8-116856725-G-T

Variant names:

• chr8-116856725-G-T
• NM_006265.3:c.735C>A
• RAD21 p.Pro245Pro

Variant summary

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

The NM_006265.3(RAD21):​c.735C>A​(p.Pro245Pro) variant causes a synonymous 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. Synonymous variant affecting the same amino acid position (i.e. P245P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: RAD21 NM_006265.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0700
• Publications: 0 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: ClinGen, Orphanet
• Cornelia de Lange syndrome 4

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• Mungan syndrome

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

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=-0.47).

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.735C>A	p.Pro245Pro	synonymous	Exon 7 of 14	NP_006256.1	O60216

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD21	ENST00000297338.7	TSL:1 MANE Select	c.735C>A	p.Pro245Pro	synonymous	Exon 7 of 14	ENSP00000297338.2	O60216
	RAD21	ENST00000517749.2	TSL:1	c.735C>A	p.Pro245Pro	synonymous	Exon 7 of 14	ENSP00000430273.2	O60216
	RAD21	ENST00000517485.6	TSL:3	c.735C>A	p.Pro245Pro	synonymous	Exon 7 of 14	ENSP00000427923.2	O60216

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1421314 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 706580

African (AFR) AF: 0.00 AC: 0 AN: 31710

American (AMR) AF: 0.00 AC: 0 AN: 40236

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25210

East Asian (EAS) AF: 0.00 AC: 0 AN: 37760

South Asian (SAS) AF: 0.00 AC: 0 AN: 79540

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5650

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1090386

Other (OTH) AF: 0.00 AC: 0 AN: 58414

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.47
CADD	Benign	6.2
DANN	Benign	0.59
PhyloP100		-0.070
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr8-117868964;