4D79

Crystal structure of E. coli tRNA N6-threonylcarbamoyladenosine dehydratase, TcdA, in complex with ATP at 1.768 Angstroem resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	TRNA THREONYLCARBAMOYLADENOSINE DEHYDRATASE	polymer	276	29667.2	4	UniProt (Q46927) Pfam (PF00899)	ESCHERICHIA COLI	T(6)A37 DEHYDRATASE, SULFUR ACCEPTOR PROTEIN
2	E, I, N, R (A, B, C, D)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
3	F, K, O, T (A, B, C, D)	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	4	Chemie (ATP)
4	G, H, L, M, P... (A, B, C, D)	GLYCEROL	non-polymer		92.1	7	Chemie (GOL)
5	J, S (B, D)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
6	V, W, X, Y (A, B, C, D)	water	water		18.0	511	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 268 (UniProt: Q46927)

PDB	External Database	Details
Leu 269	-	expression tag
Glu 270	-	expression tag
His 271	-	expression tag
His 272	-	expression tag
His 273	-	expression tag
His 274	-	expression tag
His 275	-	expression tag
His 276	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	118668.7
Non-Polymers*	Number of molecules	17
	Total formula weight	2875.8
All*	Total formula weight	121544.4

*Water molecules are not included.