IgA antibody
Rabbit anti Sheep IgA antibody used as a capture reagent (AHP949) together with horseradish peroxidase conjugated Rabbit anti Sheep IgA antibody (AHP949P) as a detection reagent for the measurement of total IgA in sheep saliva using a sandwich ELISA.
Image caption:
Stability of total sheep IgA (A) and IgG (B) (n = 15), rGT2-specific IgA (C) and IgG (D) (n = 10) exposed to rumen contents from sheep. Saliva was added to rumen contents with or without addition of protease inhibitor or added to PBS. Ig concentrations were measured by ELISA. Data are presented as mean (± SE) proportion of antibody relative to levels at time 0. Significant differences to time 0 were shown as *P <0.05, **P <0.001.
From: Subharat S, Shu D, Zheng T, Buddle BM, Kaneko K, Hook S, et al. (2016)
Vaccination of Sheep with a Methanogen Protein Provides Insight into Levels of Antibody in Saliva Needed to Target Ruminal Methanogens.
PLoS ONE 11(7): e0159861.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Horseradish peroxidase conjugated Rabbit anti Sheep IgA antibody (AHP949P) used as a detection reagent for the measurement of total IgA in sheep saliva by western blotting.
Image caption:
Western blot analysis showing the stability of sheep IgA (left) and IgG (right) before (0 h) and after (4 h) incubation with sheep rumen contents or PBS at 39°C. Lane 1: standards of different molecular weights; lane 2: rumen contents (0 h); lane 3: rumen contents (4 h); lane 4: rumen contents with protease inhibitor (0 h); lane 5: rumen contents with protease inhibitor (4 h); lane 6: PBS (0 h) and lane 7: PBS (4 h).
From: Subharat S, Shu D, Zheng T, Buddle BM, Kaneko K, Hook S, et al. (2016)
Vaccination of Sheep with a Methanogen Protein Provides Insight into Levels of Antibody in Saliva Needed to Target Ruminal Methanogens.
PLoS ONE 11(7): e0159861.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Rabbit anti Sheep IgA antibody(AHP949) used as a capture reagent for ovine IgA in a sandwich ELISA along with horseradish peroxidase conjugated Rabbit and Sheep IgA antibody (AHP949P) as a detection reagent to measure total fecal IgA in ovine samples and, with mouse monoclonal anti T. circumcincta antibody, clone 2F1 together with horseradish peroxidase conjugated Goat anti Moiuse IgG1 antibody (STAR132P) to detect parasite specific IgA response, also using a sandwich ELISA technique.
Image caption:
Scatterplots showing relationships among the four fecal antibody measures (“anti‐Tc”: anti‐T. circumcincta antibodies). X‐axis and y‐axis units represent optical densities at a wavelength of 450 nm.
From: Watt KA, Nussey DH, Maclellan R, Pilkington JG, McNeilly TN.
Fecal antibody levels as a noninvasive method for measuring immunity to gastrointestinal nematodes in ecological studies.
Ecol Evol. 2015 Dec 8;6(1):56-67.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Relationship between fecal and plasma antibody measurements.
Rabbit anti Sheep IgA antibody(AHP949) used as a capture reagent for onvine IgA in a sandwich ELISA along with horseradish peroxidase conjugated Rabbit and Sheep IgA antibody (AHP949P) as a detection reagent to measure total fecal IgA in ovine samples and, with mouse monoclonal anti T. circumcincta antibody, clone 2F1 together with horseradish peroxidase conjugated Goat anti Moiuse IgG1 antibody (STAR132P) to detect parasite specific IgA response, also using a sandwich ELISA technique.
Image caption:
Scatterplots showing relationships between the four fecal antibody measures and the five plasma antibody measures (“anti‐Tc”: anti‐T. circumcincta antibodies), with points in red where the correlation was statistically significant. X‐axis and y‐axis units represent optical densities at a wavelength of 450 nm.
From: Watt KA, Nussey DH, Maclellan R, Pilkington JG, McNeilly TN.
Fecal antibody levels as a noninvasive method for measuring immunity to gastrointestinal nematodes in ecological studies.
Ecol Evol. 2015 Dec 8;6(1):56-67.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Antibody response by age and sex group.
