4QA7

Crystal structure of H334R/Y306F HDAC8 in complex with a tetrapeptide substrate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Histone deacetylase 8	polymer	389	43235.0	1	UniProt (Q9BY41) Pfam (PF00850)	Homo sapiens (human)	HD8
2	B (B)	tetrapeptide substrate	polymer	5	679.8	1
3	C (A)	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
4	D, E (A)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
5	F (B)	7-AMINO-4-METHYL-CHROMEN-2-ONE	non-polymer		175.2	1	Chemie (MCM)
6	G (B)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
7	H, I (A, B)	water	water		18.0	49	Chemie (HOH)

Sequence modifications

A: 1 - 377 (UniProt: Q9BY41)

PDB	External Database	Details
Phe 306	Tyr 306	engineered mutation
Arg 334	His 334	engineered mutation
Ile 378	-	expression tag
Glu 379	-	expression tag
Gly 380	-	expression tag
Arg 381	-	expression tag
Gly 382	-	expression tag
Ser 383	-	expression tag
His 384	-	expression tag
His 385	-	expression tag
His 386	-	expression tag
His 387	-	expression tag
His 388	-	expression tag
His 389	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	43914.9
Non-Polymers*	Number of molecules	5
	Total formula weight	410.9
All*	Total formula weight	44325.7

*Water molecules are not included.