Structure of anti-FLAG M2 Fab domain
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth H] | d2g60h3 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | V set domains (antibody variable domain-like) | Immunoglobulin heavy chain variable domain, VH | (Mus musculus ) [TaxId: 10090 ], | SCOPe (2.08) |
| B [auth H] | d2g60h2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma | (Mus musculus ) [TaxId: 10090 ], | SCOPe (2.08) |
| A [auth L] | d2g60l1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | V set domains (antibody variable domain-like) | automated matches | (Mus musculus ) [TaxId: 10090 ], | SCOPe (2.08) |
| A [auth L] | d2g60l2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Mus musculus ) [TaxId: 10090 ], | SCOPe (2.08) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth H] | Copper-bind | e2g60H1 | A: a/b three-layered sandwiches | X: Phage tail fiber protein trimerization domain | H: beta-Prism I | T: beta-Prism I | F: Copper-bind | ECOD (v294.1) |
| B [auth H] | Flavodoxin_2 | e2g60H2 | A: a/b three-layered sandwiches | X: Globin-like | H: Globin-like | T: Globin-like | F: Flavodoxin_2 | ECOD (v294.1) |
| A [auth L] | PCNA_N | e2g60L1 | A: a/b three-layered sandwiches | X: HTH | H: Nudix | T: winged helix domain | F: PCNA_N | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| B [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| A [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B [auth H] | Heavy Chain | IGHV1 | - | - | SAbDab (2026-04-10) |
| A [auth L] | Light Chain | IGKV1 | Kappa | - | SAbDab (2026-04-10) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| B [auth H] | anti-FLAG M2 Fab heavy chain | - | ||
| A [auth L] | anti-FLAG M2 Fab light chain |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| B [auth H] | IPR003597 | Immunoglobulin C1-set | Domain |
| B [auth H] | IPR013783 | Immunoglobulin-like fold | Homologous Superfamily |
| B [auth H] | IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily |
| B [auth H] | IPR013106 | Immunoglobulin V-set domain | Domain |
| B [auth H] | IPR003599 | Immunoglobulin domain subtype | Domain |
| B [auth H] | IPR007110 | Immunoglobulin-like domain | Domain |
| B [auth H] | IPR050380 | Immune Recognition and Response Modulators | Family |
| A [auth L] | IPR050150 | Immunoglobulin Variable Light Chain | Family |
| A [auth L] | IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily |
| A [auth L] | IPR003597 | Immunoglobulin C1-set | Domain |
| A [auth L] | IPR013783 | Immunoglobulin-like fold | Homologous Superfamily |
| A [auth L] | IPR013106 | Immunoglobulin V-set domain | Domain |
| A [auth L] | IPR003599 | Immunoglobulin domain subtype | Domain |
| A [auth L] | IPR007110 | Immunoglobulin-like domain | Domain |
| A [auth L] | IPR003006 | Immunoglobulin/major histocompatibility complex, conserved site | Conserved Site |














