Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry
The role of pheromones and pheromone-binding proteins in the laboratory rat has been extensively investigated. However, we have previously reported that the preputial gland of the Indian commensal rat produces a variety of pheromonal molecules and preputial glands would seem to be the predominant so...
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ftiiscindia:oai:eprints.iisc.ernet.in:27105 2023-05-15T18:05:34+02:00 Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry Rajkumar, R Ilayaraja, R Liao, CC Archunan, G Achiraman, S Prakash, S Ng, WV Tsay, YG 2010-03 application/pdf http://eprints.iisc.ernet.in/27105/ http://eprints.iisc.ernet.in/27105/1/wiley.pdf http://www3.interscience.wiley.com/journal/123290531/abstract unknown John Wiley and Sons http://eprints.iisc.ernet.in/27105/1/wiley.pdf Rajkumar, R and Ilayaraja, R and Liao, CC and Archunan, G and Achiraman, S and Prakash, S and Ng, WV and Tsay, YG (2010) Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry. In: Rapid Communications in Mass Spectrometry, 24 (6). pp. 721-728. Biochemistry Journal Article PeerReviewed 2010 ftiiscindia 2014-09-27T17:48:33Z The role of pheromones and pheromone-binding proteins in the laboratory rat has been extensively investigated. However, we have previously reported that the preputial gland of the Indian commensal rat produces a variety of pheromonal molecules and preputial glands would seem to be the predominant source for pheromonal communication. The presence of pheromone-binding proteins has not yet been identified in the preputial gland of the Indian commensal rat; therefore, the experiments were designed to unravel the alpha(2u)-globulin (alpha 2u) and its bound volatiles in the commensal rat. Total preputial glandular proteins were first fractionated by sodium dodecyl sulfate/polyacrylamide gel electrophoresis (SDS-PAGE) and subsequently analyzed by mass spectrometry. Further, we purified alpha 2u and screened for the presence of bound pheromonal molecules with the aid of gas chromatography/mass spectrometry (GC/MS). A novel alpha 2u was identified with a high score and this protein has not been previously described as present in the preputial gland of Indian commensal rats.This novel alpha 2u was then characterized by tandem mass spectrometry (MS/MS). Peptides with m/z values of 969, 1192, 1303 and 1876 were further fragmented with the aid of MS/MS and generated de novo sequences which provided additional evidence for the presence of alpha 2u in the preputial gland. Finally, we identified the presence of farnesol 1 and 2 bound to alpha 2u. The present investigation confirms the presence of alpha 2u (18.54 kDa) in the preputial gland of the Indian commensal rat and identifies farnesol 1 and 2 as probably involved in chemo-communication by the Indian commensal rat.Copyright (C) 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper Rattus rattus Indian Institute of Science, Bangalore: ePrints@IIsc Indian |
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Indian Institute of Science, Bangalore: ePrints@IIsc |
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ftiiscindia |
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unknown |
topic |
Biochemistry |
spellingShingle |
Biochemistry Rajkumar, R Ilayaraja, R Liao, CC Archunan, G Achiraman, S Prakash, S Ng, WV Tsay, YG Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
topic_facet |
Biochemistry |
description |
The role of pheromones and pheromone-binding proteins in the laboratory rat has been extensively investigated. However, we have previously reported that the preputial gland of the Indian commensal rat produces a variety of pheromonal molecules and preputial glands would seem to be the predominant source for pheromonal communication. The presence of pheromone-binding proteins has not yet been identified in the preputial gland of the Indian commensal rat; therefore, the experiments were designed to unravel the alpha(2u)-globulin (alpha 2u) and its bound volatiles in the commensal rat. Total preputial glandular proteins were first fractionated by sodium dodecyl sulfate/polyacrylamide gel electrophoresis (SDS-PAGE) and subsequently analyzed by mass spectrometry. Further, we purified alpha 2u and screened for the presence of bound pheromonal molecules with the aid of gas chromatography/mass spectrometry (GC/MS). A novel alpha 2u was identified with a high score and this protein has not been previously described as present in the preputial gland of Indian commensal rats.This novel alpha 2u was then characterized by tandem mass spectrometry (MS/MS). Peptides with m/z values of 969, 1192, 1303 and 1876 were further fragmented with the aid of MS/MS and generated de novo sequences which provided additional evidence for the presence of alpha 2u in the preputial gland. Finally, we identified the presence of farnesol 1 and 2 bound to alpha 2u. The present investigation confirms the presence of alpha 2u (18.54 kDa) in the preputial gland of the Indian commensal rat and identifies farnesol 1 and 2 as probably involved in chemo-communication by the Indian commensal rat.Copyright (C) 2010 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Rajkumar, R Ilayaraja, R Liao, CC Archunan, G Achiraman, S Prakash, S Ng, WV Tsay, YG |
author_facet |
Rajkumar, R Ilayaraja, R Liao, CC Archunan, G Achiraman, S Prakash, S Ng, WV Tsay, YG |
author_sort |
Rajkumar, R |
title |
Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
title_short |
Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
title_full |
Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
title_fullStr |
Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
title_full_unstemmed |
Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry |
title_sort |
detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the indian commensal rat (rattus rattus) using mass spectrometry |
publisher |
John Wiley and Sons |
publishDate |
2010 |
url |
http://eprints.iisc.ernet.in/27105/ http://eprints.iisc.ernet.in/27105/1/wiley.pdf http://www3.interscience.wiley.com/journal/123290531/abstract |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_relation |
http://eprints.iisc.ernet.in/27105/1/wiley.pdf Rajkumar, R and Ilayaraja, R and Liao, CC and Archunan, G and Achiraman, S and Prakash, S and Ng, WV and Tsay, YG (2010) Detection of alpha(2u)-globulin and its bound putative pheromones in the preputial gland of the Indian commensal rat (Rattus rattus) using mass spectrometry. In: Rapid Communications in Mass Spectrometry, 24 (6). pp. 721-728. |
_version_ |
1766177060109156352 |