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Recombinant mouse RSPO1 protein (Active) is a Mouse Full Length protein, in the 21 to 265 aa range, expressed in CHO, with >95% purity and suitable for FuncS, HPLC, SDS-PAGE.

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Key facts

Purity
>95% SDS-PAGE
Expression system
CHO cells
Tags
Tag free
Applications
FuncS, HPLC, SDS-PAGE
Biologically active
Yes

Amino acid sequence

S R G I K G K R Q R R I S A E G S Q A C A K G C E L C S E V N G C L K C S P K L F I L L E R N D I R Q V G V C L P S C P P G Y F D A R N P D M N K C I K C K I E H C E A C F S H N F C T K C Q E A L Y L H K G R C Y P A C P E G S T A A N S T M E C G S P A Q C E M S E W S P W G P C S K K R K L C G F R K G S E E R T R R V L H A P G G D H T T C S D T K E T R K C T V R R T P C P E G Q K R R K G G Q G R R E N A N R H P A R K N S K E P R S N S R R H K G Q Q Q P Q P G T T G P L T S V G P T W A Q

Reactivity data

Application
FuncS
Reactivity
Reacts
Dilution info
-
Notes

-

Application
HPLC
Reactivity
Reacts
Dilution info
-
Notes

-

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

Due to glycosylation, ab245804 migrates at an apparent molecular weight of approximately 40.0 kDa by SDS-PAGE analysis under reducing conditions.

Associated Products

Select an associated product type

3 products for Alternative Product

Target data

Function

Activator of the canonical Wnt signaling pathway by acting as a ligand for LGR4-6 receptors. Upon binding to LGR4-6 (LGR4, LGR5 or LGR6), LGR4-6 associate with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes (PubMed:21693646). Also regulates the canonical Wnt/beta-catenin-dependent pathway and non-canonical Wnt signaling by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. Acts as a ligand for frizzled FZD8 and LRP6. May negatively regulate the TGF-beta pathway. Has a essential roles in ovary determination (By similarity). Regulates Wnt signaling by antagonizing DKK1/KREM1-mediated internalization of LRP6 through an interaction with KREM1 (By similarity).

Alternative names

Recommended products

Recombinant mouse RSPO1 protein (Active) is a Mouse Full Length protein, in the 21 to 265 aa range, expressed in CHO, with >95% purity and suitable for FuncS, HPLC, SDS-PAGE.

Key facts

Purity
>95% SDS-PAGE
Expression system
CHO cells
Applications
FuncS, HPLC, SDS-PAGE
Biological activity
ab245804 enhances BMP-2-mediated differentiation of MC3T3-E1 cells.
Accession
Q9Z132-1
Animal free
No
Species
Mouse
Reconstitution
Reconstitute in water to 0.1-1.0 mg/ml.
Concentration
Loading...
Storage buffer

Constituents: 0.87% Sodium chloride, 0.16% Sodium phosphate

Sequence info

Amino acid sequence

S R G I K G K R Q R R I S A E G S Q A C A K G C E L C S E V N G C L K C S P K L F I L L E R N D I R Q V G V C L P S C P P G Y F D A R N P D M N K C I K C K I E H C E A C F S H N F C T K C Q E A L Y L H K G R C Y P A C P E G S T A A N S T M E C G S P A Q C E M S E W S P W G P C S K K R K L C G F R K G S E E R T R R V L H A P G G D H T T C S D T K E T R K C T V R R T P C P E G Q K R R K G G Q G R R E N A N R H P A R K N S K E P R S N S R R H K G Q Q Q P Q P G T T G P L T S V G P T W A Q
Accession
Q9Z132
Protein length
Full Length
Predicted molecular weight
27.2 kDa
Amino acids
21 to 265
Nature
Recombinant

Specifications

Form
Lyophilized
Additional notes

>95 % by HPLC.

General info

Function

Activator of the canonical Wnt signaling pathway by acting as a ligand for LGR4-6 receptors. Upon binding to LGR4-6 (LGR4, LGR5 or LGR6), LGR4-6 associate with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes (PubMed:21693646). Also regulates the canonical Wnt/beta-catenin-dependent pathway and non-canonical Wnt signaling by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. Acts as a ligand for frizzled FZD8 and LRP6. May negatively regulate the TGF-beta pathway. Has a essential roles in ovary determination (By similarity). Regulates Wnt signaling by antagonizing DKK1/KREM1-mediated internalization of LRP6 through an interaction with KREM1 (By similarity).

Sequence similarities

Belongs to the R-spondin family.

Post-translational modifications

C-, and N-glycosylated. N-glycosylation at Asn-137, negatively influences its secretion and enhancing effect on Wnt/beta-catenin signaling. C-mannosylation at Trp-156 by DPY19L3 is required for its secretion an regulates the enhancing activity of Wnt signaling.

Subcellular localisation
Nucleus

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Notes

Due to glycosylation, ab245804 migrates at an apparent molecular weight of approximately 40.0 kDa by SDS-PAGE analysis under reducing conditions.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

RSPO1 also known as R-spondin 1 is a protein that plays an important role in the activation of the Wnt/β-catenin signaling pathway. It weighs approximately 29 kDa. RSPO1 is a secreted protein and is expressed in a variety of tissues including the ovary pancreas and regions of the brain. By binding to the leucine-rich repeat-containing G-protein-coupled receptors (LGRs) especially LGR4 LGR5 and LGR6 RSPO1 enhances Wnt signaling activity leading to increased stability and accumulation of β-catenin in the cell.

Biological function summary

RSPO1 acts as a major stimulator of cell proliferation and differentiation. It does not function alone but rather works in association with the Wnt receptors for signal enhancement. RSPO1 positively influences the regenerative processes in tissues and organs contributing to cell fate determination during development. As part of this interaction RSPO1 can reverse the degradation of Wnt receptors therefore amplifying the signaling required for proper developmental processes and tissue maintenance.

Pathways

RSPO1 integrates deeply into the Wnt/β-catenin signaling pathway where its role is important for amplifying the signals important for cellular activities such as proliferation and migration. RSPO1 interacts with pathway members such as Frizzled receptors and lipoprotein receptor-related proteins (Lrp5/6) to potentiate Wnt signaling. The function of RSPO1 in the Wnt pathway aligns with its interplay in epithelial cell stimulation and development making it an essential component in pathways driving cellular growth and differentiation.

Associated diseases and disorders

RSPO1 has significant connections with congenital and proliferative conditions. Disruptions in RSPO1 expression are linked to sex reversal syndrome where the genetic sex does not match the phenotypic sex due to abnormal gonadal development. Additionally RSPO1 is implicated in colorectal cancer where upregulated Wnt signaling facilitated by RSPO1 promotes unchecked cellular proliferation. The interplay between RSPO1 and other pathway components like β-catenin and Frizzled receptors exacerbates these molecular dysfunctions highlighting its relevance in disease mechanisms.

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