کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2015451 | 1067568 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Expression and in silico structural analysis of a rice (Oryza sativa) hemoglobin 5
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work reports the analysis of an additional hemoglobin (hb) gene copy, hb5, in the genome of rice. The amino acid sequence of Hb5 differs from the previously determined rice Hbs 1-4 in missing 11 residues in helix E. Transcripts of hb5 were found to be ubiquitous in rice organs, and hormone- and stress-response promoters exist upstream of the rice hb5 gene. Furthermore, the modeled structure of Hb5 based on the known crystal structure of rice Hb1 is unusual in that the putative distal His is distant from the heme Fe. This observation suggests that Hb5 binds and releases O2 easily and thus that it functions as an O2-carrier or in some aspects of the O2 metabolism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 46, Issue 10, October 2008, Pages 855-859
Journal: Plant Physiology and Biochemistry - Volume 46, Issue 10, October 2008, Pages 855-859
نویسندگان
Verónica Garrocho-Villegas, Genoveva Bustos-Rivera, Julian Gough, Serge N. Vinogradov, Raúl Arredondo-Peter,