Crystal structure of ACPA E4


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]e5od0H1 A: beta barrelsX: Surp module (SWAP domain)H: gp11/gp12 receptor-binding domainT: gp11/gp12 receptor-binding domainF:ECOD (v294.2)
A [auth L]e5od0L1 A: beta barrelsX: Surp module (SWAP domain)H: gp11/gp12 receptor-binding domainT: gp11/gp12 receptor-binding domainF:ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
A [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV4 --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