Rabbit anti Sheep IgA antibody(AHP949) used as a capture reagent for onvine IgA in a sandwich ELISA along with horseradish peroxidase conjugated Rabbit and Sheep IgA antibody (AHP949P) as a detection reagent to measure total fecal IgA in ovine samples and, with mouse monoclonal anti T. circumcincta antibody, clone 2F1 together with horseradish peroxidase conjugated Goat anti Moiuse IgG1 antibody (STAR132P) to detect parasite specific IgA response, also using a sandwich ELISA technique.
Image caption:
Variation in the four fecal and five plasma antibody measures with respect to age and sex group. Each data point is represented by a black dot. For box plots, the bar in centre of box represents the median value, the box represents the interquartile range, and bars indicate the 5–95th percentile range. fem, female.
From: Watt KA, Nussey DH, Maclellan R, Pilkington JG, McNeilly TN.
Fecal antibody levels as a noninvasive method for measuring immunity to gastrointestinal nematodes in ecological studies.
Ecol Evol. 2015 Dec 8;6(1):56-67.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Antibody response by Fecal egg count according to age and weight.
Rabbit anti Sheep IgA antibody(AHP949) used as a capture reagent for onvine IgA in a sandwich ELISA along with horseradish peroxidase conjugated Rabbit and Sheep IgA antibody (AHP949P) as a detection reagent to measure total fecal IgA in ovine samples and, with mouse monoclonal anti T. circumcincta antibody, clone 2F1 together with horseradish peroxidase conjugated Goat anti Moiuse IgG1 antibody (STAR132P) to detect parasite specific IgA response, also using a sandwich ELISA technique.
Image caption:
Variation in weight (A) and log‐transformed strongyle fecal egg count (FEC) with respect to age and sex groups, with the mean and SEM indicted by the bars. (C, D): Scatterplot illustrating the significant negative correlation between FEC and fecal anti‐T. circumcincta IgA and IgG antibody levels, respectively.
From: Watt KA, Nussey DH, Maclellan R, Pilkington JG, McNeilly TN.
Fecal antibody levels as a noninvasive method for measuring immunity to gastrointestinal nematodes in ecological studies.
Ecol Evol. 2015 Dec 8;6(1):56-67.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Horseradish peroxidase conjugated Rabbit anti Ovine IgA antibody (AHP949P) used to assess IgA levels in Soay sheep by ELISA.
Image caption:
Schematic diagram summarizing the pairwise associations found between anti Teladorsagia circumcincta IgA, IgE, and IgG levels and August strongyle fecal egg count (FEC), August weight, overwinter survival, and breeding success for Soay sheep lambs (left) and adults (right) split by sex (gray = males; yellow = females). For clarity, quadratic associations and density × antibody interactions are removed. Line type indicates the significance of the relationship (see key), and labels indicate whether these associations were positive (+ve) or negative (−ve).
From: Sparks AM, Watt K, Sinclair R, Pilkington JG, Pemberton JM, Johnston SE, McNeilly TN, Nussey DH.
Natural Selection on Antihelminth Antibodies in a Wild Mammal Population.
Am Nat. 2018 Dec;192(6):745-60.
doi: 10.1086/700115.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Horseradish peroxidase conjugated Rabbit anti Sheep IgA antibody (AHP949P) used to assess IgA levels in ovine plasma samples by ELISA.
Image caption:
Distribution of anti-Teladorsagia circumcincta IgA levels with age and sex in Soay sheep.
From: Sparks AM, Watt K, Sinclair R, Pilkington JG, Pemberton JM, McNeilly TN, et al. (2019)
The genetic architecture of helminth-specific immune responses in a wild population of Soay sheep (Ovis aries).
PLoS Genet 15(11): e1008461.
doi: 10.1371/journal.pgen.1008461
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Filter by Application:
E WB ResetRabbit anti Sheep IgA
- Product Type
- Polyclonal Antibody
- Isotype
- Polyclonal IgG
- Specificity
- IgA
Antibody Quality and 
Unrivaled 
| Rabbit anti sheep IgA antibody recognizes ovine IgA. This antibody has been shown to react with ovine IgA by immunoelectrophoresis and ELISA. Rabbit anti sheep IgA antibody may cross react with IgA from other species. |
- Target Species
- Sheep
- Product Form
- Purified IgG - liquid
- Antiserum Preparation
- Antisera to ovine IgA were raised by repeated immunisations of rabbits with highly purified antigen. Purified IgG prepared by affinity chromatography.
