Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species
A	d1kf9a_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Growth hormone, somatotropin	Human (Homo sapiens) [TaxId: 9606]
B233-328	d1kf9b1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
B329-436	d1kf9b2	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
C533-628	d1kf9c1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
C629-734	d1kf9c2	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
D	d1kf9d_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Growth hormone, somatotropin	Human (Homo sapiens) [TaxId: 9606]
E1233-1328	d1kf9e1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
E1329-1434	d1kf9e2	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
F1533-1628	d1kf9f1	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]
F1629-1734	d1kf9f2	All beta proteins	Immunoglobulin-like beta-sandwich	Fibronectin type III	Fibronectin type III	Growth hormone receptor	Human (Homo sapiens) [TaxId: 9606]

Chains	Domain	Class	Architecture	Topology	Homology
A	1kf9A00	Mainly Alpha	Up-down Bundle	Growth Hormone; Chain: A;
B1	1kf9B01	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
B2	1kf9B02	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
C1	1kf9C01	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
C2	1kf9C02	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
D	1kf9D00	Mainly Alpha	Up-down Bundle	Growth Hormone; Chain: A;
E1	1kf9E01	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
E2	1kf9E02	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
F1	1kf9F01	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
F2	1kf9F02	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A,D	PHAGE DISPLAY DERIVED VARIANT HUMAN GROWTH HORMONE (1KF9:A,D)	Growth Hormone Receptor Binding Prolactin Receptor Binding Hormone Activity Protein Binding Growth Factor Activity Metal Ion Binding	Positive Regulation of Receptor Internalization Regulation of Signaling Receptor Activity Positive Regulation of Activation of Janus Kinase Activity Positive Regulation of Glucose Transmembrane Transport Positive Regulation of Phosphatidylinositol 3 Kinase Signaling Response to Estradiol Positive Regulation of Multicellular Organism Growth Positive Regulation of Tyrosine Phosphorylation of Stat Protein Positive Regulation of Map Kinase Activity Positive Regulation of Insulin Like Growth Factor Receptor Signaling Pathway Positive Regulation of Jak Stat Cascade Positive Regulation of Peptidyl Tyrosine Phosphorylation Growth Hormone Receptor Signaling Pathway Jak Stat Cascade Involved in Growth Hormone Signaling Pathway Bone Maturation	Extracellular Region Extracellular Space Endosome Lumen Growth Hormone Receptor Complex
B,C,E,F	EXTRACELLULAR DOMAIN HUMAN GROWTH HORMONE RECEPTOR (1- 238) (1KF9:B,C,E,F)	Cytokine Receptor Activity	none	Membrane

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139555 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

1KF9

PHAGE DISPLAY DERIVED VARIANT OF HUMAN GROWTH HORMONE COMPLEXED WITH TWO COPIES OF THE EXTRACELLULAR DOMAIN OF ITS RECEPTOR

Macromolecule Annotations for the Entities in PDB 1KF9

Domain Annotation: SCOP Classification SCOP Database (version: 1.75) Homepage

Domain Annotation: CATH CATH Database (version 4.0.0) Homepage

Protein Family Annotation Pfam Database Homepage

Gene Product Annotation Gene Ontology Consortium Homepage

Protein Modification Annotation