6MAA

WFIKKN2 Follistatin Domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	WAP, Kazal, immunoglobulin, Kunitz and NTR domain-containing protein 2	polymer	90	10074.4	1	UniProt (Q7TQN3)	Mus musculus (Mouse)	Growth and differentiation factor-associated serum protein 1,mGASP-1
2	B, C, D, E (A)	NITRATE ION	non-polymer		62.0	4	Chemie (NO3)
3	F (A)	water	water		18.0	156	Chemie (HOH)

Sequence modifications

A: 10 - 78 (UniProt: Q7TQN3)

PDB	External Database	Details
Met -11	-	initiating methionine
Gly -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
Ser -1	-	expression tag
Ser 0	-	expression tag
Gly 1	-	expression tag
Leu 2	-	SEE REMARK 999
Val 3	-	SEE REMARK 999
Pro 4	-	SEE REMARK 999
Arg 5	-	SEE REMARK 999
Gly 6	-	SEE REMARK 999
Ser 7	-	SEE REMARK 999
His 8	-	SEE REMARK 999
Met 9	-	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	10074.4
Non-Polymers*	Number of molecules	4
	Total formula weight	248.0
All*	Total formula weight	10322.4

*Water molecules are not included.