6-36683600-G-T

Position:

• chr6-36683600-G-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_000389.5(CDKN1A):​c.-5-497G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0193 in 152,306 control chromosomes in the GnomAD database, including 51 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.019 (51 hom., cov: 32)
• Consequence: CDKN1A NM_000389.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.352

Genes affected

CDKN1A (HGNC:1784): (cyclin dependent kinase inhibitor 1A) This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-cyclin-dependent kinase2 or -cyclin-dependent kinase4 complexes, and thus functions as a regulator of cell cycle progression at G1. The expression of this gene is tightly controlled by the tumor suppressor protein p53, through which this protein mediates the p53-dependent cell cycle G1 phase arrest in response to a variety of stress stimuli. This protein can interact with proliferating cell nuclear antigen, a DNA polymerase accessory factor, and plays a regulatory role in S phase DNA replication and DNA damage repair. This protein was reported to be specifically cleaved by CASP3-like caspases, which thus leads to a dramatic activation of cyclin-dependent kinase2, and may be instrumental in the execution of apoptosis following caspase activation. Mice that lack this gene have the ability to regenerate damaged or missing tissue. Multiple alternatively spliced variants have been found for this gene. [provided by RefSeq, Sep 2015]

CDKN1A (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0193 (2937/152306) while in subpopulation NFE AF= 0.0279 (1897/68016). AF 95% confidence interval is 0.0268. There are 51 homozygotes in gnomad4. There are 1446 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 2937 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDKN1A	NM_000389.5	c.-5-497G>T		intron_variant		ENST00000244741.10	NP_000380.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKN1A	ENST00000244741.10	c.-5-497G>T		intron_variant		1	NM_000389.5	ENSP00000244741.6

Frequencies

GnomAD3 genomes AF: 0.0193 AC: 2937 AN: 152188 Hom.: 51 Cov.: 32

Gnomad AFR AF: 0.00446

Gnomad AMI AF: 0.0110

Gnomad AMR AF: 0.0205

Gnomad ASJ AF: 0.103

Gnomad EAS AF: 0.000577

Gnomad SAS AF: 0.00704

Gnomad FIN AF: 0.00847

Gnomad MID AF: 0.0285

Gnomad NFE AF: 0.0279

Gnomad OTH AF: 0.0187

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0193 AC: 2937 AN: 152306 Hom.: 51 Cov.: 32 AF XY: 0.0194 AC XY: 1446 AN XY: 74474

Gnomad4 AFR AF: 0.00445

Gnomad4 AMR AF: 0.0205

Gnomad4 ASJ AF: 0.103

Gnomad4 EAS AF: 0.000578

Gnomad4 SAS AF: 0.00704

Gnomad4 FIN AF: 0.00847

Gnomad4 NFE AF: 0.0279

Gnomad4 OTH AF: 0.0185

Alfa AF: 0.0103 Hom.: 2

Bravo AF: 0.0195

Asia WGS AF: 0.00404 AC: 15 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	5.4
DANN	Benign	0.78

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

Publications

LitVar

Other links and lift over

dbSNP: rs3176349; hg19: chr6-36651377;