3L4R

Crystal structure of the dog lipocalin allergen Can f 2 and implications for cross-reactivity to the cat allergen Fel d 4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Minor allergen Can f 2	polymer	170	19473.6	1	UniProt (O18874) Pfam (PF00061)	Canis familiaris (dogs)	Allergen Dog 2
2	B (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
3	C (A)	water	water		18.0	127	Chemie (HOH)

Sequence modifications

A: 2 - 162 (UniProt: O18874)

PDB	External Database	Details
Met 1	-	initiating methionine
Leu 163	-	expression tag
Glu 164	-	expression tag
His 165	-	expression tag
His 166	-	expression tag
His 167	-	expression tag
His 168	-	expression tag
His 169	-	expression tag
His 170	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	19473.6
Non-Polymers*	Number of molecules	1
	Total formula weight	92.1
All*	Total formula weight	19565.7

*Water molecules are not included.