1-44806423-G-T

Variant names:

• chr1-44806423-G-T
• NM_001377534.1:c.246C>A
• DYNLT4 p.Gly82Gly

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001377534.1(DYNLT4):​c.246C>A​(p.Gly82Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G82G) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DYNLT4 NM_001377534.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.738
• Publications: 0 publications found

Genes affected

DYNLT4 (HGNC:32315): (dynein light chain Tctex-type 4) Enables protein phosphatase 1 binding activity. Predicted to be involved in microtubule-based movement. Located in acrosomal vesicle; cytoskeleton; and sperm flagellum. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BP7: Synonymous conserved (PhyloP=-0.738 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001377534.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DYNLT4	NM_001377534.1	MANE Select	c.246C>A	p.Gly82Gly	synonymous	Exon 3 of 3	NP_001364463.1	Q5JR98
	DYNLT4	NM_001013632.4		c.246C>A	p.Gly82Gly	synonymous	Exon 2 of 2	NP_001013654.1	Q5JR98
	DYNLT4	NM_001377535.1		c.246C>A	p.Gly82Gly	synonymous	Exon 3 of 3	NP_001364464.1	Q5JR98

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DYNLT4	ENST00000339355.3	TSL:6 MANE Select	c.246C>A	p.Gly82Gly	synonymous	Exon 3 of 3	ENSP00000341803.2	Q5JR98
	DYNLT4	ENST00000675259.1		c.246C>A	p.Gly82Gly	synonymous	Exon 2 of 2	ENSP00000501642.1	Q5JR98
	DYNLT4	ENST00000854447.1		c.246C>A	p.Gly82Gly	synonymous	Exon 3 of 3	ENSP00000524506.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1365222 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 673910

African (AFR) AF: 0.00 AC: 0 AN: 28516

American (AMR) AF: 0.00 AC: 0 AN: 30664

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23940

East Asian (EAS) AF: 0.00 AC: 0 AN: 34250

South Asian (SAS) AF: 0.00 AC: 0 AN: 76946

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 38408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4930

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1070998

Other (OTH) AF: 0.00 AC: 0 AN: 56570

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
CADD	Benign	2.7
DANN	Benign	0.77
PhyloP100		-0.74
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr1-45272095;