rs111033191

Variant names:

• chr7-107698089-A-C
• rs111033191
• NM_000441.2:c.1592A>C

Your query was ambiguous. Multiple possible variants found:

• chr7-107698089-A-C
• chr7-107698089-A-G

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1 PM2 PM5 PP2

The NM_000441.2(SLC26A4):​c.1592A>C​(p.Lys531Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. K531R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC26A4 NM_000441.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.46
• Publications: 0 publications found

Genes affected

SLC26A4 (HGNC:8818): (solute carrier family 26 member 4) Mutations in this gene are associated with Pendred syndrome, the most common form of syndromic deafness, an autosomal-recessive disease. It is highly homologous to the SLC26A3 gene; they have similar genomic structures and this gene is located 3' of the SLC26A3 gene. The encoded protein has homology to sulfate transporters. [provided by RefSeq, Jul 2008]

SLC26A4 Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 4

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• Pendred syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
• athyreosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• thyroid hypoplasia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM1: In a hotspot region, there are 12 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_000441.2
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr7-107698088-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 3601745.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 167 curated pathogenic missense variants (we use a threshold of 10). The gene has 19 curated benign missense variants. Trascript score misZ: -1.7621 (below the threshold of 3.09). GenCC associations: The gene is linked to autosomal recessive nonsyndromic hearing loss 4, Pendred syndrome, athyreosis, thyroid hypoplasia, hearing loss, autosomal recessive.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000441.2. 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
	SLC26A4	NM_000441.2	MANE Select	c.1592A>C	p.Lys531Thr	missense	Exon 14 of 21	NP_000432.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC26A4	ENST00000644269.2	MANE Select	c.1592A>C	p.Lys531Thr	missense	Exon 14 of 21	ENSP00000494017.1
	SLC26A4	ENST00000888701.1		c.1592A>C	p.Lys531Thr	missense	Exon 13 of 20	ENSP00000558760.1
	SLC26A4	ENST00000888700.1		c.1514A>C	p.Lys505Thr	missense	Exon 13 of 20	ENSP00000558759.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.51
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.10
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.49	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.89	D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Uncertain	0.76	D
MutationAssessor	Uncertain	2.5	M
PhyloP100		2.5
PrimateAI	Uncertain	0.52	T
PROVEAN	Uncertain	-4.3	D
REVEL	Uncertain	0.64
Sift	Benign	0.089	T
Sift4G	Benign	0.10	T
Polyphen		0.82	P
Vest4		0.63
MutPred		0.48		Loss of ubiquitination at K531 (P = 0.0134)
MVP		0.97
MPC		0.046
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.77
gMVP		0.70
Mutation Taster		=40/60	disease causing

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

Other links and lift over

dbSNP: rs111033191; hg19: chr7-107338534;