Explain Homology modelling?

Answer Posted / anubrata das

if the crystal structure of any protein is unavailable,
then one can use the tools of homology modelling to
determine the structure. the logic is that a similar
structure arises becuse of a similar sequence of amino
acids. for homology modelling to be accurate an identity
match of 70% is desirable.basically, one does a FASTA
search of A.A sequences in the PDB database (A.A sequences
whose structures are known), does a CLUSTAL alignment to
check for conserved residues. then the structure of the
unknown A.A sequence is built up on the basis of the
structure of the best matches in FASTA and CLUSTAL by
programs like LLOOP and HHPRED. this structure can be
visualized in programs like DEEPVIEW,Protein Explorer
etc.the EXPASY proteomics server is a good site to begin
with - http://swissmodel.expasy.org/

Is This Answer Correct ?    8 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How the Algorithm works?

1519


How do ESTs work?

1514


A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?

1724


How to find flanking region ?

1962


How a cluster algorithm works?

1584






Describe the aim of microarray data analysis?

1967


Did bacteria, archaea, and eukaryotes exchange transporter genes appreciably during the past two billion years?

658


what is the image of point (3,8) in the line x + 3y = 7 ?

1814


How to find coexpressed genes on NCBI GEO?

1673


What is C-compliator?

1811


Does multidrug resistance (mdr) arise by activation of stable genes encoding drug efflux pumps or by mutations of genes encoding other types of transporters in bacterial pathogens?

641


How to identify common acc.numbers from among a set of files ?

2333


can u give me an example of a project you were involved with that illustrates your interest and skills in bringing people together?

1605


What is computational biology?

567


What is a DNA array?

1695