3K4Z

Crystal Structure of the Cellulosomal CBM4 from Clostridium thermocellum Cellulase CbhA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Glycoside hydrolase family 9	polymer	289	33091.9	1	UniProt (B4BCE7)	Clostridium thermocellum DSM 4150
2	B (B)	beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		342.3	1	In PDB BIRD (PRD_900005) GlyTouCan (G84824ZO)		beta-cellobiose
3	C, D (A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	E (A)	NICKEL (II) ION	non-polymer		58.7	1	Chemie (NI)
5	F (A)	OXALATE ION	non-polymer		88.0	1	Chemie (OXL)
6	G (A)	1-O-phosphono-beta-D-glucopyranose	non-polymer		260.1	1	Chemie (XGP)
7	H (A)	water	water		18.0	271	Chemie (HOH)

Sequence modifications

A: 2 - 281 (UniProt: B4BCE7)

PDB	External Database	Details
Met 1	-	expression tag
Leu 282	-	expression tag
Glu 283	-	expression tag
His 284	-	expression tag
His 285	-	expression tag
His 286	-	expression tag
His 287	-	expression tag
His 288	-	expression tag
His 289	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	33091.9
Branched	Number of molecules	1
	Total formula weight	342.3
Non-Polymers*	Number of molecules	5
	Total formula weight	455.5
All*	Total formula weight	33889.7

*Water molecules are not included.