2XQO

CtCel124: a cellulase from Clostridium thermocellum

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Dockerin type 1	polymer	243	27945.6	1	UniProt (A3DCJ4) Pfam (PF21908) In PDB	Hungateiclostridium thermocellum (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372)
2	D, E	beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	branched		504.4	2	BIRD (PRD_900021)
3	A	NICKEL (II) ION	non-polymer		58.7	1	Chemie (NI)
4		water	water		18.0	310	Chemie (HOH)

Sequence modifications

A: 24 - 243 (UniProt: A3DCJ4)

PDB	External Database	Details
Mse 1	-	initiating methionine
Gly 2	-	expression tag
Ser 3	-	expression tag
Ser 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
Ser 11	-	expression tag
Ser 12	-	expression tag
Gly 13	-	expression tag
Leu 14	-	expression tag
Val 15	-	expression tag
Pro 16	-	expression tag
Arg 17	-	expression tag
Gly 18	-	expression tag
Ser 19	-	expression tag
His 20	-	expression tag
Mse 21	-	expression tag
Ala 22	-	expression tag
Ser 23	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	27945.6
Branched	Number of molecules	2
	Total formula weight	1008.9
Non-Polymers*	Number of molecules	1
	Total formula weight	58.7
All*	Total formula weight	29013.2

*Water molecules are not included.