scholarly journals Amino acid diversity on the basis of cytochrome b gene in Kacang and Ettawa Grade goats

2017 ◽  
Vol 42 (3) ◽  
pp. 135 ◽  
Author(s):  
D. A. Lestari ◽  
S. Sutopo ◽  
E. Kurnianto

The objectives of study were to identify and assess the amino acid diversity of Cytochrome b (Cyt b) gene, genetic marker and characteristic of specific amino acid in Kacang and Ettawa Grade goat. Nineteen heads of Kacang goat (KG) and twelve heads of Ettawa Grade goat (EG) were purposively sampled. The genomic DNA was isolated by Genomic DNA Mini Kit (Geneaid) and amplified Cyt b using PCR method with CytbCapF and CytbCapR primers and was sequenced. The results showed that there were two specific amino acids that distinguish KG and EG goat with C. hircus and C. aegagrus and four specific amino acids that distinguish KG and EG goat with C. falconeri, but there were no specific amino acids can be used as a genetic marker to distinguish between Kacang and EG goat. In conclusion, specific amino acids in Cyt b gene can be used as a genetic marker among KG and EG goat with 3 goat others comparator.

2020 ◽  
Vol 13 (1) ◽  
pp. 96-103
Author(s):  
Dorothea Vera Megarani ◽  
Herjuno Ari Nugroho ◽  
Zahrah Prawita Andarini ◽  
Yura Dwi Risa B. R. Surbakti ◽  
Rini Widayanti

Aim: This study aimed to determine the genetic characterization and phylogenetic structure of Indonesian indigenous catfish using cytochrome B (Cyt B) sequences. Materials and Methods: The genomes of 26 catfishes caught from nine rivers from nine different geographical locations around Indonesia were analyzed. The tissue isolation method was used to isolate the total genome of the fishes. Furthermore, polymerase chain reaction was done to amplify the mtDNA Cyt B using the CytBF and CytBR primers. Following sequencing, the analysis of genetic variation and the phylogenetic relationship was performed using MEGA version X software. Results: Cyt B gene sequencing attained a total of 1139 nucleotides encrypting 379 amino acids for all samples. The ClustalW alignment program using MEGA X software revealed 395 substituted nucleotides, which then translated into 63 amino acid variation sites among all 26 samples. No amino acids in catfish BB were different compared to catfish PM, MP, and KR2,3. Catfish MS had one modified amino acid; KR1 and KS had two different amino acids; BF had 38 different amino acids; EM had 31 different amino acids; and BSBJ had 26 different amino acids compared to catfish BB. The most significant alteration of amino acids was between catfish EM and BF (49 amino acids). Conclusion: Indonesian catfish were divided into five clades based on the Cyt B gene. Samples KR and MP (Sumatra); MS and BB (Kalimantan); and PM (Java) were clustered with Hemibagrus nemurus and Hemibagrus wyckioides (Bagridae family). Samples from Kalimantan (KS) and one sample of KR (KR1) from Sumatra were clustered with Sperata seenghala and Hemibagrus spilopterus (Bagridae family). Samples from Java (BSBJ) were clustered with Pseudolais pleurotaenia (Pangasiidae family). Samples EM (Java) were together with Mystus cavasius (Bagridae family). Samples from West Papua were clustered with Potamosilurus latirostris (Ariidae family).


2016 ◽  
Vol 2 (2) ◽  
pp. 177-182
Author(s):  
Sirazum Munira ◽  
Fatema Tuz Jahura ◽  
Md Munir Hossain ◽  
Mohammad Shamsul Alam Bhuiyan

The study was conducted to adopt PCR based technique for identification of species origin from meat samples of cattle and buffalo using mitochondrial cytochrome b (Cyt b) gene fragment. A total of 42 ear tissue and meat samples were collected from different slaughterhouses and farms of Mymensingh, Bogra and Rangpur districts and stored in 96% ethanol at room temperature. Genomic DNA was extracted from all samples using GeNet Bio genomic DNA isolation kit. The average DNA yield of considered samples was found 204.57 ng/?l where the purity ranged from 1.82–1.99. Two (2) pair species-specific primers were used to amplify Cyt b gene fragments of 472 bp and 124 bp for cattle and buffalo, respectively. The PCR results revealed different species specific amplified fragments which could discriminate between cattle (472 bp) and buffalo (124 bp) species precisely from pure and mixed samples of those species. This study suggests an accurate molecular technique for identification of cattle and buffalo species meat origin and differentiates species present in adulterated meat samples. In conclusion, this DNA based technique could be utilized for prevention of malpractice in slaughterhouse and chain shops and thereby to protect consumer’s right.Asian J. Med. Biol. Res. June 2016, 2(2): 177-182


