1LKI

THE CRYSTAL STRUCTURE AND BIOLOGICAL FUNCTION OF LEUKEMIA INHIBITORY FACTOR: IMPLICATIONS FOR RECEPTOR BINDING

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 Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1lkia_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Leukemia inhibitory factor (LIF)	house 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	Long-chain cytokines	8024690	4000851	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	4-helical cytokines	8037069	3001717	SCOP2 (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	LIF_OSM	e1lkiA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: LIF_OSM	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01291	LIF / OSM family (LIF_OSM)	LIF / OSM family	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	LEUKEMIA INHIBITORY FACTOR	protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity cytokine activity cytokine receptor binding leukemia inhibitory factor receptor binding	regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process organic substance biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process organic substance biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process positive regulation of cellular biosynthetic process developmental process multicellular organismal process sensory organ development eye development animal organ development retina development in camera-type eye visual system development multicellular organism development camera-type eye development anatomical structure development sensory system development system development cell population proliferation cell differentiation involved in embryonic placenta development cellular developmental process placenta development reproductive process chordate embryonic development developmental process involved in reproduction embryo development tissue development in utero embryonic development spongiotrophoblast differentiation embryonic placenta development embryo development ending in birth or egg hatching cell differentiation spongiotrophoblast layer development embryonic organ development positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process regulation of peptidyl-serine phosphorylation positive regulation of phosphate metabolic process peptidyl-serine modification regulation of primary metabolic process positive regulation of protein modification process peptidyl-serine phosphorylation regulation of phosphate metabolic process phosphate-containing compound metabolic process peptidyl-amino acid modification protein metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein modification process organonitrogen compound metabolic process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of protein metabolic process primary metabolic process positive regulation of peptidyl-serine phosphorylation macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation cellular response to stimulus response to stimulus signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction intracellular signal transduction negative regulation of cell communication cell communication regulation of intracellular signal transduction intracellular signaling cassette negative regulation of cellular process signal transduction regulation of signaling negative regulation of response to stimulus regulation of MAPK cascade negative regulation of signal transduction negative regulation of ERK1 and ERK2 cascade regulation of response to stimulus MAPK cascade regulation of cell communication ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade negative regulation of MAPK cascade cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cell projection organization cell development 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 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 leukemia inhibitory factor signaling pathway enzyme-linked receptor protein signaling pathway fibroblast proliferation muscle structure development anatomical structure morphogenesis animal organ morphogenesis muscle organ development muscle organ morphogenesis cell morphogenesis positive regulation of cell communication regulation of localization system process nitrogen compound transport regulation of system process localization regulation of biological quality regulation of peptide hormone secretion positive regulation of corticotropin secretion regulation of hormone levels positive regulation of peptide hormone secretion organic substance transport establishment of localization regulation of secretion endocrine hormone secretion positive regulation of multicellular organismal process regulation of endocrine process regulation of hormone secretion regulation of peptide secretion transport positive regulation of secretion by cell hormone secretion regulation of corticotropin secretion peptide secretion secretion by cell regulation of secretion by cell positive regulation of hormone secretion positive regulation of secretion amide transport signal release regulation of multicellular organismal process positive regulation of peptide secretion secretion regulation of transport corticotropin secretion regulation of peptide transport cell-cell signaling export from cell peptide transport endocrine process positive regulation of transport peptide hormone secretion hormone transport positive regulation of signaling response to decreased oxygen levels response to hypoxia response to stress response to oxygen levels response to abiotic stimulus sexual reproduction organelle fission meiotic cell cycle meiotic cell cycle process nuclear division organelle organization meiotic nuclear division cell cycle cell cycle process kidney epithelium development renal vesicle morphogenesis regulation of cell differentiation epithelial cell differentiation regulation of epithelial cell differentiation positive regulation of developmental process metanephros development metanephros morphogenesis regulation of epithelial cell differentiation involved in kidney development nephron development epithelium development positive regulation of epithelial cell differentiation regulation of developmental process nephron morphogenesis nephron epithelium morphogenesis regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis metanephric renal vesicle morphogenesis renal vesicle development renal system development positive regulation of epithelial cell differentiation involved in kidney development positive regulation