The ancient molecule
نویسندگان
چکیده
منابع مشابه
Mannose-binding lectin: ancient molecule, interesting future.
Five hundred sixty-five million years ago, when the world was empty and barren because animal life had not colonized land yet, a common ancestor that we share with sea squirts (Ascidians) inhabited the seas. One of the genes that we still share with sea squirts today is a gene for mannose-binding lectin (MBL), signifying that this gene has existed for 1565 million years [1, 2] and, thus, has be...
متن کاملPolyphosphate: an ancient molecule that links platelets, coagulation, and inflammation.
Inorganic polyphosphate is widespread in biology and exhibits striking prohemostatic, prothrombotic, and proinflammatory effects in vivo. Long-chain polyphosphate (of the size present in infectious microorganisms) is a potent, natural pathophysiologic activator of the contact pathway of blood clotting. Medium-chain polyphosphate (of the size secreted from activated human platelets) accelerates ...
متن کاملThe effect of environmental factors on the location of ancient sites around the ancient northern lakes of the desert plain (Holocene)
Introduction Site selection of human habitats in pre-historic times, unlike the current periods, has been strongly influenced by natural factors. Studies may be focused on three areas including paleoclimate, paleogeomorphology and archeology in order to identify environmental factors affecting primary habitats. Based on studies, most of the ancient lakes in central Iran were formed during the Q...
متن کاملAncient Astronomy, Science And The Ancient Greeks
In fact, this assumption is incorrect and, whilst the Ancient Greek astronomers made huge contributions to astronomy, their knowledge was built upon the solid foundations laid by other great cultures. The Mesopotamian [1] and Zoroastrian astronomers and astrologers, in the Fertile Crescent and the empty deserts of Persia, made many sophisticated observations and devised complex theories to desc...
متن کاملAncient Astronomy, Science And The Ancient Greeks
In fact, this assumption is incorrect and, whilst the Ancient Greek astronomers made huge contributions to astronomy, their knowledge was built upon the solid foundations laid by other great cultures. The Mesopotamian [1] and Zoroastrian astronomers and astrologers, in the Fertile Crescent and the empty deserts of Persia, made many sophisticated observations and devised complex theories to desc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1994
ISSN: 0028-0836,1476-4687
DOI: 10.1038/367228a0