Table 2

Number of main haplotypes observed within genes compared to the number of possible haplotypes and yin yang haplotype distribution

Gene
Chromosome location
No. of SNPs
Kb spanned
SNP density (kb/SNP)
Observed No. of haplotypesa
Expected No. of haplotypes
Yin Yang haplotypesb

ApoE
19q13.2
4
3
0.75
6
16
GATC, CGTC
COL1A1
17q21.3-q22
3
16
5.33
4
8
GGG, GTG
ER-α
6q25.1
7
291
41.57
20
128
TCGCGGG, CTGCGGG
LEPR
1p31.2
3
66
22
7
8
GCG, GGA
PTHR1
3p22-p21.1
4
9
2.25
7
16
GTAA, ACGC
TGF-β1
19q13.1
3
22
7.33
4
8
C+C, T+C-
UCP3
11q13.4
3
5
1.67
4
8
TCT, CTC
VDR
12q12-14
4
39
9.75
12
16
GTGT, GTAC

a: Only haplotypes with frequencies more than 1% were included [14] b: For the PTHR1 and UCP3, Yin yang haplotypes were presented. For the other six genes, the two most common haplotypes were presented. The haplotypes were reconstructed based on the SNPs in the order from 5' to 3' on the chromosome within each gene.

Long et al. BMC Genetics 2004 5:11   doi:10.1186/1471-2156-5-11