Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Endotoxin

Less than 1.0 EU/ug as determined by LAL method.

Activity

Measured by its binding ability in a functional ELISA. Immobilized human GUCY2C at 5 μg/mL can bind Anti-GUCY2C recombinant antibody (CSB-RA010053A2HU), the EC₅₀ is 3.049-4.660 ng/mL.

Target Names

GUCY2C

Uniprot No.

P25092

Research Area

Microbiology

Alternative Names

(STA receptor)(hSTAR)(Guanylyl cyclase C)(GC-C)(Intestinal guanylate cyclase)

Molecular Characterization

Species

Homo sapiens (Human)

Source

Mammalian cell

Expression Region

24-430aa

Target Protein Sequence

SQVSQNCHNGSYEISVLMMGNSAFAEPLKNLEDAVNEGLEIVRGRLQNAGLNVTVNATFMYSDGLIHNSGDCRSSTCEGLDLLRKISNAQRMGCVLIGPSCTYSTFQMYLDTELSYPMISAGSFGLSCDYKETLTRLMSPARKLMYFLVNFWKTNDLPFKTYSWSTSYVYKNGTETEDCFWYLNALEASVSYFSHELGFKVVLRQDKEFQDILMDHNRKSNVIIMCGGPEFLYKLKGDRAVAEDIVIILVDLFNDQYFEDNVTAPDYMKNVLVLTLSPGNSLLNSSFSRNLSPTKRDFALAYLNGILLFGHMLKIFLENGENITTPKFAHAFRNLTFEGYDGPVTLDDWGDVDSTMVLLYTSVDTKKYKVLLTYDTHVNKTYPVDMSPTFTWKNSKLPNDITGRGPQ

Mol. Weight

74.9 kDa

Protein Length

Partial

Tag Info

C-terminal hFc1-tagged

Form

Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer

Lyophilized from a 0.2 μm filtered PBS, 6% Trehalose, pH 7.4

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

GUCY2C's extracellular domain has emerged as a high-value target for therapeutic antibody development in gastrointestinal oncology, and this construct spans residues 24–430 to capture the complete ligand-binding region critical for receptor-antibody interaction studies. Expressed in mammalian cells to preserve native glycosylation and conformational integrity, the C-terminal hFc1 tag facilitates oriented immobilization in binding assays—validated by functional ELISA demonstrating an EC50 of 3.049–4.660 ng/mL against an anti-GUCY2C recombinant antibody at 5 μg/mL coating concentration. This quantitative binding performance supports use in competitive inhibition assays, blocking antibody screening, therapeutic antibody epitope mapping, and affinity characterization by SPR or BLI. The protein satisfies the purity and endotoxin criteria typical for sensitive functional assays, with greater than 90% purity by SDS-PAGE and endotoxin levels below 1.0 EU/μg, providing a suitable basis for drug discovery screening of biologics targeting GUCY2C.

Target Background

Function

Receptor for the E.coli heat-stable enterotoxin (E.coli enterotoxin markedly stimulates the accumulation of cGMP in mammalian cells expressing GC-C). Also activated by the endogenous peptides guanylin and uroguanylin.

