Blood oxygen affinity analyzer

在脊椎动物血液的红细胞(红细胞)中发现的呼吸色素血红蛋白是一个由两个α-和两个β-珠蛋白多肽链组成的四个单位的分子，每个多肽链都与一个含铁的血红素基团(氧结合的部位)结合。血液将外部环境条件与细胞代谢过程直接联系在一起，因此，这种分子的生理特性必须经过精心设计，以在各种条件下平衡肺部的氧气摄取及其向组织的输送。由于所有脊椎动物血红蛋白的血红素组是相同的，脊椎动物血红蛋白结合特性之间的差异取决于其珠蛋白链的氨基酸组成，不同物种之间的氨基酸组成可能有很大差异。事实上，由于α-和β-珠蛋白基因DNA中的碱基替换而导致的少数氨基酸残基的变化，可能会产生

Found within the erythrocytes (red blood cells) of vertebrate blood, the respiratory pigment hemoglobin is a four-unit molecule consisting of two alpha- and two beta-globin polypeptide chains, each of which is bound to an iron-containing heme group (the site for oxygen-binding). Blood directly links external environmental conditions with cellular metabolic processes, hence the physiological properties of this molecule must be exquisitely tailored to balance the uptake of oxygen at the lung and its delivery to the tissues over a wide range of conditions. Because the heme groups of all vertebrate hemoglobins are identical, differences between the binding characteristics of vertebrate hemoglobins are reliant on the amino-acid composition of their globin chains, which can vary substantially between species. Indeed, changes of just a few amino-acid residues, resulting from base substitutions within the DNA of the alpha- and beta-globin genes, can have