4N6M

Crystal structure of human cystatin E/M produced in LEXSY

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)	Cystatin-M	polymer	132	14923.9	2	UniProt (Q15828) Pfam (PF00031)	Homo sapiens (human)	Cystatin-6, Cystatin-E
2	C (B)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	D, E (A, B)	water	water		18.0	29	Chemie (HOH)

Sequence modifications

A, B: 4 - 124 (UniProt: Q15828)

PDB	External Database	Details
Ser 1	-	expression tag
Leu 2	-	expression tag
Glu 3	-	expression tag
Gly 125	-	expression tag
Thr 126	-	expression tag
His 127	-	expression tag
His 128	-	expression tag
His 129	-	expression tag
His 130	-	expression tag
His 131	-	expression tag
His 132	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	29847.8
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	29943.8

*Water molecules are not included.