豆血紅蛋白
化合物
豆血紅蛋白(英語:Leghemoglobin,也稱為「豆科血紅素」,legoglobin)是一類在豆類植物的根瘤中參與固氮作用的血紅素蛋白。它是由這些植物的根在被固氮細菌定殖後產生的,這一類細菌稱為「根瘤菌」。這是一種植物和細菌相互共生的關係:沒有根瘤菌屬(Rhizobium)細菌定殖,大豆的根不會合成豆血紅蛋白。豆血紅蛋白在化學和結構上類似於哺乳動物的血紅蛋白,並且因含有血基質也呈紅色。[1][2]
參考文獻
- ^ 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.