2IY9

Crystal structure of the A-subunit of the AB5 toxin from E. coli

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0004252	molecular_function	serine-type endopeptidase activity
A	0006508	biological_process	proteolysis
A	0008236	molecular_function	serine-type peptidase activity

Functional Information from PROSITE/UniProt

site_id	PS00014
Number of Residues	4
Details	ER_TARGET Endoplasmic reticulum targeting sequence. SEEL

Chain	Residue	Details
A	SER344-LEU347

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	3
Details	Active site: {"description":"Charge relay system","evidences":[{"source":"PROSITE-ProRule","id":"PRU01240","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"15226357","evidenceCode":"ECO:0000303"}]}

Chain

Residue

Details

---