8C31

Dark state 1.8 Angstrom crystal structure of cobalamin binding domain belonging to a light-dependent transcription regulator TtCarH obtained under aerobic condition

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	Probable transcriptional regulator	polymer	215	23259.8	4	UniProt (Q746J7) Pfam (PF02607) In PDB	Thermus thermophilus HB27
2	A, B, C	BROMIDE ION	non-polymer		79.9	3	Chemie (BR)
3	A, B, C, D	COBALAMIN	non-polymer		1330.4	4	Chemie (B12)
4	A, B, C, D	5'-DEOXYADENOSINE	non-polymer		251.2	4	Chemie (5AD)
5	A, C	IMIDAZOLE	non-polymer		69.1	2	Chemie (IMD)
6	C	TRIETHYLENE GLYCOL	non-polymer		150.2	1	Chemie (PGE)
7	C, D	1,2-ETHANEDIOL	non-polymer		62.1	5	Chemie (EDO)
8		water	water		18.0	490	Chemie (HOH)

Sequence modifications

A, B, C, D: 78 - 285 (UniProt: Q746J7)

PDB	External Database	Details
Gly 286	-	expression tag
His 287	-	expression tag
His 288	-	expression tag
His 289	-	expression tag
His 290	-	expression tag
His 291	-	expression tag
His 292	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	93039.2
Non-Polymers*	Number of molecules	19
	Total formula weight	7164.8
All*	Total formula weight	100204.0

*Water molecules are not included.