Cover Graphics

DNA double helix structure: Crystal structure and stability of a DNA duplex containing A(anti). G(syn) base-pairs
(Protein Data Bank, USA)


DNA (deoxyribonucleic acid) is the substance making up genes, found in some viruses and all living cells; in eukaryotic organisms DNA is contained in the nucleus. It consists of four types of bases: adenine (A), guanine (G), cytosine (C) and thymine (T), normally arranged in a double helix structure formed by complementary bases A-T or G-C between two DNA strands. These base sequences contain genetic information such as proteins. In 1953 James D. Watson and F. H. C. Crick proposed the double helix structure as the molecular model of deoxyribonucleic acid, a hugely important development in molecular biology.
The present cover illustration shows the crystal structure of a B-DNA double helix containing base-pairs corresponding to the Watson-Crick model as well as a mismatched base-pair, adenine-guanine. Published by T. Brown et al., 1989.

Emi Koseto
Museum Science Department, National Museum of Japanese History


Opening Essay

Special Edition History's First Steps - DNA (Emi Koseto)

A Witness to History

A photographic introduction to items from the collection
Chinese Ceramics
(Masatoshi Ono)

Special Edition:History's First Steps - DNA

When History meets Molecular Biology - In search of flora that crossed the ocean (Seiichiro Tsuji)
Zoology, and an examination of ancient DNA - a genetic analysis of mammoth and brown-bear remains (Ryuichi Masuda)
Excavating Japanese chestnuts (Michiko Niimi )


Pigs at the Satsuma clan residence in Edo (Yoko Yamane)
Mapping pigs' hair colour (Takeshi Hayashi)

The 43rd Rekihaku Dialogue: Ken'ichi Shinoda talks to Toyohiro Nishimoto

Current developments in DNA Anthropology

The 12th Rekihaku Research Update

International Seminar - Flora that crossed the ocean; Siebold and plants
Rekihaku Forum - Flora that crossed the ocean 2002; the world of melons and potatoes
(Seiichiro Tsuji)

Introducing our Researchers - Part 4

A personal view of Anthropology and History (Jiro Muraki)

Book Review

The Chronological History of Japan (1) "The birth of Wa-koku in ancient Japan", edited by Taichiro Shiraishi
Reviewed by Teruhiko Takahashi
Rekihaku Forum -"Historical Relations between Asia and Japan from the standpoint of Ceramics",
a collection of essays, National Museum of Japanese History Research Report No. 94
"Historical Relations between Asia and Japan from the standpoint of Ceramics"
Reviewed by Masaaki Arakawa

Exhibition Review

Special Exhibition: Male and Female Accessories - Techniques and Designs from the Edo to Meiji periods
The little props that art history overlooked
Reviewed by Satoko Tamamushi

Rekihaku Chat (readers' page) Nov. 20, 2002

Rekihaku News