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rs267607911

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1

The NM_000251.3(MSH2):c.1A>C(p.Met1?) variant causes a start lost change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000828 in 1,594,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

MSH2
NM_000251.3 start_lost

Scores

8
5
3

Clinical Significance

Uncertain significance reviewed by expert panel U:13B:1

Conservation

PhyloP100: 7.84
Variant links:
Genes affected
MSH2 (HGNC:7325): (mutS homolog 2) This locus is frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). When cloned, it was discovered to be a human homolog of the E. coli mismatch repair gene mutS, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in HNPCC. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Start lost variant, no new inframe start found.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MSH2NM_000251.3 linkuse as main transcriptc.1A>C p.Met1? start_lost 1/16 ENST00000233146.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MSH2ENST00000233146.7 linkuse as main transcriptc.1A>C p.Met1? start_lost 1/161 NM_000251.3 P1P43246-1

Frequencies

GnomAD3 genomes
AF:
0.0000525
AC:
8
AN:
152244
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000512
AC:
11
AN:
214858
Hom.:
0
AF XY:
0.0000428
AC XY:
5
AN XY:
116898
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000860
AC:
124
AN:
1441876
Hom.:
0
Cov.:
31
AF XY:
0.0000811
AC XY:
58
AN XY:
715500
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000110
Gnomad4 OTH exome
AF:
0.0000503
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152244
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000118
Hom.:
0
Bravo
AF:
0.0000491
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000499
AC:
6

