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BIOINFORMATICS (BLAST ? (WHAT IS BLAST (IDENTIFY OF NUCLEOTIDES, BASED ON…
BIOINFORMATICS
BLAST
?
ABBREVIATION FOR BASIC LOCAL ALIGTMENT SEARCH TOOL
PRINCIPLE
COMPUTER COMPARISONS USING MATHEMATICAL (ALGORITM)
FIND BEST
MATCHING PAIR COMPARISON OF SEQUENCES
TYPE OF BLAST
PROTEIN BLAST
NUCLEOTIDE BLAST
WHAT IS BLAST
BASED ON SIMILARITY THE CHARACTERISTIC
FIND A MATCH SEQUENCE
IDENTIFY OF NUCLEOTIDES
ALIGNMENT MADE BETWEEN DNA-DNA SEQUENCE / AMINO ACEDS- AMINO ACID SEQUENCES
PROTEIN- PROTEIN MARK AT (X)
SIMILARITY ( " : " )
MATCH
A TOOL FOR SEARCHING GENE / PROTEIN SEQUENCE
SEQUENCE ANALYSIS
1) DETERMINE CORRECT SEQUENCE OF DNA
2) COMPARE SEQUENCE WITH KNOWN SEQUENCES (USING BLAST)
3) TRANSLATE DNA INTO PROTEIN SEQUENCE (USAGE OPEN READING FRAME / ORF)
4) UNDERSTAND PROTEIN FUNCTION IN CONNECT
HOW TO USE BLAST?
DNA SEQUENCES OBTAINED -SAVED RESULT IN FASTA -FORMAT
CREATE USING WORDPAD (NOTE PAD) SAVED AS TEXT -ALLES -txt
NUCLEOTIDES / AMINO ACID REPRESENTED AS SINGLE LETTER CODES
DESCRIPTION LINE ALWAYS START WITH
'>'
WORD FOLLOWING '>' IS SEQUENCE ID WITHOUT SPACE BETWEEN THEM
NO SPACE BETWEEN NUCLEOTIDES / AMINO ACIDS
NATIONAL CENTRE FOR BIOTECHNOLOGY INFORMATION
A PLATFORM SERVES AS BIOLOGICAL DATABASE (US) DATABASE (UK)...
ABREVIATED AS dB
FOUNDED IN 1988
LOCATED : BETHESDA, MARYLAND
tBLASTn
protein ----> translated nucleotide
blast x
translated nucleotide ----> protein