SUN1,2 (nuclear envelope protein) (Arabidopsis thaliana)

AS15 2856 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Arabidopsis thaliana

SUN1,2 (nuclear envelope protein) (Arabidopsis thaliana) in the group Antibodies Plant/Algal  / Compartment Markers / Nuclear marker at Agrisera AB (Antibodies for research) (AS15 2856)
SUN1,2 (nuclear envelope protein) (Arabidopsis thaliana)
SUN1,2 (nuclear envelope protein) (Arabidopsis thaliana)


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Product name, number (Agrisera, Sweden)

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Product Information


KLH-conjugated synthetic peptide derived from SUN1,2 sequences of Arabidopsis thaliana SUN1 UniProt: Q9FF75, TAIR: AT5G04990, SUN2, UniProt: Q9SG79, TAIR: AT3G10730

Host Rabbit
Clonality Polyclonal
Purity Immunogen affinity purified serum in PBS pH 7.4.
Format Lyophilized
Quantity 50 µg
Reconstitution For reconstitution add 50 µl of sterile water
Storage Store lyophilized/reconstituted at -20°C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
Tested applications Western blot (WB), Immunocytochemistry (ICC)
Recommended dilution 1 : 1000 (WB), 1 : 200 (ICC)
Expected | apparent MW 51,5 kDa (SUN1); 49,9 kDa (SUN2)


Confirmed reactivity Arabidopsis thaliana
Predicted reactivity Arabidopsis thaliana

Application examples

Application examples Application example

western blot using anti-SUN1,2 antibodies

Chloroplast fraction was obtained using Chloroplast Isolation Kit (CPISO-1KT, Sigma-Aldrich). 1. Supernatant proteins after DNA digestion, 2. Unquantified, 10 µl of pellet after DNA digestion. Signal of SMT1 (Sterol methyltransferase 1, marker antibody of integral ER membrane) was not detected. Nuclei fraction was isolated from 1 g fresh weight of 3-4 old day cell suspension culture of Arabidopsis thaliana Ler according to protocol published by Xu and Copeland (2012). Nuclei fraction was stored in NSB buffer (with added ROCHE and PMSF inhibitors) in 80 °C. Residue of nuclei was centrifuged and pellet was re-suspended in 100 µl of modified RIPA buffer with added protease inhibitors and incubated 1h on ice. Then 20 µl of DNase I was added into each sample and all samples were incubated on ice for 45 min. After that 45 min another 20 µl of DNase I was added and incubated under the same conditions. Samples were twice centrifuged 1) 15 000 × g for 15 min and 2) 30 000 × g for 30 min. Pellets from the first step of centrifugation was stored. Proteins in second supernatant were precipitated with ice-cold acetone over night and twice washed. Protein pellet was dissolved in buffer contained 6 M Urea, 2 M Thiourea and 25 mM Tris, pH = 7,5. Proteins were quantified by using Bradford method. Totally 3 µg of protein was loaded on gel. Pellet after DNase treatment was dissolved in 20 µl of LSB buffer. Samples were boiled on 95°C for 10 min before loading on 4 / 12% polyacrylamide gel. Electrophoretic conditions: 90 V during whole separation (2 h); Transfer conditions: 90 mA, 30 V over night, nitrocellulose membrane; Blocking: 1 h, 5% low fat milk; Primary antibody incubation: 1 h at a dilution of 1: 1000; Washes: 3 × 5 min.; Secondary antibody: 1 h at a dilution of 1: 5000; washes: 3 × 10 min. ELC substrate was loaded on membrane and signals were detected with ChemiDoc system (Bio-Rad).

Courtesy of Dr. Martin Kubeš, Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Chemical Biology and Genetics, Olomouc, Czech Republic and Vladimír Skalický, Laboratory of Growth Regulators, Faculty of Science of Palacký University and Institute of Experimental Botany ASCR, Olomouc, Czech Republic

Immunofluorescence of SUN1,2, nuclear envelope protein in Arabidopsis, using anti-SUN1,2 antibodies

Immunofluorescent localization of SUN1,2 on suspension culture of Arabidopsis thaliana, using anti-SUN1,2 antibodies (AS15 2856) and anti-rabbit IgG DyLight®488 conjugated secondary antibodies (AS10 1165). DAPI staining of nuclei is pseudocolored red. 

Material: Suspension cultures of Arabidopsis thaliana, ecotype Landsberg erecta cv.MM1
Fixation: Packed cell volume to fixer ratio: 250 µl : 5ml
Fixer composition and buffer: 4% (w/v) paraformaldehyde (freshly prepared as 8% stock and 0.2 µm filtered) in Phosphate Buffered Saline (PBS), pH 7.4 (2x stock, 0.2 µm filtered)
Container and method: in 6 cm Petri dish, gentle shaking at room temperature (RT)
Duration: 30 minutes. Cells were not shaken during the first 5 mins of fixation to allowed to partially recover from osmotic shock induced by formaldehyde.
Hydrophilization: no
Cell wall digestion: Yes
Packed cell volume to enzyme ratio: 100 µl : 2ml Enzyme composition: 1% (A) 1.2% (R) Cellulase (chromatically purified, powder, Worthington) 1% Pectinase (protease free, liquid, Sigma) Buffer: 0.5% (w/v) MES buffer, pH 5.6
Container and method: in 2 ml microfuge tube by rolling at room temperature (RT)
Duration: 30 minutes
Membrane permeabilization: Triton-X100 (0.5%), 10 min/RT
Antigen retrieval: no
Blocking buffer: Fish gelatin (5% v/v)
Washing buffer: PBS
Primary antibody dilution and incubation time: 1:400, ON/4ºC
Secondary antibody dilution and incubation time and supplier: anti-rabbit IgG DyLight®488 conjugated secondary antibodies (AS10 1165), 1:600, 1hn/RT
Co-staining of the nucleus (DAPI): Yes
Nucleus staining: 100 ng/ml DAPI

Courtesy of Dr. Ferhan Ayaydin, Hungarian Centre of Excellence for Molecular Medicine (HCEMM), Szeged, Hungary. 

Additional information

For other species use product AS15 2857
This antibody is not suitable for immunolocalization.

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collection of antibodies to DNA/RNA/cell cycle

Plant and algal protein extraction buffer


Background SUN1,2 (nuclear envelope protein) is a member of the Sad1/UNC-84 (SUN)-domain proteins.SUN domain proteins are part of the cytoskeletal-nucleoskeletal bridging complexes. These proteins are localized to the nuclear envelope and are present as homomers and heteromers in vivo. Involved in maintaining the elongated nuclear shape of epidermal cells.

Product citations

Selected references Wang et al. (2019) OPENER Is a Nuclear Envelope and Mitochondria Localized Protein Required for Cell Cycle Progression in Arabidopsis. Plant Cell. 2019 Jul;31(7):1446-1465. doi: 10.1105/tpc.19.00033

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