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:13Benign:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Uncertain:3
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineApr 05, 2019The c.1A>C (p.Met1?) variant in MSH2 has been reported in >10 individual with colorectal cancer (Otway 2000, Parc 2003, Barnetson 2006, Kets 2009, Cyr 2012, Rosenthal 2015, Chubb 2015) and has been identified in 0.01% (11/93132) of European chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org/; dbSNP rs267607911). This variant disrupts the translation initiation start codon (ATG) of MSH2 and has been shown to result in a truncated protein missing the first 25 residues (Cyr 2012). In vitro functional studies found that the truncated protein was capable of binding to MSH6 but only had slightly reduced activity compared to the wild type protein (Cyr 2012). The c.1A>C variant has been reported in trans with known pathogenic MSH2 variants in multiple individuals who did not have constitutional mismatch repair-deficiency, suggesting that the c.1A>C variant may not be disease causing (Kets 2009, Rosenthal 2015). Additionally, this variant was classified as a variant of uncertain significance on Sept. 5, 2013 by the ClinGen-approved InSiGHT expert panel (SCV000107358.2). In summary, the clinical significance of the c.1A>C variant is uncertain. ACMG/AMP Criteria applied: PS3_Supporting, BP2. -
Uncertain significance, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoJun 07, 2023This variant disrupts the translation initiation codon of the MSH2 mRNA and is predicted to interfere with MSH2 protein synthesis. In the published literature, this variant has been reported in multiple patients with early onset colorectal cancer, hereditary nonpolyposis colorectal cancer (HNPCC) patients, pancreatic cancer, hereditary diffuse gastric cancer and ovarian cancer (PMID: 9718327 (1998), 23047549 (2012), 25479140 (2015), 25559809 (2015), 28944238 (2017) and 29706558 (2018)). As evidence suggests, however, this variant is predicted not to cause the classic Lynch syndrome as colon cancer tumors that carry this variant are usually microsatellite instability-low (MSI-Low) (PMID: 18033691 (2008)). In addition, another start-loss variant in MSH2 (c.1A>G) has been previously reported in two siblings who were compound heterozygotes with another pathogenic germline mutation. According to this case report, while both siblings had multiple cancers related to Lynch Syndrome, neither had Constitutional Mismatch Repair Deficiency Syndrome (PMID: 18781192 (2009)). Functional studies have shown that cells carrying this variant produce both the full length protein and a truncated form of the MSH2 protein (an MSH2 protein with the first 25 amino acids deleted). The shorter protein has been shown to have a modest biochemical defect. These studies have also shown that the cells carrying this variant have a small but statistically significant reduction in mismatch repair (MMR) efficiency as compared to wild type cells (PMID: 21837758 (2012)). The frequency of this variant in the general population, 0.00012 (13/110908 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Based on the available information, we are unable to determine the clinical significance of this variant. -
Uncertain significance, criteria provided, single submitterclinical testingGeneDxAug 15, 2023Initiator codon variant shown to produce multiple protein products including a full-length and a truncated transcript missing the first 25 amino acids through use of an in-frame alternate start codon (Cyr et al., 2012); Published functional studies are inconclusive: Demonstrated impaired DNA binding and mismatch repair activity, but had no effect on MSH6 or MSH3 interaction (Cyr et al., 2012); Observed in individuals with MSH2-related cancers; however, tumor studies have shown microsatellite stability (MSS) or low levels of instability (MSI-L), and no loss of MSH2 protein expression (Otway et al., 2000; Parc et al., 2003; Barnetson et al., 2006; Barnetson et al., 2008; Pal et al., 2012; Cyr et al., 2012; Chubb et al., 2015; Grant et al., 2015; Fewings et al., 2018); This variant is associated with the following publications: (PMID: 12624141, 27476653, 10874307, 16807412, 18033691, 18781192, 23047549, 27064304, 24302565, 27153395, 28779004, 27449771, 28944238, 9718327, 25479140, 25559809, 29706558, 30728895, 26270727, 32338768, 29625052, 21837758, 18822302, 21120944, 22814378, 25639900, 34541770, 33471991, 36451132, 34326862) -
Hereditary cancer-predisposing syndrome Uncertain:3
