4TZI

Structure of unliganded Lyn SH2 domain

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4tzia_	Alpha and beta proteins (a+b)	SH2-like	SH2 domain	SH2 domain	automated matches	Mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d4tzib_	Alpha and beta proteins (a+b)	SH2-like	SH2 domain	SH2 domain	automated matches	Mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SH2 domain	8064751	4001650	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SH2 domain	8064752	3000197	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	SH2 domain	8064752	3000197	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	SH2	e4tziA1	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)
B	SH2	e4tziB1	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	CATH (4.3.0)
B	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00017	SH2 domain (SH2)	SH2 domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Tyrosine-protein kinase Lyn	protein binding binding signaling receptor binding platelet-derived growth factor receptor binding growth factor receptor binding protein tyrosine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups SH3 domain binding protein binding binding signaling receptor binding platelet-derived growth factor receptor binding growth factor receptor binding protein tyrosine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups SH3 domain binding protein domain specific binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding non-membrane spanning protein tyrosine kinase activity protein-containing complex binding phosphatidylinositol 3-kinase activator activity enzyme regulator activity molecular function regulator activity phosphatidylinositol 3-kinase regulator activity kinase regulator activity ephrin receptor binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding scaffold protein binding phosphoprotein binding cytokine receptor binding erythropoietin receptor binding glycosphingolipid binding sphingolipid binding lipid binding glycolipid binding cytoskeletal protein binding gamma-tubulin binding tubulin binding transmembrane transporter binding cell adhesion molecule binding integrin binding phosphorylation-dependent protein binding modification-dependent protein binding	response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction negative regulation of cellular metabolic process regulation of primary metabolic process response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction negative regulation of cellular metabolic process regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process intracellular signaling cassette negative regulation of protein modification process signal transduction phosphorus metabolic process protein modification process negative regulation of protein metabolic process regulation of biological process protein phosphorylation phosphorylation cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of cellular metabolic process primary metabolic process regulation of MAPK cascade regulation of molecular function regulation of kinase activity regulation of response to stimulus negative regulation of protein phosphorylation regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of phosphate metabolic process negative regulation of cell communication regulation of intracellular signal transduction negative regulation of protein serine/threonine kinase activity negative regulation of cellular process protein metabolic process negative regulation of macromolecule metabolic process regulation of signaling negative regulation of response to stimulus biological regulation negative regulation of molecular function negative regulation of MAP kinase activity regulation of protein kinase activity regulation of macromolecule metabolic process negative regulation of protein kinase activity negative regulation of signal transduction negative regulation of phosphorus metabolic process MAPK cascade regulation of cell communication regulation of phosphorylation cellular process negative regulation of phosphorylation negative regulation of MAPK cascade immune system development developmental process multicellular organism development multicellular organismal process tolerance induction to self antigen immune system process anatomical structure development tolerance induction system development cellular response to heat cellular response to stress response to stress response to heat response to abiotic stimulus response to temperature stimulus regulation of leukocyte apoptotic process regulation of lymphocyte apoptotic process regulation of B cell apoptotic process leukocyte apoptotic process regulation of apoptotic process B cell apoptotic process regulation of programmed cell death cell death lymphocyte apoptotic process apoptotic process programmed cell death establishment of organelle localization regulated exocytosis nitrogen compound transport cell activation involved in immune response leukocyte degranulation vesicle-mediated transport myeloid leukocyte activation myeloid leukocyte mediated immunity localization establishment of localization in cell leukocyte mediated immunity regulation of biological quality immune response regulation of hormone levels histamine secretion by mast cell vacuolar localization establishment of localization mast cell degranulation immune effector process histamine secretion involved in inflammatory response exocytosis lysosome localization inflammatory response histamine production involved in inflammatory response cellular localization transport hormone secretion histamine secretion leukocyte activation secretion by cell organelle localization signal release leukocyte activation involved in immune response histamine transport mast cell activation mast cell mediated immunity production of molecular mediator involved in inflammatory response secretion defense response cell activation export from cell cell-cell signaling myeloid cell activation involved in immune response mast cell activation involved in immune response exocytic process hormone transport cellular developmental process hemopoiesis cell differentiation cell development negative regulation of ERK1 and ERK2 cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade B cell homeostasis multicellular organismal-level homeostasis leukocyte homeostasis homeostatic process homeostasis of number of cells lymphocyte homeostasis response to lipid response to oxygen-containing compound cellular response to oxygen-containing compound response to retinoic acid cellular response to chemical stimulus cellular response to retinoic acid cellular response to lipid response to toxic substance regulation of developmental process regulation of cell differentiation