6J6Y | pdb_00006j6y

FGFR4 D2 - Fab complex

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Bystin	e6j6yA1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)
D	Bystin	e6j6yD1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)
B	Bystin	e6j6yB1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)
E	Bystin	e6j6yE1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)
C	Bystin	e6j6yC1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)
F	Bystin	e6j6yF1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Bystin	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B, E	Antibody Fab Fragment	VH-CH1	Homo sapiens (human)	IGHV3-2301, IGHV3-23D01, IGHJ501, IGHG103, IGHG108, IGHG106	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	IMGT (202609-0)
C, F	Antibody Fab Fragment	L-LAMBDA	Homo sapiens (human)	IGLV1-4701, IGLJ201, IGLJ301, IGLC201, IGLC202, IGLC304	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E	Heavy Chain	IGHV3	-	fibroblast growth factor receptor 4	SAbDab (2026-03-27)
C, F	Light Chain	IGLV1	Lambda	fibroblast growth factor receptor 4	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D	PF07679	Immunoglobulin I-set domain (I-set)	Immunoglobulin I-set domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D	Fibroblast growth factor receptor 4	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding fibroblast growth factor binding protein binding growth factor binding molecular transducer activity catalytic activity, acting on a protein fibroblast growth factor receptor activity kinase activity protein kinase activity signaling receptor activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein tyrosine kinase activity transmembrane receptor protein tyrosine kinase activity transmembrane receptor protein kinase activity transmembrane signaling receptor activity catalytic activity heparin binding glycosaminoglycan binding sulfur compound binding	regulation of biological process regulation of cellular process regulation of lipid metabolic process biological regulation primary metabolic process metabolic process cellular process regulation of metabolic process lipid metabolic process regulation of primary metabolic process cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus regulation of biological process regulation of cellular process regulation of lipid metabolic process biological regulation primary metabolic process metabolic process cellular process regulation of metabolic process lipid metabolic process regulation of primary metabolic process cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of signaling positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process positive regulation of macromolecule metabolic process macromolecule metabolic process cellular component disassembly extracellular matrix disassembly regulation of cellular component organization extracellular matrix organization cellular component organization cellular component organization or biogenesis regulation of extracellular matrix disassembly regulation of extracellular matrix organization extracellular structure organization external encapsulating structure organization phosphate ion homeostasis inorganic ion homeostasis chemical homeostasis homeostatic process sterol homeostasis cholesterol homeostasis lipid homeostasis cell migration cell motility protein phosphorylation protein autophosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of protein metabolic process regulation of protein metabolic process regulation of proteolysis proteolysis positive regulation of proteolysis peptidyl-tyrosine modification peptidyl-amino acid modification peptidyl-tyrosine phosphorylation response to fibroblast growth factor cellular response to growth factor stimulus cell surface receptor signaling pathway response to endogenous stimulus cell surface receptor protein tyrosine kinase signaling pathway cellular response to endogenous stimulus fibroblast growth factor receptor signaling pathway response to growth factor cellular response to fibroblast growth factor stimulus enzyme-linked receptor protein signaling pathway regulation of DNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process regulation of nucleobase-containing compound metabolic process positive regulation of DNA biosynthetic process DNA metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of DNA metabolic process DNA biosynthetic process regulation of DNA metabolic process regulation of steroid biosynthetic process oxoacid metabolic process ketone metabolic process steroid metabolic process lipid biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process regulation of small molecule metabolic process small molecule metabolic process steroid biosynthetic process bile acid biosynthetic process monocarboxylic acid biosynthetic process small molecule biosynthetic process regulation of steroid metabolic process regulation of bile acid biosynthetic process carboxylic acid metabolic process regulation of ketone metabolic process bile acid metabolic process regulation of lipid biosynthetic process monocarboxylic acid metabolic process positive regulation of molecular function regulation of molecular function regulation of catalytic activity positive regulation of catalytic activity glucose homeostasis carbohydrate homeostasis	cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle intracellular anatomical structure transport vesicle intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle intracellular anatomical structure transport vesicle intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle protein-containing complex receptor complex Golgi apparatus endosome extracellular region endoplasmic reticulum
B, E	Fab Heavy chain	-	-	-
C, F	Fab light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D	IPR017441	Protein kinase, ATP binding site	Binding Site
A, D	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A, D	IPR003598	Immunoglobulin subtype 2	Domain
A, D	IPR008266	Tyrosine-protein kinase, active site	Active Site
A, D	IPR020635	Tyrosine-protein kinase, catalytic domain	Domain
A, D	IPR000719	Protein kinase domain	Domain
A, D	IPR003599	Immunoglobulin domain subtype	Domain
A, D	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A, D	IPR013098	Immunoglobulin I-set	Domain
A, D	IPR016248	Fibroblast growth factor receptor family	Family
A, D	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, D	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, D	IPR050122	Receptor Tyrosine Kinase	Family
A, D	IPR007110	Immunoglobulin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, D	Pharos: P22455	prostate cancer adenoid cystic carcinoma non-small cell lung carcinoma adult acute respiratory distress syndrome salivary gland adenoid cystic carcinoma lung adenocarcinoma uterine corpus leiomyoma ductal breast carcinoma in situ Interstitial fibrosis lung cancer peripheral neuropathy rhabdomyosarcoma esophageal adenocarcinoma interstitial lung disease malignant mesothelioma prostate cancer adenoid cystic carcinoma non-small cell lung carcinoma adult acute respiratory distress syndrome salivary gland adenoid cystic carcinoma lung adenocarcinoma uterine corpus leiomyoma ductal breast carcinoma in situ Interstitial fibrosis lung cancer peripheral neuropathy rhabdomyosarcoma esophageal adenocarcinoma interstitial lung disease malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm cleft lip idiopathic pulmonary fibrosis peripheral nervous system disease

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.