豆血红蛋白
化合物
豆血红蛋白(英语:Leghemoglobin,也称为“豆科血红素”,legoglobin)是一类在豆类植物的根瘤中参与固氮作用的血红素蛋白。它是由这些植物的根在被固氮细菌定殖后产生的,这一类细菌称为“根瘤菌”。这是一种植物和细菌相互共生的关系:没有根瘤菌属(Rhizobium)细菌定殖,大豆的根不会合成豆血红蛋白。豆血红蛋白在化学和结构上类似于哺乳动物的血红蛋白,并且因含有血红素也呈红色。[1][2]
参考文献
- ^ Nadler KD, Avissar YJ. Heme Synthesis in Soybean Root Nodules: I. On the Role of Bacteroid delta-Aminolevulinic Acid Synthase and delta-Aminolevulinic Acid Dehydrase in the Synthesis of the Heme of Leghemoglobin. Plant Physiology. September 1977, 60 (3): 433–6. PMC 542631 . PMID 16660108. doi:10.1104/pp.60.3.433.
- ^ O'Brian MR, Kirshbom PM, Maier RJ. Bacterial heme synthesis is required for expression of the leghemoglobin holoprotein but not the apoprotein in soybean root nodules. Proceedings of the National Academy of Sciences of the United States of America. December 1987, 84 (23): 8390–3. Bibcode:1987PNAS...84.8390O. PMC 299548 . PMID 3479799. doi:10.1073/pnas.84.23.8390.