3L31

Crystal structure of the CBS and DRTGG domains of the regulatory region of Clostridium perfringens pyrophosphatase complexed with the inhibitor, AMP

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)	Probable manganase-dependent inorganic pyrophosphatase	polymer	252	28040.1	2	UniProt (Q8XIQ9) Pfam (PF01368) Pfam (PF00571) Pfam (PF07085)	Clostridium perfringens
2	C, D (A, B)	ADENOSINE MONOPHOSPHATE	non-polymer		347.2	2	Chemie (AMP)
3	E, F (A, B)	water	water		18.0	97	Chemie (HOH)

Sequence modifications

A, B: 66 - 306 (UniProt: Q8XIQ9)

PDB	External Database	Details
Met 65	-	initiating methionine
Leu 307	-	expression tag
Glu 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag
His 313	-	expression tag
His 314	-	expression tag
His 315	-	expression tag
His 316	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56080.3
Non-Polymers*	Number of molecules	2
	Total formula weight	694.4
All*	Total formula weight	56774.7

*Water molecules are not included.