Variant 7-140459200-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_013446.4(MKRN1):c.578G>C(p.Gly193Ala) variant causes a missense 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. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MKRN1
NM_013446.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.77

Variant links:

Genes affected

MKRN1 (HGNC:7112): (makorin ring finger protein 1) This gene encodes a protein that belongs to a novel class of zinc finger proteins. The encoded protein functions as a transcriptional co-regulator, and as an E3 ubiquitin ligase that promotes the ubiquitination and proteasomal degradation of target proteins. The protein encoded by this gene is thought to regulate RNA polymerase II-catalyzed transcription. Substrates for this protein's E3 ubiquitin ligase activity include the capsid protein of the West Nile virus and the catalytic subunit of the telomerase ribonucleoprotein. This protein controls cell cycle arrest and apoptosis by regulating p21, a cell cycle regulator, and the tumor suppressor protein p53. Pseudogenes of this gene are present on chromosomes 1, 3, 9, 12 and 20, and on the X chromosome. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2014]

MKRN1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14148706).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MKRN1	NM_013446.4 linkuse as main transcript	c.578G>C	p.Gly193Ala	missense_variant	4/8	ENST00000255977.7	NP_038474.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MKRN1	ENST00000255977.7 linkuse as main transcript	c.578G>C	p.Gly193Ala	missense_variant	4/8	1	NM_013446.4	ENSP00000255977		Q9UHC7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

250956

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135648

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000137

AC:

AN:

1461658

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2024

The c.578G>C (p.G193A) alteration is located in exon 4 (coding exon 4) of the MKRN1 gene. This alteration results from a G to C substitution at nucleotide position 578, causing the glycine (G) at amino acid position 193 to be replaced by an alanine (A). 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

0.094

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.15

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.065

T;.;.;.;.;T

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.92

D;D;D;D;D;D

M_CAP

Benign

0.052

MetaRNN

Benign

0.14

T;T;T;T;T;T

MetaSVM

Uncertain

-0.013

MutationAssessor

Benign

1.9

L;.;L;.;.;.

MutationTaster

Benign

0.97

D;D;D;D;D

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.62

N;N;N;N;N;N

REVEL

Benign

0.070

Sift

Benign

0.96

T;T;T;T;T;D

Sift4G

Benign

0.28

T;T;T;T;T;T

Polyphen

0.94

P;.;.;.;.;.

Vest4

0.10

MutPred

0.16

Gain of glycosylation at T196 (P = 0.1011);.;Gain of glycosylation at T196 (P = 0.1011);.;.;.;

MVP

0.76

MPC

0.36

ClinPred

0.32

GERP RS

4.9

Varity_R

0.099

gMVP

0.38

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over