3Q4Z

Structure of unphosphorylated PAK1 kinase domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Serine/threonine-protein kinase PAK 1	polymer	306	34514.7	2	UniProt (Q13153) Pfam (PF00069) In PDB	Homo sapiens (human)	Alpha-PAK, p21-activated kinase 1, PAK-1, p65-PAK
2	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3	A	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER	non-polymer		506.2	1	Chemie (ANP)
4		water	water		18.0	232	Chemie (HOH)

Sequence modifications

A, B: 248 - 545 (UniProt: Q13153)

PDB	External Database	Details
Ile 259	Ser 259	engineered mutation
Arg 299	Lys 299	engineered mutation
Asn 389	Asp 389	engineered mutation
Ile 516	Leu 516	engineered mutation
Leu 546	-	expression tag
Glu 547	-	expression tag
His 548	-	expression tag
His 549	-	expression tag
His 550	-	expression tag
His 551	-	expression tag
His 552	-	expression tag
His 553	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	69029.4
Non-Polymers*	Number of molecules	2
	Total formula weight	530.5
All*	Total formula weight	69559.9

*Water molecules are not included.