4GCZ

Structure of a blue-light photoreceptor

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)	Blue-light photoreceptor, Sensor protein fixL	polymer	385	43237.7	2	UniProt (O34627) UniProt (P23222) Pfam (PF13426) Pfam (PF00512) Pfam (PF02518)	Bacillus subtilis	Photoactive flavo-yellow protein, Phototropin homolog
2	C, I (A, B)	FLAVIN MONONUCLEOTIDE	non-polymer		456.3	2	Chemie (FMN)
3	D (A)	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	1	Chemie (ADP)
4	E, F, G, H, J... (A, B)	SULFATE ION	non-polymer		96.1	10	Chemie (SO4)
5	P, Q (A, B)	water	water		18.0	451	Chemie (HOH)

Sequence modifications

A, B: 1 - 126 (UniProt: O34627)
A, B: 127 - 375 (UniProt: P23222)

PDB	External Database	Details
Leu 376	-	expression tag
Glu 377	-	expression tag
His 378	-	expression tag
His 379	-	expression tag
His 380	-	expression tag
His 381	-	expression tag
His 382	-	expression tag
His 383	-	expression tag
His 384	-	expression tag
His 385	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	86475.4
Non-Polymers*	Number of molecules	13
	Total formula weight	2300.5
All*	Total formula weight	88775.9

*Water molecules are not included.