7-21901002-C-T

Variant names:

• chr7-21901002-C-T
• rs1485395412
• NM_018719.5:c.*1320G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_001277115.2(DNAH11):​c.13304-5C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000127 in 1,578,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: DNAH11 NM_001277115.2 splice_region, intron
• Scores: Splicing: ADA: 0.00005694
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.917
• Publications: 0 publications found

Genes affected

CDCA7L (HGNC:30777): (cell division cycle associated 7 like) Acts upstream of or within positive regulation of cell population proliferation. Located in cytosol; fibrillar center; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

DNAH11 (HGNC:2942): (dynein axonemal heavy chain 11) This gene encodes a ciliary outer dynein arm protein and is a member of the dynein heavy chain family. It is a microtubule-dependent motor ATPase and has been reported to be involved in the movement of respiratory cilia. Mutations in this gene have been implicated in causing Kartagener Syndrome (a combination of situs inversus totalis and Primary Ciliary Dyskinesia (PCD), also called Immotile Cilia Syndrome 1 (ICS1)) and male sterility. [provided by RefSeq, Mar 2013]

DNAH11 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 7

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

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP6: Variant 7-21901002-C-T is Benign according to our data. Variant chr7-21901002-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2888264.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001277115.2. 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
	CDCA7L	NM_018719.5	MANE Select	c.*1320G>A		3_prime_UTR	Exon 10 of 10	NP_061189.2
	DNAH11	NM_001277115.2	MANE Select	c.13304-5C>T		splice_region intron	N/A	NP_001264044.1	Q96DT5
	CDCA7L	NM_001127370.3		c.*1320G>A		3_prime_UTR	Exon 11 of 11	NP_001120842.1	Q96GN5-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDCA7L	ENST00000406877.8	TSL:1 MANE Select	c.*1320G>A		3_prime_UTR	Exon 10 of 10	ENSP00000383986.3	Q96GN5-1
	DNAH11	ENST00000409508.8	TSL:5 MANE Select	c.13304-5C>T		splice_region intron	N/A	ENSP00000475939.1	Q96DT5
	CDCA7L	ENST00000934293.1		c.*1320G>A		3_prime_UTR	Exon 10 of 10	ENSP00000604352.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152128 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000445 AC: 1 AN: 224752 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000590

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 7.01e-7 AC: 1 AN: 1426198 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 706474

African (AFR) AF: 0.00 AC: 0 AN: 31940

American (AMR) AF: 0.00 AC: 0 AN: 38378

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24166

East Asian (EAS) AF: 0.0000255 AC: 1 AN: 39214

South Asian (SAS) AF: 0.00 AC: 0 AN: 80508

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52650

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5568

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1095048

Other (OTH) AF: 0.00 AC: 0 AN: 58726

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152128 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74318

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41386

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10612

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Primary ciliary dyskinesia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	0.067
DANN	Benign	0.78
PhyloP100		-0.92

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000057
dbscSNV1_RF	Benign	0.0
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: rs1485395412; hg19: chr7-21940620;