Genetics ◽  
1991 ◽  
Vol 127 (2) ◽  
pp. 335-343 ◽  
Author(s):  
P Bennoun ◽  
M Delosme ◽  
U Kück

Abstract We describe the genetic and molecular analysis of the first non-Mendelian mutants of Chlamydomonas reinhardtii resistant to myxothiazol, an inhibitor of the respiratory cytochrome bc1 complex. Using a set of seven oligonucleotide probes, restriction fragments containing the mitochondrial cytochrome b (cyt b) gene from C. reinhardtii were isolated from a mitochondrial DNA library. This gene is located adjacent to the gene for subunit 4 of the mitochondrial NADH-dehydrogenase (ND4), near one end of the 15.8-kb linear mitochondrial genome of C. reinhardtii. The algal cytochrome b apoprotein contains 381 amino-acid residues and exhibits a sequence similarity of about 59% with other plant cytochrome b proteins. The cyt b gene from four myxothiazol resistant mutants of C. reinhardtii was amplified for DNA sequence analysis. In comparison to the wild-type strain, all mutants contain an identical point mutation in the cyt b gene, leading to a change of a phenylalanine codon to a leucine codon at amino acid position 129 of the cytochrome b protein. Segregation analysis in tetrads from reciprocal crosses of mutants with wild type shows a strict uniparental inheritance of this mutation from the mating type minus parent (UP-). However, mitochondrial markers from both parents are recovered in vegetative diploids in variable proportions from one experiment to the next for a given cross. On the average, a strong bias is seen for markers inherited from the mating type minus parent.


2018 ◽  
Vol 10 (1) ◽  
pp. 6
Author(s):  
Roza Elvyra ◽  
Dedy Duryadi Solihin

The mitochondrial cytochrome b (cyt-b) gene as a phylogenetic marker of lais fish Kryptopterus schilbeides from Kampar River in Riau has been studied. This is a prelimininary research on the utility of cyt-b gene as a molecular marker to obtain species diversity and phylogenetic relationship among Kryptopterus fishes from Kampar River. The primers of L14841 and H15149 were used to amplify the cyt-b gene. The results showed that K. schilbeides has isoleusine at site-81 and metionine at site-114; K. schilbeides from Kampar River and K. schilbeides from GenBank form a phylogeny cluster at 45% value.


1990 ◽  
Vol 97 (3) ◽  
pp. 479-485
Author(s):  
J.R. Jara ◽  
J.H. Martinez-Liarte ◽  
F. Solano ◽  
R. Penafiel

The uptake of L-Tyr by B16/F10 malignant melanocytes in culture has been studied. These melanoma cells can either be depleted of amino acids by 1 h preincubation in Hanks' isotonic medium or preloaded with a specific amino acid by 1 h preincubation in the same solution containing 2 mM of the amino acid to be preloaded. By means of these pretreatments, it is shown that the rate of L-Tyr uptake is greatly dependent on the content of other amino acids inside the cells. The L-Tyr uptake is higher in cells preloaded with amino acids transported by the L and ASC systems than in cells depleted of amino acids or preloaded with amino acids transported by the A system. It is concluded that L-Tyr is mainly taken up by an exchange mechanism with other amino acids mediated by the L1 system, although the ASC system can also participate in the process. In agreement with that, the homo-exchange performed by cells preloaded with unlabelled L-Tyr is more efficient than any other hetero-exchange, although L-Dopa, the product of tyrosine hydroxylation in melanin synthesis, is almost as efficient as L-Tyr. Apart from aromatic amino acids, melanoma cells preloaded with L-Met and L-His also yield a high initial rate of L-Tyr uptake. The results herein suggest that melanoma cells do not have transport systems specific for L-Tyr, even if this amino acid is needed to carry out the differential pathway of this type of cells, melanosynthesis.


Blood ◽  
1987 ◽  
Vol 69 (1) ◽  
pp. 219-223 ◽  
Author(s):  
M Poncz ◽  
S Surrey ◽  
P LaRocco ◽  
MJ Weiss ◽  
EF Rappaport ◽  
...  

