7DPD

Human MCM9 N-terminal domain

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)	DNA helicase MCM9	polymer	291	33073.6	2	UniProt (Q9NXL9) Pfam (PF17207)	Homo sapiens (Human)	hMCM9,Mini-chromosome maintenance deficient domain-containing protein 1,Minichromosome maintenance 9
2	C, E (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	D (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4	F, G (A, B)	water	water		18.0	217	Chemie (HOH)

Sequence modifications

A, B: 1 - 277 (UniProt: Q9NXL9)

PDB	External Database	Details
Met -13	-	initiating methionine
Gly -12	-	expression tag
Ser -11	-	expression tag
Ser -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Ser -3	-	expression tag
Asn -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag
Pro 168	Arg 168	engineered mutation
Ala 257	Cys 257	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	66147.2
Non-Polymers*	Number of molecules	3
	Total formula weight	153.8
All*	Total formula weight	66301.0

*Water molecules are not included.