- Buffer Solution
- Phosphate buffered saline
- Preservative Stabilisers
0.09% Sodium Azide - Approx. Protein Concentrations
- IgG concentration 1.0 mg/ml
- Regulatory
- For research purposes only
- Guarantee
- 12 months from date of despatch
Store at +4oC. DO NOT FREEZE.
This product should be stored undiluted. Should this product contain a precipitate we recommend microcentrifugation before use.
This product should be stored undiluted. Should this product contain a precipitate we recommend microcentrifugation before use.
This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
| Application Name | Verified | Min Dilution | Max Dilution |
|---|---|---|---|
| ELISA |  |
1/100 | 1/10,000 |
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
| Description | Product Code | Applications | Pack Size | List Price | Your Price | Quantity | |
|---|---|---|---|---|---|---|---|
| Goat anti Rabbit IgG (H/L):HRP | STAR124P | C E WB | 1 mg |
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| Description | Goat anti Rabbit IgG (H/L):HRP | ||||||
| Sheep anti Rabbit IgG:RPE | STAR35A | F | 1 ml |
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| Description | Sheep anti Rabbit IgG:RPE | ||||||
| Goat anti Rabbit IgG (Fc):Biotin | STAR121B | E WB | 1 mg |
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| Description | Goat anti Rabbit IgG (Fc):Biotin | ||||||
| Goat anti Rabbit IgG (Fc):FITC | STAR121F | F | 1 mg |
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| Description | Goat anti Rabbit IgG (Fc):FITC | ||||||
| Goat anti Rabbit IgG (Fc):HRP | STAR121P | E WB | 1 mg |
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| Description | Goat anti Rabbit IgG (Fc):HRP | ||||||
| Sheep anti Rabbit IgG:FITC | STAR34B | C F | 1 mg |
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| Description | Sheep anti Rabbit IgG:FITC | ||||||
References for IgA antibody
-
Murphy, L. et al. (2010) Genetic variation among lambs in peripheral IgE activity against the larval stages of Teladorsagia circumcincta.
Parasitology. 137: 1249-60. -
Hine, B.C. et al. (2010) Selective transport of IgE into ovine mammary secretions.
Res Vet Sci. 89 (2): 184-90. -
Vande Walle, K. et al. (2011) Rectal inoculation of sheep with E. coli O157:H7 results in persistent infection in the absence of a protective immune response.
Vet Microbiol. 147 (3-4): 376-82. -
Díaz, A.G. et al. (2016) Spray dried microspheres based on chitosan: A promising new carrier for intranasal administration of polymeric antigen BLSOmp31 for prevention of ovine brucellosis.
Mater Sci Eng C Mater Biol Appl. 62: 489-96. -
Díaz, A.G. et al. (2016) Immune response induced by conjunctival immunization with polymeric antigen BLSOmp31 using a thermoresponsive and mucoadhesive in situ gel as vaccine delivery system for prevention of ovine brucellosis.
Vet Immunol Immunopathol. 178: 50-6. -
Subharat, S. et al. (2016) Vaccination of Sheep with a Methanogen Protein Provides Insight into Levels of Antibody in Saliva Needed to Target Ruminal Methanogens.
PLoS One. 11 (7): e0159861. -
Watt, K.A. et al. (2016) Fecal antibody levels as a noninvasive method for measuring immunity to gastrointestinal nematodes in ecological studies.
Ecol Evol. 6 (1): 56-67. -
Sparks, A.M. et al. (2018) Natural Selection on Antihelminth Antibodies in a Wild Mammal Population.
Am Nat. 192 (6): 745-60.
View The Latest Product References
-
Sparks, A.M. et al. (2019) The genetic architecture of helminth-specific immune responses in a wild population of Soay sheep (Ovis aries.).
PLoS Genet. 15 (11): e1008461. -
Ramos, A. et al. (2018) Melatonin enhances responsiveness to Dichelobacter nodosus vaccine in sheep and increases peripheral blood CD4 T lymphocytes and IgG-expressing B lymphocytes.
Vet Immunol Immunopathol. 206: 1-8. -
Fairlie-Clarke, K. et al. (2019) Salivary IgA: A biomarker for resistance to Teladorsagia circumcincta and a new estimated breeding value.
Vet Parasitol. 269: 16-20.
- RRID
- AB_567006
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