8C35

Dark state 2.1 Angstrom crystal structure of H132A variant of cobalamin binding domain belonging to a light-dependent transcription regulator TtCarH

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 (A, B, C, D)	Probable transcriptional regulator	polymer	215	23192.7	4	UniProt (Q746J7) Pfam (PF02607)	Thermus thermophilus HB27
2	E, G, I, K (A, B, C, D)	COBALAMIN	non-polymer		1330.4	4	Chemie (B12)
3	F, H, J, L (A, B, C, D)	5'-DEOXYADENOSINE	non-polymer		251.2	4	Chemie (5AD)
4	M, N, O, P (A, B, C, D)	water	water		18.0	432	Chemie (HOH)

Sequence modifications

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

PDB	External Database	Details
Ala 132	His 132	engineered mutation
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	92770.9
Non-Polymers*	Number of molecules	8
	Total formula weight	6326.4
All*	Total formula weight	99097.3

*Water molecules are not included.