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GeneBe

4-17614716-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_025205.5(MED28):c.62C>G(p.Pro21Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000327 in 1,614,244 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00034 ( 1 hom. )

Consequence

MED28
NM_025205.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.22
Variant links:
Genes affected
MED28 (HGNC:24628): (mediator complex subunit 28) Predicted to enable actin binding activity. Predicted to act upstream of or within negative regulation of smooth muscle cell differentiation and stem cell population maintenance. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.050434113).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MED28NM_025205.5 linkuse as main transcriptc.62C>G p.Pro21Arg missense_variant 1/4 ENST00000237380.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MED28ENST00000237380.12 linkuse as main transcriptc.62C>G p.Pro21Arg missense_variant 1/41 NM_025205.5 P1
MED28ENST00000503945.2 linkuse as main transcriptc.53C>G p.Pro18Arg missense_variant, NMD_transcript_variant 1/61
MED28ENST00000506409.1 linkuse as main transcriptn.69C>G non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000244
AC:
61
AN:
249938
Hom.:
0
AF XY:
0.000273
AC XY:
37
AN XY:
135556
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000359
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000434
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000345
AC:
504
AN:
1461868
Hom.:
1
Cov.:
31
AF XY:
0.000360
AC XY:
262
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000220
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000419
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000158
AC:
24
AN:
152376
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000183
Hom.:
0
Bravo
AF:
0.000147
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000288
AC:
35
EpiCase
AF:
0.000164
EpiControl
AF:
0.000474

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 submitterclinical testingAmbry GeneticsMar 12, 2024The c.62C>G (p.P21R) alteration is located in exon 1 (coding exon 1) of the MED28 gene. This alteration results from a C to G substitution at nucleotide position 62, causing the proline (P) at amino acid position 21 to be replaced by an arginine (R). 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
0.14
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.47
Cadd
Benign
14
Dann
Benign
0.74
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.67
Eigen_PC
Benign
-0.61
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.0059
T
MetaRNN
Benign
0.050
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.97
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.45
N
REVEL
Benign
0.11
Sift
Benign
0.26
T
Sift4G
Benign
0.29
T
Polyphen
0.0
B
Vest4
0.22
MVP
0.47
MPC
0.048
ClinPred
0.048
T
GERP RS
4.6
Varity_R
0.11
gMVP
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs375191348; hg19: chr4-17616339; COSMIC: COSV105822440; COSMIC: COSV105822440; API