4KRZ

Apo crystal structure of pyruvate kinase (PYK) from Trypanosoma cruzi

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)	Pyruvate kinase	polymer	519	56847.1	2	UniProt (Q4D9Z4) Pfam (PF00224) Pfam (PF02887)	Trypanosoma cruzi
2	C, E (A, B)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
3	D, F (A, B)	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
4	G, H (A, B)	water	water		18.0	451	Chemie (HOH)

Sequence modifications

A, B: 1 - 499 (UniProt: Q4D9Z4)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	113694.1
Non-Polymers*	Number of molecules	4
	Total formula weight	262.4
All*	Total formula weight	113956.5

*Water molecules are not included.