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Table 1 Copy number and genomic organization of core histone genes

From: Core histone genes of Giardia intestinalis: genomic organization, promoter structure, and expression

  

Chromosome2

 

Poly(A)

 

Conserved sequences5

Histone

ORF ID1

#

Position

Dir.

 

Sequence3

STOP4

 

Upstream

Coding

Downstream

H4-i

135001

5

0.6

R

 

AGTAAAC

-5 bp

 

99 bp

300 bp

124 bp

H4-ii

135002

5

0.6

F

       

H4-iii

135003

5

0.6

R

       

H3-i

135231

4

0.2

R

 

AG TAA AC

overlap

 

50 bp

441 bp

5 bp

H3-ii

14212

4

0.7

R

       

H2a-i

27521

3

0.15

F

 

TGTAAAC

-10 bp

 

80 bp (-2)

375 bp (-7)

12 bp (-1)

H2a-ii

14256

5

0.6

R

 

TGTGAAC

-20 bp

    

H2b-i

121046

5

1.2

R

 

AG TAA AT

overlap

 

56 bp

393 bp

16 bp

H2b-ii

121045

5

1.2

R

       
  1. 1 ORF ID as assigned for each gene on Giardia DB [3].
  2. 2 The chromosome position indicates the distance in Mb from the end of the map for that chromosome. The distance from the telomere is greater, since the map does not extend all the way to the telomeres.
  3. 3 Sequence matching the consensus polyadenylation signal for Giardia genes (Reviewed in [15]); the DNA sequence for the stop codon is underlined in the polyadenylation sequence shown for the H2B and H3 genes since these sequences overlap for these two genes.
  4. 4 Location of putative polyadenylation signal relative to the translation stop codon of each gene.
  5. 5 Coding and non-coding sequences conserved among all copies of each core histone gene; number of nucleotide mismatches are indicated in brackets.
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BMC Molecular Biology

ISSN: 1471-2199

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