rs876658002

Variant names:

• chr14-60648703-G-A
• rs876658002
• NM_005982.4:c.487C>T

Your query was ambiguous. Multiple possible variants found:

• chr14-60648703-G-A
• chr14-60648703-G-C

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM2 PP2 PP3_Strong

The NM_005982.4(SIX1):​c.487C>T​(p.Leu163Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L163V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SIX1 NM_005982.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.99
• Publications: 0 publications found

Genes affected

SIX1 (HGNC:10887): (SIX homeobox 1) The protein encoded by this gene is a homeobox protein that is similar to the Drosophila 'sine oculis' gene product. This gene is found in a cluster of related genes on chromosome 14 and is thought to be involved in limb development. Defects in this gene are a cause of autosomal dominant deafness type 23 (DFNA23) and branchiootic syndrome type 3 (BOS3). [provided by RefSeq, Jul 2008]

MIR9718 (HGNC:53988): (microRNA 9718) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_005982.4
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 13 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Trascript score misZ: 1.0225 (below the threshold of 3.09). GenCC associations: The gene is linked to autosomal dominant nonsyndromic hearing loss 23, branchiootic syndrome 3, branchio-oto-renal syndrome, autosomal dominant nonsyndromic hearing loss, branchiootic syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.969

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005982.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIX1	NM_005982.4	MANE Select	c.487C>T	p.Leu163Phe	missense	Exon 1 of 2	NP_005973.1	Q15475
	SIX1	NM_001425142.1		c.487C>T	p.Leu163Phe	missense	Exon 1 of 2	NP_001412071.1
	MIR9718	NR_162089.1		n.56G>A		non_coding_transcript_exon	Exon 1 of 1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIX1	ENST00000645694.3	MANE Select	c.487C>T	p.Leu163Phe	missense	Exon 1 of 2	ENSP00000494686.1	Q15475
	SIX1	ENST00000949515.1		c.425+62C>T		intron	N/A	ENSP00000619574.1
	SIX1	ENST00000554986.2	TSL:3	c.42-2126C>T		intron	N/A	ENSP00000452700.2	H0YK85

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Branchiootic syndrome 3;C1854594:Autosomal dominant nonsyndromic hearing loss 23 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.55	D
BayesDel_noAF	Pathogenic	0.55
CADD	Pathogenic	34
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.97	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.39	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.8	H
PhyloP100		10
PrimateAI	Pathogenic	0.89	D
PROVEAN	Uncertain	-3.5	D
REVEL	Pathogenic	0.92
Sift	Uncertain	0.0050	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.89
MutPred		0.85		Gain of phosphorylation at T166 (P = 0.1266)
MVP		0.98
MPC		2.5
ClinPred		1.0	D
GERP RS		5.0
Varity_R		0.93
gMVP		0.92
Mutation Taster		=9/91	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs876658002; hg19: chr14-61115421;