Intermediate cleaving peptidase 55

Intermediate cleaving peptidase 55 (EC 3.4.11.26, Icp55, mitochondrial intermediate cleaving peptidase 55 kDa) is an enzyme.^[1][2] This enzyme catalyses the following chemical reaction

The enzyme cleaves the Pro36-Pro37 bond of cysteine desulfurase (EC 2.8.1.7) removing three amino acid residues (Tyr-Ser-Pro) from the N-terminus after cleavage by mitochondrial processing peptidase.

Intermediate cleaving peptidase 55
Identifiers
EC no.	3.4.11.26
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

Icp55 removes the destabilizing N-terminal amino acid residues.