8CQC

Cryo-EM structure of pentameric proteorhodopsin A18L mutant

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, E (A, B, C, D, E)	Green-light absorbing proteorhodopsin	polymer	256	28110.9	5	UniProt (Q6J4G7) Pfam (PF01036)	uncultured Gammaproteobacteria bacterium	GPR
2	F, G, H, I, J (A, B, C, D, E)	RETINAL	non-polymer		284.4	5	Chemie (RET)
3	K, L, M, N, O (A, B, C, D, E)	water	water		18.0	30	Chemie (HOH)

Sequence modifications

A, B, C, D, E: 1 - 250 (UniProt: Q6J4G7)

PDB	External Database	Details
Leu 18	Ala 18	engineered mutation
Gly 251	-	expression tag
His 252	-	expression tag
His 253	-	expression tag
His 254	-	expression tag
His 255	-	expression tag
His 256	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	140554.3
Non-Polymers*	Number of molecules	5
	Total formula weight	1422.2
All*	Total formula weight	141976.4

*Water molecules are not included.