chr17-74285114-C-T

Variant names:

• chr17-74285114-C-T
• rs886038678
• NM_023036.6:c.258C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_023036.6(DNAI2):​c.258C>T​(p.Asn86Asn) 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. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNAI2 NM_023036.6 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.38
• Publications: 0 publications found

Genes affected

DNAI2 (HGNC:18744): (dynein axonemal intermediate chain 2) The protein encoded by this gene belongs to the dynein intermediate chain family, and is part of the dynein complex of respiratory cilia and sperm flagella. Mutations in this gene are associated with primary ciliary dyskinesia type 9. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Mar 2010]

DNAI2 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 9

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

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=-0.45).
• BP6: Variant 17-74285114-C-T is Benign according to our data. Variant chr17-74285114-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 261647.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.38 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_023036.6. 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
	DNAI2	NM_023036.6	MANE Select	c.258C>T	p.Asn86Asn	synonymous	Exon 3 of 14	NP_075462.3	Q9GZS0-1
	DNAI2	NM_001353167.2		c.258C>T	p.Asn86Asn	synonymous	Exon 3 of 15	NP_001340096.1
	DNAI2	NM_001172810.3		c.258C>T	p.Asn86Asn	synonymous	Exon 3 of 14	NP_001166281.1	Q9GZS0-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAI2	ENST00000311014.11	TSL:1 MANE Select	c.258C>T	p.Asn86Asn	synonymous	Exon 3 of 14	ENSP00000308312.6	Q9GZS0-1
	DNAI2	ENST00000579490.5	TSL:1	c.429C>T	p.Asn143Asn	synonymous	Exon 2 of 13	ENSP00000464197.1	J3QRG2
	DNAI2	ENST00000446837.2	TSL:1	c.258C>T	p.Asn86Asn	synonymous	Exon 2 of 13	ENSP00000400252.2	Q9GZS0-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	10
DANN	Benign	0.93
PhyloP100		1.4

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs886038678; hg19: chr17-72281253;