Genetic Variant DRC7:p.Leu179Phe (chr16-57701966-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001289162.2(DRC7):c.535C>T(p.Leu179Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DRC7
NM_001289162.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.49

Variant links:

Genes affected

DRC7 (HGNC:25289): (dynein regulatory complex subunit 7) Predicted to be involved in flagellated sperm motility. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

DRC7 links:

ENSG00000260467 (HGNC:):

ENSG00000260467 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.839

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DRC7	NM_001289162.2 link	c.535C>T	p.Leu179Phe	missense_variant	Exon 6 of 19	ENST00000360716.8	NP_001276091.1	Q8IY82-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DRC7	ENST00000360716.8 link	c.535C>T	p.Leu179Phe	missense_variant	Exon 6 of 19	1	NM_001289162.2	ENSP00000353942.3		Q8IY82-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251168

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135716

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461850

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 17, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.535C>T (p.L179F) alteration is located in exon 5 (coding exon 4) of the DRC7 gene. This alteration results from a C to T substitution at nucleotide position 535, causing the leucine (L) at amino acid position 179 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Pathogenic

0.32

BayesDel_noAF

Pathogenic

0.22

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.;T

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.85

.;D;T

M_CAP

Uncertain

0.18

MetaRNN

Pathogenic

0.84

D;D;D

MetaSVM

Benign

-0.67

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-3.2

D;D;D

REVEL

Uncertain

0.43

Sift

Uncertain

0.0050

D;D;D

Sift4G

Uncertain

0.0090

D;D;D

Polyphen

1.0

D;.;D

Vest4

0.71

MutPred

0.72

Gain of catalytic residue at L179 (P = 0.003);.;Gain of catalytic residue at L179 (P = 0.003);

MVP

0.73

MPC

0.73

ClinPred

0.97

GERP RS

4.1

Varity_R

0.35

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

Details are displayed if max score is > 0.2

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