7NX0 | pdb_00007nx0

LTK:ALKAL1 complex stabilized by a Nanobody

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family 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 [auth D]	V-set_12	e7nx0D1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
D [auth E]	V-set_12	e7nx0E1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth E]	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 [auth D], D [auth E]	Heavy Chain	IGHV1	-	leukocyte tyrosine kinase receptor	SAbDab (2025-08-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C], C [auth B]	PF12810	ALK/LTK, Glycine-rich domain (ALK_LTK_GRD)	ALK/LTK, Glycine-rich domain	This entry represents the glycine-rich domain (GRD) from the Anaplastic lymphoma kinase (ALK), the closely related leukocyte tyrosine kinase (LTK) and similar proteins. ALK and LTK have been recently deorphanized receptor tyrosine kinases [1,2]. They ...	This entry represents the glycine-rich domain (GRD) from the Anaplastic lymphoma kinase (ALK), the closely related leukocyte tyrosine kinase (LTK) and similar proteins. ALK and LTK have been recently deorphanized receptor tyrosine kinases [1,2]. They are involved in neural development, cancer and autoimmune diseases. ALK activity is associated with learning and memory and controls energy expenditure, and inhibition of ALK can prevent diet-induced obesity [1,2]. This is an extracellular domain that regulates receptor activity by binding to activating peptides. This domain consists of fourteen long polyglycine type II (pGII) helices tightly packed into a honeycomb-like lattice [1,2]. This entry also includes proteins from Trichomonas vaginalis and some uncharacterised bacterial sequences.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], C [auth B]	Leukocyte tyrosine kinase receptor	protein tyrosine kinase activator activity enzyme regulator activity kinase activator activity enzyme activator activity receptor signaling protein tyrosine kinase activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity molecular transducer activity catalytic activity, acting on a protein kinase activity protein kinase activity protein tyrosine kinase activator activity enzyme regulator activity kinase activator activity enzyme activator activity receptor signaling protein tyrosine kinase activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity molecular transducer activity catalytic activity, acting on a protein kinase activity protein kinase activity signaling receptor activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein tyrosine kinase activity transmembrane receptor protein tyrosine kinase activity transmembrane receptor protein kinase activity transmembrane signaling receptor activity catalytic activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	protein phosphorylation protein autophosphorylation phosphorylation primary metabolic process peptidyl-tyrosine modification peptidyl-tyrosine autophosphorylation macromolecule modification peptidyl-amino acid modification phosphate-containing compound metabolic process metabolic process cellular process protein metabolic process macromolecule metabolic process peptidyl-tyrosine phosphorylation protein phosphorylation protein autophosphorylation phosphorylation primary metabolic process peptidyl-tyrosine modification peptidyl-tyrosine autophosphorylation macromolecule modification peptidyl-amino acid modification phosphate-containing compound metabolic process metabolic process cellular process protein metabolic process macromolecule metabolic process peptidyl-tyrosine phosphorylation protein modification process phosphorus metabolic process regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death cell population proliferation cellular response to stimulus response to lipid response to stimulus 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 response to chemical cellular response to lipid positive regulation of cell communication regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signal transduction signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of signaling positive regulation of intracellular signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction regulation of response to stimulus regulation of cell communication phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signaling positive regulation of cardiac muscle cell apoptotic process positive regulation of programmed cell death muscle cell apoptotic process positive regulation of striated muscle cell apoptotic process regulation of cardiac muscle cell apoptotic process regulation of muscle cell apoptotic process positive regulation of apoptotic process cardiac muscle cell apoptotic process positive regulation of muscle cell apoptotic process regulation of striated muscle cell apoptotic process striated muscle cell apoptotic process regulation of neuron projection development multicellular organismal process regulation of cellular component organization positive regulation of cellular component organization cellular developmental process cell projection organization cell development neuron projection development cellular component organization neurogenesis multicellular organism development neuron differentiation positive regulation of neuron projection development cell differentiation anatomical structure development positive regulation of cell projection organization cellular component organization or biogenesis system development developmental 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 regulation of developmental process regulation of cell differentiation regulation of neuron differentiation cell surface receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway regulation of cell population proliferation	cellular anatomical structure membrane cell periphery plasma membrane protein-containing complex receptor complex
B [auth D], D [auth E]	Nb3.16	-	-	-
E [auth A]	ALK and LTK ligand 1	protein tyrosine kinase binding protein binding binding kinase binding signaling receptor binding receptor tyrosine kinase binding enzyme binding protein kinase binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity protein tyrosine kinase binding protein binding binding kinase binding signaling receptor binding receptor tyrosine kinase binding enzyme binding protein kinase binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity protein tyrosine kinase activator activity enzyme regulator activity transmembrane receptor protein tyrosine kinase activator activity protein kinase regulator activity kinase activator activity enzyme activator activity protein kinase activator activity kinase regulator activity receptor signaling protein tyrosine kinase activator activity	regulation of neuron projection development multicellular organismal process regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization cellular developmental process cell projection organization positive regulation of biological process cell development neuron projection development cellular component organization neurogenesis multicellular organism development neuron differentiation positive regulation of neuron projection development regulation of neuron projection development multicellular organismal process regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization cellular developmental process cell projection organization positive regulation of biological process cell development neuron projection development cellular component organization neurogenesis multicellular organism development neuron differentiation positive regulation of neuron projection development cell differentiation anatomical structure development positive regulation of cell projection organization cellular component organization or biogenesis positive regulation of cellular process system development developmental process regulation of biological process plasma membrane bounded cell projection organization regulation of cell projection organization biological regulation nervous system development generation of neurons neuron development cellular process regulation of plasma membrane bounded cell projection organization cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of MAPK cascade positive regulation of ERK5 cascade positive regulation of intracellular signal transduction regulation of MAPK cascade ERK5 cascade regulation of ERK5 cascade regulation of response to stimulus MAPK cascade regulation of cell communication positive regulation of signaling positive regulation of ERK1 and ERK2 cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade cell surface receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway	cell periphery cellular anatomical structure plasma membrane membrane extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C], C [auth B]	IPR017441	Protein kinase, ATP binding site	Binding Site
A [auth C], C [auth B]	IPR055163	ALK/LTK-like, glycine-rich domain	Domain
A [auth C], C [auth B]	IPR008266	Tyrosine-protein kinase, active site	Active Site
A [auth C], C [auth B]	IPR020635	Tyrosine-protein kinase, catalytic domain	Domain
A [auth C], C [auth B]	IPR000719	Protein kinase domain	Domain
A [auth C], C [auth B]	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A [auth C], C [auth B]	IPR002011	Tyrosine-protein kinase, receptor class II, conserved site	Conserved Site
A [auth C], C [auth B]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A [auth C], C [auth B]	IPR050122	Receptor Tyrosine Kinase	Family
E [auth A]	IPR029364	ALK and LTK ligand 1/2	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth C], C [auth B]	Pharos: P29376	polycystic ovary syndrome systemic lupus erythematosus ALK fusion gene-positive non-small-cell lung cancer large cell medulloblastoma metabolic syndrome X pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ulcerative colitis allergic rhinitis lupus erythematosus non-small cell lung carcinoma peripheral nervous system disease atypical teratoid rhabdoid tumor medulloblastoma ovarian cancer peripheral neuropathy

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.