14-73654843-A-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_031427.4(DNAL1):​c.4-4A>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00132 in 1,188,308 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0013 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

DNAL1
NM_031427.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00003782
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0200
Variant links:
Genes affected
DNAL1 (HGNC:23247): (dynein axonemal light chain 1) This gene encodes an axonemal dynein light chain which functions as a component of the outer dynein arms complex. This complex acts as the molecular motor that provides the force to move cilia in an ATP-dependent manner. The encoded protein is expressed in tissues with motile cilia or flagella and may be involved in the movement of sperm flagella. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jan 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 14-73654843-A-T is Benign according to our data. Variant chr14-73654843-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 414000.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.00132 (1574/1188308) while in subpopulation AMR AF= 0.00616 (115/18670). AF 95% confidence interval is 0.00525. There are 0 homozygotes in gnomad4_exome. There are 811 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNAL1NM_031427.4 linkc.4-4A>T splice_region_variant, intron_variant ENST00000553645.7 NP_113615.2 Q4LDG9-1
DNAL1NM_001201366.2 linkc.-114-4A>T splice_region_variant, intron_variant NP_001188295.1 Q4LDG9-3
DNAL1XM_017021679.3 linkc.-114-4A>T splice_region_variant, intron_variant XP_016877168.1 Q4LDG9-3
DNAL1XM_024449715.2 linkc.-114-4A>T splice_region_variant, intron_variant XP_024305483.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNAL1ENST00000553645.7 linkc.4-4A>T splice_region_variant, intron_variant 1 NM_031427.4 ENSP00000452037.1 Q4LDG9-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
3
AN:
148814
Hom.:
0
Cov.:
31
FAILED QC
Gnomad AFR
AF:
0.0000248
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000133
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00367
AC:
338
AN:
92032
Hom.:
0
AF XY:
0.00362
AC XY:
180
AN XY:
49670
show subpopulations
Gnomad AFR exome
AF:
0.00300
Gnomad AMR exome
AF:
0.00963
Gnomad ASJ exome
AF:
0.00177
Gnomad EAS exome
AF:
0.00598
Gnomad SAS exome
AF:
0.00313
Gnomad FIN exome
AF:
0.00261
Gnomad NFE exome
AF:
0.00260
Gnomad OTH exome
AF:
0.00429
GnomAD4 exome
AF:
0.00132
AC:
1574
AN:
1188308
Hom.:
0
Cov.:
33
AF XY:
0.00139
AC XY:
811
AN XY:
582942
show subpopulations
Gnomad4 AFR exome
AF:
0.00175
Gnomad4 AMR exome
AF:
0.00616
Gnomad4 ASJ exome
AF:
0.00250
Gnomad4 EAS exome
AF:
0.00321
Gnomad4 SAS exome
AF:
0.00362
Gnomad4 FIN exome
AF:
0.00259
Gnomad4 NFE exome
AF:
0.000934
Gnomad4 OTH exome
AF:
0.00182
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000201
AC:
3
AN:
148908
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
1
AN XY:
72566
show subpopulations
Gnomad4 AFR
AF:
0.0000247
Gnomad4 AMR
AF:
0.000133
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00436
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 16 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 06, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.45
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000038
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs576147534; hg19: chr14-74121546; COSMIC: COSV60726634; COSMIC: COSV60726634; API