5TSP

Crystal structure of the catalytic domain of Clostridium perfringens neuraminidase (NanI) in complex with a CHES

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Sialidase	polymer	461	51610.2	2	UniProt (A0A0H2YQR1) Pfam (PF13859) In PDB	Clostridium perfringens ATCC 13124	Neuraminidase, Nanl
2	A, B	2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID	non-polymer		207.3	2	Chemie (NHE)
3	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	1832	Chemie (HOH)

Sequence modifications

A, B: 243 - 694 (UniProt: A0A0H2YQR1)

PDB	External Database	Details
Met 242	-	expression tag
Leu 695	-	expression tag
Glu 696	-	expression tag
His 697	-	expression tag
His 698	-	expression tag
His 699	-	expression tag
His 700	-	expression tag
His 701	-	expression tag
His 702	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	103220.4
Non-Polymers*	Number of molecules	4
	Total formula weight	494.7
All*	Total formula weight	103715.1

*Water molecules are not included.