Expression of D7 and D7-related proteins in the salivary glands of the human malaria mosquito Anopheles stephensi
Full-length cDNA clones encoding D7 (AnsD7) and D7-related (AnsD7r1) secreted salivary gland proteins were isolated from Anopheles stephensi. Corresponding proteins were separated by SDS-PAGE and analysed by N-terminal sequencing, which also identified a second D7-related protein (AnsD7r2). AnsD7 en...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0035999908&partnerID=40&md5=9b031bda295c67291867c79f6b3eef3d http://cmuir.cmu.ac.th/handle/6653943832/2543 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | Full-length cDNA clones encoding D7 (AnsD7) and D7-related (AnsD7r1) secreted salivary gland proteins were isolated from Anopheles stephensi. Corresponding proteins were separated by SDS-PAGE and analysed by N-terminal sequencing, which also identified a second D7-related protein (AnsD7r2). AnsD7 encodes a protein of 37 kDa, AnsD7r1 of 18 kDa, and AnsD7r2 of 16 kDa. Polyclonal antibodies against recombinant AnsD7 showed immunological cross-reactivity with the D7-related proteins, and alignment demonstrated sequence similarity between the C-terminal region of AnsD7 and the D7-related proteins. AnsD7, AnsD7r1 and AnsD7r2 were major female-specific salivary gland proteins, and Western blotting, immunohistochemistry and immunogold labelling demonstrated expression was predominantly in the secretory cavities of the distal-lateral and median lobes. Expression and localization of D7 and D7-related proteins was similar in Plasmodium berghei-infected and uninfected mosquitoes. |
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