rs1554087691

Variant names:

• chr5-146340328-T-C
• rs1554087691
• NM_002700.3:c.901T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1 PM2 PP2 PP3_Moderate

The NM_002700.3(POU4F3):​c.901T>C​(p.Ser301Pro) variant causes a missense change. 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 (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: POU4F3 NM_002700.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.05
• Publications: 0 publications found

Genes affected

POU4F3 (HGNC:9220): (POU class 4 homeobox 3) This gene encodes a member of the POU-domain family of transcription factors. POU-domain proteins have been observed to play important roles in control of cell identity in several systems. This protein is found in the retina and may play a role in determining or maintaining the identities of a small subset of visual system neurons. Defects in this gene are the cause of non-syndromic sensorineural deafness autosomal dominant type 15. [provided by RefSeq, Mar 2009]

POU4F3 Gene-Disease associations (from GenCC):

• autosomal dominant nonsyndromic hearing loss 15

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
• nonsyndromic genetic hearing loss

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• autosomal dominant nonsyndromic hearing loss

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

RBM27-POU4F3 (HGNC:58349):

ENSG00000250025 (HGNC:):

ACMG classification

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

• PM1: In a DNA_binding_region Homeobox (size 59) in uniprot entity PO4F3_HUMAN there are 10 pathogenic changes around while only 1 benign (91%) in NM_002700.3
• 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 11 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Trascript score misZ: 0.60352 (below the threshold of 3.09). GenCC associations: The gene is linked to autosomal dominant nonsyndromic hearing loss 15, autosomal dominant nonsyndromic hearing loss, nonsyndromic genetic hearing loss.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.869

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POU4F3	NM_002700.3	c.901T>C	p.Ser301Pro	missense_variant	Exon 2 of 2	ENST00000646991.2	NP_002691.1
RBM27-POU4F3	NM_001414499.1	c.*770T>C		3_prime_UTR_variant	Exon 20 of 20		NP_001401428.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
POU4F3	ENST00000646991.2	c.901T>C	p.Ser301Pro	missense_variant	Exon 2 of 2		NM_002700.3	ENSP00000495718.1
ENSG00000250025	ENST00000515598.1	n.404-33052A>G		intron_variant	Intron 2 of 2	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 14, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Ser301Pro variant in POU4F3 has not been previously reported in individual s with hearing loss and was absent from large population studies. Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the p .Ser301Pro variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D;D
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Benign	0.72	D
LIST_S2	Uncertain	0.96	.;D
M_CAP	Pathogenic	0.34	D
MetaRNN	Pathogenic	0.87	D;D
MetaSVM	Pathogenic	0.90	D
MutationAssessor	Benign	1.1	L;L
PhyloP100		5.1
PrimateAI	Pathogenic	0.87	D
PROVEAN	Uncertain	-3.9	.;D
REVEL	Pathogenic	0.81
Sift	Uncertain	0.0090	.;D
Sift4G	Uncertain	0.027	.;D
Polyphen		1.0	D;D
Vest4		0.70
MutPred		0.54		Loss of phosphorylation at S301 (P = 0.02);Loss of phosphorylation at S301 (P = 0.02);
MVP		0.89
MPC		1.5
ClinPred		0.99	D
GERP RS		4.6
Varity_R		0.83
gMVP		0.90
Mutation Taster		=54/46	polymorphism

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: rs1554087691; hg19: chr5-145719891;