TY - JOUR

T1 - The inevitability of the bio-molecules

T2 - Five nitrogenous bases and twenty amino acids

AU - Naitoh, Ken

AU - Hashimoto, Kenji

AU - Inoue, Hiromi

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Living beings, which are in a quasi-stable condition (meta-stable) between unstable and neutrally stable, use only five types of nitrogenous bases and 20 amino acids selected naturally. A first-order approximation of the momentum equation derived based on the cyto-fluid dynamic theory reveals the reason why the molecular weight of purines and pyrimidines among the nitrogenous bases varies by only about 1. 5 times, although the variation principle for the energy conservation law cannot do so. Here, we take a higher order of the Taylor series for the unified momentum equation describing the deformation motions of biological molecules. Even-numbered terms such as the second and fourth show no other quasi-stable size ratios. However, odd-numbered terms result in other quasi-stable ratios. The three-fold variation of the molecular weights of amino acids will come from the third term of the Taylor series.

AB - Living beings, which are in a quasi-stable condition (meta-stable) between unstable and neutrally stable, use only five types of nitrogenous bases and 20 amino acids selected naturally. A first-order approximation of the momentum equation derived based on the cyto-fluid dynamic theory reveals the reason why the molecular weight of purines and pyrimidines among the nitrogenous bases varies by only about 1. 5 times, although the variation principle for the energy conservation law cannot do so. Here, we take a higher order of the Taylor series for the unified momentum equation describing the deformation motions of biological molecules. Even-numbered terms such as the second and fourth show no other quasi-stable size ratios. However, odd-numbered terms result in other quasi-stable ratios. The three-fold variation of the molecular weights of amino acids will come from the third term of the Taylor series.

KW - Amino acids

KW - Asymmetry

KW - Cyto-fluid dynamics

KW - Nitrogenous base

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U2 - 10.1007/s10015-011-0964-2

DO - 10.1007/s10015-011-0964-2

M3 - Article

AN - SCOPUS:82555196612

SN - 1433-5298

VL - 16

SP - 407

EP - 410

JO - Artificial Life and Robotics

JF - Artificial Life and Robotics

IS - 3

ER -