Genetic Variant BHLHA9:c.-26G>A (chr17-1270538-G-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001164405.2(BHLHA9):c.-26G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000706 in 1,221,552 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0035 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00031 ( 3 hom. )

Consequence

BHLHA9
NM_001164405.2 5_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.21

Variant links:

Genes affected

BHLHA9 (HGNC:35126): (basic helix-loop-helix family member a9) This gene is a member of the basic helix-loop-helix family. The encoded protein is a transcription factor involved in limb development. Mutations in this gene have been associated with mesoaxial synostotic syndactyly Malik-Percin type (MSSD). Copy number variation of a locus containing this gene has been linked to a form of split-hand/foot malformation with long bone deficiency (SHFLD3). [provided by RefSeq, Mar 2015]

BHLHA9 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.74).

BP6

Variant 17-1270538-G-A is Benign according to our data. Variant chr17-1270538-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3340796.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BHLHA9	NM_001164405.2 link	c.-26G>A		5_prime_UTR_variant	Exon 1 of 1	ENST00000391429.2	NP_001157877.1	Q7RTU4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BHLHA9	ENST00000391429 link	c.-26G>A		5_prime_UTR_variant	Exon 1 of 1		NM_001164405.2	ENSP00000375248.1		Q7RTU4

Frequencies

GnomAD3 genomes

AF:

0.00346

AC:

526

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0122

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.00204

AC:

AN:

982

Hom.:

AF XY:

0.00207

AC XY:

AN XY:

484

show subpopulations

Gnomad AFR exome

AF:

0.0417

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000313

AC:

335

AN:

1069250

Hom.:

Cov.:

AF XY:

0.000288

AC XY:

147

AN XY:

510372

show subpopulations

Gnomad4 AFR exome

AF:

0.0140

Gnomad4 AMR exome

AF:

0.000473

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:

0.00000222

Gnomad4 OTH exome

AF:

0.000430

GnomAD4 genome

AF:

0.00346

AC:

527

AN:

152302

Hom.:

Cov.:

AF XY:

0.00344

AC XY:

256

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0122

Gnomad4 AMR

AF:

0.000980

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00208

Hom.:

Bravo

AF:

0.00376

Asia WGS

AF:

0.000578

AC:

AN:

3476

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Mar 14, 2020

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

See Variant Classification Assertion Criteria. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

DANN

Benign

0.87

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over