Annotations: 3CGU

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Argos repeat domain-like	8103603	3002786	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Argos repeat domain-like	8103604	3002786	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Argos repeat domain-like	8103603	3002786	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Argos repeat domain-like	8103604	3002786	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e3cguA1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF11581	e3cguA2	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: PF11581	ECOD (1.6)
B	F_UNCLASSIFIED	e3cguB1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF11581	e3cguB2	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: PF11581	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.20.20.160	Mainly Beta	Single Sheet	Anthopleurin-A		CATH (4.3.0)
A	2.20.20.150	Mainly Beta	Single Sheet	Anthopleurin-A		CATH (4.3.0)
B	2.20.20.160	Mainly Beta	Single Sheet	Anthopleurin-A		CATH (4.3.0)
B	2.20.20.150	Mainly Beta	Single Sheet	Anthopleurin-A		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF11581	Antagonist of EGFR signalling, Argos (Argos)	Antagonist of EGFR signalling, Argos	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Protein giant-lens	epidermal growth factor receptor binding protein binding binding signaling receptor binding growth factor receptor binding identical protein binding molecular function inhibitor activity molecular function regulator activity signaling receptor inhibitor activity receptor antagonist activity signaling receptor regulator activity	developmental process multicellular organism development multicellular organismal process anterior/posterior axis specification anterior/posterior pattern specification anatomical structure development pattern specification process regionalization axis specification dorsal/ventral pattern formation dorsal/ventral axis specification imaginal disc morphogenesis imaginal disc-derived wing morphogenesis metamorphosis developmental process multicellular organism development multicellular organismal process anterior/posterior axis specification anterior/posterior pattern specification anatomical structure development pattern specification process regionalization axis specification dorsal/ventral pattern formation dorsal/ventral axis specification imaginal disc morphogenesis imaginal disc-derived wing morphogenesis metamorphosis wing disc morphogenesis imaginal disc development instar larval or pupal morphogenesis post-embryonic animal morphogenesis post-embryonic development animal organ morphogenesis imaginal disc-derived wing vein specification appendage development post-embryonic appendage morphogenesis animal organ development wing disc development instar larval or pupal development imaginal disc-derived appendage morphogenesis anatomical structure morphogenesis appendage morphogenesis imaginal disc-derived appendage development negative regulation of stem cell differentiation regulation of biological process regulation of cellular process cellular developmental process regulation of developmental process negative regulation of developmental process biological regulation negative regulation of biological process regulation of cell differentiation stem cell differentiation cell differentiation regulation of stem cell differentiation negative regulation of cellular process cellular process negative regulation of cell differentiation sensory perception of light stimulus system process sensory perception nervous system process visual perception sensory organ development eye development visual system development sensory system development system development positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death positive regulation of cellular process cell development regulation of neurogenesis regulation of cell development regulation of nervous system development negative regulation of neurogenesis neurogenesis negative regulation of nervous system development regulation of multicellular organismal process regulation of multicellular organismal development nervous system development negative regulation of cell development negative regulation of multicellular organismal process cellular response to stimulus response to stimulus signaling negative regulation of signaling negative regulation of ERBB signaling pathway regulation of signal transduction cell surface receptor protein tyrosine kinase signaling pathway negative regulation of cell communication cell communication regulation of epidermal growth factor receptor signaling pathway epidermal growth factor receptor signaling pathway signal transduction enzyme-linked receptor protein signaling pathway regulation of signaling regulation of ERBB signaling pathway cell surface receptor signaling pathway negative regulation of response to stimulus negative regulation of signal transduction regulation of response to stimulus negative regulation of epidermal growth factor receptor signaling pathway ERBB signaling pathway regulation of cell communication negative regulation of intracellular signal transduction intracellular signal transduction regulation of intracellular signal transduction intracellular signaling cassette regulation of MAPK cascade negative regulation of ERK1 and ERK2 cascade MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade negative regulation of MAPK cascade genital disc development establishment of ommatidial planar polarity establishment or maintenance of cell polarity eye morphogenesis establishment of tissue polarity compound eye morphogenesis morphogenesis of a polarized epithelium ommatidial rotation establishment of planar polarity epithelium development morphogenesis of an epithelium tissue development tissue morphogenesis compound eye development sensory organ morphogenesis regulation of cell adhesion oenocyte delamination negative regulation of cell adhesion cell adhesion cell-cell adhesion negative regulation of cell-cell adhesion regulation of cell-cell adhesion delamination eye-antennal disc morphogenesis eye-antennal disc development haltere disc development haltere development	extracellular region extracellular space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR021633	Antagonist of EGFR signalling, Argos	Family

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 R01GM133198.