Review Article

Copy Number Variants in Obesity-Related Syndromes: Review and Perspectives on Novel Molecular Approaches

Table 2

CNVs in the DECIPHER database likely to play a role in obesity.

ChrGenomic rearrangementsaPhenotype(s)DECIPHER
ID

Chr1
arr 1q12q21.1(141,959,285-147,024,032)x3-inherited (overlap the TAR syndrome and 1q21.1 recurrent microdeletion/microduplication locus)high birth weight (>90th centile)
and 5 other phenotypes
265628
arr 1q31.1q31.2(187,292,321-191,478,235)x3 dnobesity, general abnormalities, and 7 other phenotypes3463

Chr2
arr 2p25.3(53,452-3,194,600)x1 dnobesity, generalized abnormalities, and 7 other phenotypes258576
arr 2p24.1p23.3(23,826,350-24,923,855)x1-inheritedgeneralized obesity and 4 other phenotypes255430
arr 2q31.1(170,471,086-175,231,429)x1 dngeneralized obesity and 19 other phenotypes250211

Chr3arr 3p26.3(768,376-2,367,266)x1 dntruncal obesity and 5 other phenotypes 249965
arr 3q13.2-q13.31(113,681,019-116,466,222)x1 dntruncal obesity and 3 other phenotypes4673
arr 3q13.31q21.2(116,885,009-125,066,880)x1 dntruncal obesity and 5 other phenotypes251079

Chr4arr 4q21.21q21.23(82,301,439-85,425,757)x1 dnhigh birth weight (>90th centile) and 17 other phenotypes4539

Chr5arr 5p15.2p14.1(12,337,356-27,024,241)x1 dnobesity, general abnormalities, and 3 other phenotypes250008
arr 5p13.2p13.1(35,624,846-39,364,263)x3 dngeneralized obesity and 26 other phenotypes
255925
arr 5q14.3q15(90,230,044-94,799,167)x1 dntruncal obesity and 8 other phenotypes248692
arr 5q23.1q23.2(116,801,735-124,680,789)x1 dntruncal obesity and 3 other
phenotypes
261304

Chr6arr 6q14.1q15(79,381,580-88,100,133)x1 dn obesity, general abnormalities, and 18 other phenotypes1878

Chr7arr 7q11.23(72,364,514-73,777,326)x3 dn (overlap WBS locus; GTF2I) generalized obesity and 17 other phenotypes255467
arr 7q22.1q22.2(102,145,556-105,274,891)x1 dn obesity, general abnormalities,
and 2 other phenotypes
625
arr 7q22.1q22.3(103,887,195-106,790,044)x1 dn high birth weight (>90th centile) and 6 other phenotypes4470

Chr8arr 8p23.1(6,986,631-12,285,366)x3 dn
(overlap 8p23.1 deletion/duplication syndrome; SOX7, CLDN23)
generalized obesity and 9 other phenotypes255954
arr 8q12.1(58,181,408-59,144,674)x1 dngeneralized obesity and 4 other phenotypes260283

Chr9arr 9q21.11(70,791,222-71,030,800)x3-inheritedgeneralized obesity and 2 other phenotypes251354
arr 9q22.32q22.33(96,375,866-101,058,940)x1 dnhigh birth weight (>90th centile)
and 11other phenotypes
1002
arr 9q33.3q34.11(128,990,000-130,220,000)x1 dngeneralized obesity and 4 other phenotypes259586

Chr12arr 12q13.12q13.13(51,293,317-54,455,978)x3 dn truncal obesity and 12 other phenotypes248785
arr 12q21.1q25(68,841,926-71,439,458)x1 dnobesity, general abnormalities,
and 10 other phenotypes
258580/258581
arr 12q21.32q23.1(87,208,712-99,988,990)x3 dnobesity, general abnormalities,
and 12 other phenotypes
258582

Chr13arr 13q13.3q14.11(38,442,447-41,548,237)x1 dn high birth weight (>90th centile) and 23 other phenotypes1304
arr 13q32.3q32.3(100,431,907-100,838,153)x1 dntruncal obesity and 6 other phenotypes2130

