NM_001256715.2:c.1252G>T

Variant names:

• chr19-55159436-C-A
• rs201231901
• NM_001256715.2:c.1252G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001256715.2(DNAAF3):​c.1252G>T​(p.Val418Leu) variant causes a missense 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. 16/22 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. V418M) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNAAF3 NM_001256715.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.778
• Publications: 0 publications found

Genes affected

DNAAF3 (HGNC:30492): (dynein axonemal assembly factor 3) The protein encoded by this gene is required for the assembly of axonemal inner and outer dynein arms and plays a role in assembling dynein complexes for transport into cilia. Defects in this gene are a cause of primary ciliary dyskinesia type 2 (CILD2). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

ENSG00000267110 (HGNC:):

DNAAF3-AS1 (HGNC:55292): (DNAAF3 antisense RNA 1)

ACMG classification

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=0.036154717).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001256715.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAAF3	NM_001256715.2	MANE Select	c.1252G>T	p.Val418Leu	missense	Exon 12 of 12	NP_001243644.1
	DNAAF3	NM_001256714.1		c.1453G>T	p.Val485Leu	missense	Exon 12 of 12	NP_001243643.1
	DNAAF3	NM_178837.4		c.1393G>T	p.Val465Leu	missense	Exon 12 of 12	NP_849159.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAAF3	ENST00000524407.7	TSL:1 MANE Select	c.1252G>T	p.Val418Leu	missense	Exon 12 of 12	ENSP00000432046.3
	DNAAF3	ENST00000455045.5	TSL:1	c.1090G>T	p.Val364Leu	missense	Exon 12 of 12	ENSP00000394343.1
	DNAAF3	ENST00000528412.5	TSL:1	n.*1040G>T		non_coding_transcript_exon	Exon 12 of 12	ENSP00000433826.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	2.4
DANN	Benign	0.80
DEOGEN2	Benign	0.00096	T
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.10	N
LIST_S2	Benign	0.34	T
M_CAP	Benign	0.0046	T
MetaRNN	Benign	0.036	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	-1.9	N
PhyloP100		-0.78
PrimateAI	Benign	0.39	T
PROVEAN	Benign	2.2	N
REVEL	Benign	0.12
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.0	B
Vest4		0.12
MutPred		0.32		Loss of MoRF binding (P = 0.1434)
MVP		0.055
MPC		0.22
ClinPred		0.094	T
GERP RS		-2.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.037
gMVP		0.37
Mutation Taster		=96/4	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

Other links and lift over

dbSNP: rs201231901; hg19: chr19-55670804;