1F6F

CRYSTAL STRUCTURE OF THE TERNARY COMPLEX BETWEEN OVINE PLACENTAL LACTOGEN AND THE EXTRACELLULAR DOMAIN OF THE RAT PROLACTIN RECEPTOR

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	d1f6fa_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Prolactin (placental lactogen)	sheep (Ovis aries ) [TaxId: 9940 ],	SCOPe (2.08)
B	d1f6fb1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Prolactin receptor	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
C	d1f6fc1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Prolactin receptor	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	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	8024701	4000851	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	4-helical cytokines	8037080	3001717	SCOP2 (2022-06-29)
B	SCOP2 Family	Fibronectin type III	8055132	4007555	SCOP2 (2022-06-29)
B	SCOP2 Family	Fibronectin type III	8055516	4007555	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Fibronectin type III	8055133	3002063	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Fibronectin type III	8055517	3002063	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Fibronectin type III	8055517	3002063	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Fibronectin type III	8055133	3002063	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	Hormone_1	e1f6fA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: Hormone_1	ECOD (1.6)
B	EpoR_lig-bind	e1f6fB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: EpoR_lig-bind	ECOD (1.6)
B	fn3_6	e1f6fB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: fn3_6	ECOD (1.6)
C	EpoR_lig-bind	e1f6fC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: EpoR_lig-bind	ECOD (1.6)
C	fn3_6	e1f6fC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: fn3_6	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)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00103	Somatotropin hormone family (Hormone_1)	Somatotropin hormone family		Domain
B, C	PF00041	Fibronectin type III domain (fn3)	Fibronectin type III domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PLACENTAL LACTOGEN	protein binding binding signaling receptor binding cytokine receptor binding prolactin receptor binding hormone activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	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 response to nutrient levels response to stimulus developmental process mammary gland development gland development 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 response to nutrient levels response to stimulus developmental process mammary gland development gland development animal organ development anatomical structure development multi-multicellular organism process multicellular organismal process reproductive process female pregnancy multi-organism reproductive process cellular response to stimulus positive regulation of cell communication cell surface receptor signaling pathway via STAT positive regulation of signal transduction signaling positive regulation of receptor signaling pathway via STAT regulation of signal transduction positive regulation of receptor signaling pathway via JAK-STAT cell communication positive regulation of response to stimulus regulation of receptor signaling pathway via JAK-STAT signal transduction regulation of signaling cell surface receptor signaling pathway regulation of response to stimulus regulation of cell communication regulation of receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT positive regulation of signaling regulation of localization regulation of body fluid levels regulation of developmental process transport positive regulation of developmental process localization multicellular organism development positive regulation of secretion lactation regulation of multicellular organismal process regulation of biological quality regulation of multicellular organismal development regulation of transport secretion establishment of localization regulation of secretion body fluid secretion positive regulation of transport positive regulation of lactation regulation of lactation positive regulation of multicellular organismal process	cellular anatomical structure extracellular region extracellular space
B, C	PROLACTIN RECEPTOR	protein binding binding cytokine binding kinase binding enzyme binding protein kinase binding lipid binding amide binding peptide hormone binding hormone binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity protein binding binding cytokine binding kinase binding enzyme binding protein kinase binding lipid binding amide binding peptide hormone binding hormone binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity prolactin receptor activity cation binding ion binding metal ion binding small molecule binding	regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular process cellular response to stimulus cell surface receptor signaling pathway response to stimulus signaling response to cytokine cytokine-mediated signaling pathway cell communication response to peptide regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular process cellular response to stimulus cell surface receptor signaling pathway response to stimulus signaling response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular response to cytokine stimulus signal transduction developmental process mammary gland epithelial cell differentiation epithelium development cellular developmental process mammary gland development gland development animal organ development tissue development epithelial cell differentiation mammary gland epithelium development cell differentiation anatomical structure development negative regulation of programmed cell death regulation of apoptotic process 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 positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of biological process positive regulation of cellular process response to granulocyte macrophage colony-stimulating factor cellular response to granulocyte macrophage colony-stimulating factor stimulus cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT multicellular organismal process homeostatic process adaptive thermogenesis positive regulation of metabolic process multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis positive regulation of multicellular organismal process metabolic process regulation of multicellular organismal process regulation of metabolic process biological process involved in interspecies interaction between organisms response to other organism response to bacterium response to external stimulus response to external biotic stimulus response to biotic stimulus regulation of body fluid levels secretion transport establishment of localization body fluid secretion localization lactation regulation of biological quality positive regulation of B cell proliferation regulation of leukocyte activation regulation of cell activation lymphocyte activation leukocyte proliferation leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation positive regulation of leukocyte activation positive regulation of mononuclear cell proliferation regulation of immune system process positive regulation of immune system process regulation of lymphocyte proliferation regulation of leukocyte proliferation B cell activation cell activation positive regulation of lymphocyte proliferation B cell proliferation positive regulation of B cell activation mononuclear cell proliferation immune system process positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation reproductive system development developmental growth prostate gland development reproductive process growth urogenital system development organ growth developmental process involved in reproduction multicellular organism development reproductive structure development prostate gland growth system development mammary gland lobule development mammary gland alveolus development regulation of multicellular organismal development regulation of developmental process regulation of cell differentiation regulation of epithelial cell differentiation	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane protein-containing complex receptor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001400	Somatotropin/prolactin	Family
A	IPR018116	Somatotropin hormone, conserved site	Conserved Site
A	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily
B, C	IPR015152	Growth hormone/erythropoietin receptor, ligand binding	Domain
B, C	IPR050379	Type I Cytokine Receptor	Family
B, C	IPR003961	Fibronectin type III	Domain
B, C	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B, C	IPR003528	Long hematopoietin receptor, single chain, conserved site	Conserved Site
B, C	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

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.