1UNU

Structure Based Engineering of Internal Molecular Surfaces Of Four Helix Bundles

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)	GENERAL CONTROL PROTEIN GCN4	polymer	34	4046.8	2	UniProt (P03069) Pfam (PF07716)	SACCHAROMYCES CEREVISIAE	GCN4 LEUCINE ZIPPER, AMINO ACID BIOSYNTHESIS REGULATORY PROTEIN, PLI
2	C (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
3	D, E (A, B)	water	water		18.0	28	Chemie (HOH)

Sequence modifications

A, B: -1 - -1 (PDB: 1UNU)
A, B: 1 - 33 (UniProt: P03069)

PDB	External Database	Details
Ile 5	Leu 253	conflict
Ser 9	Val 257	engineered mutation
Ile 12	Leu 260	conflict
Leu 16	Asn 264	conflict
Ile 19	Leu 267	conflict
Leu 23	Val 271	conflict
Ile 26	Leu 274	conflict
Leu 30	Val 278	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	8093.5
Non-Polymers*	Number of molecules	1
	Total formula weight	35.5
All*	Total formula weight	8129.0

*Water molecules are not included.