4Q7T

Crystal structure of photoswitchable fluorescent protein PSmOrange

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	PSmOrange	polymer	245	28209.9	2	UniProt (D0VWW2)	Discosoma sp. (Sea anemone)
2	C, D (A, B)	water	water		18.0	160	Chemie (HOH)

Sequence modifications

A, B: -4 - 231 (UniProt: D0VWW2)

PDB	External Database	Details
Met -16	-	expression tag
Gly -15	-	expression tag
Ser -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
Gly -7	-	expression tag
Arg -6	-	expression tag
Ser -5	-	expression tag
Thr 21	Ser 26	engineered mutation
Leu 64	Gln 69	engineered mutation
Ofm 66	Phe 70	chromophore
Ofm 66	Gly 71	chromophore
Ofm 66	Tyr 72	chromophore
Ofm 66	Gly 73	chromophore
Tyr 99	Phe 104	engineered mutation
Met 124	Leu 129	engineered mutation
Arg 162	Lys 167	engineered mutation
Ser 186	Pro 191	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56419.8
All*	Total formula weight	56419.8

*Water molecules are not included.