2O9B

Crystal Structure of Bacteriophytochrome chromophore binding domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Bacteriophytochrome	polymer	342	37024.3	1	UniProt (Q9RZA4) Pfam (PF08446) Pfam (PF01590) In PDB	Deinococcus radiodurans	Phytochrome-like protein
2	A	3-[2-[(Z)-[3-(2-carboxyethyl)-5-[(Z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-1-ium -2-ylidene]methyl]-5-[(Z)-[(3E)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-4-methyl-1H-pyrrol-3- yl]propanoic acid	non-polymer		585.7	1	Chemie (LBV)
3		water	water		18.0	111	Chemie (HOH)

Sequence modifications

A: 1 - 321 (UniProt: Q9RZA4)

PDB	External Database	Details
Met -14	-	cloning artifact
Ala -13	-	cloning artifact
Leu -12	-	cloning artifact
Ser -11	-	cloning artifact
Met -10	-	cloning artifact
Thr -9	-	cloning artifact
Gly -8	-	cloning artifact
Gly -7	-	cloning artifact
Gln -6	-	cloning artifact
Gln -5	-	cloning artifact
Met -4	-	cloning artifact
Gly -3	-	cloning artifact
Arg -2	-	cloning artifact
Gly -1	-	cloning artifact
Ser 0	-	cloning artifact
Ser 307	Tyr 307	engineered mutation
His 322	-	expression tag
His 323	-	expression tag
His 324	-	expression tag
His 325	-	expression tag
His 326	-	expression tag
His 327	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	37024.3
Non-Polymers*	Number of molecules	1
	Total formula weight	585.7
All*	Total formula weight	37609.9

*Water molecules are not included.