Uncertain significance, criteria provided, single submittercurationSema4, Sema4May 22, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 29, 2023The p.M1? variant (also known as c.1A>C) is located in coding exon 1 of the MSH2 gene and results from an A to C substitution at nucleotide position 1. This alters the methionine residue at the initiation codon. Translation initiation may occur through use of CUG at the original start codon or may lead to a protein with a N-terminal truncation of 25 amino acids due to the presence of another downstream methionine at codon 26 (Cyr JL et al. Mol. Carcinog. 2012 Aug;51:647-58). Studies of this truncated MSH2 (NΔ25) protein reflect an impaired ability to bind and cleave ATP, although it retains its ability to heterodimerize with MSH6 and MSH3 and it can still bind to mismatched DNA, albeit at a reduced rate (Cyr JL et al. Mol. Carcinog. 2012 Aug;51:647-58). Transfection of a cDNA containing the c.1A>C alteration into an MSH2-null, human endometrial cancer cell line showed slight, but statistically significant decrease in mismatch repair activity (Cyr JL et al. Mol. Carcinog. 2012 Aug;51:647-58). This attenuated effect may be due to partial function of the truncated protein and/or expression of the full-length protein resulting from weak translation at the altered, non-AUG start codon, which was detected concomitantly with the truncated protein in this study (Cyr JL et al. Mol. Carcinog. 2012 Aug;51:647-58). In a massively parallel cell-based functional assay testing susceptibility to a DNA damaging agent, 6-thioguanine (6-TG), this variant was determined to be functionally neutral (Jia X et al. Am J Hum Genet, 2021 Jan;108:163-175). Alterations at the initiation codon of MSH2 have been identified in several cancer cohorts; however, tumors do not consistently demonstrate microsatellite instability and abnormal immunohistochemical staining (Farrington SM et al. Am. J. Hum. Genet. 1998 Sep;63:749-59; Otway R et al. Hum. Mutat. 2000;16:61-7; Barnetson RA et al. N. Engl. J. Med. 2006 Jun;354:2751-63; Barnetson RA et al. Hum. Mutat. 2008 Mar;29:367-74; Pal T et al. Br. J. Cancer. 2012 Nov;107:1783-90; Chubb D et al. J. Clin. Oncol., 2015 Feb;33:426-32; Grant RC et al. Gastroenterology, 2015 Mar;148:556-64; Desmond A et al. JAMA Oncol. 2015 Oct;1:943-51). In another study, two siblings without constitutional mismatch repair deficiency (CMMRD) syndrome were reported to be compound heterozygous for an MSH2 start codon alteration and an MSH2 gross deletion and had an unusually severe Lynch tumor burden (Kets CM et al. Eur. J. Hum. Genet. 2009 Feb;17:159-64). This alteration has also been seen in a compound heterozygous state with an MSH2 truncation mutation in an individual who reportedly did not have features of CMMRD (Rosenthal ET et al. Clin. Genet. 2015 Dec;88:533-41). This amino acid position is highly conserved in available vertebrate species. Since supporting evidence is conflicting at this time, the clinical significance of this alteration remains unclear. -
Uncertain significance, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthNov 27, 2023This variant alters the translation initiation codon methionine at codon 1 of the MSH2 protein. A functional study has shown that leucine encoded by c.1A>C variant could serve as a translation initiation site and results in the production of a full length protein that exhibits near normal activity (PMID: 21837758). In another functional study, the Met1Leu variant does not impact MSH2 function in a 6-thioguanine sensitivity assay in haploid human cells (internally defined LOF score threshold <= -1.32, PMID: 33357406). It has also been shown that a downstream methionine at codon 26 may serve as an alternate translation initiation site at low levels and that recombinant MSH2 protein lacking the first 25 amino acids were largely functional (PMID: 21837758). An alternative MSH2 transcript (NM_001258281) lacking the first 66 amino acids of the primary transcript, is expressed at similar or higher levels in human tissues (https://gnomad.broadinstitute.org/). This variant has been observed in an individual affected with ovarian cancer with multiple Lynch syndrome-associated cancers in the family (PMID: 21837758), and an individual affected with early onset colorectal cancer (PMID: 28944238). A study of 14 carriers from eight families has suggested that the presence of this variant does not appear to be diagnostic of Lynch syndrome (PMID: 25639900). This variant has been observed in individuals affected with breast, prostate, pancreatic, and lung cancer (PMID: 25479140, 29625052, 32338768, 33471991), as well as in healthy unaffected individuals (PMID: 33471991). This variant has been identified in 13/246250 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Lynch syndrome Uncertain:2
Uncertain significance, reviewed by expert panelcurationInternational Society for Gastrointestinal Hereditary Tumours (InSiGHT)Jun 21, 2019Insufficient evidence -
Uncertain significance, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthDec 18, 2023This variant alters the translation initiation codon methionine at codon 1 of the MSH2 protein. A functional study has shown that leucine encoded by c.1A>C variant could serve as a translation initiation site and results in the production of a full length protein that exhibits near normal activity (PMID: 21837758). In another functional study, the Met1Leu variant does not impact MSH2 function in a 6-thioguanine sensitivity assay in haploid human cells (internally defined LOF score threshold <= -1.32, PMID: 33357406). It has also been shown that a downstream methionine at codon 26 may serve as an alternate translation initiation site at low levels and that recombinant MSH2 protein lacking the first 25 amino acids were largely functional (PMID: 21837758). An alternative MSH2 transcript (NM_001258281) lacking