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R1030

Sigma-Aldrich

Monoclonal Anti-RAP1 A/B antibody produced in mouse

~1 mg/mL, clone R116, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-KREV-1, Anti-KREV1, Anti-RAP1, Anti-SMGP21

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About This Item

MDL number:
UNSPSC Code:
12352203

biological source

mouse

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

R116, monoclonal

form

buffered aqueous solution

mol wt

antigen ~21 kDa (additional band at 70 kDa may be seen in some preparations)

species reactivity

hamster, human

concentration

~1 mg/mL

technique(s)

immunocytochemistry: suitable
indirect ELISA: suitable
western blot: 0.5-1 μg/mL using total cell extract of CHO cells

isotype

IgM

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

General description

Monoclonal Anti-RAP1 A/B (mouse IgM isotype) is derived from the hybridoma R116 produced by the fusion of mouse myeloma cells (NS1 cells) and splenocytes from BALB/c mice. Ras-related protein 1A (RAP1A/Krev-1) belongs to the Ras superfamily of small GTPases. RAP1 gene is mapped to human chromosome 1p13.3

Specificity

Monoclonal Anti-RAP1 A/B recognizes human and hamster RAP1 A/B (~21 kDa).

Immunogen

synthetic peptide corresponding to amino acids 26-40 of human RAP1. The antibody recognizes human and hamster RAP1 A/B.

Application

Monoclonal Anti-RAP1 A/B antibody produced in mouse may be used in:
  • enzyme-linked immunosorbent assay (ELISA)
  • immunoblotting
  • immunocytochemistry

Biochem/physiol Actions

Ras-related protein 1A (RAP1A), a novel oncoprotein in human malignancies acts as an important modulator in T cell response. RAP1A also participates in bacterial infection, cell dynamics and osteoblast differentiation. It may serve as a Ras antagonist and is a tumor suppressor gene. RAP1A is activated by growth factors, neurotransmitters and cytokines. Several second messengers, such as cyclic adenosine monophosphate (cAMP), diacylglycerol and calcium may serve as the mediators of this activation. In many cells, active RAP1 changes its cellular location from endosomal membranes to the plasma membrane. RAP1 binds competitively to RAS-GTPase activating protein (RASA) thus interfering with its RAS effectors functions. Ectopically expressed RAP1 is capable of interacting with the RAS effector (RAF1), which may lead to the inhibition of extra-cellular-signal-regulated kinase (ERK) activation. RAP1 can also mediate cyclic adenosine monophosphate (cAMP)-induced ERK activation.

Target description

Monoclonal Anti-RAP1 A/B recognizes human and hamster RAP1 A/B (~21 kDa). Ras-related proteins are p21 superfamily of proteins involved in cell growth and differentiation. The p21 protein RAP1, expressed in cells as one of two isoforms (RAP1A and RAP1B),

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, and 15 mM sodium azide.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in “frost-free” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours.

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

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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Association of Krev-1/rap1a with Krit1, a novel ankyrin repeat-containing protein encoded by a gene mapping to 7q21-22
Serebriiskii I, et al.
Oncogene, 15(9), 1043-1049 (1997)
Multiple roles of Rap1 in hematopoietic cells: complementary versus antagonistic functions
Stork PJS and Dillon TJ
Blood, 106, 2952-2961 (2005)
Jiaying Wang et al.
Clinical and translational medicine, 11(5), e425-e425 (2021-05-29)
Exosomal microRNA (miRNA) as a mediator of intercellular communication plays an essential part in tumor-relevant angiogenesis. Therapy against angiogenesis has been demonstrated to have a remarkable antitumor efficacy in various malignancies, but not as expected in ovarian cancer. Exosomes were
Insulin Promotes the Proliferation of Human Umbilical Cord Matrix-Derived Mesenchymal Stem Cells by Activating the Akt-Cyclin D1 Axis.
Peng Li et al.
Stem cells international, 2017, 7371615-7371615 (2017-05-10)
New variations in the promoter regions of human DOCK4 and RAP1A genes, and coding regions of RAP1A in sporadic breast tumors
Jalali A, et al.
Avicenna Journal of Medical Biotechnology, 1(2), 117-117 (2009)

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