1KI1

Guanine Nucleotide Exchange Region of Intersectin in Complex with Cdc42

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	G25K GTP-binding protein, placental isoform	polymer	188	20942.1	2	UniProt (P60953) Pfam (PF00071)	Homo sapiens (human)	CDC42
2	B, D (B, D)	intersectin long form	polymer	352	40936.5	2	UniProt (Q15811) Pfam (PF00621) Pfam (PF16652)	Homo sapiens (human)
3	E, F (A, C)	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4	G, H, I, J (A, B, C, D)	water	water		18.0	181	Chemie (HOH)

Sequence modifications

A, C: 1 - 188 (UniProt: P60953)

PDB	External Database	Details
Ser 188	Cys 188	engineered mutation

B, D: 1229 - 1580 (UniProt: Q15811)

PDB	External Database	Details
-	Lys 1514	deletion

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	123757.2
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	123949.3

*Water molecules are not included.