Fab arms of antibodies 4C12-B12 and CR3022 bound to pangolin receptor binding domain (pRBD)


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
H [auth K]Ald_Xan_dh_Ce8cwjK1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Ald_Xan_dh_CECOD (v294.2)
J [auth V]Peptidase_C1e8cwjV1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
G [auth J]Ald_Xan_dh_Ce8cwjJ1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Ald_Xan_dh_CECOD (v294.2)
I [auth U]Peptidase_C1e8cwjU1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
F [auth I]Peptidase_C1e8cwjI1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
C [auth G]Peptidase_C1e8cwjG1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
E [auth B]Peptidase_C1e8cwjB1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
B [auth L]Ald_Xan_dh_Ce8cwjL1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Ald_Xan_dh_CECOD (v294.2)
A [auth H]Peptidase_C1e8cwjH1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Peptidase_C1ECOD (v294.2)
D [auth A]Ald_Xan_dh_Ce8cwjA1 A: beta barrelsX: RNase A-likeH: RNase A-likeT: RNase A-likeF: Ald_Xan_dh_CECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
H [auth K],
J [auth V]
Light ChainIGKV1 Kappaspike glycoproteinSAbDab (2026-05-08)
G [auth J],
I [auth U]
Heavy ChainIGHV3 -spike glycoproteinSAbDab (2026-05-08)
B [auth L],
E [auth B]
Light ChainIGKV4 Kappaspike glycoproteinSAbDab (2026-05-08)
A [auth H],
D [auth A]
Heavy ChainIGHV5 -spike glycoproteinSAbDab (2026-05-08)