rs1553278836

Variant names:

• chr1-193135531-T-TTA
• rs1553278836
• NM_024529.5:c.371-3_371-2dupTA

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_Moderate PM2

The NM_024529.5(CDC73):​c.371-3_371-2dupTA variant causes a splice acceptor, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CDC73 NM_024529.5 splice_acceptor, intron
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.40
• Publications: 0 publications found

Genes affected

CDC73 (HGNC:16783): (cell division cycle 73) This gene encodes a tumor suppressor that is involved in transcriptional and post-transcriptional control pathways. The protein is a component of the the PAF protein complex, which associates with the RNA polymerase II subunit POLR2A and with a histone methyltransferase complex. This protein appears to facilitate the association of 3' mRNA processing factors with actively-transcribed chromatin. Mutations in this gene have been linked to hyperparathyroidism-jaw tumor syndrome, familial isolated hyperparathyroidism, and parathyroid carcinoma. [provided by RefSeq, Jul 2009]

CDC73 Gene-Disease associations (from GenCC):

• hyperparathyroidism 2 with jaw tumors

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
• hyperparathyroidism 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• parathyroid gland carcinoma

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial isolated hyperparathyroidism

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000308280 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.03320802 fraction of the gene. Cryptic splice site detected, with MaxEntScore 7.4, offset of 0 (no position change), new splice context is: cttctctttcttttatatAGtca. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024529.5. 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
	CDC73	NM_024529.5	MANE Select	c.371-3_371-2dupTA		splice_acceptor intron	N/A	NP_078805.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDC73	ENST00000367435.5	TSL:1 MANE Select	c.371-6_371-5insTA		splice_region intron	N/A	ENSP00000356405.4	Q6P1J9
	CDC73	ENST00000958309.1		c.371-6_371-5insTA		splice_region intron	N/A	ENSP00000628368.1
	CDC73	ENST00000958310.1		c.371-6_371-5insTA		splice_region intron	N/A	ENSP00000628369.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Parathyroid carcinoma (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.4

Splicing

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

Other links and lift over

dbSNP: rs1553278836; hg19: chr1-193104661;