8-116866762-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 8P and 16B. PVS1BP6_Very_StrongBS1BS2

The NM_006265.3(RAD21):c.-32-1G>A variant causes a splice acceptor, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00184 in 1,533,520 control chromosomes in the GnomAD database, including 3 homozygotes. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0019 ( 3 hom. )

Consequence

RAD21
NM_006265.3 splice_acceptor, intron

Scores

Splicing: ADA: 1.000

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.77

Publications

9 publications found

Variant links:

Genes affected

RAD21 (HGNC:9811): (RAD21 cohesin complex component) The protein encoded by this gene is highly similar to the gene product of Schizosaccharomyces pombe rad21, a gene involved in the repair of DNA double-strand breaks, as well as in chromatid cohesion during mitosis. This protein is a nuclear phospho-protein, which becomes hyperphosphorylated in cell cycle M phase. The highly regulated association of this protein with mitotic chromatin specifically at the centromere region suggests its role in sister chromatid cohesion in mitotic cells. [provided by RefSeq, Jul 2008]

RAD21 Gene-Disease associations (from GenCC):

Cornelia de Lange syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
Cornelia de Lange syndrome 4
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
Mungan syndrome
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

RAD21 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, Cryptic splice site detected, with MaxEntScore 8.2, offset of 1, new splice context is: cttttttttcccctcttaAGttt. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.

BP6

Variant 8-116866762-C-T is Benign according to our data. Variant chr8-116866762-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 445861.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00122 (186/151944) while in subpopulation NFE AF = 0.00215 (146/67944). AF 95% confidence interval is 0.00186. There are 0 homozygotes in GnomAd4. There are 84 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 186 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006265.3. 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
	RAD21	NM_006265.3	MANE Select	c.-32-1G>A		splice_acceptor intron	N/A	NP_006256.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
RAD21	ENST00000297338.7	TSL:1 MANE Select	c.-32-1G>A	splice_acceptor intron	N/A	ENSP00000297338.2
RAD21	ENST00000517749.2	TSL:1	c.-32-1G>A	splice_acceptor intron	N/A	ENSP00000430273.2
RAD21	ENST00000927340.1		c.-33G>A	5_prime_UTR	Exon 2 of 14	ENSP00000597399.1

Frequencies

GnomAD3 genomes

AF:

0.00123

AC:

186

AN:

151826

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000412

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000664

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00215

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00124

AC:

252

AN:

203292

AF XY:

0.00128

show subpopulations

Gnomad AFR exome

AF:

0.000296

Gnomad AMR exome

AF:

0.000274

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000670

Gnomad NFE exome

AF:

0.00222

Gnomad OTH exome

AF:

0.00197

GnomAD4 exome

AF:

0.00190

AC:

2630

AN:

1381576

Hom.:

Cov.:

AF XY:

0.00186

AC XY:

1268

AN XY:

682334

show subpopulations

African (AFR)

AF:

0.000229

AC:

AN:

30506

American (AMR)

AF:

0.000340

AC:

AN:

32326

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23636

East Asian (EAS)

AF:

0.00

AC:

AN:

37984

South Asian (SAS)

AF:

0.0000138

AC:

AN:

72612

European-Finnish (FIN)

AF:

0.000739

AC:

AN:

48728

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5438

European-Non Finnish (NFE)

AF:

0.00232

AC:

2489

AN:

1073504

Other (OTH)

AF:

0.00151

AC:

AN:

56842

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

116

231

347

462

578

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

196

294

392

490

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00122

AC:

186

AN:

151944

Hom.:

Cov.:

AF XY:

0.00113

AC XY:

AN XY:

74290

show subpopulations

African (AFR)

AF:

0.000410

AC:

AN:

41416

American (AMR)

AF:

0.00105

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.000664

AC:

AN:

10538

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00215

AC:

146

AN:

67944

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0124

Hom.:

2350

Bravo

AF:

0.00112

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

Mungan syndrome;C3553517:Cornelia de Lange syndrome 4 (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Uncertain

-0.070

CADD

Pathogenic

(source)

DANN

Benign

0.97

PhyloP100

1.8

Mutation Taster

=21/79

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.89

SpliceAI score (max)

1.0

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.84

Position offset: -2

DS_AL_spliceai

1.0

Position offset: -1

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over