NM_001270974.2:c.6917A>T

Variant names:

• chr16-70938692-T-A
• rs2502726
• NM_001270974.2:c.6917A>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001270974.2(HYDIN):​c.6917A>T​(p.Glu2306Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. E2306G) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: HYDIN NM_001270974.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.29
• Publications: 25 publications found

Genes affected

HYDIN (HGNC:19368): (HYDIN axonemal central pair apparatus protein) This gene encodes a protein that may be involved in cilia motility. Mutations in this gene cause of autosomal recessive primary ciliary dyskinesia-5, a disorder characterized by the accumulation of cerebrospinal fluid within the ventricles of the brain. A duplicate copy of this gene has been found in humans on chromosome 1. [provided by RefSeq, Jan 2013]

HYDIN Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 5

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, ClinGen, G2P
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HYDIN	NM_001270974.2	c.6917A>T	p.Glu2306Val	missense_variant	Exon 44 of 86	ENST00000393567.7	NP_001257903.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HYDIN	ENST00000393567.7	c.6917A>T	p.Glu2306Val	missense_variant	Exon 44 of 86	5	NM_001270974.2	ENSP00000377197.2
HYDIN	ENST00000309900.11	n.1437A>T		non_coding_transcript_exon_variant	Exon 9 of 20	1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1461202 Hom.: 0 Cov.: 38 AF XY: 0.00 AC XY: 0 AN XY: 726932

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53280

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111536

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 51152

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.53
BayesDel_addAF	Benign	-0.017	T
BayesDel_noAF	Benign	-0.26
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.97	D
M_CAP	Benign	0.053	D
MetaRNN	Uncertain	0.54	D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		6.3
PrimateAI	Uncertain	0.58	T
PROVEAN	Pathogenic	-5.7	D
REVEL	Benign	0.28
Sift	Uncertain	0.0020	D
Vest4		0.57
MutPred		0.10		Loss of helix (P = 0.1706);
MVP		0.34
ClinPred		1.0	D
GERP RS		5.6
Varity_R		0.39
gMVP		0.35
Mutation Taster		=95/5	polymorphism

Splicing

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

Other links and lift over

dbSNP: rs2502726; hg19: chr16-70972595;