Annotations: 9T5Z

Cryo-EM structure of alphaM/beta2:MEM148-Fab headpiece complex (without alphaM I-domain)

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth L]	Light Chain	IGKV14	Kappa	integrin beta-2	SAbDab (2026-05-22)
C [auth H]	Heavy Chain	IGHV3	-	integrin beta-2	SAbDab (2026-05-22)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF00362	Integrin beta chain VWA domain (Integrin_beta)	Integrin beta chain VWA domain	Integrins have been found in animals and their homologues have also been found in cyanobacteria, probably due to horizontal gene transfer [1]. This domain corresponds to the integrin beta VWA domain.	Domain
A	PF01839	FG-GAP repeat (FG-GAP)	FG-GAP repeat	-	Repeat
A	PF08441	Integrin alpha Ig-like domain 1 (Integrin_A_Ig_1)	Integrin alpha Ig-like domain 1	This domain is found in integrin alpha and integrin alpha precursors to the C terminus of a number of Pfam:PF01839 repeats and to the N-terminus of the Pfam:PF00357 cytoplasmic region. This region is composed of an immunoglobulin-like domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth L]	Anti-colorectal carcinoma light chain	-	-	-
C [auth H]	Murine IgG1 MEM148 heavy chain	-	-	-
B	Integrin beta-2	amyloid-beta binding binding peptide binding protein binding heat shock protein binding opsonin binding complement component C3b binding complement binding cation binding ion binding metal ion binding small molecule binding cell adhesion molecule binding ICAM-3 receptor activity amyloid-beta binding binding peptide binding protein binding heat shock protein binding opsonin binding complement component C3b binding complement binding cation binding ion binding metal ion binding small molecule binding cell adhesion molecule binding ICAM-3 receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity protein-containing complex binding integrin binding signaling receptor binding kinase binding enzyme binding protein kinase binding	regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological process reactive nitrogen species metabolic process nitric oxide metabolic process positive regulation of metabolic process nitric oxide biosynthetic process biosynthetic process positive regulation of biosynthetic process cellular process metabolic process regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological process reactive nitrogen species metabolic process nitric oxide metabolic process positive regulation of metabolic process nitric oxide biosynthetic process biosynthetic process positive regulation of biosynthetic process cellular process metabolic process regulation of nitric oxide metabolic process positive regulation of nitric oxide biosynthetic process regulation of metabolic process positive regulation of cellular process reactive oxygen species metabolic process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process superoxide anion generation positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of reactive oxygen species metabolic process membrane organization import into cell transport establishment of localization vesicle-mediated transport cellular component organization localization phagocytosis, engulfment membrane invagination phagocytosis cellular component organization or biogenesis endocytosis plasma membrane invagination receptor internalization receptor-mediated endocytosis endothelial cell migration cell migration cell motility regulation of protein modification process regulation of protein phosphorylation peptidyl-tyrosine modification regulation of primary metabolic process peptidyl-amino acid modification phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process protein phosphorylation phosphorylation regulation of protein metabolic process regulation of peptidyl-tyrosine phosphorylation primary metabolic process regulation of macromolecule metabolic process macromolecule modification regulation of phosphorylation regulation of phosphorus metabolic process macromolecule metabolic process peptidyl-tyrosine phosphorylation cell chemotaxis cellular response to stimulus chemotaxis response to stimulus neutrophil chemotaxis response to external stimulus neutrophil migration granulocyte migration leukocyte migration cellular response to chemical stimulus taxis immune system process granulocyte chemotaxis response to chemical myeloid leukocyte migration leukocyte chemotaxis locomotion apoptotic process cell death programmed cell death signaling cell-cell signaling cell communication cellular extravasation defense response response to stress inflammatory response leukocyte migration involved in inflammatory response cellular response to low-density lipoprotein particle stimulus response to endogenous stimulus response to lipoprotein particle cellular response to lipoprotein particle stimulus cell adhesion negative regulation of dopamine metabolic process regulation of amine metabolic process negative regulation of metabolic process negative regulation of biological process dopamine metabolic process catechol-containing compound metabolic process amine metabolic process catecholamine metabolic process phenol-containing compound metabolic process negative regulation of cellular process negative regulation of amine metabolic process regulation of catecholamine metabolic process biogenic amine metabolic process regulation of dopamine metabolic process cell-cell adhesion leukocyte cell-cell adhesion heterotypic cell-cell adhesion regulation of immune effector process neutrophil activation multicellular organismal process regulation of localization regulation of myeloid leukocyte mediated immunity