1Q95

Aspartate Transcarbamylase (ATCase) of Escherichia coli: A New Crystalline R State Bound to PALA, or to Product Analogues Phosphate and Citrate

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, E... (A, B, C, D, E...)	Aspartate carbamoyltransferase catalytic chain	polymer	310	34337.1	6	UniProt (P0A786) Pfam (PF02729) Pfam (PF00185)	Escherichia coli	Aspartate transcarbamylase, ATCase
2	G, H, I, J, K... (G, H, I, J, K...)	Aspartate carbamoyltransferase regulatory chain	polymer	153	17143.6	6	UniProt (P0A7F3) Pfam (PF01948) Pfam (PF02748)	Escherichia coli
3	M, N, O, P, Q... (A, B, C, D, E...)	N-(PHOSPHONACETYL)-L-ASPARTIC ACID	non-polymer		255.1	6	Chemie (PAL)
4	S, T, U, V, W... (G, H, I, J, K...)	ZINC ION	non-polymer		65.4	6	Chemie (ZN)
5	AA, BA, CA, DA, EA... (C, D, E, F, G...)	water	water		18.0	822	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	308884.4
Non-Polymers*	Number of molecules	12
	Total formula weight	1923.2
All*	Total formula weight	310807.5

*Water molecules are not included.