Genetic Variant NM_001101677.2:c.1106C>T (chr9-135693655-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001101677.2(SOHLH1):c.1106C>T(p.Ala369Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000696 in 1,435,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A369E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

SOHLH1
NM_001101677.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.203

Publications

0 publications found

Variant links:

Genes affected

SOHLH1 (HGNC:27845): (spermatogenesis and oogenesis specific basic helix-loop-helix 1) This gene encodes one of testis-specific transcription factors which are essential for spermatogenesis, oogenesis and folliculogenesis. This gene is located on chromosome 9. Mutations in this gene are associated with nonobstructive azoospermia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2013]

SOHLH1 Gene-Disease associations (from GenCC):

ovarian dysgenesis 5
Inheritance: AR, AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
hypogonadism
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

SOHLH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.059911817).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SOHLH1	NM_001101677.2 link	c.1106C>T	p.Ala369Val	missense_variant	Exon 8 of 8	ENST00000425225.2	NP_001095147.2	Q5JUK2-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SOHLH1	ENST00000425225.2 link	c.1106C>T	p.Ala369Val	missense_variant	Exon 8 of 8	5	NM_001101677.2	ENSP00000404438.1	Q5JUK2-2
SOHLH1	ENST00000298466.9 link	c.*691C>T		3_prime_UTR_variant	Exon 7 of 7	1		ENSP00000298466.5	Q5JUK2-1
SOHLH1	ENST00000673731.1 link	c.530C>T	p.Ala177Val	missense_variant	Exon 5 of 5			ENSP00000501311.1	A0A669KBI8
SOHLH1	ENST00000674066.1 link	n.*5C>T		downstream_gene_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.96e-7

AC:

AN:

1435808

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

711670

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

32810

American (AMR)

AF:

0.00

AC:

AN:

41390

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25572

East Asian (EAS)

AF:

0.00

AC:

AN:

38020

South Asian (SAS)

AF:

0.0000122

AC:

AN:

81808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51136

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5706

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1099882

Other (OTH)

AF:

0.00

AC:

AN:

59484

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.81

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.016

LIST_S2

Benign

0.33

M_CAP

Benign

0.0072

MetaRNN

Benign

0.060

MetaSVM

Benign

-1.0

PhyloP100

0.20

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.76

REVEL

Benign

0.029

Sift

Benign

0.075

Sift4G

Uncertain

0.027

Polyphen

0.11

Vest4

0.097

MutPred

0.42

Loss of ubiquitination at K374 (P = 0.0816);

MVP

0.13

MPC

0.16

ClinPred

0.083

GERP RS

-2.5

gMVP

0.015

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over