Product nameRecombinant human Growth hormone receptor protein
See all Growth hormone receptor proteins and peptides
Protein lengthProtein fragment
Amino Acid Sequence
Amino acids18 to 265
Our Abpromise guarantee covers the use of ab68380 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Biological activityBiological Activity: ab68380 is fully biologically active as evidenced by its ability of forming 2:1 complex with HGH.
Purity> 95 % SDS-PAGE.
ab68380 is purified by proprietary chromatographic techniques.
Additional notesFor long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Concentration information loading...
Preparation and Storage
Stability and Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Constituent: 0.00004% Sodium bicarbonate
This product is an active protein and may elicit a biological response in vivo, handle with caution.
ReconstitutionIt is recommended to reconstitute the lyophilized Growth Hormone Binding Protein in sterile 18MO-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
- GH receptor
- GH-binding protein
FunctionReceptor for pituitary gland growth hormone involved in regulating postnatal body growth. On ligand binding, couples to the JAK2/STAT5 pathway.
The soluble form (GHBP) acts as a reservoir of growth hormone in plasma and may be a modulator/inhibitor of GH signaling.
Isoform 2 up-regulates the production of GHBP and acts as a negative inhibitor of GH signaling.
Tissue specificityExpressed in various tissues with high expression in liver and skeletal muscle. Isoform 4 is predominantly expressed in kidney, bladder, adrenal gland and brain stem. Isoform 1 expression in placenta is predominant in chorion and decidua. Isoform 4 is highly expressed in placental villi. Isoform 2 is expressed in lung, stomach and muscle. Low levels in liver.
Involvement in diseaseDefects in GHR are a cause of Laron syndrome (LARS) [MIM:262500]. A severe form of growth hormone insensitivity characterized by growth impairment, short stature, dysfunctional growth hormone receptor, and failure to generate insulin-like growth factor I in response to growth hormone.
Defects in GHR may be a cause of idiopathic short stature autosomal (ISSA) [MIM:604271]. Short stature is defined by a subnormal rate of growth.
Sequence similaritiesBelongs to the type I cytokine receptor family. Type 1 subfamily.
Contains 1 fibronectin type-III domain.
DomainThe WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding.
The box 1 motif is required for JAK interaction and/or activation.
The extracellular domain is the ligand-binding domain representing the growth hormone-binding protein (GHBP).
The ubiquitination-dependent endocytosis motif (UbE) is required for recruitment of the ubiquitin conjugation system on to the receptor and for its internalization.
modificationsThe soluble form (GHBP) is produced by phorbol ester-promoted proteolytic cleavage at the cell surface (shedding) by ADAM17/TACE. Shedding is inhibited by growth hormone (GH) binding to the receptor probably due to a conformational change in GHR rendering the receptor inaccessible to ADAM17.
On GH binding, phosphorylated on tyrosine residues in the cytoplasmic domain by JAK2.
On ligand binding, ubiquitinated on lysine residues in the cytoplasmic domain. This ubiquitination is not sufficient for GHR internalization.
Cellular localizationSecreted; Cell membrane. On growth hormone binding, GHR is ubiquitinated, internalized, down-regulated and transported into a degradative or non-degradative pathway and Cell membrane. Remains fixed to the cell membrane and is not internalized.
- Information by UniProt
ab68380 has not yet been referenced specifically in any publications.