rs11129748

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000249.4(MLH1):​c.1039-78A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.45 in 709,402 control chromosomes in the GnomAD database, including 78,548 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

Frequency

Genomes: 𝑓 0.36 ( 10133 hom., cov: 24)
Exomes 𝑓: 0.47 ( 68415 hom. )

Consequence

MLH1
NM_000249.4 intron

Scores

2

Clinical Significance

Benign reviewed by expert panel B:4

Conservation

PhyloP100: -1.10

Publications

12 publications found
Variant links:
Genes affected
MLH1 (HGNC:7127): (mutL homolog 1) The protein encoded by this gene can heterodimerize with mismatch repair endonuclease PMS2 to form MutL alpha, part of the DNA mismatch repair system. When MutL alpha is bound by MutS beta and some accessory proteins, the PMS2 subunit of MutL alpha introduces a single-strand break near DNA mismatches, providing an entry point for exonuclease degradation. The encoded protein is also involved in DNA damage signaling and can heterodimerize with DNA mismatch repair protein MLH3 to form MutL gamma, which is involved in meiosis. This gene was identified as a locus frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). [provided by RefSeq, Aug 2017]
MLH1 Gene-Disease associations (from GenCC):
  • Lynch syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet
  • Lynch syndrome 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp
  • Muir-Torre syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, G2P, Orphanet
  • mismatch repair cancer syndrome 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Orphanet, ClinGen
  • Lynch syndrome 1
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • ovarian cancer
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • malignant pancreatic neoplasm
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • rhabdomyosarcoma
    Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
  • prostate cancer
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • breast cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
  • hereditary breast carcinoma
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.95).
BP6
Variant 3-37025559-A-G is Benign according to our data. Variant chr3-37025559-A-G is described in ClinVar as Benign. ClinVar VariationId is 89625.Status of the report is reviewed_by_expert_panel, 3 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.451 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MLH1NM_000249.4 linkc.1039-78A>G intron_variant Intron 11 of 18 ENST00000231790.8 NP_000240.1 P40692-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MLH1ENST00000231790.8 linkc.1039-78A>G intron_variant Intron 11 of 18 1 NM_000249.4 ENSP00000231790.3 P40692-1

Frequencies

GnomAD3 genomes
AF:
0.360
AC:
50413
AN:
139848
Hom.:
10131
Cov.:
24
show subpopulations
Gnomad AFR
AF:
0.217
Gnomad AMI
AF:
0.537
Gnomad AMR
AF:
0.398
Gnomad ASJ
AF:
0.408
Gnomad EAS
AF:
0.0780
Gnomad SAS
AF:
0.225
Gnomad FIN
AF:
0.375
Gnomad MID
AF:
0.368
Gnomad NFE
AF:
0.456
Gnomad OTH
AF:
0.358
GnomAD4 exome
AF:
0.472
AC:
268833
AN:
569542
Hom.:
68415
AF XY:
0.469
AC XY:
133530
AN XY:
284888
show subpopulations
African (AFR)
AF:
0.199
AC:
2021
AN:
10176
American (AMR)
AF:
0.396
AC:
2349
AN:
5932
Ashkenazi Jewish (ASJ)
AF:
0.434
AC:
3696
AN:
8522
East Asian (EAS)
AF:
0.123
AC:
1735
AN:
14114
South Asian (SAS)
AF:
0.292
AC:
3433
AN:
11746
European-Finnish (FIN)
AF:
0.424
AC:
3940
AN:
9292
Middle Eastern (MID)
AF:
0.379
AC:
569
AN:
1500
European-Non Finnish (NFE)
AF:
0.498
AC:
241739
AN:
485744
Other (OTH)
AF:
0.415
AC:
9351
AN:
22516
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.567
Heterozygous variant carriers
0
5227
10454
15681
20908
26135
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
7516
15032
22548
30064
37580
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.360
AC:
50411
AN:
139860
Hom.:
10133
Cov.:
24
AF XY:
0.353
AC XY:
23806
AN XY:
67346
show subpopulations
African (AFR)
AF:
0.217
AC:
7974
AN:
36726
American (AMR)
AF:
0.399
AC:
5437
AN:
13638
Ashkenazi Jewish (ASJ)
AF:
0.408
AC:
1386
AN:
3396
East Asian (EAS)
AF:
0.0779
AC:
378
AN:
4854
South Asian (SAS)
AF:
0.225
AC:
1029
AN:
4574
European-Finnish (FIN)
AF:
0.375
AC:
2711
AN:
7234
Middle Eastern (MID)
AF:
0.340
AC:
87
AN:
256
European-Non Finnish (NFE)
AF:
0.456
AC:
30246
AN:
66370
Other (OTH)
AF:
0.355
AC:
679
AN:
1910
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.546
Heterozygous variant carriers
0
1380
2761
4141
5522
6902
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
470
940
1410
1880
2350
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.360
Hom.:
3261
Bravo
AF:
0.347
Asia WGS
AF:
0.180
AC:
621
AN:
3424

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Benign:2
Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
-
Mayo Clinic Laboratories, Mayo Clinic
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:research

- -

Lynch syndrome Benign:1
Sep 05, 2013
International Society for Gastrointestinal Hereditary Tumours (InSiGHT)
Significance:Benign
Review Status:reviewed by expert panel
Collection Method:research

MAF >1% -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.95
CADD
Benign
0.013
DANN
Benign
0.54
PhyloP100
-1.1
PromoterAI
0.010
Neutral
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs11129748; hg19: chr3-37067050; API