Nov 29 2009

What we’ve learned in Bioinformatics

Published by under Uncategorized

Topics, Concepts & Skills:

Overall
An idea of the scope and limitations of bioinformatics.
An ability to blog/make a website, create links and imbed images/videos.

Muscular dystrophy
History of muscular dystrophy and related diseases.
Understanding of role of cytogenetics and bioinformatics in identifying the Dystrophin. This includes chromosome banding/ideograms. Cellular role of Dystrophin in relation other proteins that cause DMD and other dystrophies, including LGMD. Relation of severity of genetic defect to disease phenotypes. Other assays used in studying muscular dystrophies.
Use of OMIM to learn about locations and functions of various components of the Dystroglyan Complex.
Experience with PDB files of protein structures.

The Human Genome Project and DNA sequencing
Understanding of the process of Genome Sequencing and Annotation, including new developments that have accelerated sequencing.  Topics studied include base calling/issues with sequence quality and coverage, assembly of BAC clones into a Contig, finishing, annotation.

Appreciation of the historical significance of the Human Genome Project and the international collaborative nature of the project. Role of Hierarchical vs. Whole-genome sequencing in the final project. Read and wrote about the beginning sections of the HGP’s 2001 Nature Paper.

Touched upon or used PHRED, PHRAP, Sequencher.

Familiarity with the work of Craig Venter on the Human Genome Project and the JCVI’s recent research directions, including the Global Ocean Sampling Expedition, Marine Microbe Genome Sequencing Project, Synthetic Biology for microbes and vaccines, identification of entire new families of protein domains.

Gene Detection and Genome Annotation
Hands on experience with Gene Calling and Annotation (finding related genes), using the bacteriophage Eagle genome.

Dot plots and the role of visual analysis in understanding genomes.

Differences in prokaryotic vs. eukaryotic genes and the effect of those differences on Gene Detection. Methods used in gene annotation.

HIV Project
Read and understand primary literature. Explained a primary paper in a journal club format.
Developed and explored a unique bioinformatics question using original data from the HIV paper.
Some experience with new software, its power, and its limitations. The software includes Biology Workbench, Biology Student Workbench, SWAMI, ClustalW, and in one case MEGA4. Other tools used include Align, Grol4, MView, MEME.
Built phylogenic trees. Learned that file formats can make or break you.
Presented unique project in a class presentation and as a paper.

Multiple Alignments and Phylogenic Trees
Learned about different types of trees, their parts and what they can tell you. Touched upon how to pick the correct sequence to use in making a tree (synteny & orhtologs), theoretical approaches, synonymous and non-synonymous sites. Using fast-mutating vs. highly conserved sequences.

SMS Project
Met a graduate student author of a bioinformatics paper. Learned about the complex disease Smith-Magenis Syndrome.
Learned about clinical features of SMS and diagnostic methods related to bioinformatics. Journal Club of an original paper using the array comparative genomic hybridization technique. Analysis/critique of results and data presentation.

Original Project using data from SMS paper or RAI1 gene sequences. Presented in paper format.

Genome structure: repeats, SNPs, CNVs.

No responses yet

Nov 01 2009

concerted evolution

Published by under Uncategorized

When I googled ‘how the h*** did transfer RNA evolve’, I got this paper instead. It tackles concerted evolution of rRNA encoding genes, which is important for phylogenomics.

No responses yet

Oct 25 2009

About SWAMI

Published by under Uncategorized

SWAMI

No responses yet

Oct 07 2009

Some interesting & useful links

Published by under Uncategorized

About the ALIVE study. Seminal HIV-Injection Drug User Study Marks 20th Anniversary

Refuting Duesberg and other unqualified (not scientifically trained) dissenters:

AVERT an international AIDS charity

Does HIV cause AIDS? An updated response to Duesberg’s theories. Kurth R.  Intervirology. 1990;31(6):301-14.

One response so far

Oct 06 2009

HXB2 reference sequence for primer numbering

Published by under Uncategorized

HXB2

MEGA software  (an older version of this software was used for the HIV paper) See ref. 30, you should be able to downlaod that paper. (This part of the entry is mostly for Tom).

Kumar lab

No responses yet

Aug 25 2009

Informatics Assignment 8/25

Published by under informatics

A. No lab activities today, except that I worked on the course website from 10 AM till 1 PM, 8-25-9

B. Read and explored the websites for class at 1 PM 8-25-9

1) Learned new.  On http://www.ncbi.nlm.nih.gov/ Entrez is pronounced ahn’ tray. The databases are very highly integrated, more than just a few years ago.

Some of the information on http://www.ncbi.nlm.nih.gov/Education/ seems to repeat from the above site. For example, there is a set of written instructions for blast on the above site. The Education site links to the same site. It seems to me that many of these tool existed before the tutorials so it is nice to finally see some instructions. We should use these in class.

2) Not clear whether the stuff on these pages will result in information overload.

3) Next time I’m going to see if this post gets pulled into the informatics site. (waiting for site maintenance by admin)

No responses yet

Aug 25 2009

What my students are working on:

Published by under Uncategorized

Making movies, sax-7, hmr-1, hmp-1

No responses yet