9U8W

Crystal structure of KRAS-G12D/Q99L mutant in complex with GDP

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)	Isoform 2B of GTPase KRas	polymer	189	21589.2	2	UniProt (P01116) Pfam (PF00071)	Homo sapiens (human)	GTPase KRAS,K-Ras 2,Ki-Ras,c-K-ras,c-Ki-ras
2	C, E (A, B)	GUANOSINE-5'-DIPHOSPHATE	non-polymer		443.2	2	Chemie (GDP)
3	D, F (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG) PubChem (888)
4	G, H (A, B)	water	water		18.0	251	Chemie (HOH)

Sequence modifications

A, B: 1 - 169 (UniProt: P01116)

PDB	External Database	Details
Met -19	-	initiating methionine
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
Glu -6	-	expression tag
Asn -5	-	expression tag
Leu -4	-	expression tag
Tyr -3	-	expression tag
Phe -2	-	expression tag
Gln -1	-	expression tag
Gly 0	-	expression tag
Asp 12	Gly 12	engineered mutation
Leu 99	Gln 99	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	43178.4
Non-Polymers*	Number of molecules	4
	Total formula weight	935.0
All*	Total formula weight	44113.5

*Water molecules are not included.