tRNA & aminoacyl-tRNA synthetase table | taaRSAt home page


tRNAVal (cytosolic and mitochondrial [imported])

(aminoacylated by ValRS)

Codons and anticodons
codons read by: codon usage (codons/1000)
cytosol mitochondria
GUA anticodons IAC, UAC 10.1 14.3
GUC anticodon IAC 12.7 12.2
GUG anticodon CAC 17.5 12.0
GUU anticodon IAC 27.3 18.5

Codon usage statistics are from the Codon Usage Database at the Kazusa DNA Research Institute.

In the sequences below, several regions of interest have been marked, including the low stability regions (TATA-like sequences) in the 5'-flanks thought to be important for high transcriptional activity, the CAA triplets thought to indicate the region of transcription initiation and the poly(T) stretches thought to act as transcription terminators. Bases which vary between isoacceptors are highlighted, as are anticodons.


Anticodon AAC, probably modified to IAC

5' flanks
Val(AAC)_1 Val(AAC)_2
CAAGTCAATAATAGTTAAAATCAATGATTAACGGACGTGTAACAACAAAA
Val(AAC)_3
ATTTCTAATTTAGGTTTAAGTATTTTGTAATGTTATCTATGTTCAGACAA
Val(AAC)_4
TTTGTTTTCGCTAAGGATAAAAAAAACTTAACAAATGTTACAAGCAAAAA
Val(AAC)_5
CCTTTAGTAATAATAGATAAATAGTTCAAATTTGGACTAGAGTGCACAAA
Val(AAC)_6
CAGTTATCTATATGTATATATATATTGTTGAGGTTAGAAAGAAGCATGTA
Val(AAC)_7
GATCAGTAAGGAAGATAGAATATGTTAAACCAACATCAAGAAGACAAAAA
Val(AAC)_8
AATATTATAGCTACTCAATAACATGTTATATTTTTGATGTTACATGCAAA
Val(AAC)_9
             A
           G-C
           G-C
           T*G
           T-A
           T-A
           C-G
           G-C     CA
  TGA     T   GGGCC  A
 T   TGTGG    *||||  G
 G    |||     TCCGG  C
 G   TCAC     C    TT
  TTA    G   A T
          T-A GG
          C-G  
          A-T   
          G-C    
          T-A     
         C   C     
         T   A      
          AAC        

3' flanks
Val(AAC)_1 Val(AAC)_2
TTTCTTCTTTTAATTTTTTTTTTTT
Val(AAC)_3
TATCTTTCGTTTTTTATCTTATATT
Val(AAC)_4
ATAACATATGTTTTTGTTTTGTCAG
Val(AAC)_5
AATTTATTTTTCGTTTTTTAATTTG
Val(AAC)_6
TTATTTTGACATATTTTTACCTTGG
Val(AAC)_7
GTTAATTGCTTTTTATTTCATTTTT
Val(AAC)_8
TTGTCAATACTTTTATTTTAACGTA
Val(AAC)_9

Observations:

none

Putative pseudogenes:

Val(AAC)_10

Anticodon CAC

5' flanks
Val(CAC)_1 Val(CAC)_9
TCTATTGTATATTAGGAAATATACATTAATCTGAACCTATGATCAACAAT
Val(CAC)_2
ACTAGATTATTTAAGTATATTTATAATAAAGTAAAGAGTCTAACAAAAAC
Val(CAC)_3
TTGTTAAATGACCGAATCAATATACTTCTCTTGTTAAACTAAGTATCAAA
Val(CAC)_4
ATTTTGTTAAGCTTCCTTATTAAATACAAACTTAATTGAATTAATAAAAA
Val(CAC)_5
TACAAAATAATCATATAAAGGAAAAAATAATACACAATATACCCATCAAA
Val(CAC)_6
AATCCGTAACTTTGGCAATATAAATAAGCTTCTCAAATTATTAACAAATC
Val(CAC)_7
AAGAGAGTTTTTTCTTGGACATATATAATTAACATTCAATGGACATTAAC
             A
           G-C
           T-A
           C-G
           T-A
           G-C
           G*T
           G-C     CA
  TGA     T   GGGCC  A
 C   TGTGG    |||||  G
 G    |||     CCCGG  C
 G   TCAC     C    TT
  TTA    G   A T
          C-G GG
          T-A  
          A-T   
          G-C    
          T-A     
         C   C     
         T   A      
          CAC        

3' flanks
Val(CAC)_1 Val(CAC)_9
TAATTTTTTTATTTTTATTTTTTAT
Val(CAC)_2
TGCTTTTTTTTTTGCAACACATAAT
Val(CAC)_3
TATCTACTTAATATAATTCCTTTCT
Val(CAC)_4
TTTTTTTACTCTTTTTTTTGGGATT
Val(CAC)_5
TATCTAAAATATCTGGAGATGTATG
Val(CAC)_6
ATTTTTTGTCACTTTTTTAAGAAGC
Val(CAC)_7
TTTTTTTCTCCTTCATATTTACGTT

Observations:

none

Variants:

Val(CAC)_7
G9->A


Anticodon UAC

5' flanks
Val(TAC)_1
ATGCTTTAGTTTGAAAGTTAAATATTAAACGAGAGAATAAGGAGACATCA
Val(TAC)_2
TTCTGTATTCTAAACTTTATATAGAATTAAATGATAATCTTGAACAGCAA
Val(TAC)_3
TATGATTAAGTAAGTGATTAGAAAAGATAACATTATAATCTCAACATCAA
Val(TAC)_4
CAATATCCATGAATGAGTCTATAAAAACAAAAATCACAACTCAATCATCA
Val(TAC)_6
TGTTTAATATACATAGAGTTAAATTGTACTAAAGTTACCAATTTGTTGAA
             A
           G-C
           G-C
           T-A
           G-C
           C-G
           T-A
           G-C     CT
  TGA     T   GGGTC  A
 G   TGTGG    *||||  G
 G    |||     TCCAG  C
  T  TCAC     C    TT
   TA    G   A T
          T-A GG
          T-A  
          T-A   
          G-C    
          C-G     
         C   C     
         T   A      
          TAC        

3' flanks
Val(TAC)_1
GTTTTTTGTAATTAGGATTGATTGA
Val(TAC)_2
TCTTTTTCCTCTTTTTTTTTTTTGC
Val(TAC)_3
TATTTTTTTATACCTATTCCCCTCT
Val(TAC)_4
AACCATAGACAATTTTATAAATTTT
Val(TAC)_6
GTTTTTTCATATAATGCTAACTCCT

Observations:

none

Variants:

Val(TAC)_4
T59->C
Val(TAC)_6
G2->A  G4->T  C69->A  C71->T


References

Gokhman I, et al.
Nucleotide sequence of tRNAVal(GUU) from Arabidopsis thaliana.
Nucleic Acids Res. 1990 Nov 25;18(22):6729.


tRNA & aminoacyl-tRNA synthetase table | taaRSAt home page

Last updated December 12, 1999; Ian Small