the first 66 amino acids of the primary transcript, is expressed at similar or higher levels in human tissues (https://gnomad.broadinstitute.org/). This variant has been observed in an individual affected with ovarian cancer with multiple Lynch syndrome-associated cancers in the family (PMID: 21837758), and an individual affected with early onset colorectal cancer (PMID: 28944238). A study of 14 carriers from eight families has suggested that the presence of this variant does not appear to be diagnostic of Lynch syndrome (PMID: 25639900). This variant has been observed in individuals affected with breast, prostate, pancreatic, and lung cancer (PMID: 25479140, 29625052, 32338768, 33471991), as well as in healthy unaffected individuals (PMID: 33471991). This variant has been identified in 13/246250 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
MSH2-related condition Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 27, 2023The MSH2 c.1A>C variant is predicted to disrupt the translation initiation site (Start loss). This variant has been reported in individuals with ovarian (Pal et al. 2012. PubMed ID: 23047549), pancreatic (Table S1, Grant et al. 2015. PubMed ID: 25479140), prostate (Table S1, Nguyen-Dumont et al. 2020. PubMed ID: 32338768), colorectal (Barnetson et al. 2008. PubMed ID: 18033691; Table S1, DeRycke et al. 2017. PubMed ID: 28944238), and gastric cancers (Fewings et al. 2018. PubMed ID: 29706558). Disruptions of the MSH2 start codon in the NM_000251 transcript have been shown to result in a truncated MSH2 protein lacking the first 25 amino acids and biochemically confirmed to result in multiple protein products (in human cell lines) that may include the truncated and full-length forms of MSH2 and to reduce MMR efficiency slightly (Farrington et al. 1998. PubMed ID: 9718327; Cyr et al. 2012. PubMed ID: 21837758). However, the loss of MSH2 start codon has also been reported in at least three individuals without clinical features of constitutional mismatch repair deficiency syndrome, who had other pathogenic MSH2 variants in trans (Kets et al. 2009. PubMed ID: 18781192; Rosenthal et al. 2015. PubMed ID: 25639900). This variant is reported in 0.012% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/2-47630331-A-C) and is interpreted as a variant of uncertain significance in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/90832/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Lynch syndrome 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylDec 16, 2015- -
Hereditary nonpolyposis colorectal neoplasms Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJan 29, 2024This sequence change affects the initiator methionine of the MSH2 mRNA. The next in-frame methionine is located at codon 26. It is unclear whether it will result in an absent or disrupted protein product because an in-frame methionine located at codon 26 has the potential to rescue this variant. This variant is present in population databases (rs267607911, gnomAD 0.01%). Disruption of the initiator codon has been observed in individual(s) with lung cancer, ovarian cancer (PMID: 34326862, 36451132). Disruption of the initiator codon has been observed on the opposite chromosome (in trans) from a pathogenic variant in MSH2 in at least one individual (PMID: 25639900), which suggests that this variant may not be disease-causing. ClinVar contains an entry for this variant (Variation ID: 90832). Algorithms developed to predict the effect of variants on protein structure and function are not available or were not evaluated for this variant. Experimental studies have shown that disruption of the initiator codon affects MSH2 function (PMID: 21837758). Reports on variants that affect the MSH2 initiator codon, c.1A>C and c.1A>T, indicate that Met26 may serve as an alternate initiator codon (PMID: 21837758, 9718327, 18781192). An experimental study of a recombinant MSH2 protein lacking the first 25 amino acid residues has shown that the truncated protein remains partially functional (PMID: 21837758). The clinical significance of these findings is unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Malignant tumor of breast Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The MSH2 p.Met1? variant was identified in 5 of 8838 proband chromosomes (frequency: 0.001) from individuals or families with ovarian, colorectal, or pancreatic cancer and was not identified in 2844 control chromosomes from healthy individuals (Barnetson 2008, DeRycke 2017, Grant 2015, Otway 2000, Pal 2012). The variant was also identified in dbSNP (ID: rs267607911) as "With Uncertain significance allele", ClinVar (classified as uncertain significance by InSight, Invitae, GeneDx, Ambry Genetics, Counsyl and Quest Diagnostics Nichols Institute San Juan Capistrano), Clinvitae, UMD-LSDB (1x as causal), Mismatch Repair Genes Variant Database, and Insight Hereditary Tumors (2x uncertain significance). The variant was not identified in GeneInsight-COGR, Cosmic, MutDB, Insight Colon Cancer Gene Variant Database, or Zhejiang University databases. The variant was identified in control databases in 11 of 208952 chromosomes at a frequency of 0.0001 (Genome Aggregation Database Feb 27, 2017). The variant