of cell differentiation positive regulation of morphogenesis of an epithelium regulation of morphogenesis of an epithelium metanephric nephron development regulation of anatomical structure morphogenesis mesenchymal to epithelial transition involved in metanephros morphogenesis epithelial cell differentiation involved in kidney development nephron epithelium development regulation of multicellular organismal development morphogenesis of an epithelium mesenchymal to epithelial transition positive regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis metanephric nephron morphogenesis cell differentiation involved in metanephros development tissue morphogenesis kidney morphogenesis cell differentiation involved in kidney development kidney development myeloid leukocyte differentiation regulation of leukocyte differentiation mononuclear cell differentiation regulation of cell development positive regulation of hemopoiesis regulation of immune system process regulation of macrophage differentiation positive regulation of immune system process hemopoiesis regulation of myeloid cell differentiation positive regulation of cell development macrophage differentiation regulation of myeloid leukocyte differentiation positive regulation of myeloid leukocyte differentiation positive regulation of macrophage differentiation myeloid cell differentiation immune system process positive regulation of myeloid cell differentiation regulation of hemopoiesis positive regulation of leukocyte differentiation leukocyte differentiation somatic stem cell population maintenance maintenance of cell number stem cell population maintenance nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process organic cyclic compound metabolic process organic cyclic compound biosynthetic process regulation of DNA-templated transcription positive regulation of DNA-templated transcription RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process regulation of RNA biosynthetic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA biosynthetic process tube development lung lobe morphogenesis respiratory tube development lung lobe development lung development respiratory system development lung morphogenesis immune response multi-multicellular organism process maternal process involved in female pregnancy multicellular organismal reproductive process female pregnancy multi-organism reproductive process positive regulation of cell population proliferation regulation of fibroblast proliferation regulation of cell population proliferation positive regulation of fibroblast proliferation metanephric nephron tubule epithelial cell differentiation metanephric epithelium development nephron tubule development renal tubule development regulation of nephron tubule epithelial cell differentiation regulation of metanephric nephron tubule epithelial cell differentiation metanephric nephron epithelium development metanephric nephron tubule development nephron tubule epithelial cell differentiation metanephric tubule development negative regulation of transport negative regulation of secretion negative regulation of hormone secretion negative regulation of secretion by cell trophoblast giant cell differentiation embryo implantation positive regulation of cell adhesion mediated by integrin positive regulation of cell adhesion regulation of cell adhesion mediated by integrin regulation of cell adhesion cell adhesion cell adhesion mediated by integrin astrocyte differentiation central nervous system development gliogenesis glial cell differentiation positive regulation of signal transduction positive regulation of response to stimulus positive regulation of MAPK cascade positive regulation of intracellular signal transduction blood vessel remodeling tissue remodeling negative regulation of cell population proliferation maternal placenta development decidualization tyrosine phosphorylation of STAT protein peptidyl-tyrosine modification positive regulation of peptidyl-tyrosine phosphorylation regulation of tyrosine phosphorylation of STAT protein regulation of peptidyl-tyrosine phosphorylation positive regulation of tyrosine phosphorylation of STAT protein peptidyl-tyrosine phosphorylation cell surface receptor signaling pathway via JAK-STAT transdifferentiation animal organ regeneration regeneration angiogenesis regulation of vasculature development tube morphogenesis blood vessel development blood vessel morphogenesis negative regulation of blood vessel morphogenesis negative regulation of developmental process negative regulation of angiogenesis vasculature development circulatory system development negative regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis negative regulation of multicellular organismal process regulation of reproductive process negative regulation of cell cycle regulation of cell cycle negative regulation of meiotic nuclear division regulation of meiotic cell cycle negative regulation of cellular component organization regulation of cell cycle process negative regulation of cell cycle process regulation of organelle organization regulation of meiotic nuclear division negative regulation of nuclear division negative regulation of organelle organization negative regulation of reproductive process regulation of nuclear division negative regulation of meiotic cell cycle stem cell differentiation lung vasculature development lung alveolus development positive regulation of nervous system development regulation of neurogenesis regulation of gliogenesis regulation of astrocyte differentiation positive regulation of gliogenesis regulation of nervous system development positive regulation of neurogenesis positive regulation of astrocyte differentiation regulation of glial cell differentiation positive regulation of glial cell differentiation regulation of receptor signaling pathway via JAK-STAT positive regulation of peptidyl-serine phosphorylation of STAT protein serine phosphorylation of STAT protein regulation of receptor signaling pathway via STAT regulation of peptidyl-serine phosphorylation of STAT protein	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001581	Leukemia inhibitory factor /oncostatin	Family
A	IPR019827	Leukemia inhibitory factor /oncostatin, conserved site	Conserved Site
A	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily
A	IPR003624	Leukemia inhibitory factor	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.