) (Fc-epsilon-RII)(Immunoglobulin E-binding factor) (CD23 antigen)	polymer	175	19515.7	2	UniProt (P06734) Pfam (PF00059)	Homo sapiens (human)
2	C, D (A, B)	water	water		18.0	360	Chemie (HOH)

Sequence modifications

A, B: 150 - 321 (UniProt: P06734)

PDB	External Database	Details
Ser 147	-	cloning artifact
Pro 148	-	cloning artifact
Gly 149	-	cloning artifact
Arg 213	His 213	engineered mutation
Ser 256	Gly 256	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	39031.4
All*	Total formula weight	39031.4

*Water molecules are not included.