Gene References into Functions

High Expressions of guanylyl cyclase C is associated with rectal cancer. PMID: 28418917
The findings support that the activating mutation in GUCY2C creates an intestinal environment with a major influence on the microbiota, which could contribute to the increased susceptibility to inflammatory bowel disease in patients with Familial GUCY2C diarrhea syndrome. PMID: 28902124
the expression of GCC is maintained throughout the process of tumor progression and formation of metastatic disease. PMID: 29261789
To investigate gut motility and hormones before and after a meal in Familial GUCY2C diarrhea syndrome patients and compare with healthy controls PMID: 28957388
Mutations in GUCY2C indicate a role for this receptor in the pathogenesis of sporadic Congenital secretory diarrhea. PMID: 25994218
these data support Ad5-GUCY2C-PADRE as a safe and effective vaccination strategy in preclinical models and position Ad5-GUCY2C-PADRE for Phase I clinical testing in colorectal cancer patients. PMID: 27903079
Familial GUCY2C diarrhoea syndrome is caused by an activating mutation in the GUCY2C gene, which causes impaired contractility and fluid stagnation in the small bowel PMID: 27338166
Findings show how caloric suppression of the guanylin-GUCY2C signaling axis links obesity to negation of a universal tumor suppressor pathway in colorectal cancer. PMID: 26773096
Data show that individuals affected with meconium ileus (MI) had either homozygous or compound heterozygous variants in enterotoxin receptor GUCY2C. PMID: 25370039
High guanylyl cyclase C expression is associated with colon cancer recurrence. PMID: 24919572
Transmission disequilibrium tests (TDT), case-control studies and quantitative analyses indicated association between GUC2C with Attention-deficit/hyperactivitydisorder and its core symptoms. PMID: 25064385
Intestinal cell proliferation and senescence are regulated by receptor guanylyl cyclase C and p21. PMID: 24217248
GUCY2C signaling constitutes a direct link between the initiation of colorectal cancer and the induction of its associated desmoplastic stromal niche. PMID: 24085786
Data show that lower survival (OS) and disease-free survival (DFS) rates were significantly associated with guanylate cyclase C (GCC) and CK20 mRNA levels. PMID: 23150200
Interaction with VIP36 is dependent on glycosylation at the same sites that allow GC-C to fold and bind ligand. PMID: 23269669
GUCY2C opposes systemic genotoxic tumorigenesis by regulating AKT-dependent intestinal barrier integrity PMID: 22384056
Mutations in GUCY2C were associated with the Meconium ileus phenotype. downregulation of GUCY2C leads to a cystic fibrosis-like intestinal phenotype. PMID: 22521417
We identified a heterozygous missense mutation (c.2519G-->T) in GUCY2C in all family members with familial diarrhea syndrome. PMID: 22436048
High guanylyl cyclase C is associated with colon cancer. PMID: 21533822
Data suggest that monitoring the peripheral blood GCC expressions may allow employing different treatment options to metastatic CRC patients. PMID: 21901559
Lymph nodes (range: 2-159) from 291 prospectively enrolled node-negative colorectal cancer patients were analyzed by histopathology and GUCY2C quantitative RT-PCR. PMID: 21307149
Longer survival was associated with hypomethylation at specific CpG sites (e.g. GREB1, TGIF and TOB1) and hypermethylation in other genes (e.g. TMCO5, PTPRN and GUCY2C). PMID: 21577013
A novel PDZ protein regulates the activity of guanylyl cyclase C, the heat-stable enterotoxin receptor. PMID: 11950846
guanylyl cyclase c is ectopically expressed in primary and metastatis adenocarcinoma of the esophagus and stomach PMID: 12163327
SH3 domain -mediated protein-protein interaction with the catalytic domain of guanylyl cyclase C inhibited the cyclase activity and might be pivotal for the desensitization phenomenon of the guanylyl cyclase C receptor PMID: 12649275
gelatinolytic activity of GCC in colorectal tumor tissues may facilitate the hepatic metastatic process in the steps after intravasation but not during or before intravasation PMID: 14581363
a novel role for glycosidic modification of GC-C during its biosynthesis, in imparting subtle conformational changes in the receptor that allow for ligand-mediated activation and perhaps regulation of basal activity PMID: 14748740
Lack of guanylyl cyclase c expression assoeciated with significant reduction in adenomas in Apc(Min/+);Gucy2c(-/-) mice PMID: 15825168
Transformation associated with reflux at the gastroesophageal junction reflects activation by bile acid and acid of a transcriptional program involving NF-kappaB and Cdx2, which mediate intestinal metaplasia and ectopic expression of GC-C. PMID: 16618413
This validated assay is being applied to approximately 10,000 lymph nodes in a prospective trial to define the sensitivity of Guanylyl cyclase C(GCC) qRT-PCR for staging patients with colorectal cancer. PMID: 16899600
docking of the c-src SH2 domain to phosphorylated GC-C results in colocalization and further activation of c-src. PMID: 19620276
the role of the linker region in receptor guanylyl cyclases PMID: 19648115
GCC is a specific marker for differentiating primary and secondary metatstatic ovarian mucinous neoplasms. PMID: 19694825
Results suggest that GUCY2C quantitative reverse transcriptase (qRT)-PCR can be used to detect occult lymph node metastases in pN0 colorectal cancer patients. PMID: 19895223
Expression of the receptor guanylyl cyclase C and its ligands in reproductive tissues of the rat: a potential role for a novel signaling pathway in the epididymis. PMID: 12444076
The protein kinase-like domain in receptor guanylyl cyclase C provides a critical structural link between the extracellular domain and the catalytic domain in regulation of this family of receptors. PMID: 11478887

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Involvement in disease

Diarrhea 6 (DIAR6); Meconium ileus (MECIL)

Subcellular Location

Cell membrane; Single-pass type I membrane protein. Endoplasmic reticulum membrane; Single-pass type I membrane protein. Note=The 145 kDa plasma membrane form of GC-C contains sialic acid and galactose residues, while a differencially glycosylated 130 Kda form is a high mannose form that is resident in the endoplasmic reticulum and may serve as the precursor for the cell surface form.

Protein Families

Adenylyl cyclase class-4/guanylyl cyclase family

Database Links

HGNC: 4688

OMIM: 601330

KEGG: hsa:2984

STRING: 9606.ENSP00000261170

UniGene: Hs.524278

Code	CSB-MP010053HUd9
Abbreviation	Recombinant Human GUCY2C protein, partial (Active)
MSDS	MSDS Datasheet
Size	$138
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Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Activity Measured by its binding ability in a functional ELISA. Immobilized human GUCY2C at 5 μg/ml can bind Anti-GUCY2C recombinant antibody (CSB-RA010053A2HU), the EC₅₀ is 3.049-4.660 ng/mL. Biological Activity Assay
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Recombinant Human Heat-stable enterotoxin receptor (GUCY2C), partial (Active)

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