NM_023036.6:c.-22G>T

Variant names:

• chr17-74274335-G-T
• rs551715321
• NM_023036.6:c.-22G>T

Variant summary

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

The NM_023036.6(DNAI2):​c.-22G>T variant causes a 5 prime UTR 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.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNAI2 NM_023036.6 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0640
• 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: PanelApp Australia, Labcorp Genetics (formerly Invitae), ClinGen
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

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 (BayesDel_noAF=-0.76).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAI2	NM_023036.6	c.-22G>T		5_prime_UTR_variant	Exon 1 of 14	ENST00000311014.11	NP_075462.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAI2	ENST00000311014.11	c.-22G>T		5_prime_UTR_variant	Exon 1 of 14	1	NM_023036.6	ENSP00000308312.6
DNAI2	ENST00000582036.5	c.-19G>T		5_prime_UTR_variant	Exon 1 of 14	1		ENSP00000461950.1
DNAI2	ENST00000579055.5	n.-22G>T		non_coding_transcript_exon_variant	Exon 1 of 13	2		ENSP00000462767.1
DNAI2	ENST00000579055.5	n.-22G>T		5_prime_UTR_variant	Exon 1 of 13	2		ENSP00000462767.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.76
CADD	Benign	10
DANN	Benign	0.92
PhyloP100		0.064
PromoterAI		0.044	Neutral

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: rs551715321; hg19: chr17-72270474;