8GRU

Crystal structure of a constitutively active mutant of the alpha beta heterodimer of human IDH3 in complex with ICT, NAD and Ca

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Human IDH3 alpha subunit	polymer	339	36625.1	2	UniProt (P50213) Pfam (PF00180) In PDB	Homo sapiens (human)
2	B, D	Isoform A of Isocitrate dehydrogenase [NAD] subunit beta, mitochondrial	polymer	352	39152.0	2	UniProt (O43837-2) Pfam (PF00180) UniProt (by SIFTS) (O43837) In PDB	Homo sapiens (human)	Isocitric dehydrogenase subunit beta,NAD(+)-specific ICDH subunit beta
3	A, B, C, D	NICOTINAMIDE-ADENINE-DINUCLEOTIDE	non-polymer		663.4	4	Chemie (NAD)
4	A, C	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
5	A, C	ISOCITRIC ACID	non-polymer		192.1	2	Chemie (ICT)

Sequence modifications

A, C: 1 - 339 (UniProt: P50213)

PDB	External Database	Details
Ala 139	Gln 166	engineered mutation

B, D: 1 - 340 (UniProt: O43837-2)

PDB	External Database	Details
Glu 341	-	expression tag
Ile 342	-	expression tag
Cys 343	-	expression tag
Arg 344	-	expression tag
Arg 345	-	expression tag
Val 346	-	expression tag
Lys 347	-	expression tag
Asp 348	-	expression tag
Leu 349	-	expression tag
Asp 350	-	expression tag
Glu 351	-	expression tag
Asn 352	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	151554.3
Non-Polymers*	Number of molecules	8
	Total formula weight	3118.1
All*	Total formula weight	154672.4

*Water molecules are not included.