8FRB

Mouse acidic mammalian chitinase, catalytic domain in complex with N,N'-diacetylchitobiose at pH 5.25

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)	Acidic mammalian chitinase	polymer	397	44622.0	4	UniProt (Q91XA9) Pfam (PF00704)	Mus musculus (house mouse)	AMCase,YNL
2	E, F, G, H, I... (E, F, G, H, I...)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	7	In PDB GlyTouCan (G42666HT)
3	L (L)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetylamino-2-deoxy-alpha-L-idopyranose	branched		424.4	1	In PDB GlyTouCan (G45933ZU)
4	M, N (M, N)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose	branched		424.4	2	In PDB GlyTouCan (G05026ZL)
5	O, P, Q, R, S (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	5	Chemie (MG)
6	T, U, V, W (A, B, C, D)	water	water		18.0	1666	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 391 (UniProt: Q91XA9)

PDB	External Database	Details
His 392	-	expression tag
His 393	-	expression tag
His 394	-	expression tag
His 395	-	expression tag
His 396	-	expression tag
His 397	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	178488.0
Branched	Number of molecules	10
	Total formula weight	4244.0
Non-Polymers*	Number of molecules	5
	Total formula weight	121.5
All*	Total formula weight	182853.5

*Water molecules are not included.