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Protein Page:
IGF1 (human)
p Phosphorylation
ac Acetylation
me Methylation
m1 Mono-methylation
m2 Di-methylation
m3 Tri-methylation
ub Ubiquitination
sm Sumoylation
ne Neddylation
gl O-GlcNAc
ga O-GalNAc
pa Palmitoylation
ad Adenylylation
sn S-Nitrosylation
ca Caspase cleavage
sc Succinylation

Overview
IGF1 The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in rat bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. Defects in IGF1 are the cause of insulin-like growth factor I deficiency (IGF1 deficiency). IGF1 deficiency is an autosomal recessive disorder characterized by growth retardation, sensorineural deafness and mental retardation. Belongs to the insulin family. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Secreted, signal peptide; Motility/polarity/chemotaxis; Secreted
Cellular Component: insulin-like growth factor binding protein complex; extracellular space; plasma membrane; extracellular region
Molecular Function: integrin binding; insulin-like growth factor receptor binding; protein binding; growth factor activity; hormone activity; insulin receptor binding
Biological Process: muscle development; positive regulation of transcription, DNA-dependent; chondroitin sulfate proteoglycan biosynthetic process; exocrine pancreas development; glycolate metabolic process; water homeostasis; positive regulation of glucose import; positive regulation of fibroblast proliferation; proteoglycan biosynthetic process; inner ear development; positive regulation of DNA binding; muscle hypertrophy; platelet activation; positive regulation of mitosis; positive regulation of protein import into nucleus, translocation; regulation of establishment and/or maintenance of cell polarity; positive regulation of phosphoinositide 3-kinase cascade; cell activation; positive regulation of peptidyl-tyrosine phosphorylation; branching morphogenesis of a tube; insulin-like growth factor receptor signaling pathway; positive regulation of transcription from RNA polymerase II promoter; alveolus development; positive regulation of epithelial cell proliferation; positive regulation of insulin-like growth factor receptor signaling pathway; positive regulation of smooth muscle cell proliferation; myoblast proliferation; positive regulation of glycogen biosynthetic process; positive regulation of smooth muscle cell migration; positive regulation of activated T cell proliferation; signal transduction; negative regulation of cell proliferation; glial cell differentiation; platelet degranulation; mammary gland development; positive regulation of MAPKKK cascade; positive regulation of cell proliferation; DNA replication; skeletal development; positive regulation of granule cell precursor proliferation; phosphoinositide-mediated signaling; multicellular organism growth; myotube cell development; regulation of multicellular organism growth; satellite cell compartment self-renewal involved in skeletal muscle regeneration; myoblast differentiation; positive regulation of osteoblast differentiation; positive regulation of protein kinase B signaling cascade; cellular protein metabolic process; positive regulation of tyrosine phosphorylation of Stat5 protein; positive regulation of glycolysis; Ras protein signal transduction; blood vessel remodeling; positive regulation of Ras protein signal transduction; blood coagulation; cell motility; positive regulation of DNA replication
Reference #:  P05019 (UniProtKB)
Alt. Names/Synonyms: IBP1; IGF-IA; IGF-IB; IGF1; IGF1A; IGFI; insulin-like growth factor 1 (somatomedin C); Insulin-like growth factor IA; insulin-like growth factor IB; Mechano growth factor; MGF; Somatomedin-C
Gene Symbols: IGF1
Molecular weight: 21,841 Da
Basal Isoelectric point: 9.78  Predict pI for various phosphorylation states
Select Structure to View Below

IGF1

Protein Structure Not Found.


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Modification Sites and Domains Show Modification Legend
Click here to view phosphorylation modifications only

Modification Sites in Parent Protein, Orthologs, and Isoforms Show Modification Legend
 

Show Multiple Sequence Alignment


 SS 

SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.


 MS 

MS: The number of records in which this modification site was assigned using ONLY proteomic discovery-mode mass spectrometry.


       human

► Hide Isoforms
 
0 1 K75 DRGFYFNKPTGYGSS
0 1 Y135-p DMPKTQKyQPPSTNK
0 7 - gap
0 1 S184-p EQRREIGsRNAECRG
  IGF1 iso2  
K75 DRGFYFNKPTGYGSS
- gap
Y151-p GSAGNKNyRM_____
- gap
  mouse

► Hide Isoforms
 
K75-ub PRGFYFNkPTGYGSS
- gap
Y151 GSAGNKTYRM_____
- gap
  IGF1 iso2  
K75 PRGFYFNKPTGYGSS
- gap
- gap
- gap
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