5ITC

2.2-Angstrom in meso crystal structure of Haloquadratum Walsbyi Bacteriorhodopsin (HwBR) from Styrene Maleic Acid (SMA) Polymer Nanodiscs

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	Bacteriorhodopsin-I	polymer	268	29319.0	3	UniProt (Q18DH8) Pfam (PF01036) In PDB	Haloquadratum walsbyi	HwBR,Squarebop I
2	A, B, C	RETINAL	non-polymer		284.4	3	Chemie (RET)
3	A, C	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	non-polymer		356.5	3	Chemie (OLC)
4	A, B, C	(2S)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	non-polymer		356.5	7	Chemie (OLB)
5		water	water		18.0	161	Chemie (HOH)

Sequence modifications

A, B, C: 3 - 254 (UniProt: Q18DH8)

PDB	External Database	Details
Met 1	-	initiating methionine
Ala 2	-	expression tag
His 255	-	expression tag
His 256	-	expression tag
His 257	-	expression tag
His 258	-	expression tag
His 259	-	expression tag
His 260	-	expression tag
Leu 261	-	expression tag
Glu 262	-	expression tag
His 263	-	expression tag
His 264	-	expression tag
His 265	-	expression tag
His 266	-	expression tag
His 267	-	expression tag
His 268	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	87956.9
Non-Polymers*	Number of molecules	13
	Total formula weight	4418.7
All*	Total formula weight	92375.6

*Water molecules are not included.