3B0H

Assimilatory nitrite reductase (Nii4) from tobbaco root

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)	Nitrite reductase	polymer	588	66218.6	2	UniProt (Q76KA9) Pfam (PF03460) Pfam (PF01077)	Nicotiana tabacum (tobacco)	NII4
2	C, H (A, B)	SIROHEME	non-polymer		916.7	2	Chemie (SRM)
3	D, I (A, B)	IRON/SULFUR CLUSTER	non-polymer		351.6	2	Chemie (SF4)
4	E, J (A, B)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
5	F, G, K, L (A, B)	CHLORIDE ION	non-polymer		35.5	4	Chemie (CL)
6	M, N (A, B)	water	water		18.0	497	Chemie (HOH)

Sequence modifications

A, B: -3 - 562 (UniProt: Q76KA9)

PDB	External Database	Details
Met -25	-	expression tag
Gly -24	-	expression tag
His -23	-	expression tag
His -22	-	expression tag
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
Ser -13	-	expression tag
Ser -12	-	expression tag
Gly -11	-	expression tag
His -10	-	expression tag
Ile -9	-	expression tag
Glu -8	-	expression tag
Gly -7	-	expression tag
Arg -6	-	expression tag
His -5	-	expression tag
Met -4	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	132437.3
Non-Polymers*	Number of molecules	10
	Total formula weight	2756.6
All*	Total formula weight	135193.9

*Water molecules are not included.