7UCT

The Crystal Structure of Apo Domain-Swapped Dimer F57:H:H:H:H:H:H:R58 Mutant of HCRBPII with Histidine Insertion in the Hinge Loop Region at 2.5 Angstrom Resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Retinol-binding protein 2	polymer	139	16463.5	2	UniProt (P50120) Pfam (PF00061) In PDB	Homo sapiens (human)	Cellular retinol-binding protein II,CRBP-II
2		water	water		18.0	38	Chemie (HOH)

Sequence modifications

A, B: 1 - 139 (UniProt: P50120)

PDB	External Database	Details
Cys 28	Ala 29	engineered mutation
Cys 36	Leu 37	engineered mutation
Asp 51	Thr 52	engineered mutation
His 58	-	insertion
His 59	-	insertion
His 60	-	insertion
His 61	-	insertion
His 62	-	insertion
His 63	-	insertion
Lys 108	Glu 103	engineered mutation
Lys 114	Gln 109	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	32927.0
All*	Total formula weight	32927.0

*Water molecules are not included.