Genetic Variant NM_175875.5:c.2170G>A (chr19-45765551-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_175875.5(SIX5):c.2170G>A(p.Val724Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SIX5
NM_175875.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43

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]

SIX5 links:

ENSG00000259605 (HGNC:):

ENSG00000259605 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14564046).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIX5	NM_175875.5 link	c.2170G>A	p.Val724Ile	missense_variant	Exon 3 of 3	ENST00000317578.7	NP_787071.3	Q8N196

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SIX5	ENST00000317578.7 link	c.2170G>A	p.Val724Ile	missense_variant	Exon 3 of 3	1	NM_175875.5	ENSP00000316842.4	Q8N196
SIX5	ENST00000560160 link	c.*380G>A		3_prime_UTR_variant	Exon 2 of 2	2		ENSP00000453239.2	H0YLK1
SIX5	ENST00000560168 link	c.*1596G>A		3_prime_UTR_variant	Exon 3 of 3	4		ENSP00000453189.2	H0YLF6
ENSG00000259605	ENST00000559756.1 link	n.767C>T		non_coding_transcript_exon_variant	Exon 1 of 2	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461118

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726896

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.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Sep 27, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 724 of the SIX5 protein (p.Val724Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SIX5-related conditions. ClinVar contains an entry for this variant (Variation ID: 2071175). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.077

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.077

T;T;T

Eigen

Benign

-0.22

Eigen_PC

Benign

-0.023

FATHMM_MKL

Uncertain

0.78

LIST_S2

Benign

0.78

.;T;T

M_CAP

Uncertain

0.098

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-0.46

MutationAssessor

Benign

0.20

N;N;.

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.11

.;N;.

REVEL

Benign

0.24

Sift

Benign

0.24

.;T;.

Sift4G

Benign

0.90

.;T;D

Polyphen

0.13

B;B;.

Vest4

0.35, 0.11

MutPred

0.21

Loss of ubiquitination at K723 (P = 0.0828);Loss of ubiquitination at K723 (P = 0.0828);.;

MVP

0.93

MPC

0.28

ClinPred

0.45

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.072

gMVP

0.072

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over