positive regulation of leukocyte mediated immunity regulated exocytosis cell activation involved in immune response leukocyte degranulation myeloid leukocyte mediated immunity myeloid leukocyte activation neutrophil activation involved in immune response positive regulation of leukocyte degranulation positive regulation of regulated secretory pathway positive regulation of immune response establishment of localization in cell leukocyte mediated immunity regulation of immune system process positive regulation of immune system process immune response immune effector process regulation of secretion regulation of leukocyte mediated immunity exocytosis regulation of response to stimulus positive regulation of myeloid leukocyte mediated immunity regulation of immune response cellular localization positive regulation of secretion by cell positive regulation of exocytosis leukocyte activation regulation of regulated secretory pathway positive regulation of response to stimulus neutrophil mediated immunity secretion by cell regulation of secretion by cell positive regulation of secretion regulation of neutrophil degranulation leukocyte activation involved in immune response neutrophil degranulation positive regulation of immune effector process regulation of leukocyte degranulation secretion regulation of transport cell activation export from cell regulation of vesicle-mediated transport myeloid cell activation involved in immune response positive regulation of transport regulation of exocytosis positive regulation of neutrophil degranulation granulocyte activation receptor clustering macromolecule localization intracellular protein localization localization within membrane protein localization to membrane macrophage activation leukocyte activation involved in inflammatory response microglial cell activation glial cell activation neuroinflammatory response establishment of protein localization regulation of protein localization protein targeting positive regulation of establishment of protein localization regulation of protein targeting to membrane establishment of protein localization to membrane regulation of establishment of protein localization protein targeting to membrane regulation of cellular localization regulation of protein targeting positive regulation of protein targeting to membrane cell-matrix adhesion cell-substrate adhesion developmental process formation of primary germ layer cellular developmental process embryonic morphogenesis tissue development embryo development gastrulation anatomical structure morphogenesis multicellular organism development endoderm development cell differentiation anatomical structure development anatomical structure formation involved in morphogenesis endoderm formation endodermal cell differentiation amyloid-beta clearance integrin-mediated signaling pathway cell surface receptor signaling pathway signal transduction cell adhesion mediated by integrin regulation of developmental process regulation of cell shape cell morphogenesis regulation of cell morphogenesis regulation of biological quality regulation of anatomical structure morphogenesis angiogenesis regulation of vasculature development positive regulation of developmental process tube morphogenesis regulation of multicellular organismal process 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 positive regulation of multicellular organismal process positive regulation of cell adhesion regulation of cell adhesion positive regulation of leukocyte cell-cell adhesion positive regulation of leukocyte adhesion to vascular endothelial cell regulation of leukocyte adhesion to vascular endothelial cell positive regulation of cell-cell adhesion leukocyte adhesion to vascular endothelial cell regulation of leukocyte cell-cell adhesion regulation of cell-cell adhesion	membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system specific granule membrane intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system specific granule membrane intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule cell periphery cell surface plasma membrane external side of plasma membrane side of membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular membrane-bounded organelle protein-containing complex signaling receptor complex tertiary granule membrane tertiary granule anchoring junction cell junction focal adhesion cell-substrate junction plasma membrane protein complex membrane protein complex integrin alphaD-beta2 complex integrin complex plasma membrane signaling receptor complex protein complex involved in cell adhesion integrin alphaL-beta2 complex integrin alphaX-beta2 complex integrin alphaM-beta2 complex ficolin-1-rich granule membrane ficolin-1-rich granule membrane microdomain membrane raft plasma membrane raft plasma membrane region
