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Key Documents

SAB3500046

Sigma-Aldrich

Anti-RSPO1 antibody produced in rabbit

affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-CRISTIN3, Anti-R-spondin1, Anti-RSPO

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

species reactivity

rat, human, mouse

technique(s)

immunofluorescence: suitable
immunohistochemistry: suitable
indirect ELISA: suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... RSPO1(284654)

General description

R-spondin 1 (RSPO1) is a member of a family of secreted growth factors that can operate through the canonical Wnt signaling pathway by stabilizing the intracellular β-catenin, thereby regulating functions mediated by β-catenin such as cell fate decisions and embryonic patterning. It possesses two furin-like cysteine-rich domains at the amino-terminus, a thrombospondin domain and a carboxy-terminal tail. At least two isoforms of RSPO1 are known to exist. RSPO1 antibody will not cross-react with RSPO family members. The gene encoding RSPO1 is localized on human chromosome 1p34.3.

Immunogen

RSPO1 antibody was raised against a 16 amino acid peptide from near the amino terminus of human RSPO1.

Application

Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Immunohistochemistry-frozen tissue (1 paper)

Biochem/physiol Actions

RSPO1 was recently identified through linkage analysis to be involved in sex determination and mammalian ovarian development. RSPO1 is thought to regulate cellular responsiveness to Wnt ligands by modulating the cell-surface expression of the Wnt co-receptor LRP6 by interfering with the DKK/Kremen-mediated internalization of LRP6 through an interaction with Kremen, resulting in increased LRP6 cell-surface levels.

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Linkage

The action of this antibody can be blocked using blocking peptide SBP3500046.

Physical form

Supplied at approx. 1 mg/mL in phosphate buffered saline containing 0.02% sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cloning and expression of R-Spondin1 in different vertebrates suggests a conserved role in ovarian development
Craig A
BMC Developmental Biology (2008)
WNT4 and RSPO1 Are Not Involved in a Case of Male-to-Female Sex Reversal with Partial D
Wieacker P. ? Volleth M.
Sexual Development : Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation (2007)
R-Spondin Family Members Regulate the Wnt Pathway by a Common Mechanism
Kyung-Ah Kim
Molecular Biology of the Cell (2008)
R-Spondin1 regulates Wnt signaling by inhibiting internalization of LRP6
Minke E
Proceedings of the National Academy of Sciences of the USA (2007)
Tyler E Miller et al.
PloS one, 9(12), e114433-e114433 (2014-12-11)
Wnt signaling regulates self-renewal and fate commitment of stem and progenitor cells in development and homeostasis. Leucine-rich repeat-containing G-protein coupled receptor 5 (Lgr5) is a co-receptor for Wnt signaling that marks highly proliferative stem and progenitor cells in many epithelial

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