chr19-45768192-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_175875.5(SIX5):ā€‹c.653C>Gā€‹(p.Ala218Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,762 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

SIX5
NM_175875.5 missense

Scores

2
13
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.09
Variant links:
Genes affected
SIX5 (HGNC:10891): (SIX homeobox 5) The protein encoded by this gene is a homeodomain-containing transcription factor that appears to function in the regulation of organogenesis. This gene is located downstream of the dystrophia myotonica-protein kinase gene. Mutations in this gene are a cause of branchiootorenal syndrome type 2. [provided by RefSeq, Jul 2009]
DM1-AS (HGNC:53125): (DM1 locus antisense RNA)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SIX5NM_175875.5 linkuse as main transcriptc.653C>G p.Ala218Gly missense_variant 1/3 ENST00000317578.7 NP_787071.3
DM1-ASNR_147193.1 linkuse as main transcriptn.336+61G>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SIX5ENST00000317578.7 linkuse as main transcriptc.653C>G p.Ala218Gly missense_variant 1/31 NM_175875.5 ENSP00000316842 P1
ENST00000559756.1 linkuse as main transcriptn.1181-640G>C intron_variant, non_coding_transcript_variant 3
DM1-ASENST00000590076.2 linkuse as main transcriptn.336+61G>C intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460762
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726736
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 14, 2023The c.653C>G (p.A218G) alteration is located in exon 1 (coding exon 1) of the SIX5 gene. This alteration results from a C to G substitution at nucleotide position 653, causing the alanine (A) at amino acid position 218 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.010
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.47
T;T
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.90
.;D
M_CAP
Pathogenic
0.37
D
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Benign
0.84
L;L
MutationTaster
Benign
1.0
D;N
PrimateAI
Uncertain
0.79
T
PROVEAN
Benign
-0.62
.;N
REVEL
Uncertain
0.50
Sift
Uncertain
0.010
.;D
Sift4G
Uncertain
0.035
.;D
Polyphen
0.98
D;D
Vest4
0.27
MutPred
0.52
Loss of MoRF binding (P = 0.1258);Loss of MoRF binding (P = 0.1258);
MVP
0.97
MPC
2.0
ClinPred
0.90
D
GERP RS
4.5
Varity_R
0.34
gMVP
0.51

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-46271450; API