|
Links
|
Bases |
A - adenine
C - cytosine
G - guanine
T - thymine |
Three bases uniquely specify an amino acid (or a
STOP/START character). There are four possible bases in each of the
three positions for a total of 43 or 64 possible three base
combinations. |
|
Amino Acids |
Alanine
Arginine
Asparagine
Aspartic acid
Cysteine
Glutamic acid
Glutamine
Glycine
Histidine
Isoleucine |
Leucine
Lycine
Methionine
Phenylalanine
Proline
Serine
Thereonine
Tryptophan
Tyrosine
Valine |
The amino acids are used in protein synthesis.
|
| The translations I've shown below
are from the DNA base triplets directly to the 20 amino acids that make up
proteins. The situation is actually a little more complicated.
The messenger RNA (mRNA) reads (codes to) a part of a single strand of
DNA. This mRNA strand is the compliment of the DNA coding. A
three base strand of mRNA is called a codon. Transfer RNA (tRNA)
codes directly to the mRNA and to the amino acids. The tRNA triplet
is the complement of the mRNA codon. Thus, the tRNA
"guides" the amino acid to it's complement mRNA, which in turn
is the complement of the single strand of the DNA. |
| Alanine |
Arginine |
Asparagine |
Aspartic
acid |
Cysteine |
Glutamic
acid |
Glutamine |
GCA
GCC
GCG
GCT |
AGA
AGG
CGA
CGC
CGG
CGT |
AAC
AAT |
GAC
GAT |
TGC
TGT |
GAA
GAG |
CAA
CAG |
| Glycine |
Histidine |
Isoleucine |
Leucine |
Lycine |
Methionine
(START) |
Phenylalanine |
GGA
GGC
GGG
GGT |
CAC
CAT |
ATA
ATC
ATT |
CTA
CTC
CTG
CTT
TTA
TTG |
AAA
AAG |
ATG |
TTC
TTT |
| Proline |
Serine |
Thereonine |
Tryptophan |
Tyrosine |
Valine |
STOP |
CCA
CCC
CCG
CCT |
AGC
AGT
TCA
TCC
TCG
TCT |
ACA
ACC
ACG
ACT |
TGG |
TAC
TAT |
GTA
GTC
GTG
GTT |
TAA
TAG
TGA |
| Base
Triplets |
Amino
Acid |
Base
Triplets |
Amino
Acid |
| AAA |
Lycine |
GAA |
Glutamic acid |
| AAC |
Asparagine |
GAC |
Aspartic acid |
| AAG |
Lycine |
GAG |
Glutamic acid |
| AAT |
Asparagine |
GAT |
Aspartic acid |
| ACA |
Thereonine |
GCA |
Alanine |
| ACC |
GCC |
| ACG |
GCG |
| ACT |
GCT |
| AGA |
Arginine |
GGA |
Glycine |
| AGC |
Serine |
GGC |
| AGG |
Arginine |
GGG |
| AGT |
Serine |
GGT |
| ATA |
Isoleucine |
GTA |
Valine |
| ATC |
Isoleucine |
GTC |
| ATG |
Methionine (START) |
GTG |
| ATT |
Isoleucine |
GTT |
| CAA |
Glutamine |
TAA |
STOP |
| CAC |
Histidine |
TAC |
Tyrosine |
| CAG |
Glutamine |
TAG |
STOP |
| CAT |
Histidine |
TAT |
Tyrosine |
| CCA |
Proline |
TCA |
Serine |
| CCC |
TCC |
| CCG |
TCG |
| CCT |
TCT |
| CGA |
Arginine |
TGA |
STOP |
| CGC |
TGC |
Cysteine |
| CGG |
TGG |
Tryptophan |
| CGT |
TGT |
Cysteine |
| CTA |
Leucine |
TTA |
Leucine |
| CTC |
TTC |
Phenylalanine |
| CTG |
TTG |
Leucine |
| CTT |
TTT |
Phenylalanine |
Links:
| Note: These links are rather technical in nature, intended
primarily for physicians and genetic researchers. |
| OMIM |
Online Mendelian Inheritance in Man. This database is a catalog of
human genes and genetic disorders authored and edited by Dr. Victor A.
McKusick and his colleagues at Johns Hopkins and elsewhere, and developed
for the World Wide Web by NCBI, the National Center for Biotechnology
Information. |
| Genetics
Databases |
From the Center for Disease Control Office of Genetics and Disease
Prevention. |
| GeneCards |
GeneCards is a database of human genes, their products and their
involvement in diseases. Developed at the Crown Human Genome Center
& Bioinformatics Unit, at the Weizmann Institute of Science. |
| The Genome Database |
The Genome Database (GDB) is the official central repository for genomic
mapping data resulting from the Human Genome Initiative. |
| Other Science Features |
|
|
| Premier-Net.com Features |
|
|