observed in European population in 11 of 93132 chromosomes (freq: 0.0001), while the variant was not observed in the African, Other, Latino, Ashkenazi Jewish, East Asian, Finnish, or South Asian populations. The c.1A>C p.Met1? variant occurs in the first base of the translation initiation site (the Methionine amino acid start site), increasing the likelihood this variant may disrupt translation or lead to an abnormal protein product. In addition, 1 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. An in vivo MMR assay by Cyr (2012) suggests the variant may have a moderate impact on disease phenotype. This alteration leads to the production of multiple protein products in human cells that may include the truncated and full-length forms of MSH2. Production of functional protein occurs through use of an alternative start codon at codon 26. In addition, the later study by Rosenthal (2015) published the case of two siblings with this variant in trans with a deletion of exons 1–6 in MSH2, and no reported features of CMMR-D, and in trans with the pathogenic variant MSH2 c.2038C>T (p.Arg680*) in patient without reported features of CMMR-D. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Muir-Torré syndrome;C2936783:Lynch syndrome 1;C5436806:Mismatch repair cancer syndrome 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsFeb 01, 2022- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpAug 28, 2023Variant summary: MSH2 c.1A>C (p.Met1?) alters the initiation codon and is predicted to result either in absence of the protein or truncation of the encoded protein due to translation initiation at a downstream methionine codon located 26 residues into the protein sequence. To our knowledge no pathogenic variants upstream of this alternate methionine codon 26 have been reported. Three of four in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 5.1e-05 in 214958 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in MSH2 causing Hereditary Nonpolyposis Colorectal Cancer (Lynch syndrome), allowing no conclusion about variant significance. c.1A>C has been reported in the literature in individuals affected with Hereditary Nonpolyposis Colorectal Cancer (HNPCC) (Otway_2000), MSI low sigmoid colon tumor who did not fulfill both the modified Amsterdam and Bethesda criteria (Barnetson_2006 and 2008), Ovarian cancer who did not meet the Bethesda criteria for HNPCC (Cyr_2012), epithelial ovarian cancer (Pal_2012), serous and/or non-serous ovarian cancer (Kim_2020), colorectal cancer (Rosenthal_2015, DeRycke_2017), breast cancer (Desmond_2015), and diffuse gastric cancer (Fewings_2018). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Nonpolyposis Colorectal Cancer/Lynch syndrome. At-least two co-occurrences in trans with other pathogenic variant(s) have been reported in individuals with no evidence of constitutional mismatch repair deficiency (CMMRD) (MSH2 exons 1-6del and MSH2 c.2038C>T, p.Arg680* in Rosenthal_2015). Furthermore, a recent study lists this variant as a VUS identified in a mismatch repair (MMR) proficient individual with colorectal cancer and a family history of colon cancer (mother at age 78) and Lymphoma/breast cancer (sister aged 50s), who harbored two additional pathogenic variants in the ATM (c.5932C>T, p.Glu1978*) and BRIP1 (c.1871C>A, p.Ser624*) genes (Pearlman_2021). These reports collectively provide convincing evidence for a non-causative/benign role attributed to this variant. At least two publications report experimental evidence evaluating an impact on protein function. The most pronounced variant effect results in a partially functional mismatch repair activity using a lentiviral expression system (Cyr_2012) while another study reported a functionally neutral outcome in a massively parallel assay system measuring sensitivity to 6-thioguanine(6-TG) (Jia_2021). The following publications have been ascertained in the context of this evaluation (PMID: 18033691, 16807412, 21837758, 28944238, 26270727, 9718327, 29706558, 32809219, 10874307, 23047549, 34250417, 25639900, 33357406). Multiple clinical diagnostic laboratories and one expert panel (InSiGHT) have submitted clinical-significance assessments for this variant to ClinVar after 2014 (VUS, n=8; Likely benign, n=1). Some of the submitters have provided overlapping evidence utilized in the context of this evaluation. Based on the published clinical and functional evidence spanning over 13 years (2008-2021) as outlined above, the variant was re-classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.45
Cadd
Benign
23
Dann
Benign
0.94
DEOGEN2
Uncertain
0.45
T;.;.
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Pathogenic
0.96
D
MetaRNN
Pathogenic
0.83
D;D;D
MetaSVM
Uncertain
0.68
D
MutationTaster
Benign
1.0
D;D;D
PROVEAN
Benign
-1.4
N;.;N
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D;.;D
Sift4G
Pathogenic
0.0
D;.;D
Polyphen
0.52
P;.;P
Vest4
0.96
MutPred
1.0
Loss of methylation at K6 (P = 0.071);Loss of methylation at K6 (P = 0.071);Loss of methylation at K6 (P = 0.071);
MVP
0.98
ClinPred
0.99
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.97
gMVP
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs267607911; hg19: chr2-47630331; COSMIC: COSV105085946; API