rs131804

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001953.5(TYMP):​c.972C>T​(p.Ala324Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.568 in 1,505,476 control chromosomes in the GnomAD database, including 246,359 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.52 ( 21525 hom., cov: 35)
Exomes 𝑓: 0.57 ( 224834 hom. )

Consequence

TYMP
NM_001953.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: -0.627
Variant links:
Genes affected
TYMP (HGNC:3148): (thymidine phosphorylase) This gene encodes an angiogenic factor which promotes angiogenesis in vivo and stimulates the in vitro growth of a variety of endothelial cells. It has a highly restricted target cell specificity acting only on endothelial cells. Mutations in this gene have been associated with mitochondrial neurogastrointestinal encephalomyopathy. Multiple alternatively spliced transcript variants have been identified. [provided by RefSeq, Apr 2012]
SCO2 (HGNC:10604): (synthesis of cytochrome C oxidase 2) Cytochrome c oxidase (COX) catalyzes the transfer of electrons from cytochrome c to molecular oxygen, which helps to maintain the proton gradient across the inner mitochondrial membrane that is necessary for aerobic ATP production. Human COX is a multimeric protein complex that requires several assembly factors; this gene encodes one of the COX assembly factors. The encoded protein is a metallochaperone that is involved in the biogenesis of cytochrome c oxidase subunit II. Mutations in this gene are associated with fatal infantile encephalocardiomyopathy and myopia 6. [provided by RefSeq, Oct 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 22-50526433-G-A is Benign according to our data. Variant chr22-50526433-G-A is described in ClinVar as [Benign]. Clinvar id is 130694.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr22-50526433-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.627 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.68 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TYMPNM_001953.5 linkc.972C>T p.Ala324Ala synonymous_variant Exon 8 of 10 ENST00000252029.8 NP_001944.1 P19971-1E5KRG5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TYMPENST00000252029.8 linkc.972C>T p.Ala324Ala synonymous_variant Exon 8 of 10 1 NM_001953.5 ENSP00000252029.3 P19971-1

Frequencies

GnomAD3 genomes
AF:
0.520
AC:
79038
AN:
151946
Hom.:
21534
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.349
Gnomad AMI
AF:
0.595
Gnomad AMR
AF:
0.576
Gnomad ASJ
AF:
0.570
Gnomad EAS
AF:
0.699
Gnomad SAS
AF:
0.634
Gnomad FIN
AF:
0.637
Gnomad MID
AF:
0.596
Gnomad NFE
AF:
0.568
Gnomad OTH
AF:
0.517
GnomAD3 exomes
AF:
0.611
AC:
63060
AN:
103254
Hom.:
19375
AF XY:
0.612
AC XY:
35588
AN XY:
58164
show subpopulations
Gnomad AFR exome
AF:
0.368
Gnomad AMR exome
AF:
0.618
Gnomad ASJ exome
AF:
0.572
Gnomad EAS exome
AF:
0.713
Gnomad SAS exome
AF:
0.652
Gnomad FIN exome
AF:
0.631
Gnomad NFE exome
AF:
0.587
Gnomad OTH exome
AF:
0.600
GnomAD4 exome
AF:
0.574
AC:
776735
AN:
1353422
Hom.:
224834
Cov.:
61
AF XY:
0.576
AC XY:
384597
AN XY:
667804
show subpopulations
Gnomad4 AFR exome
AF:
0.334
Gnomad4 AMR exome
AF:
0.612
Gnomad4 ASJ exome
AF:
0.557
Gnomad4 EAS exome
AF:
0.711
Gnomad4 SAS exome
AF:
0.645
Gnomad4 FIN exome
AF:
0.614
Gnomad4 NFE exome
AF:
0.570
Gnomad4 OTH exome
AF:
0.558
GnomAD4 genome
AF:
0.520
AC:
79041
AN:
152054
Hom.:
21525
Cov.:
35
AF XY:
0.529
AC XY:
39312
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.349
Gnomad4 AMR
AF:
0.576
Gnomad4 ASJ
AF:
0.570
Gnomad4 EAS
AF:
0.699
Gnomad4 SAS
AF:
0.633
Gnomad4 FIN
AF:
0.637
Gnomad4 NFE
AF:
0.568
Gnomad4 OTH
AF:
0.514
Alfa
AF:
0.534
Hom.:
3869
Bravo
AF:
0.509
Asia WGS
AF:
0.579
AC:
2006
AN:
3462

ClinVar

Significance: Benign
Submissions summary: Benign:14
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
Jun 30, 2011
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 10, 2014
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:4
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 29, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
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

- -

Feb 22, 2016
Mayo Clinic Laboratories, Mayo Clinic
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mitochondrial DNA depletion syndrome 1 Benign:2
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Dec 05, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Spinal muscular atrophy Benign:1
Sep 16, 2020
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mitochondrial complex IV deficiency, nuclear type 1 Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fatal Infantile Cardioencephalomyopathy Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: 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
-0.80
CADD
Benign
6.2
DANN
Benign
0.94

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: rs131804; hg19: chr22-50964862; API