2C8N

The Structure of a family 51 arabinofuranosidase, Araf51, from Clostridium thermocellum in complex with 1,3-linked arabinoside of xylobiose.

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, E... (A, B, C, D, E...)	ALPHA-L-ARABINOFURANOSIDASE	polymer	513	58909.7	6	UniProt (Q4CJG5) Pfam (PF06964) UniProt (by SIFTS) (A3DIH0)	CLOSTRIDIUM THERMOCELLUM
2	G, H, I, J, K... (G, H, I, J, K...)	alpha-L-arabinofuranose-(1-3)-alpha-D-xylopyranose	branched		282.2	6	In PDB GlyTouCan (G14982TP)
3	M, N, O, P, Q... (A, B, C, D, E...)	1,2-ETHANEDIOL	non-polymer		62.1	9	Chemie (EDO)
4	AA, V, W, X, Y... (F, A, B, C, D...)	water	water		18.0	211	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: -9 - 0 (PDB: 2C8N)
A, B, C, D, E, F: 1 - 503 (UniProt: Q4CJG5)

PDB	External Database	Details
Ala 173	Glu 173	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	353458.3
Branched	Number of molecules	6
	Total formula weight	1693.5
Non-Polymers*	Number of molecules	9
	Total formula weight	558.6
All*	Total formula weight	355710.4

*Water molecules are not included.