Abstract We report the isolation of a platelet factor 4 (PF4) cDNA clone from a lambda gt11 expression cDNA library which was derived from a human erythroleukemic (HEL) cell line. The sequence of the DNA insert includes the 3′-untranslated region, the entire amino acid coding region for the mature PF4 protein, and a 5′ region containing coding information for an additional 18 amino acids. In addition, supplemental genomic DNA sequencing shows that the full-length leader sequence is 30 amino acids long plus an initial methionine and codes for a hydrophobic signal-like sequence which is probably involved in transmembrane transport. A single species mRNA of approximately 800 nucleotides was detected on blots of HEL cell poly(A) + RNA using a labeled PF4 cDNA probe. The human PF4 leader sequence shares some DNA, but no amino acid, homology with the 15 amino acids at the N-terminus of mature bovine PF4, suggesting rapid divergence in this region of PF4 between these two species. Sequence comparison of the coding regions of mature PF4 and gamma IP-10, a protein induced in a variety of cells following treatment with gamma-interferon, shows a corrected divergence of 76%. The divergence of a common ancestor protein into PF4 and gamma IP-10 may have accompanied the development of sophisticated immune and coagulation systems in vertebrates. The availability of cDNA and genomic DNA information for these genes in other species will be useful in studying the evolution of the coagulation and immune systems.


Jurnal Kimia ◽  
2016 ◽  
Author(s):  
Dita Rizkiyanti ◽  
Ni Made Suaniti ◽  
Ketut Ratnayani

Seeds are a source of high protein when compared with other parts of the plant. Compared to soy bean, the use of winged bean seeds, tamarind seeds, moringa seeds as protein sources are still very limited. Protein composed of several amino acids bond together to form a polypeptide. Some amino acids have been investigated to act as stimulating insulin secretion, namely, arginine, alanine, phenylalanine, isoleucine, and lysine. The aim of this study was to determine the potential content of amino acids stimulating the secretion of insulin in winged bean seeds, tamarind seeds, and moringa seeds. Based on the total content of amino acids in each seeds, the results showed that moringa seeds have the highest levels of total amino acids stimulating insulin secretion (16.4%), followed by winged bean seeds (16.2%), and tamarind seeds (12.1%). But if seen by the levels of each amino acid, the winged bean seeds on average had the highest amino acid content. The highest levels of arginine, alanine, phenylalanine, isoleucine, and leucine were found in winged bean seeds, while only one specific amino acid i.e. lysine was found to be the highest level on moringa seeds. It can be concluded that the most potential seeds as a source of amino acids stimulating insulin was the winged bean seeds, that will be useful in the prevention or treatment of diabetes mellitus.


1950 ◽  
Vol 28c (1) ◽  
pp. 1-6 ◽  
Author(s):  
R. H. Wallace ◽  
A. G. Lochhead

A study was made of the more specific amino acid requirements of bacteria from the rhizospheres of clover, flax, and wheat plants for which a chemically defined medium containing 23 amino acids provided essentials for maximum growth. Of seven groups of amino acids, the sulphur-containing group (cysteine, methionine, and taurine) was found to be of special significance, the omission of this group resulting in a pronounced decrease in the percentage of organisms able to develop. Further study of organisms dependent upon this group of amino acids for growth showed methionine to be by far the most essential compound. While evident for bacteria from the rhizosphere of all three crops, the effect was more pronounced in the case of clover than with flax or wheat.


Author(s):  
RA Begum ◽  
MT Alam ◽  
H Jahan ◽  
MS Alam

Labeo calbasu (Family Cyprinidae) was studied at DNA level to know genetic diversity within and between species. The mitochondrial cytochrome b (cyt-b) gene of L. calbasu was sequenced and compared to the corresponding sequences of other Labeo species. DNA was isolated from the tissue sample of L. calbasu using phenol: chloroform extraction method. Forward and reverse primers were designed to amplify the target region of cytochrome b gene. A standard PCR protocol was used for the amplification of the desired region. Then, the forward and reverse sequences obtained were aligned and edited to finalize a length of 510 nucleotides which was submitted to NCBI genbank database. Nucleotide BLAST of this sequence at NCBI resulted 100% sequence similarity with L. calbasu sequence of the same region of cyt-b gene. Multiple sequence alignment of the sequence with seven more Labeo species sequences revealed 120 polymorphic sites, which have been mark of diversity among the species and might be used in molecular identification of the Labeo species. A constructed phylogenetic tree has shown relationship among the Labeo species. This research demonstrated the usefulness of mitochondrial DNA-based approach in species identification. Further, the data will provide appropriate background for studying genetic diversity within-species of the Labeo species in general and of L. calbasu in particular. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(1): 25-30


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