16-23678994-G-T

Variant names:

• chr16-23678994-G-T
• rs765005937
• NM_005030.6:c.62G>T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_005030.6(PLK1):​c.62G>T​(p.Gly21Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000414 in 1,450,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: PLK1 NM_005030.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.40

Genes affected

PLK1 (HGNC:9077): (polo like kinase 1) The Ser/Thr protein kinase encoded by this gene belongs to the CDC5/Polo subfamily. It is highly expressed during mitosis and elevated levels are found in many different types of cancer. Depletion of this protein in cancer cells dramatically inhibited cell proliferation and induced apoptosis; hence, it is a target for cancer therapy. [provided by RefSeq, Sep 2015]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.18489021).
• BS2: High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLK1	NM_005030.6	c.62G>T	p.Gly21Val	missense_variant	Exon 1 of 10	ENST00000300093.9	NP_005021.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLK1	ENST00000300093.9	c.62G>T	p.Gly21Val	missense_variant	Exon 1 of 10	1	NM_005030.6	ENSP00000300093.4
PLK1	ENST00000562272.5	n.1339G>T		non_coding_transcript_exon_variant	Exon 1 of 9	2
PLK1	ENST00000564202.1	n.24G>T		non_coding_transcript_exon_variant	Exon 1 of 3	3
PLK1	ENST00000570220.5	n.62G>T		non_coding_transcript_exon_variant	Exon 1 of 3	3		ENSP00000460266.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000414 AC: 6 AN: 1450412 Hom.: 0 Cov.: 31 AF XY: 0.00000416 AC XY: 3 AN XY: 720526

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000361

Gnomad4 OTH exome AF: 0.0000335

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000469 Hom.: 0

ExAC AF: 0.00000839 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.62G>T (p.G21V) alteration is located in exon 1 (coding exon 1) of the PLK1 gene. This alteration results from a G to T substitution at nucleotide position 62, causing the glycine (G) at amino acid position 21 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.085
BayesDel_addAF	Uncertain	0.023	T
BayesDel_noAF	Benign	-0.21
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.29	T
Eigen	Benign	-0.32
Eigen_PC	Benign	-0.22
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.19	D
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-0.40	T
MutationAssessor	Benign	0.66	N
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	-0.35	N
REVEL	Benign	0.23
Sift	Uncertain	0.0080	D
Sift4G	Benign	0.17	T
Polyphen		0.020	B
Vest4		0.21
MutPred		0.27		Gain of sheet (P = 0.0125);
MVP		0.75
MPC		2.4
ClinPred		0.75	D
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.13
gMVP		0.40

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: rs765005937; hg19: chr16-23690315;