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Developmental changes in the expression of HMG 2a protein
Author(s) -
Oka Tatsuzo,
Sasakawa Tkayo,
Komori Naomi,
Miyamoto Ken-ichi,
Suzuki Isao,
Sassa Toshihiro,
Natori Yasuo
Publication year - 1993
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(93)81728-i
Subject(s) - gizzard , messenger rna , hmg coa reductase , medicine , endocrinology , biology , stimulation , enzyme , reductase , biochemistry , gene , zoology
The levels of HMG 2a chromosomal protein and its mRNA change during the post‐hatched development of chicks were investigated. The contents of both HMG 2a and 2b proteins of liver, heart, brain, muscle and gizzard were abundant in the newly hatched chicks but their contents decreased significantly in those tissues of the 70‐day‐old chicks. The HMG 2a mRNA levels of liver, heart and brain in 70‐day‐old chick decreased to about 40% of those mRNA in the newly hatched chicks while the HMG 2a mRNA levels of muscle and gizzard in the 70‐day‐old chicks increased 5‐ and 3‐fold, respectively. These results suggest that the decrease in the HMG 2a protein contents of the muscle and gizzard in the 70‐day‐old chicks may be largely due to the stimulation of HMG 2a protein degradation or the reduction of HMG 2a mRNA translation.