1UDR

CHEY MUTANT WITH LYS 91 REPLACED BY ASP, LYS 92 REPLACED BY ALA, ILE 96 REPLACED BY LYS AND ALA 98 REPLACED BY LEU (STABILIZING MUTATIONS IN HELIX 4)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	CHEY PROTEIN	polymer	129	14184.4	4	UniProt (P06143) Pfam (PF00072) UniProt (by SIFTS) (P0AE67) In PDB	Escherichia coli
2		water	water		18.0	224	Chemie (HOH)

Sequence modifications

A, B, C, D: 3 - 129 (UniProt: P06143)

PDB	External Database	Details
Asp 91	Lys 90	engineered mutation
Ala 92	Lys 91	engineered mutation
Lys 96	Ile 95	engineered mutation
Leu 98	Ala 97	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	56737.4
All*	Total formula weight	56737.4

*Water molecules are not included.