中文题名 / Chinese title: 腕足动物舌形贝血红蛋白样载氧蛋白的氧平衡
英文题名 / English title: Oxygen equilibrium of brachiopod Lingula hemerythrin.
作者 / Authors: MANWELL C.
期刊 / Journal: Science
年份 / Year: 1960
DOI: 10.1126/science.132.3426.550
论文链接 / Article: https://doi.org/10.1126/science.132.3426.550
摘要来源 / Abstract source: https://europepmc.org/article/MED/14420790

英文摘要原文 / Original English abstract
In contrast to hemerythrin from five different species of sipunculid worms, ecardine brachiopod Lingula hemerythrin has an oxygen equilibrium which is reversibly altered by pH changes, both the oxygen affinity (Bohr effect) and the interactions between oxygen-binding centers being a function of pH. The significance of these phenomena is discussed in view of the phylogenetic distribution of hemerythrin and the function of respiratory pigments.

摘要依据的主要发现 / Findings based on the abstract
舌形贝蚯蚓血红蛋白的氧亲和力及载氧中心间相互作用受 pH 可逆影响，其表现不同于所比较的五种星虫类载氧蛋白。
Lingula hemerythrin shows reversible pH effects on oxygen affinity and interactions between oxygen-binding centres. Its behavior differs from hemerythrins examined in five sipunculid worm species.

摘要依据的结论 / Conclusions based on the abstract
无脊椎动物不同谱系的呼吸蛋白功能存在差异；这提供比较生理证据，而非直接检验形态停滞。
Respiratory-protein function varies among invertebrate lineages, providing comparative physiological evidence rather than a direct test of morphological stasis.

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