1CHK

STREPTOMYCES N174 CHITOSANASE PH5.5 298K

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0005576	cellular_component	extracellular region
A	0005975	biological_process	carbohydrate metabolic process
A	0016787	molecular_function	hydrolase activity
A	0016798	molecular_function	hydrolase activity, acting on glycosyl bonds
A	0016977	molecular_function	chitosanase activity
B	0005576	cellular_component	extracellular region
B	0005975	biological_process	carbohydrate metabolic process
B	0016787	molecular_function	hydrolase activity
B	0016798	molecular_function	hydrolase activity, acting on glycosyl bonds
B	0016977	molecular_function	chitosanase activity

Functional Information from PDB Data

site_id	CAT
Number of Residues	2
Details	PUTATIVE CATALYTIC RESIDUES.

Chain	Residue
A	GLU22
A	ASP40

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Functional Information from PROSITE/UniProt

site_id	PS60000
Number of Residues	36
Details	CHITOSANASE_46_80 Chitosanases families 46 and 80 active sites signature. ENssldwkaq.........YkyiedigDgRGyTggiIGfcsgtg.....D

Chain	Residue	Details
A	GLU22-ASP57

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Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	2
Details	Active site: {"description":"Proton donor"}

Chain

Residue

Details

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site_id	SWS_FT_FI2
Number of Residues	2
Details	Active site: {"description":"Nucleophile"}

Chain

Residue

Details

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Catalytic Information from CSA

site_id	CSA1
Number of Residues	3
Details	a catalytic site defined by CSA, PubMed 8564542, 19143844

Chain	Residue	Details
A	ASP40
A	GLU22
A	THR45

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site_id	MCSA1
Number of Residues	3
Details	M-CSA 448

Chain	Residue	Details
A	GLU22	electrostatic stabiliser, proton shuttle (general acid/base)
A	ASP40	proton shuttle (general acid/base)
A	THR45	electrostatic stabiliser

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site_id	MCSA2
Number of Residues	3
Details	M-CSA 448

Chain	Residue	Details
B	GLU22	electrostatic stabiliser, proton shuttle (general acid/base)
B	ASP40	proton shuttle (general acid/base)
B	THR45	electrostatic stabiliser

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