4I2X | pdb_00004i2x

Crystal structure of Signal Regulatory Protein gamma (SIRP-gamma) in complex with FabOX117

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d4i2xd_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4i2xb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4i2xb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d4i2xc2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d4i2xc1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4i2xa2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4i2xa1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Cpn10	e4i2xF1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Fibronectin type I module-like	T: Fibronectin type I module	F: Cpn10	ECOD (v294.1)
E	Ig_2	e4i2xE4	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: Ig_2	ECOD (v294.1)
E	FGGY_C	e4i2xE2	A: a/b three-layered sandwiches	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: FGGY_C	ECOD (v294.1)
D	DUF1968	e4i2xD1	A: a/b three-layered sandwiches	X: dsRBD-like	H: Peptidyl-tRNA hydrolase domain-like	T: Peptidyl-tRNA hydrolase domain-like	F: DUF1968	ECOD (v294.1)
B	DUF1968	e4i2xB1	A: a/b three-layered sandwiches	X: dsRBD-like	H: Peptidyl-tRNA hydrolase domain-like	T: Peptidyl-tRNA hydrolase domain-like	F: DUF1968	ECOD (v294.1)
C	DUF1968	e4i2xC1	A: a/b three-layered sandwiches	X: dsRBD-like	H: Peptidyl-tRNA hydrolase domain-like	T: Peptidyl-tRNA hydrolase domain-like	F: DUF1968	ECOD (v294.1)
A	DUF1968	e4i2xA1	A: a/b three-layered sandwiches	X: dsRBD-like	H: Peptidyl-tRNA hydrolase domain-like	T: Peptidyl-tRNA hydrolase domain-like	F: DUF1968	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

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
E, F	SIRPG (Signal-regulatory protein gamma)	1V-1C-1C-LIKE	Homo sapiens (human)	SIRPG	V-LIKE-DOMAIN V-LIKE, C-LIKE-DOMAIN C-LIKE	RPI	(1V-1C-1C-LIKE)	IMGT (202615-0)
B, D	FabOX117	VH-CH1	Mus musculus (house mouse)	IGHV1-6601, IGHJ301, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202615-0)
A, C	FabOX117	L-KAPPA	Mus musculus (house mouse)	IGKV6-1701, IGKJ101, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202615-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D	Heavy Chain	IGHV1	-	signal-regulatory protein gamma	SAbDab (2026-04-24)
A, C	Light Chain	IGKV6	Kappa	signal-regulatory protein gamma	SAbDab (2026-04-24)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E, F	PF07686	Immunoglobulin V-set domain (V-set)	Immunoglobulin V-set domain	This domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.	Domain
E, F	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F	Signal-regulatory protein gamma	-	regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation regulation of cell population proliferation biological regulation positive regulation of biological process cellular process positive regulation of cellular process negative regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process cell adhesion signaling regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation regulation of cell population proliferation biological regulation positive regulation of biological process cellular process positive regulation of cellular process negative regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process cell adhesion signaling cell-cell signaling cell communication cellular response to stimulus response to stimulus signal transduction intracellular signal transduction positive regulation of cell adhesion regulation of cell adhesion positive regulation of cell-cell adhesion cell-cell adhesion regulation of cell-cell adhesion regulation of localization import into cell positive regulation of cellular component organization regulation of cellular component organization transport vesicle-mediated transport cellular component organization localization positive regulation of endocytosis phagocytosis cellular component organization or biogenesis regulation of endocytosis regulation of transport regulation of phagocytosis regulation of vesicle-mediated transport establishment of localization positive regulation of phagocytosis positive regulation of transport endocytosis multicellular organismal process regulation of leukocyte activation regulation of cell activation positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation T cell activation positive regulation of leukocyte activation regulation of multicellular organismal process regulation of immune system process positive regulation of immune system process positive regulation of T cell activation cell activation regulation of T cell activation immune system process regulation of leukocyte cell-cell adhesion positive regulation of multicellular organismal process regulation of lymphocyte activation	cellular anatomical structure membrane cell periphery plasma membrane
B, D	FabOX117 heavy chain	-	-	-
A, C	FabOX117 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F	IPR051755	Immunoglobulin-like Cell Surface Receptor	Family
E, F	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
E, F	IPR003597	Immunoglobulin C1-set	Domain
E, F	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
E, F	IPR013106	Immunoglobulin V-set domain	Domain
E, F	IPR003599	Immunoglobulin domain subtype	Domain
E, F	IPR007110	Immunoglobulin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
E, F	Pharos: Q9P1W8	atypical teratoid rhabdoid tumor diabetes mellitus large cell medulloblastoma ovarian cancer azoospermia interstitial cystitis malignant glioma psoriasis cutaneous lupus erythematosus invasive ductal breast carcinoma osteosarcoma tuberculosis

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.