Variant 7-80745138-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_006379.5(SEMA3C):c.2012C>T(p.Thr671Met) variant causes a missense change. The variant allele was found at a frequency of 0.000103 in 1,613,868 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000090 ( 0 hom. )

Consequence

SEMA3C
NM_006379.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.16

Variant links:

Genes affected

SEMA3C (HGNC:10725): (semaphorin 3C) This gene encodes a secreted glycoprotein that belongs to the semaphorin class 3 family of neuronal guidance cues. The encoded protein contains an N-terminal sema domain, integrin and immunoglobulin-like domains, and a C-terminal basic domain. Homodimerization and proteolytic cleavage of the C-terminal propeptide are necessary for the function of the encoded protein. It binds a neuropilin co-receptor before forming a heterotrimeric complex with an associated plexin. An increase in the expression of this gene correlates with an increase in cancer cell invasion and adhesion. Naturally occurring mutations in this gene are associated with Hirschsprung disease. [provided by RefSeq, May 2017]

SEMA3C links:

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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=0.067619324).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SEMA3C	NM_006379.5 link	c.2012C>T	p.Thr671Met	missense_variant	18/18	ENST00000265361.8	NP_006370.1	Q99985-1
SEMA3C	NM_001350120.2 link	c.2066C>T	p.Thr689Met	missense_variant	18/18		NP_001337049.1
SEMA3C	NM_001350121.2 link	c.1838C>T	p.Thr613Met	missense_variant	19/19		NP_001337050.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SEMA3C	ENST00000265361.8 link	c.2012C>T	p.Thr671Met	missense_variant	18/18	1	NM_006379.5	ENSP00000265361.3		Q99985-1
SEMA3C	ENST00000419255.6 link	c.2012C>T	p.Thr671Met	missense_variant	18/18	2		ENSP00000411193.2		Q99985-1

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00164

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000147

AC:

AN:

251156

Hom.:

AF XY:

0.000125

AC XY:

AN XY:

135732

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000550

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000896

AC:

131

AN:

1461752

Hom.:

Cov.:

AF XY:

0.0000894

AC XY:

AN XY:

727184

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000403

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000881

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000237

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00164

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000893

Hom.:

Bravo

AF:

0.000215

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

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

Aug 12, 2024

The c.2012C>T (p.T671M) alteration is located in exon 18 (coding exon 17) of the SEMA3C gene. This alteration results from a C to T substitution at nucleotide position 2012, causing the threonine (T) at amino acid position 671 to be replaced by a methionine (M). 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

0.10

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.48

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.10

T;T

Eigen

Benign

-0.0019

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.82

.;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.068

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

L;L

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.31

N;N

REVEL

Benign

0.046

Sift

Benign

0.12

T;T

Sift4G

Benign

0.13

T;T

Polyphen

0.017

B;B

Vest4

0.12

MVP

0.45

MPC

0.15

ClinPred

0.038

GERP RS

4.7

Varity_R

0.073

gMVP

0.44

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