Table 10.

Lynch Syndrome: Notable Pathogenic Variants by Gene

Gene 1Reference SequencesDNA Nucleotide ChangePredicted Protein ChangeComment / Population 2
EPCAM NM_002354​.2 c.859-1462_*1999del4909
(del exons 8-9)
--Netherlands
c.858+2478_*4507del8674
(del exons 8-9)
--
c.858+2568_*4596del8673
(del exons 8-9)
--Spain
c.858+2488_*7469del11626
(del exons 8-9)
--
c.859-1860_*25547del
(EPCAM del exons 8-9 & MSH2 del exons 1-3)
--
c.859–1430_*2033del
(del exons 8-9)
--Italy
MLH1 NM_000249​.3
NP_000240​.1
c.1731+2247_1897-402del
(del exon 16)
p.Pro579_Glu633delFinland
NM_000249​.3 c.454-1G>A--
NM_000249​.3
NP_000240​.1
c.112A>Cp.Asn38HisNetherlands
NM_000249​.3 c.306+5G>A--Spain; variants are assoc w/moderate penetrance.
NM_000249​.3
NP_000240​.1
c.1865T>Ap.Leu622His
NM_000249​.3 c.1896+280_*8935del11626
(MLH1 del exons 17-19 & LRRFIP2 del exons 26-29)
--Portugal
c.545+3A>G--Italy, Canada-Quebec (persons of Italian ancestry) & Brazil
c.589-2A>G--United States & Italy
NM_000249​.3
NP_000240​.1
c.731G>Ap.Gly244AspItaly
NM_000249​.3 c.1558+1G>T--
NM_000249​.3
NP_000240​.1
c.2252_2253delAAp.Lys751SerfsTer3
c.2269dupTp.(*757LeuextTer33)
c.1731G>Ap.Ser556ArgfsTer14
c.1489dupCp.Arg497ProfsTer6Germany
NM_000249​.3 c.1667+2_1667+8delTAAATCAinsATTTDenmark
NM_000249​.3
NP_000240​.1
c.2142G>Ap.Trp714TerSwitzerland
c.2195_2198dupAACAp.His733GlnfsTer14Canada-Quebec
c.1831_1832delATp.Ile611CysfsTer2
c.1039-2329_1409+827del3527p.Thr347LysfsTer8
c.1381A>Tp.Lys461TerUnited States
c.2044_2045delATp.Met682ValfsTer11Puerto Rico
c.392C>Gp.Ser131TerRepublic of Macedonia
NM_000249​.3 1.8-kb deletion of exon 11--China
NM_000249​.3
NP_000240​.1
c.793C>Tp.Arg265CysTaiwan
c.1758dupCp.Met587HisfsTer6Korea
MSH2 NM_000251​.2 c.942+3A>T--Common worldwide
NM_000251​.2
NP_000242​.1
c.388_389delCAp.Gln130ValfsTer2Portugal, South America
c.2152C>Tp.Gln718TerPortugal
c.2063T>Gp.Met688ArgSpain
NM_000251​.2 c.[2635-3C>T; 2635-5T>C]--
c.-3568_*28336del36681
(del exons 4-8)
--
c.*4136_*13502del9366
(del exon 7)
--
c.-11844_1077-6021delins(155)
(del exons 1-6)
--Italy
c.1277−1180_1386+2226del3516insCATTCTCTTTGAAAA)
(del exon 8)
--
c.1276+198_1386+3761del19280
(del exon 8)
--
NM_000251​.2
NP_000242​.1
c.1786_1788delAATp.Asn596delDenmark
NM_000251​.2 c.-823_1076+5984del
(del exons 1-6)
United States
NM_000251​.2
NP_000242​.1
c.1906G>Cp.Ala636ProAshkenazi Jews
c.1165C>Tp.Arg389TerCanada-Quebec
c.2185_2192delATGTTGGAinsCCCTp.Met729ProfsTer2Chile
c.1457_1460delATGAp.Asn486fsTer10China (Guangdong)
MSH6 NM_000179​.2
NP_000170​.1
c.467C>Gp.Ser156TerNetherlands
c.651dupTp.Lys218Ter
c.1614_1615delTCinsAGp.Tyr538Ter
c.2983G>Tp.Glu995TerFinland
c.1346T>Cp.Leu449ProSweden
c.2931C>Gp.Tyr977Ter
c.3959_3962delCAAGp.Ala1320GlufsTer6Ashkenazi Jews
c.3984_3987dupGTCAp.Leu1330ValfsTer12
PMS2 NM_000535​.6 c.989-1G>T--Norway
NM_000535​.6
NP_000526​.2
c.736_741delCCCCCTins11p.Pro246CysfsTer3United States
c.137G>Tp.Ser46IleUnited States
c.1A>Gp.Met1?
c.903G>Tp.Lys301Asn
c.989-296_1144+706del1158
(del exon 10)
p.Glu330_Glu381delAustralia
c.2002A>Gp.Ile668ValInuit

Variants listed in the table have been provided by the authors. GeneReviews staff have not independently verified the classification of variants.

GeneReviews follows the standard naming conventions of the Human Genome Variation Society (varnomen​.hgvs.org). See Quick Reference for an explanation of nomenclature.

1.

Genes from Table 1 in alphabetic order

2.

From: Lynch Syndrome

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