Crystal structure of the human IgD Fab - structure Fab4


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]Cullin_ABe8ojvH1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Cullin_ABECOD (v294.2)
A [auth L]Cullin_ABe8ojvL1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Cullin_ABECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV1 --SAbDab (2026-05-08)
A [auth L]Light ChainIGLV1 Lambda-SAbDab (2026-05-08)

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
B [auth H]PCA Parent Component: GLN

AA0031

:  2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420
A [auth L]PCA Parent Component: GLN

AA0031 , AA0031

:  2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420