regulation of cell development regulation of immune system process regulation of multicellular organismal process myeloid cell homeostasis erythrocyte homeostasis regulation of multicellular organismal development regulation of myeloid cell differentiation erythrocyte differentiation regulation of erythrocyte differentiation myeloid cell differentiation regulation of hemopoiesis positive regulation of response to biotic stimulus immune response-regulating cell surface receptor signaling pathway pattern recognition receptor signaling pathway response to biotic stimulus immune response-activating signaling pathway negative regulation of toll-like receptor 2 signaling pathway positive regulation of immune response positive regulation of immune system process cell surface toll-like receptor signaling pathway innate immune response-activating signaling pathway response to other organism immune response-activating cell surface receptor signaling pathway regulation of innate immune response response to external stimulus regulation of toll-like receptor 2 signaling pathway defense response to other organism regulation of pattern recognition receptor signaling pathway positive regulation of defense response activation of innate immune response regulation of immune response activation of immune response regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of response to external stimulus positive regulation of biological process innate immune response activating cell surface receptor signaling pathway positive regulation of response to stimulus positive regulation of response to external stimulus immune response-regulating signaling pathway regulation of response to stress innate immune response toll-like receptor 2 signaling pathway response to external biotic stimulus cell surface pattern recognition receptor signaling pathway positive regulation of innate immune response cell surface receptor signaling pathway defense response to symbiont negative regulation of immune system process regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cell projection organization neuron projection development cellular component organization neurogenesis neuron differentiation positive regulation of neuron projection development positive regulation of cell projection organization cellular component organization or biogenesis positive regulation of cellular process plasma membrane bounded cell projection organization regulation of cell projection organization nervous system development generation of neurons neuron development regulation of plasma membrane bounded cell projection organization response to cytokine cytokine-mediated signaling pathway response to peptide cellular response to cytokine stimulus interleukin-5-mediated signaling pathway response to sterol depletion regulation of leukocyte proliferation negative regulation of cell population proliferation cell population proliferation leukocyte proliferation negative regulation of leukocyte proliferation regulation of mast cell proliferation regulation of cell population proliferation negative regulation of mast cell proliferation mast cell proliferation positive regulation of cell communication positive regulation of signal transduction regulation of Fc receptor mediated stimulatory signaling pathway Fc receptor mediated stimulatory signaling pathway positive regulation of Fc receptor mediated stimulatory signaling pathway positive regulation of signaling regulation of biosynthetic process cellular biosynthetic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process regulation of cytokine production cytokine production regulation of macromolecule biosynthetic process positive regulation of cell population proliferation regulation of cell motility regulation of monocyte chemotaxis taxis regulation of cell migration myeloid leukocyte migration cell migration cell motility regulation of mononuclear cell migration locomotion cell chemotaxis chemotaxis regulation of leukocyte chemotaxis regulation of leukocyte migration regulation of chemotaxis monocyte chemotaxis leukocyte migration regulation of locomotion mononuclear cell migration leukocyte chemotaxis positive regulation of locomotion positive regulation of cell migration positive regulation of cell motility response to hormone response to endogenous stimulus response to peptide hormone response to insulin response to nitrogen compound response to chemokine cellular response to chemokine chemokine-mediated signaling pathway G protein-coupled receptor signaling pathway C-X-C chemokine receptor CXCR4 signaling pathway positive regulation of phosphorylation positive regulation of phosphorus metabolic process positive regulation of cellular metabolic process positive regulation of phosphate metabolic process positive regulation of metabolic process positive regulation of nervous system development regulation of neurogenesis regulation of gliogenesis positive regulation of glial cell proliferation positive regulation of gliogenesis regulation of nervous system development positive regulation of developmental process regulation of glial cell proliferation gliogenesis positive regulation of cell differentiation positive regulation of neurogenesis positive regulation of cell development positive regulation of multicellular organismal process glial cell proliferation regulation of leukocyte differentiation myeloid leukocyte differentiation negative regulation of cell differentiation negative regulation of hemopoiesis negative regulation of leukocyte differentiation negative regulation of developmental process negative regulation of myeloid cell differentiation regulation of myeloid leukocyte differentiation negative regulation of myeloid leukocyte differentiation negative regulation of cell development negative regulation of multicellular organismal process leukocyte differentiation response to carbohydrate regulation of B cell receptor signaling pathway regulation of antigen receptor-mediated signaling pathway B cell receptor signaling pathway antigen receptor-mediated signaling pathway DNA damage response regulation of toll-like receptor 4 signaling pathway negative regulation of toll-like receptor 4 signaling pathway toll-like receptor 4 signaling pathway response to wounding response to axon injury negative regulation of lymphocyte proliferation regulation of leukocyte activation regulation of cell activation lymphocyte activation negative regulation of lymphocyte activation negative regulation of mononuclear cell proliferation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation negative regulation of B cell activation regulation of lymphocyte proliferation B cell activation B cell proliferation