Crystal structure of anti-FLAG M2 Fab fragment bound to FLAG-tag peptide epitope


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]Pro_isomerasee8rmoH01 A: alpha arraysX: HTHH: HTHT: Three-helical HTHF: Pro_isomeraseECOD (v295)
C [auth L]Pro_isomerasee8rmoL01 A: alpha arraysX: HTHH: HTHT: Three-helical HTHF: Pro_isomeraseECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV1 -flag-tagSAbDab (2026-06-26)
C [auth L]Light ChainIGKV1 Kappaflag-tagSAbDab (2026-06-26)

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