chr10-87863560-T-C

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP6_Very_Strong

The NM_001433720.1(MLDHR):​c.2T>C​(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.000104 in 383,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

MLDHR
NM_001433720.1 start_lost

Scores

2

Clinical Significance

Likely benign reviewed by expert panel U:1B:5

Conservation

PhyloP100: 4.25
Variant links:
Genes affected
PTEN (HGNC:9588): (phosphatase and tensin homolog) This gene was identified as a tumor suppressor that is mutated in a large number of cancers at high frequency. The protein encoded by this gene is a phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. It contains a tensin like domain as well as a catalytic domain similar to that of the dual specificity protein tyrosine phosphatases. Unlike most of the protein tyrosine phosphatases, this protein preferentially dephosphorylates phosphoinositide substrates. It negatively regulates intracellular levels of phosphatidylinositol-3,4,5-trisphosphate in cells and functions as a tumor suppressor by negatively regulating AKT/PKB signaling pathway. The use of a non-canonical (CUG) upstream initiation site produces a longer isoform that initiates translation with a leucine, and is thought to be preferentially associated with the mitochondrial inner membrane. This longer isoform may help regulate energy metabolism in the mitochondria. A pseudogene of this gene is found on chromosome 9. Alternative splicing and the use of multiple translation start codons results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2015]
KLLN (HGNC:37212): (killin, p53 regulated DNA replication inhibitor) The protein encoded by this intronless gene is found in the nucleus, where it can inhibit DNA synthesis and promote S phase arrest coupled to apoptosis. The expression of this DNA binding protein is upregulated by transcription factor p53. [provided by RefSeq, Dec 2012]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP6
Variant 10-87863560-T-C is Benign according to our data. Variant chr10-87863560-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 127681.Status of the report is reviewed_by_expert_panel, 3 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTENNM_000314.8 linkc.-910T>C upstream_gene_variant ENST00000371953.8 NP_000305.3
KLLNNM_001126049.2 linkc.-1073A>G upstream_gene_variant ENST00000445946.5 NP_001119521.1 B2CW77

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MLDHRENST00000692337.1 linkc.2T>C p.Met1? start_lost Exon 1 of 1 ENSP00000509326.1
PTENENST00000371953.8 linkc.-910T>C upstream_gene_variant 1 NM_000314.8 ENSP00000361021.3 P60484-1
KLLNENST00000445946.5 linkc.-1073A>G upstream_gene_variant 6 NM_001126049.2 ENSP00000392204.2 B2CW77

Frequencies

GnomAD3 genomes
AF:
0.0000725
AC:
11
AN:
151628
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000726
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000984
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000295
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000125
AC:
29
AN:
231838
Hom.:
0
Cov.:
0
AF XY:
0.000136
AC XY:
16
AN XY:
117842
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
6532
American (AMR)
AF:
0.00
AC:
0
AN:
6876
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
8514
East Asian (EAS)
AF:
0.000814
AC:
18
AN:
22106
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2732
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
20332
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
1226
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
148302
Other (OTH)
AF:
0.000723
AC:
11
AN:
15218
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000725
AC:
11
AN:
151736
Hom.:
0
Cov.:
32
AF XY:
0.0000674
AC XY:
5
AN XY:
74170
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41426
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.000987
AC:
5
AN:
5066
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4794
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10554
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
290
European-Non Finnish (NFE)
AF:
0.0000295
AC:
2
AN:
67862
Other (OTH)
AF:
0.00
AC:
0
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000155
Hom.:
0
Bravo
AF:
0.0000453

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:5
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Sep 15, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 10, 2020
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
May 02, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: PTEN c.-910T>C is located in the untranscribed region upstream of the PTEN gene region. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0001 in 383574 control chromosomes. The observed variant frequency is approximately 17 fold of the estimated maximal expected allele frequency for a pathogenic variant in PTEN causing Cowden Syndrome phenotype (6.3e-06). To our knowledge, no occurrence of c.-910T>C in individuals affected with Cowden Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 127681). Based on the evidence outlined above, the variant was classified as likely benign. -

Prostate cancer;C1854416:Macrocephaly-autism syndrome;C2751642:Glioma susceptibility 2;C3551915:Familial meningioma;CN072330:Cowden syndrome 1 Benign:1
Apr 19, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

PTEN hamartoma tumor syndrome Benign:1
Jul 25, 2018
Clingen PTEN Variant Curation Expert Panel, Clingen
Significance:Likely benign
Review Status:reviewed by expert panel
Collection Method:curation

PTEN c.-909T>C (NC_000010.10:g.87863560T>C) meets criteria to be classified as likely benign for PTEN Hamartoma Tumor syndrome in an autosomal dominant manner using modified ACMG criteria (PMID 30311380). Please see a summary of the rules and criteria codes in the "PTEN ACMG Specifications Summary" document (assertion method column). BP2: Observed in trans with a pathogenic or likely pathogenic PTEN variant. (internal laboratory contributor ClinVar Organization ID 19864) BP5: Variant found in multiple cases with alternate molecular basis for disease. (internal laboratory contributors SCV000185347.1, SCV000149485.5) -

Hereditary cancer-predisposing syndrome Benign:1
Oct 30, 2013
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
CADD
Benign
22
DANN
Benign
0.88
PhyloP100
4.2
PromoterAI
0.59
Over-expression
Mutation Taster
=290/10
polymorphism

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

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Other links and lift over

dbSNP: rs550385924; hg19: chr10-89623317; API