5I7J

Crystal Structure of Human SPLUNC1 Disulfide Mutant M3 (I76C, V214C)

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)	BPI fold-containing family A member 1	polymer	240	24953.3	2	UniProt (Q9NP55) Pfam (PF01273)	Homo sapiens (Human)	Lung-specific protein X,Nasopharyngeal carcinoma-related protein,Palate lung and nasal epithelium clone protein,Secretory protein in upper respiratory tracts,Short PLUNC1,SPLUNC1,Tracheal epithelium-enriched protein,Von Ebner protein Hl
2	C, D (A, B)	water	water		18.0	13	Chemie (HOH)

Sequence modifications

A, B: 19 - 256 (UniProt: Q9NP55)

PDB	External Database	Details
Ser 17	-	expression tag
Asn 18	-	expression tag
Cys 76	Ile 76	engineered mutation
Cys 214	Val 214	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	49906.6
All*	Total formula weight	49906.6

*Water molecules are not included.