David R. Wolstenholme, Kwang W. Jeon (Eds.)'s International Review of Cytology, Vol. 141 PDF


By David R. Wolstenholme, Kwang W. Jeon (Eds.)

ISBN-10: 0123645441

ISBN-13: 9780123645449

As a way to stay alongside of heightened curiosity in non-nuclear genetic fabric, this quantity offers the newest info at the genetics and molecular biology of mitochondria. "Mitochondrial Genomes" discusses the constitution, functionality, evolution and transcription of mitochondrial genomes, in addition to the $64000 sector of nuclear-mitochondrial genome transactions. Written by means of lively researchers within the box, this quantity good points chapters on mitochondrial genomes of varied organisms - from vegetation to raised animals. subject matters lined comprise the evolution of mitochondrial genomes in fungi, the constitution and serve as of genomes of mitochondria in crops, flagellates, ciliates, and better animals, and the endosymbiont speculation for the beginning of mitochondria. "Mitochondrial genomes" additionally discusses the genetics of mitochondria, the molecular biology of mitochondria and the foundation and evolution of mitochondrial genomes.

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Extra resources for International Review of Cytology, Vol. 141

Example text

Aur T. pyrf HumanP N . crassah ndh2 P . aur Marc cp" Humant ndh3 % Identity Residues 100 99 47 47 139 123 123 21 22 259 277 272 42 28 36 119 119 122 123 34 35 400 392 393 48 45 45 156 243 247 248 65 32 35 26 1 284 318 37 1 193 so1 N. crassa' 20 16 17 P. aur Marc cp" P. and HumanY 25 24 21 347 583 120 120 130 1 I5 23 22 23 474 499 488 459 27 28 570 693 715 P . aur Marc cpa A . nid' Human8 P . aur Marc cp" N. crassa' (continued) 40 DONALD J. CUMMINGS TABLE I (continued) Gene cyt b ATP9 COI COIl Organism P .

Aurelia mitochondrial genes are quite divergent and are difficult to identify by computer comparisons with known genes. But the presence of chloroplast-type ndh genes may indicate that P. aurelia mitochondria have an unusual NADH complex. Other genes also appear to be absent from the P. aureliu mitochondrial genome. We have yet to identify convincingly cytochrome oxidase C subunit I11 (COIII) and ATPase 6 and 8 of the Fo moiety of the ATPase complex. Thus, the Paramecium genome appears to be also unique in encoding atp9, which is not found in animal mitochondrial genomes, and not encoding atp6 or -8, which are found in most fungal and animal mitochondrial genomes.

Anserina, whereas in Tetrahymena it is a highly AT-rich unstructured sequence. Although our results on the S1 analyses of the 3‘ end of P . aurelia SSU did indeed show full protection to the expected 3‘ end, a major protected site was the SV5 region as well as another site in the SV9 region. It may be that further surprises are in store when these molecules are reexamined. The failure to detect a precursor relationship with the a and components in both P . aurelia and T. pyriformis suggests that the two components are not cotranscribed.

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International Review of Cytology, Vol. 141 by David R. Wolstenholme, Kwang W. Jeon (Eds.)

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