8-116852713-TAAAAA-TAAA

Variant names:

• chr8-116852713-TAA-T
• rs369816312
• NM_006265.3:c.1162-7_1162-6delTT

Variant summary

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

The NM_006265.3(RAD21):​c.1162-7_1162-6delTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000461 in 1,173,490 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000015 (0 hom., cov: 31)
  • Exomes 𝑓: 0.00052 (0 hom.)
• Consequence: RAD21 NM_006265.3 splice_region, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.189
• Publications: 3 publications found

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)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAD21	NM_006265.3	c.1162-7_1162-6delTT		splice_region_variant, intron_variant	Intron 9 of 13	ENST00000297338.7	NP_006256.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAD21	ENST00000297338.7	c.1162-7_1162-6delTT		splice_region_variant, intron_variant	Intron 9 of 13	1	NM_006265.3	ENSP00000297338.2

Frequencies

GnomAD3 genomes AF: 0.0000148 AC: 2 AN: 135298 Hom.: 0 Cov.: 31

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: 0.000265

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00155 AC: 135 AN: 87152 AF XY: 0.00178

Gnomad AFR exome AF: 0.00101

Gnomad AMR exome AF: 0.00158

Gnomad ASJ exome AF: 0.00369

Gnomad EAS exome AF: 0.00162

Gnomad FIN exome AF: 0.00125

Gnomad NFE exome AF: 0.00142

Gnomad OTH exome AF: 0.00121

GnomAD4 exome AF: 0.000519 AC: 539 AN: 1038192 Hom.: 0 AF XY: 0.000582 AC XY: 297 AN XY: 510516

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

African (AFR) AF: 0.000495 AC: 11 AN: 22212

American (AMR) AF: 0.00121 AC: 23 AN: 19030

Ashkenazi Jewish (ASJ) AF: 0.00137 AC: 23 AN: 16792

East Asian (EAS) AF: 0.000329 AC: 9 AN: 27344

South Asian (SAS) AF: 0.00170 AC: 74 AN: 43406

European-Finnish (FIN) AF: 0.000739 AC: 27 AN: 36550

Middle Eastern (MID) AF: 0.000255 AC: 1 AN: 3914

European-Non Finnish (NFE) AF: 0.000416 AC: 344 AN: 826594

Other (OTH) AF: 0.000638 AC: 27 AN: 42350

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.0000148 AC: 2 AN: 135298 Hom.: 0 Cov.: 31 AF XY: 0.0000307 AC XY: 2 AN XY: 65204

⚠️ 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: 37080

American (AMR) AF: 0.00 AC: 0 AN: 13474

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3238

East Asian (EAS) AF: 0.00 AC: 0 AN: 4722

South Asian (SAS) AF: 0.00 AC: 0 AN: 4266

European-Finnish (FIN) AF: 0.000265 AC: 2 AN: 7554

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 284

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 61954

Other (OTH) AF: 0.00 AC: 0 AN: 1872

⚠️ 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.: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.19
Mutation Taster		=100/0	polymorphism

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: rs369816312; hg19: chr8-117864952;