6TER

Crystal structure of a galactokinase from Bifidobacterium infantis in complex with Galactose

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)	Galactokinase	polymer	429	45815.4	4	UniProt (B7GUI0) Pfam (PF10509) Pfam (PF00288) Pfam (PF08544)	Bifidobacterium longum subsp. infantis ATCC 15697 = JCM 1222 = DSM 20088
2	AA, CA, DB, E, EB... (A, C, B, D)	GLYCEROL	non-polymer		92.1	27	Chemie (GOL)
3	DA, G, H, IA, J... (A, B, C, D)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	26	Chemie (PEG)
4	UA, W, X, Y (B, A)	TRIETHYLENE GLYCOL	non-polymer		150.2	4	Chemie (PGE)
5	BA, Z (A)	TETRAETHYLENE GLYCOL	non-polymer		194.2	2	Chemie (PG4)
6	EA, NB, YA, YB (A, C, B, D)	alpha-D-galactopyranose	non-polymer		180.2	4	Chemie (GLA)
7	FA, ZA (A, B)	beta-D-galactopyranose	non-polymer		180.2	2	Chemie (GAL)
8	GA, PB, QB (A, C)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
9	AB, AC, BB, CB, OB... (B, D, C)	SODIUM ION	non-polymer		23.0	6	Chemie (NA)
10	RB (D)	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		122.1	1	Chemie (TRS)
11	BC, CC, DC, EC (A, B, C, D)	water	water		18.0	764	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 416 (UniProt: B7GUI0)

PDB	External Database	Details
Lys 417	-	expression tag
Leu 418	-	expression tag
Ala 419	-	expression tag
Ala 420	-	expression tag
Ala 421	-	expression tag
Leu 422	-	expression tag
Glu 423	-	expression tag
His 424	-	expression tag
His 425	-	expression tag
His 426	-	expression tag
His 427	-	expression tag
His 428	-	expression tag
His 429	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	183261.5
Non-Polymers*	Number of molecules	75
	Total formula weight	7682.2
All*	Total formula weight	190943.7

*Water molecules are not included.