Annotations: 7Q4Q

Magacizumab Fab fragment in complex with human LRG1 epitope

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody 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)
B	Beta-lactamase2	e7q4qB1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Beta-lactamase2	ECOD (v294.2)
D	Beta-lactamase2	e7q4qD1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Beta-lactamase2	ECOD (v294.2)
A	Beta-lactamase2	e7q4qA1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Beta-lactamase2	ECOD (v294.2)
C	Beta-lactamase2	e7q4qC1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Beta-lactamase2	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	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)
A	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)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D	Heavy Chain	IGHV1	-	lrg1 epitope	SAbDab (2026-05-15)
A, C	Light Chain	IGKV3	Kappa	lrg1 epitope	SAbDab (2026-05-15)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F	LRG1 epitope	transforming growth factor beta receptor binding protein binding binding signaling receptor binding type I transforming growth factor beta receptor binding cytokine receptor binding transforming growth factor beta binding growth factor binding cytokine binding type II transforming growth factor beta receptor binding	epithelium migration multicellular organismal process tissue migration ameboidal-type cell migration keratinocyte migration epithelial cell migration cell migration cellular process cell motility wound healing regulation of biological process cell population proliferation regulation of cellular process response to stimulus epithelium migration multicellular organismal process tissue migration ameboidal-type cell migration keratinocyte migration epithelial cell migration cell migration cellular process cell motility wound healing regulation of biological process cell population proliferation regulation of cellular process response to stimulus positive regulation of cell population proliferation positive regulation of epithelial cell proliferation biological regulation positive regulation of biological process response to stress regulation of cell population proliferation regulation of epithelial cell proliferation response to wounding epithelial cell proliferation positive regulation of cellular process positive regulation of epithelial cell proliferation involved in wound healing positive regulation of keratinocyte proliferation regulation of keratinocyte proliferation keratinocyte proliferation immune response immune system process cellular response to stimulus positive regulation of cell communication cell surface receptor protein serine/threonine kinase signaling pathway positive regulation of signal transduction cellular response to growth factor stimulus signaling cellular response to transforming growth factor beta stimulus regulation of transmembrane receptor protein serine/threonine kinase signaling pathway regulation of signal transduction cell communication regulation of transforming growth factor beta receptor signaling pathway positive regulation of response to stimulus cellular response to endogenous stimulus signal transduction enzyme-linked receptor protein signaling pathway regulation of signaling cell surface receptor signaling pathway regulation of cellular response to transforming growth factor beta stimulus response to endogenous stimulus positive regulation of transforming growth factor beta receptor signaling pathway regulation of cellular response to growth factor stimulus positive regulation of transmembrane receptor protein serine/threonine kinase signaling pathway positive regulation of cellular response to transforming growth factor beta stimulus response to transforming growth factor beta regulation of response to stimulus transforming growth factor beta receptor signaling pathway regulation of cell communication response to growth factor transforming growth factor beta receptor superfamily signaling pathway positive regulation of signaling cell adhesion cell-cell adhesion leukocyte adhesion to vascular endothelial cell leukocyte cell-cell adhesion regulation of epithelial to mesenchymal transition regulation of developmental process cellular developmental process positive regulation of epithelial to mesenchymal transition regulation of cell differentiation mesenchyme development positive regulation of developmental process positive regulation of cell differentiation cell differentiation anatomical structure development regulation of multicellular organismal process developmental process animal organ development tissue development epithelial to mesenchymal transition positive regulation of multicellular organismal process mesenchymal cell differentiation epithelium development morphogenesis of an epithelium epiboly involved in wound healing morphogenesis of an epithelial sheet wound healing, spreading of epidermal cells tissue morphogenesis anatomical structure morphogenesis epiboly wound healing, spreading of cells angiogenesis regulation of vasculature development multicellular organism development tube morphogenesis regulation of anatomical structure morphogenesis blood vessel development system development regulation of multicellular organismal development blood vessel morphogenesis tube development positive regulation of angiogenesis vasculature development circulatory system development positive regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis biological process involved in interspecies interaction between organisms response to other organism response to bacterium response to external stimulus response to external biotic stimulus response to biotic stimulus fat cell differentiation brown fat cell differentiation endothelial cell proliferation regulation of endothelial cell proliferation positive regulation of endothelial cell proliferation	cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular vesicle ficolin-1-rich granule cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular vesicle ficolin-1-rich granule intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen intracellular organelle organelle lumen cytoplasmic vesicle ficolin-1-rich granule lumen secretory granule secretory vesicle cytoplasm tertiary granule lumen tertiary granule vesicle lumen cytoplasmic vesicle lumen secretory granule lumen specific granule lumen specific granule
B, D	Magacizumab heavy chain	-	-	-
A, C	Magacizumab light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F	IPR003591	Leucine-rich repeat, typical subtype	Repeat
E, F	IPR050467	Leucine-rich repeat and fibronectin type-III domain-containing	Family
E, F	IPR001611	Leucine-rich repeat	Repeat
E, F	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
E, F	IPR000483	Cysteine-rich flanking region, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
E, F	: P02750	malignant colon neoplasm classic familial adenomatous polyposis benign colon neoplasm colonic neoplasm head and neck cancer pancreatic ductal adenocarcinoma tuberculosis breast carcinoma ductal breast carcinoma in situ Polyposis, Adenomatous Intestinal ulcerative colitis genetic intestinal polyposis osteosarcoma psoriasis

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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.