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M1944

Sigma-Aldrich

Anti-MBDin/XAB1 (KP-19) antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

IgG fraction of antiserum

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen 41 kDa

species reactivity

human

technique(s)

microarray: suitable
western blot: 1:250-1:500 using nuclear extracts of HeLa cells

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... GPN1(11321)

General description

MBD2-interacting protein (MBDin) or XPA-binding protein 1 (XAB1) GPN-loop GTPase (GPN1) comprises a conserved Gly-Pro-Asn (GPN) motif. It has an N-terminal guanosine triphosphatase (GTPase) domain or GTP binding domain, a C-terminal acidic domain and six nuclear export sequences (NES). GPN1 gene is mapped to human chromosome 2p23.3.

Specificity

Anti MBDin/XAB1 (KP-19) recognizes human MBDin/XAB1.

Immunogen

synthetic peptide corresponding to amino acids 32-50 of human XAB1, conjugated to KLH via a C-terminal added cysteine residue.

Application

Anti-MBDin/XAB1 (KP-19) antibody produced in rabbit may be used in immunoblotting.

Biochem/physiol Actions

GPN-loop GTPase 1 (GPN1) interacts with RNA polymerase II assembly intermediates. The nuclear export sequence is crucial for the nuclear import of DNA-directed RNA polymerase II subunit (POLR2A and POLR2B). GPN1 mediates the nuclear localization of Xeroderma pigmentosum complementation group A (XPA). The transcriptional repression by methyl-CpG-binding domain protein 2 (MBD2) at methylated promoters are relieved by MBD2-interacting protein (MBdin).

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 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 is not recommended. Storage in frost-free freezers is also not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

Disclaimer

Unless otherwise stated in our catalog, 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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Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Jürgen Niesser et al.
Molecular and cellular biology, 36(5), 820-831 (2015-12-30)
Biogenesis of the 12-subunit RNA polymerase II (Pol II) transcription complex requires so-called GPN-loop GTPases, but the function of these enzymes is unknown. Here we report the first crystal structure of a eukaryotic GPN-loop GTPase, the Saccharomyces cerevisiae enzyme Npa3
Terrick Andey et al.
PloS one, 11(1), e0146804-e0146804 (2016-01-13)
To formulate hydroxypropyl methylcellulose-stabilized self-emulsifying solid dispersible carriers of noscapine to enhance oral bioavailability. Formulation of noscapine (Nos) self-emulsifying solid dispersible microparticles (SESDs) was afforded by emulsification using an optimized formula of Labrafil M1944, Tween-80, and Labrasol followed by spray-drying
Humberto Reyes-Pardo et al.
Biochimica et biophysica acta, 1823(10), 1756-1766 (2012-07-17)
XAB1/Gpn1 is a GTPase that associates with RNA polymerase II (RNAPII) in a GTP-dependent manner. Although XAB1/Gpn1 is essential for nuclear accumulation of RNAPII, the underlying mechanism is not known. A XAB1/Gpn1-EYFP fluorescent protein, like endogenous XAB1/Gpn1, localized to the
Apurva R Patel et al.
Journal of controlled release : official journal of the Controlled Release Society, 213, 18-26 (2015-06-17)
3, 3-Diindolylmethane-14 (DIM-14), a novel lipophilic derivative of DIM, has demonstrated anticancer activity in different types of cancers. However, poor solubility and low oral bioavailability of DIM-14 limit its translational benefits in vivo. This study was carried out to improve
S-C Bae et al.
Zeitschrift fur Rheumatologie, 79(9), 929-936 (2020-01-23)
To investigate whether periodontitis is causally associated with risk of rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). We performed two-sample Mendelian randomization (MR) analysis using the inverse variance-weighted (IVW), weighted median, and MR-Egger regression methods on publicly available summary

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