negative regulation of B cell proliferation negative regulation of cell activation mononuclear cell proliferation regulation of mononuclear cell proliferation negative regulation of leukocyte activation regulation of lymphocyte activation adaptive immune response eosinophil differentiation granulocyte differentiation oligodendrocyte progenitor proliferation positive regulation of oligodendrocyte progenitor proliferation regulation of neural precursor cell proliferation positive regulation of neural precursor cell proliferation neural precursor cell proliferation regulation of oligodendrocyte progenitor proliferation positive regulation of mast cell proliferation positive regulation of leukocyte proliferation protein autophosphorylation dendritic cell differentiation mononuclear cell differentiation regulation of mast cell activation regulation of calcium ion transport regulation of localization intracellular calcium ion homeostasis calcium ion transport monoatomic cation homeostasis monoatomic cation transport intracellular monoatomic ion homeostasis regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport inorganic ion transmembrane transport inorganic cation transmembrane transport maintenance of location transmembrane transport release of sequestered calcium ion into cytosol regulation of transmembrane transport chemical homeostasis inorganic ion homeostasis monoatomic ion transmembrane transport calcium ion homeostasis regulation of monoatomic ion transmembrane transport negative regulation of sequestering of calcium ion metal ion transport maintenance of location in cell regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport intracellular monoatomic cation homeostasis monoatomic ion homeostasis monoatomic ion transport intracellular chemical homeostasis regulation of metal ion transport regulation of sequestering of calcium ion calcium ion transmembrane import into cytosol regulation of transport sequestering of calcium ion cellular homeostasis regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport DNA damage checkpoint signaling regulation of cell cycle phase transition negative regulation of cell cycle cell cycle phase transition negative regulation of cell cycle phase transition cell cycle regulation of cell cycle cell cycle process regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling signal transduction in response to DNA damage Fc receptor mediated inhibitory signaling pathway immune response-inhibiting cell surface receptor signaling pathway immune response-inhibiting signal transduction dendritic cell apoptotic process positive regulation of programmed cell death positive regulation of dendritic cell apoptotic process positive regulation of apoptotic process regulation of dendritic cell apoptotic process positive regulation of leukocyte apoptotic process response to acid chemical response to amino acid cell adhesion cell adhesion mediated by integrin regulation of cell adhesion mediated by integrin regulation of cell adhesion cellular response to lipopolysaccharide lipopolysaccharide-mediated signaling pathway cellular response to biotic stimulus response to bacterium cellular response to molecule of bacterial origin response to lipopolysaccharide response to molecule of bacterial origin peptidyl-tyrosine modification peptidyl-amino acid modification peptidyl-tyrosine phosphorylation oligodendrocyte development glial cell development central nervous system development oligodendrocyte differentiation glial cell differentiation positive regulation of MAPK cascade positive regulation of intracellular signal transduction hemoglobin biosynthetic process hemoglobin metabolic process regulation of inflammatory response cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway platelet degranulation regulation of body fluid levels homotypic cell-cell adhesion cell-cell adhesion coagulation regulation of cell-cell adhesion wound healing regulation of homotypic cell-cell adhesion hemostasis platelet aggregation blood coagulation regulation of platelet activation regulation of platelet aggregation platelet activation positive regulation of protein metabolic process positive regulation of protein modification process positive regulation of macromolecule metabolic process positive regulation of protein phosphorylation hematopoietic progenitor cell differentiation response to organic cyclic compound regulation of immune effector process regulation of myeloid leukocyte mediated immunity regulation of secretion regulation of leukocyte mediated immunity regulation of mast cell degranulation regulation of regulated secretory pathway regulation of secretion by cell regulation of leukocyte degranulation regulation of vesicle-mediated transport regulation of exocytosis	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell surface cell periphery plasma membrane membrane membrane microdomain membrane raft membrane-bounded organelle mitochondrial membrane organelle inner membrane mitochondrion intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell surface cell periphery plasma membrane membrane membrane microdomain membrane raft membrane-bounded organelle mitochondrial membrane organelle inner membrane mitochondrion intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope mitochondrial envelope organelle mitochondrial crista organelle membrane protein-containing complex plasma membrane protein complex membrane protein complex receptor complex integrin alpha2-beta1 complex integrin complex plasma membrane signaling receptor complex protein complex involved in cell adhesion postsynaptic specialization synapse postsynaptic specialization, intracellular component postsynapse intracellular non-membrane-bounded organelle cell junction non-membrane-bounded organelle glutamatergic synapse cell-cell junction adherens junction anchoring junction Golgi apparatus endomembrane system perinuclear region of cytoplasm cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR020635	Tyrosine-protein kinase, catalytic domain	Domain
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR036860	SH2 domain superfamily	Homologous Superfamily
A, B	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A, B	IPR035852	Tyrosine-protein kinase Lyn, SH2 domain	Domain
A, B	IPR008266	Tyrosine-protein kinase, active site	Active Site
A, B	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A, B	IPR035748	Tyrosine-protein kinase Lyn, SH3 domain	Domain
A, B	IPR001452	SH3 domain	Domain
A, B	IPR000980	SH2 domain	Domain
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR050198	Non-receptor tyrosine kinases involved in cell signaling	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 R01GM157729.