Chr14arr 14q11.2(20,314,536-21,320,719)x3 dnobesity, general abnormalities, and 15 other phenotypes258583
arr 14q23.1(56,291,177-57,664,121)x1 dngeneralized obesity and 8 other phenotypes255207

Chr15arr 15q14q15.3(39,072,646-43,613,803)x1 dntruncal obesity and 5 other phenotypes1392
arr 15q26.2q26.3(95,128,043-100,168,718)x1 dn (overlap 15q26 overgrowth syndrome)truncal obesity and 3 other phenotypes2502

Chr16arr 16p13.11(14,993,254-16,189,808)x3 dn (overlap 16p13.1 1 deletion and duplication syndrome; MYH11)generalized obesity and 10 other phenotypes2370
arr 16q12.1q21(49,499,378-57,740,601)x3 dngeneralized obesity and 9 other phenotypes248877
arr 16q24.2q24.3(85,897,636-87,862,929)x1 dngeneralized obesity and 8 other phenotypes255327

Chr17arr 17p13.2(5,537,212-6,197,315)x1-inheritedgeneralized obesity and 8 other phenotypes254050
arr 17p13.1(6,896,836-7,157,572)x3 dngeneralized obesity and 5 other phenotypes258588
arr 17p13.1(6,920,991-7,767,844)x3 dngeneralized obesity and 10 other phenotypes262186
arr 17p13.1(6,972,362-7,490,406)x3 dngeneralized obesity and 24 other phenotypes256668
arr 17q11.2(26,085,851-27,391,269)x3 dn (overlap NF1 deletion syndrome)generalized obesity and 4 other phenotypes256904
arr 17q21.31(41,288,423-41,528,254)x3 dn (overlap 17q21.31 deletion/duplication; MAPT)high birth weight (>90th centile) and 7 other phenotypes 249014

Chr19arr 19p13.12(14,243,780-15,353,848)x1 dngeneralized obesity and 15 other phenotypes255743
arr 19q13.43(58,605,464-59,010,255)x1 dngeneralized obesity and 7 other phenotypes2590

Chr20arr 20p13(17,408-1,810,420)x3 dntruncal obesity and 22 other phenotypes250961
arr 20p12.1(14,556,853-14,704,918)x1 dnobesity, general abnormalities, and 4 other phenotypes249098

Chr22
arr 22q11.21(20,129,773-21,984,237)x1 dn (overlap DG/VCFS, and 22q11.2 distal deletion syndrome) truncal obesity and 6 other phenotypes248709
arr 22q11.21q11.22(20,247,200-21,293,000)x1 dn (overlap 22q11.2 distal deletion syndrome; BCR, MAPK1)obesity, general abnormalities, and 4 other phenotypes250888

ChrXarr Xp22.13p22.12(18,123,941-19,743,555)x1 dnobesity, general abnormalities and 6 other phenotypes258585
arr Xp11.4p11.3(42,241,552-43,449,256)x1-inheritedgeneralized obesity and 3 other phenotypes258161
arr Xp11.23(48,639,178-48,956,107)x1 dn (overlap Xp11.22p11.23 microduplication)obesity, general abnormalities,
and 4 other phenotypes
254343
arr Xq22.11q22.3(101,252,518-105,733,692)x1 dn (overlap Pelizaeus-Merzbacher disease)high birth weight (>90th centile), and 21 other phenotypes257182
arr Xq27.2(140,225,865-140,521,032)x1 dngeneralized obesity and 2 other phenotypes250330
arr Xq27.3q28 (144,934,242-148,461,832)x1 dnobesity, general abnormalities,
and 10 other phenotypes
250246
arr Xq27.3q28(145,354,647-148,617,309)x1 dngeneralized obesity and 2 other phenotypes265618

All coordinates are according to build36. Chr.: chromosome; ID: identification; TAR: Thrombocytopenia with absent radius; WBS: Williams-Beuren syndrome.
aAfter excluding CNVs within known genomic disorder regions associated with obesity, CNVs inherited from phenotypically normal parents or with inheritance status unknown, and cases in DECIPHER with more than one variants reported.