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cladonia · 21-05-2020, 15:57

Hi Guys,

I am complete nube at genetics and bioinformatics.

Can some one please tell me.... if we analyse and determine the protein sequence of an enzyme produced by a given strain, and we then use that to determine the gene sequence from the organism that produced it?

I thought the mature peptide or amino acid sequence of the enzyme would be different to the amino acid sequence of the gene - or is that stupid?

Thanks guys

**Tree** · 21-05-2020, 19:34

Many amino acids have more than one codon that codes for them (redundancy, woo!), so you can't properly predict a (D|R)NA sequence from an amino acid sequence. I mean, you could have a stab at it... but you'd also be missing any introns that might get excised too.

A given (D|R)NA sequence will have a single amino acid string as its output (with appropriate intron handling, etc).

21-05-2020, 15:57	#1
cladonia Registered User Join Date: Nov 2015 Posts: 6 Adverts \| Friends	Protein sequencing Hi Guys, I am complete nube at genetics and bioinformatics. Can some one please tell me.... if we analyse and determine the protein sequence of an enzyme produced by a given strain, and we then use that to determine the gene sequence from the organism that produced it? I thought the mature peptide or amino acid sequence of the enzyme would be different to the amino acid sequence of the gene - or is that stupid? Thanks guys

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21-05-2020, 19:34	#2
Tree Moderator Join Date: Jul 2003 Posts: 4,065 Adverts \| Friends Mod: Biology, ZTest	Many amino acids have more than one codon that codes for them (redundancy, woo!), so you can't properly predict a (D\|R)NA sequence from an amino acid sequence. I mean, you could have a stab at it... but you'd also be missing any introns that might get excised too. A given (D\|R)NA sequence will have a single amino acid string as its output (with appropriate intron handling, etc).