X-ray diffraction structure of the apo form of papain


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyCysteine proteinases 8036216 3001808 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AWD40e9clhA1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: acid proteaseF: WD40ECOD (v294.2)

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
OCS Parent Component: CYS

AA0556

:  L-cysteic acid (L-cysteine sulfonic acid) MOD:00460