Crystal structure of human legumain in complex with macrocypin 1a


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth B]SCOP2B SuperfamilyCaspase-like 8104071 3001096 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCaspase-like 8104071 3001096 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
DGp23e8ae5D1 A: beta barrelsX: RNase A-likeH: Cytochrome P450T: Cytochrome P450F: Gp23ECOD (v294.2)
B [auth C]Ribosomal_S28ee8ae5C1 A: beta barrelsX: RNase A-likeH: Cytochrome P450T: Cytochrome P450F: Ribosomal_S28eECOD (v294.2)
C [auth B]Gp23e8ae5B1 A: beta barrelsX: RNase A-likeH: Cytochrome P450T: Cytochrome P450F: Gp23ECOD (v294.2)
AGp23e8ae5A1 A: beta barrelsX: RNase A-likeH: Cytochrome P450T: Cytochrome P450F: Gp23ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A,
C [auth B]
PF01650Peptidase C13 family (Peptidase_C13)Peptidase C13 familyMembers of this family are asparaginyl peptidases [1]. The blood fluke parasite Schistosoma mansoni has at least five Clan CA cysteine peptidases in its digestive tract including cathepsins B (2 isoforms), C, F and L. All have been recombinantly expr ...Members of this family are asparaginyl peptidases [1]. The blood fluke parasite Schistosoma mansoni has at least five Clan CA cysteine peptidases in its digestive tract including cathepsins B (2 isoforms), C, F and L. All have been recombinantly expressed as active enzymes, albeit in various stages of activation [2]. In addition, a Clan CD peptidase, termed asparaginyl endopeptidase or 'legumain' has been identified. This has formerly been characterised as a 'haemoglobinase', but this term is probably incorrect [2]. Two cDNAs have been described for Schistosoma mansoni legumain; one encodes an active enzyme whereas the active site cysteine residue encoded by the second cDNA is substituted by an asparagine residue. Both forms have been recombinantly expressed [3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
B [auth C],
D
Macrocypin-1a - -
A,
C [auth B]
Legumain

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
A,
C [auth B]
SCH Parent Component: CYS

AA0101

:  L-cysteine methyl disulfide MOD:00110
A,
C [auth B]
SNN Parent Component: ASN

AA0101 , AA0302 , AA0593

:  L-cysteine methyl disulfide MOD:00110 , L-aspartimide MOD:00307 , 2-(2-aminosuccinimidyl)pentanedioic acid (Asn) MOD:01940 , 2-(2-aminosuccinimidyl)pentanedioic acid (Asp) MOD:01941