3WWT

Crystal Structure of the Y3:STAT1ND complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Signal transducer and activator of transcription 1-alpha/beta	polymer	139	17156.1	1	UniProt (P42224) Pfam (PF02865) In PDB	Homo sapiens (human)	Transcription factor ISGF-3 components p91/p84
2	B	C' protein	polymer	119	14556.0	1	UniProt (P04862) Pfam (PF01692) In PDB	Sendai virus (Z)
3	B	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4		water	water		18.0	163	Chemie (HOH)

Sequence modifications

A: 1 - 126 (UniProt: P42224)

PDB	External Database	Details
Met -12	-	initiating methionine
Asn -11	-	expression tag
His -10	-	expression tag
Lys -9	-	expression tag
Val -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
His -1	-	expression tag
His 0	-	expression tag

B: 98 - 204 (UniProt: P04862)

PDB	External Database	Details
Met 86	-	initiating methionine
Asn 87	-	expression tag
His 88	-	expression tag
Lys 89	-	expression tag
Val 90	-	expression tag
His 91	-	expression tag
His 92	-	expression tag
His 93	-	expression tag
His 94	-	expression tag
His 95	-	expression tag
His 96	-	expression tag
His 97	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	31712.1
Non-Polymers*	Number of molecules	1
	Total formula weight	40.1
All*	Total formula weight	31752.2

*Water molecules are not included.