5JJJ

Structure of the SRII/HtrII Complex in P64 space group ("U" shape)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Sensory rhodopsin-2	polymer	248	26534.9	1	UniProt (P42196) Pfam (PF01036)	Natronomonas pharaonis (Natronobacterium pharaonis)	Sensory rhodopsin II,SR-II
2	B (B)	Sensory rhodopsin II transducer	polymer	141	14764.7	1	UniProt (P42259) Pfam (PF17909) Pfam (PF00672)	Natronomonas pharaonis (Natronobacterium pharaonis)	HTR-II,Methyl-accepting phototaxis protein II,MPP-II
3	C (A)	RETINAL	non-polymer		284.4	1	Chemie (RET)
4	D, E, F, G, H... (A)	EICOSANE	non-polymer		282.5	8	Chemie (LFA)
5	L, M (A, B)	water	water		18.0	26	Chemie (HOH)

Sequence modifications

A: 2 - 239 (UniProt: P42196)

PDB	External Database	Details
Glu 240	-	expression tag
Asn 241	-	expression tag
Ser 242	-	expression tag
His 243	-	expression tag
His 244	-	expression tag
His 245	-	expression tag
His 246	-	expression tag
His 247	-	expression tag
His 248	-	expression tag
His 249	-	expression tag

B: 5 - 137 (UniProt: P42259)

PDB	External Database	Details
Ala 4	-	expression tag
His 138	-	expression tag
His 139	-	expression tag
His 140	-	expression tag
His 141	-	expression tag
His 142	-	expression tag
His 143	-	expression tag
His 144	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41299.6
Non-Polymers*	Number of molecules	9
	Total formula weight	2544.8
All*	Total formula weight	43844.4

*Water molecules are not included.