EurekaMag.com logo
+ Site Statistics
References:
48,252,460
Abstracts:
22,798,453
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The mitochondrial dna molecule of drosophila yakuba nucleotide sequence gene organization and genetic code


, : The mitochondrial dna molecule of drosophila yakuba nucleotide sequence gene organization and genetic code. Journal of Molecular Evolution 22(3): 252-271

The sequence of the 16,019 nucleotide-pair mitochondrial DNA (mtDNA) molecule of Drosophila yakuba is presented. This molecule contains the genes for two rRNAs, 22 tRNAs, six identified proteins [cytochrome b, cytochrome c oxidase subunits I, II, and III (COI-III), and ATPase subunits 6 and 8] and seven presumptive proteins (URF1-6 and URF4L). Replication originates within a regin of 1077 nucleotides that is 92.8% A + T and lacks any open reading frame larger than 123 nucleotides. An equivalent to the sequence found in all mammalian mtDNA that is associated with initiation of second-strand DNA synthesis is not present in D. yakuba mtDNA. Introns are absent from D. yakuba mitochondrial genes and there are few (0-31) intergenic nucleotides. The genes found in D. yakuba and mammalian mtDNAs are the same, but there are differences in their arrangement and in the relative proportions of the complementary strands of the molecule that serve as templates for transcription. Although the D. yakuba small and large mitochondrial rRNA genes are exceptionally low in G and C and are shorter than any other metazoan rRNA genes reported, they can be folded into secondary structres remarkably similar to the secondary structures proposed for mammalian mitochondria rRNAs. D. yakuba mitochondrial tRNA genes, like their mammalian counterparts, are more variable in sequence than nonorganelle tRNAs. In mitochondrial protein genes ATG, ATT, ATA, and in one case (COI) ATAA appear to be used as translation initiation codons. The only termination codon found in these genes is TAA. In the D. yakuba mitochondrial genetic code, AGA, ATA, and TGA specific serine, isoleucine, and tryptophan, respectively. Fifty-nine types of sense codon are used in the D. yakuba mitochondrial protein genes, but 93.8% of all codons end in A or T. Codon-anticodon interactions may include both G-A and C-A pairing in the wobble position. Evidence is summarized that supports the hypothesis that A and T nucleotides are favored at all locations in the D. yakuba mtDNA molecule where these nucleotides are compatible with function.

(PDF 0-2 workdays service)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006719064

PMID: 3001325

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Iannace, C.; D.L.bero, L.; Lepore, M.; D.S.efano, Nè.; Buono, M.; Sciascia, V.; Manetta, F.; Giordano, M.; Scetta, G.; Varriale, R.; Esposito, D.; Tartaglia, E.; Ferbo, U.; Miletto, P.; Caracciolo, F., 2010: Prognostic and curative value of sentinel node in breast cancer. A 377 patients experience. Sentinel node is defined as the first lymphnode receiving limphatic drain from the breast. Several studies show a very low recurrence rate to axillary and locoregional nodes in sentinel node negative patients who did not undergo axillary dissectio...

Tixier-Durivault, A., 1954: Les Octo-coralliaires d'Afrique du Sud. Bull Mus nat Hist nat Paris 2: 26

Tereznikova E.M., 1967: Redescription of genus of psilococcus homoptera coccoidea of the fauna of the ussr. Vestnik Zoologii 1(4): 22-27

Zydowo, M.; Purzycka, J.; Zelewski, L., 1962: The adaptation of AMP aminohydrolase in rat kidney to prolonged acidosis. Three groups of rats were given 0.05 N-HC1, O.1 N-NaHCO3 and tap water, respectively, for 6 months. Acidification caused a two-fold increase of urine ammonia in females and about 50% increase in males. The activity of kidney AMP (adenosine monopho...

Mackenzie, I.; Lever, A., 2007: Management of sepsis. Bmj 335(7626): 929-932

Saito, Y., 1956: An ecological study of Undaria pinnatifida Sur -II On the influence of environmental factors upon the maturity of gametophytes and early development of sporophytes. Maturation in gametophytes usually occurs below 20[degree] C and does not occur above 23[degree]. Sporophytes grow normally between 10-17[degree]. Both processes are adversely affected by chlorinity lower than 1.5%. Rather high light intensity is...

Hext, F.; Stubbings, A.; Bird, B.; Patey, S.; Wright, A., 2012: Visual analogue scores in assessment of acute mountain sickness. Acute mountain sickness (AMS) is common on ascent to high altitude, with self assessment being the current method used to assess symptoms. The Lake Louise Self-Report Score (LLSRS) and the Environmental Symptoms Questionnaire (ESQ) are widely used...

Thorin Trescases N.; Oster L.; Atkinson J.; Capdeville C., 1990: Cytosolic free calcium and vasoconstriction in the normotensive rat tail artery. British Journal of Pharmacology 99(PROC SUPPL APRIL): ABSTRACT 44P

Mira, Jé.Joaquín.; Lorenzo, S.; Guilabert, M.; Pérez-Jover, V., 2012: Do Spaniards know their rights as patients?. In 2002, Spain introduced new legislation regulating the rights of patients. Spaniards have thus seen an increase in their capacity for decision-making, bringing them into line with many other countries. However, the law changes do not mean to be...

Saigg, E., 1957: Submucous hematoma of the ascending colon. Prensa Medica Argentina 44(49): 3557-3558