Georg-August-University of Göttingen, Johann-Friedrich-Blumenbach-Institute for Zoology and Anthropology, Developmental Biology
No.
#100023
日期
2016.05.03
抗原
Outer Dense Fiber of Sperm Tails 2 (ODF2)
Lot Number
Method validated
Western Blotting
Positive Control
recombinant ODF2-His, bacterially expressed; NIH3T3 total cell lysate
Negative Control
Notes
Passed, regarding sensitivity and specificity. The antibody detects bacterially expressed ODF2 (see 2)) and the endogenous protein (see 3)) with only moderate background staining in WB.
Validation Images
1. Positive control: protein ODF2-His, bacterially expressed, different amounts per lane, detection with anti His-Tag antibody (Novagen, 70796-3, Lot number N37164) (1:1,000). Secondary antibody anti mouse-HRP (Sigma-Aldrich A9044, Batch Number 034M4761) (1:10,000). 2. Test: protein ODF2-His, bacterially expressed, different amounts per lane, detection with anti ODF2 (ABIN2430582). 3.NIH3T3 total cell lysate (125µg/per lane), detection with anti ODF2 (ABIN2430582). Expected molecular weight of endogenous ODF2
Full Methods
Primary Antibody
ABIN2430582
Secondary Antibody
anti rabbit IgG (H+L), HRP-linked (Jackson Immuno Research, Code number: 111-035-003, Lot number: 123450)
Full Protocol
Proteins separated on 10% SDS-PAGE (Laemmli 1970), blotted to Protran (GE Healthcare No. 10600004, 0.2 µm) (Towbin et al., 1979). Blocking of membrane in 5% skim milk in TBST (50 mM Tris-HCl, pH 7.4, 150 mM NaCl, 0.1% Tween 20) for 30 min at room temperature.
Incubation with first antibody in 5% skim milk in TBST at 4°C overnight.
Washing in TBST for 30 minutes at room temperature.
Incubation with secondary antibody in 5% skim milk in TBST for 45 minutes at room temperature. Washing in TBST for 30-45 minutes at room temperature.
Secondary antibody: anti rabbit IgG (H+L), HRP-linked (Jackson Immuno Research, Code number: 111-035-003, Lot number: 123450). Dilution: 1:10,000.
Chemiluminescence detection (Western Lightning Ultra, Lot 215-15091, Perkin Elmer) and image capture via BioRad Chemdoc or X-ray films.
Experimental Notes
生效 #100024
(Immunocytochemistry)
by
Georg-August-University of Göttingen, Johann-Friedrich-Blumenbach-Institute for Zoology and Anthropology, Developmental Biology
No.
#100024
日期
2016.05.03
抗原
Outer Dense Fiber of Sperm Tails 2 (ODF2)
Lot Number
Method validated
Immunocytochemistry
Positive Control
mouse anti-γ-tubulin (Sigma-Aldrich, clone GTU-88, T6557, lot number 072M4808)
Negative Control
Notes
Passed, the antibody detects centrosomal ODF2 in immunocytological preparations with only very low background staining (the green dots are mostly the correct location of ODF2 as they overlap with γ-tubulin spots (in red)).
Validation Images
Anti-ODF2 antibody ABIN2430582 (ESAP15572) is detected with a MFP488 goat anti-rabbit IgG (H+L) secondary antibody (green). The control mouse anti-γ-tubulin antibody is detected with a MFP590 goat anti-mouse secondary antibody (red). DNA is counterstained with DAPI (blue).
NIH3T3 cells (ATCC) were grown on cover slips in DMEM, 10% fetal bovine serum, 5% penicillin/streptomycin (all Gibco) at 37°C in 5% CO2.
Cells were fixed in ice-cold methanol for 20 min at -20°C.
Unspecific binding sites were blocked in PBST (phosphate buffered saline (PBS) containing 0.15% bovine serum albumin, 0.1% Tween-20) for 1 hr.
Cells were incubated with the primary antibodies at 4°C overnight.
Cells were washed in TBST (50 mM Tris-HCl, pH 7.4, 150 mM NaCl, 0.1% Tween 20) for 15 min.
Cells were incubated with secondary antibodies and DAPI for 1h at 37°C.
Cells were washed in TBST for 15 min.
Cells were embedded in Dako Fluorescent Mounting Medium (Dako).
As positive control for centrosomal decoration anti ?-tubulin (Sigma-Aldrich, clone GTU-88, T6557, lot number 072M4808; 1:100) was used. anti ?-tubulin was detected with MFP590 goat anti-mouse IgG (H+L) (MoBiTec, #MFP-A1032; 1:300).
Anti ODF2-antibody was detected with MFP488 goat anti-rabbit IgG (H+L) (MoBiTec, #MFP-A1008; 1:300).
DNA was counterstained with DAPI.
Images were taken by confocal microscopy (LSM 510, Zeiss), and processed using Adobe Photoshop 5.0.
Experimental Notes
状态
Liquid
浓度
0.3 mg/mL
缓冲液
PBS with 0.05 % sodium azide and 50 % glycerol, PH7.4
储存液
Sodium azide
注意事项
Avoid freeze / thaw cycles.
储存条件
-20 °C
储存方法
Store at -20°C. Avoid freeze / thaw cycles.
Rahimi, Cai, Kılıҫ, Kazerouni, Tapia Contreras, Hoyer-Fender: "Expression of α-Tubulin Acetyltransferase 1 and Tubulin Acetylation as Selective Forces in Cell Competition." in: Cells, Vol. 10, Issue 2, (2021) (PubMed).
Tapia Contreras, Hoyer-Fender: "CCDC42 Localizes to Manchette, HTCA and Tail and Interacts With ODF1 and ODF2 in the Formation of the Male Germ Cell Cytoskeleton." in: Frontiers in cell and developmental biology, Vol. 7, pp. 151 (PubMed).
The outer dense fibers are cytoskeletal structures that surround the axoneme in the middle piece and principal piece of the sperm tail. The fibers function in maintaining the elastic structure and recoil of the sperm tail as well as in protecting the tail from shear forces during epididymal transport and ejaculation. Defects in the outer dense fibers lead to abnormal sperm morphology and infertility. This gene encodes one of the major outer dense fiber proteins. Alternative splicing results in multiple transcript variants.