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The third section of the results page contains the actual alignments, listed in the same order as the graphed results and the scores.

In the first alignment, what is the ratio of identical bases to total bases in the aligned subsequence?

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What is the listed percent identity?

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What is the E- (Expect) value?

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Look for entry with the accession code BC005255.1 at the beginning of the alignment and click on the accession link. Note that this "hit" is a cDNA, or a DNA sequence that has been copied from anmRNA molecule by the enzyme reverse transcriptase. This is indicated in the description, but whenever the source of the sequenceis unclear, click the link for the GI number and view the GenBank entry for more information. Look under the "COMMENT" section foradditional details about this sequence.

What group was responsible for the DNA sequencing for this entry?

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Return to the BLAST alignment results page. Scroll down to view the actual sequence alignments. The alignments are represented with vertical lines illustrating identicalmatches, blanks indicate no match. In these nucleotide alignments, there is no measurement for similarity between non-identical nucleotides. In protein alignments, however, chemical or structural similarity isusually identified between the amino acids.

Return to the BLAST home page , and select the blastx "translated nucleotide sequence query". Cut and paste the same nucleotide sequence used in theprevious example into the "Search" box. The default translation tool is BLASTX, which translates the query sequence into a protein sequence and searches a protein database. To search a translatednucleotide database with a protein query, the TBLASTN algorithm should be selected. To search a translated nucleotide database with a translated nucleotide sequence, the choice would be TBLASTX. TBLASTXis the most computationally intensive of these three searches, therefore common practice is to use BLASTX first to search protein sequence databases, and then if there are no hits withBLASTX, consider TBLASTX to translate nucleotide sequence database entries into protein sequences. For this example, use the translation algorithm BLASTX. Use the nr database and leave the default values for all other BLAST options, and hit BLAST.View the results page.

What protein is listed in the vast majority of the returned matches?

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Look at the first alignment, which should have 100% identitybetween the aligned subsequences. Note that a particular alignment may have more than one sequence associated with it. Therefore, you must look at the actual alignments, not the list of scores, to answer the following questions.

Why is the score lower for the BLASTX result than for the BLASTN result, even though the percent identity between aligned subsequences is 100%?

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How many different species are listed as sources where the aligned subsequence has an identical amino acid to total amino acid ratio of86/86, and 100% identity?

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Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Bios 533 bioinformatics. OpenStax CNX. Sep 24, 2008 Download for free at http://cnx.org/content/col10152/1.16
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