Anti-Gemin 3 antibody [12H12] (ab10305)
Key features and details
- Mouse monoclonal [12H12] to Gemin 3
- Suitable for: ELISA, WB, IP, Flow Cyt
- Reacts with: Human
- Isotype: IgG1
Overview
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Product name
Anti-Gemin 3 antibody [12H12]
See all Gemin 3 primary antibodies -
Description
Mouse monoclonal [12H12] to Gemin 3 -
Host species
Mouse -
Tested applications
Suitable for: ELISA, WB, IP, Flow Cytmore details -
Species reactivity
Reacts with: Human -
Immunogen
Recombinant 6His-tag C-terminal domain of Gemin 3 (amino acids 368-548).
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General notes
The survival of motor neurons (SMN) gene is the disease gene of spinal muscular atrophy (SMA), a common motor neuron degenerative disease. The SMN protein is part of a complex containing several proteins, of which one, SIP1 (SMN interacting protein 1), has been characterized so far. The SMN complex is found in both the cytoplasm and in the nucleus, where it is concentrated in bodies called gems. In the cytoplasm, SMN and SIP1 interact with the Sm core proteins of spliceosomal small nuclear ribonucleoproteins (snRNPs), and they play a critical role in snRNP assembly. In the nucleus, SMN is required for pre-mRNA splicing, likely by serving in the regeneration of snRNPs. A DEAD box putative RNA helicase, named Gemin 3 which is another component of the SMN complex, has been identified. Gemin 3 interacts directly with SMN, as well as with SmB, SmD2 and SmD3. Immunolocalization studies using mAbs to Gemin 3 show that it colocalizes with SMN in gems. Gemin 3 binds SMN via its unique COOH-terminal domain, and SMN mutations found in some SMA patients strongly reduce this interaction. The presence of a DEAD box motif in Gemin 3 suggests that it may provide the catalytic activity that plays a critical role in the function of the SMN complex on RNPs.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles. -
Storage buffer
Preservative: 0.1% Sodium azide
Constituent: PBS -
Concentration information loading... -
Purity
Protein A purified -
Purification notes
Protein A purified from tissue culture supernatant. -
Primary antibody notes
The survival of motor neurons (SMN) gene is the disease gene of spinal muscular atrophy (SMA), a common motor neuron degenerative disease. The SMN protein is part of a complex containing several proteins, of which one, SIP1 (SMN interacting protein 1), has been characterized so far. The SMN complex is found in both the cytoplasm and in the nucleus, where it is concentrated in bodies called gems. In the cytoplasm, SMN and SIP1 interact with the Sm core proteins of spliceosomal small nuclear ribonucleoproteins (snRNPs), and they play a critical role in snRNP assembly. In the nucleus, SMN is required for pre-mRNA splicing, likely by serving in the regeneration of snRNPs. A DEAD box putative RNA helicase, named Gemin 3 which is another component of the SMN complex, has been identified. Gemin 3 interacts directly with SMN, as well as with SmB, SmD2 and SmD3. Immunolocalization studies using mAbs to Gemin 3 show that it colocalizes with SMN in gems. Gemin 3 binds SMN via its unique COOH-terminal domain, and SMN mutations found in some SMA patients strongly reduce this interaction. The presence of a DEAD box motif in Gemin 3 suggests that it may provide the catalytic activity that plays a critical role in the function of the SMN complex on RNPs. -
Clonality
Monoclonal -
Clone number
12H12 -
Myeloma
Sp2/0 -
Isotype
IgG1 -
Research areas
Associated products
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Compatible Secondaries
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Isotype control
Applications
Our Abpromise guarantee covers the use of ab10305 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| ELISA | Use at an assay dependent concentration. | |
| WB | Use at an assay dependent concentration. Detects a band of approximately 105 kDa (predicted molecular weight: 99 kDa). | |
| IP | Use at an assay dependent concentration. | |
| Flow Cyt | Use 1µg for 106 cells. ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.
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Target
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Function
The SMN complex plays an essential role in spliceosomal snRNP assembly in the cytoplasm and is required for pre-mRNA splicing in the nucleus. It may also play a role in the metabolism of snoRNPs. -
Tissue specificity
Ubiquitous. -
Sequence similarities
Belongs to the DEAD box helicase family. DDX20 subfamily.
Contains 1 helicase ATP-binding domain.
Contains 1 helicase C-terminal domain. -
Cellular localization
Cytoplasm. Nucleus > gem. Localized in subnuclear structures next to coiled bodies, called Gemini of Cajal bodies. - Information by UniProt
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Database links
- Entrez Gene: 11218 Human
- Omim: 606168 Human
- SwissProt: Q9UHI6 Human
- Unigene: 591405 Human
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Alternative names
- Component of gems 3 antibody
- DDX 20 antibody
- ddx20 antibody
see all
Images
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![Flow Cytometry - Anti-Gemin 3 antibody [12H12] (ab10305)](https://www.abcam.com/ps/products/10/ab10305/Images/ab10305-17901-anti-gemin-3-antibody-12h12-flow-cytometry.jpg)
Flow Cytometry - Anti-Gemin 3 antibody [12H12] (ab10305)Overlay histogram showing HeLa cells stained with ab10305 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab10305, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.
References
ab10305 has been referenced in 6 publications.
- Mahmoudi S et al. WRAP53 is essential for Cajal body formation and for targeting the survival of motor neuron complex to Cajal bodies. PLoS Biol 8:e1000521 (2010). WB ; Human . PubMed: 21072240
- Bradrick SS & Gromeier M Identification of gemin5 as a novel 7-methylguanosine cap-binding protein. PLoS One 4:e7030 (2009). WB ; Human . PubMed: 19750007
- Castelló A et al. RNA nuclear export is blocked by poliovirus 2A protease and is concomitant with nucleoporin cleavage. J Cell Sci 122:3799-809 (2009). WB ; Human . PubMed: 19789179
- Walker MP et al. SMN complex localizes to the sarcomeric Z-disc and is a proteolytic target of calpain. Hum Mol Genet 17:3399-410 (2008). ICC/IF ; Hamster . PubMed: 18689355
- Morency E et al. A novel cell response triggered by interphase centromere structural instability. J Cell Biol 177:757-68 (2007). ICC/IF ; Human . PubMed: 17548509
- Zhang H et al. Multiprotein complexes of the survival of motor neuron protein SMN with Gemins traffic to neuronal processes and growth cones of motor neurons. J Neurosci 26:8622-32 (2006). PubMed: 16914688
