rs2017698

Variant names:

• chr19-49834979-C-G
• rs2017698
• ENST00000594998.1:n.2096C>G

Your query was ambiguous. Multiple possible variants found:

• chr19-49834979-C-G
• chr19-49834979-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000594998.1(MED25):​n.2096C>G variant causes a non coding transcript exon 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MED25 ENST00000594998.1 non_coding_transcript_exon
• Scores: Splicing: ADA: 0.004621
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.121
• Publications: 0 publications found

Genes affected

MED25 (HGNC:28845): (mediator complex subunit 25) This gene encodes a component of the transcriptional coactivator complex termed the Mediator complex. This complex is required for transcription of most RNA polymerase II-dependent genes. The encoded protein plays a role in chromatin modification and in preinitiation complex assembly. Mutations in this gene are associated with Charcot-Marie-Tooth disease type 2B2. [provided by RefSeq, Apr 2010]

MED25 Gene-Disease associations (from GenCC):

• congenital cataract-microcephaly-nevus flammeus simplex-severe intellectual disability syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae)
• autosomal recessive non-syndromic intellectual disability

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Charcot-Marie-Tooth disease type 2B2

  Inheritance: AR Classification: SUPPORTIVE, NO_KNOWN Submitted by: Orphanet, ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED25	NM_030973.4	c.1483-7C>G		splice_region_variant, intron_variant	Intron 13 of 17	ENST00000312865.10	NP_112235.2
MED25	NM_001378355.1	c.1483-7C>G		splice_region_variant, intron_variant	Intron 13 of 17		NP_001365284.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MED25	ENST00000312865.10	c.1483-7C>G		splice_region_variant, intron_variant	Intron 13 of 17	1	NM_030973.4	ENSP00000326767.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	7.4
DANN	Benign	0.56
PhyloP100		-0.12
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0046
dbscSNV1_RF	Benign	0.088
SpliceAI score (max)		0.25		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.25		Position offset: -29

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

Other links and lift over

dbSNP: rs2017698; hg19: chr19-50338236;