4BQL

Crystal structure of archaeal actin

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	ACTIN/ACTIN FAMILY PROTEIN	polymer	455	50958.1	4	UniProt (A3MWN5) Pfam (PF00022) In PDB	PYROBACULUM CALIDIFONTIS	CRENACTIN
2	A, B, D	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	3	Chemie (ADP)
3	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)

Sequence modifications

A, B, C, D: 1 - 432 (UniProt: A3MWN5)

PDB	External Database	Details
Met -22	-	expression tag
Ala -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
Val -14	-	expression tag
Gly -13	-	expression tag
Thr -12	-	expression tag
Gly -11	-	expression tag
Ser -10	-	expression tag
Asn -9	-	expression tag
Asp -8	-	expression tag
Asp -7	-	expression tag
Asp -6	-	expression tag
Asp -5	-	expression tag
Lys -4	-	expression tag
Ser -3	-	expression tag
Pro -2	-	expression tag
Asp -1	-	expression tag
Pro 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	203832.3
Non-Polymers*	Number of molecules	4
	Total formula weight	1305.9
All*	Total formula weight	205138.2

*Water molecules are not included.