A	Integrin alpha-M	amyloid-beta binding binding peptide binding protein binding heat shock protein binding opsonin binding complement component C3b binding complement binding cation binding ion binding metal ion binding small molecule binding molecular transducer activity signaling receptor activity amyloid-beta binding binding peptide binding protein binding heat shock protein binding opsonin binding complement component C3b binding complement binding cation binding ion binding metal ion binding small molecule binding molecular transducer activity signaling receptor activity cargo receptor activity cell adhesion molecule binding protein-containing complex binding integrin binding signaling receptor binding	regulation of biological process regulation of cellular process reactive oxygen species metabolic process biological regulation positive regulation of biological process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process positive regulation of metabolic process superoxide anion generation metabolic process cellular process positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of biological process regulation of cellular process reactive oxygen species metabolic process biological regulation positive regulation of biological process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process positive regulation of metabolic process superoxide anion generation metabolic process cellular process positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of metabolic process regulation of reactive oxygen species metabolic process positive regulation of cellular process membrane organization import into cell transport establishment of localization vesicle-mediated transport cellular component organization localization phagocytosis, engulfment membrane invagination phagocytosis cellular component organization or biogenesis endocytosis plasma membrane invagination response to stimulus response to stress response to ischemia response to ketone response to curcumin response to ether response to chemical response to oxygen-containing compound biological process involved in interspecies interaction between organisms immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism innate immune response response to external biotic stimulus developmental process multicellular organismal process visual system development pattern specification process nervous system development regionalization multicellular organism development central nervous system development anatomical structure development sensory system development vertebrate eye-specific patterning system development cell adhesion negative regulation of dopamine metabolic process regulation of amine metabolic process negative regulation of metabolic process negative regulation of biological process dopamine metabolic process primary metabolic process catechol-containing compound metabolic process regulation of primary metabolic process amine metabolic process catecholamine metabolic process phenol-containing compound metabolic process negative regulation of cellular process negative regulation of amine metabolic process regulation of catecholamine metabolic process biogenic amine metabolic process regulation of dopamine metabolic process heterotypic cell-cell adhesion cell-cell adhesion regulation of immune effector process neutrophil activation regulation of localization regulation of myeloid leukocyte mediated immunity positive regulation of leukocyte mediated immunity regulated exocytosis cell activation involved in immune response leukocyte degranulation myeloid leukocyte mediated immunity myeloid leukocyte activation neutrophil activation involved in immune response positive regulation of leukocyte degranulation positive regulation of regulated secretory pathway positive regulation of immune response establishment of localization in cell leukocyte mediated immunity regulation of immune system process positive regulation of immune system process immune effector process regulation of secretion regulation of leukocyte mediated immunity exocytosis regulation of response to stimulus positive regulation of myeloid leukocyte mediated immunity regulation of immune response cellular localization positive regulation of secretion by cell positive regulation of exocytosis leukocyte activation regulation of regulated secretory pathway positive regulation of response to stimulus neutrophil mediated immunity secretion by cell regulation of secretion by cell positive regulation of secretion regulation of neutrophil degranulation leukocyte activation involved in immune response neutrophil degranulation positive regulation of immune effector process regulation of leukocyte degranulation secretion regulation of transport cell activation export from cell regulation of vesicle-mediated transport myeloid cell activation involved in immune response positive regulation of transport regulation of exocytosis positive regulation of neutrophil degranulation granulocyte activation macrophage activation leukocyte activation involved in inflammatory response microglial cell activation inflammatory response glial cell activation neuroinflammatory response establishment of protein localization regulation of protein localization protein targeting positive regulation of establishment of protein localization regulation of protein targeting to membrane intracellular protein localization establishment of protein localization to membrane regulation of establishment of protein localization localization within membrane protein targeting to membrane regulation of cellular localization regulation of protein targeting macromolecule localization positive regulation of protein targeting to membrane receptor-mediated endocytosis cell-matrix adhesion cell-substrate adhesion cellular developmental process ectoderm development cell differentiation ectodermal cell differentiation tissue development cellular component disassembly complement-mediated synapse pruning cell junction organization cell junction disassembly synapse pruning synapse organization cellular response to stimulus immune response-regulating cell surface receptor signaling pathway complement receptor mediated signaling pathway signaling cell communication immune response-activating signaling pathway immune response-regulating signaling pathway signal transduction cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway activation of immune response amyloid-beta clearance integrin-mediated signaling pathway microglial cell mediated cytotoxicity positive regulation of leukocyte mediated cytotoxicity regulation of leukocyte mediated cytotoxicity positive regulation of microglial cell mediated cytotoxicity leukocyte mediated cytotoxicity regulation of cell killing positive regulation of cell killing regulation of microglial cell mediated cytotoxicity cell killing head development forebrain development animal organ development brain development response to mechanical stimulus response to abiotic stimulus response to amine response to nitrogen compound response to amphetamine response to bacterium response to Gram-positive bacterium response to lipid response to estradiol	membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system specific granule membrane intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system specific granule membrane intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule cell periphery cell surface plasma membrane external side of plasma membrane side of membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular membrane-bounded organelle tertiary granule membrane tertiary granule protein-containing complex plasma membrane protein complex membrane protein complex integrin complex plasma membrane signaling receptor complex signaling receptor complex protein complex involved in cell adhesion integrin alphaM-beta2 complex membrane microdomain membrane raft plasma membrane raft plasma membrane region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR033760	Integrin beta N-terminal	Domain
B	IPR036349	Integrin beta tail domain superfamily	Homologous Superfamily
B	IPR014836	Integrin beta subunit, cytoplasmic domain	Domain
B	IPR012896	Integrin beta subunit, tail	Domain
B	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
B	IPR057073	Integrin beta, epidermal growth factor-like domain 2	Domain
B	IPR032695	Integrin domain superfamily	Homologous Superfamily
B	IPR015812	Integrin beta subunit	Family
B	IPR057243	Integrins beta, I-EGF domain, conserved site	Conserved Site
B	IPR002369	Integrin beta subunit, VWA domain	Domain
B	IPR016201	PSI domain	Domain
B	IPR015439	Integrin beta-2 superfamily	Homologous Superfamily
A	IPR013517	FG-GAP repeat	Repeat
A	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
A	IPR013649	Integrin alpha, first immunoglubulin-like domain	Domain
A	IPR002035	von Willebrand factor, type A	Domain
A	IPR048285	Integrin alpha, second immunoglobulin-like domain	Domain
A	IPR032695	Integrin domain superfamily	Homologous Superfamily
A	IPR013519	Integrin alpha beta-propellor	Repeat
A	IPR000413	Integrin alpha chain	Family
A	IPR048633	Integrin alpha-X-like, third Ig-like domain	Domain
A	IPR028994	Integrin alpha, N-terminal	Homologous Superfamily
A	IPR018184	Integrin alpha chain, C-terminal cytoplasmic region, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	: P05107	leukocyte adhesion deficiency 1 acute promyelocytic leukemia Liver Cirrhosis, Experimental calcinosis leukocyte disease nephrosis dermatitis pneumonia heart valve disease leukocyte adhesion deficiency allergic disease Behcet disease Duchenne muscular dystrophy pneumonitis glioblastoma leukocyte adhesion deficiency 1 acute promyelocytic leukemia Liver Cirrhosis, Experimental calcinosis leukocyte disease nephrosis dermatitis pneumonia heart valve disease leukocyte adhesion deficiency allergic disease Behcet disease Duchenne muscular dystrophy pneumonitis glioblastoma Sjogren syndrome tuberculosis invasive ductal breast carcinoma acute myeloid leukemia astrocytic tumor lung carcinoma malignant mesothelioma cutaneous lupus erythematosus ovarian cancer Down syndrome pilocytic astrocytoma head and neck cancer IgA glomerulonephritis large cell medulloblastoma B-cell chronic lymphocytic leukemia brain cancer malignant ependymoma breast cancer pancreatic intraductal papillary-mucinous carcinoma dry eye syndrome gastric carcinoma subependymal giant cell astrocytoma interstitial cystitis ulcerative colitis lung cancer malignant glioma breast carcinoma chronic obstructive pulmonary disease osteosarcoma dermatomyositis pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia
A	: P11215	systemic lupus erythematosus acute promyelocytic leukemia systemic lupus erythematosus, susceptibility to, 6 IgA glomerulonephritis allergic contact dermatitis Crohn ileitis systemic sclerosis interstitial cystitis Libman-Sacks Disease lung disease MALT lymphoma arthritic joint disease non-small cell lung carcinoma bipolar disorder pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia systemic lupus erythematosus acute promyelocytic leukemia systemic lupus erythematosus, susceptibility to, 6 IgA glomerulonephritis allergic contact dermatitis Crohn ileitis systemic sclerosis interstitial cystitis Libman-Sacks Disease lung disease MALT lymphoma arthritic joint disease non-small cell lung carcinoma bipolar disorder pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia chronic obstructive pulmonary disease cutaneous lupus erythematosus tuberculosis Graves disease hematologic disease invasive ductal breast carcinoma lung cancer lupus erythematosus adrenal cortex carcinoma medulloblastoma astrocytic tumor osteosarcoma cancer schizophrenia colitis diffuse scleroderma ulcerative colitis Hashimoto thyroiditis large cell medulloblastoma lung carcinoma malignant mesothelioma autoimmune disease ovarian cancer central nervous system lupus subependymal giant cell astrocytoma Duchenne muscular dystrophy head and neck cancer