Genetic Variant SEMA4C:p.Pro576Arg (chr2-96861401-G-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_017789.5(SEMA4C):c.1727C>G(p.Pro576Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000532 in 1,610,306 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: 𝑓 0.00033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00055 ( 0 hom. )

Consequence

SEMA4C
NM_017789.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.44

Publications

3 publications found

Variant links:

Genes affected

SEMA4C (HGNC:10731): (semaphorin 4C) Predicted to enable chemorepellent activity and semaphorin receptor binding activity. Involved in muscle cell differentiation and positive regulation of stress-activated MAPK cascade. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

SEMA4C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.3822019).

BS2

High AC in GnomAd4 at 50 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SEMA4C	NM_017789.5 link	c.1727C>G	p.Pro576Arg	missense_variant	Exon 15 of 15	ENST00000305476.10	NP_060259.4	Q9C0C4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SEMA4C	ENST00000305476.10 link	c.1727C>G	p.Pro576Arg	missense_variant	Exon 15 of 15	1	NM_017789.5	ENSP00000306844.5	Q9C0C4
SEMA4C	ENST00000467747.1 link	n.1718C>G		non_coding_transcript_exon_variant	Exon 3 of 3	2
SEMA4C	ENST00000474420.1 link	n.960C>G		non_coding_transcript_exon_variant	Exon 2 of 2	2
SEMA4C	ENST00000482925.5 link	n.2117C>G		non_coding_transcript_exon_variant	Exon 13 of 13	2

Frequencies

GnomAD3 genomes

AF:

0.000329

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000588

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000586

AC:

144

AN:

245704

AF XY:

0.000500

show subpopulations

Gnomad AFR exome

AF:

0.000193

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000260

Gnomad NFE exome

AF:

0.00117

Gnomad OTH exome

AF:

0.000828

GnomAD4 exome

AF:

0.000553

AC:

807

AN:

1458142

Hom.:

Cov.:

AF XY:

0.000540

AC XY:

392

AN XY:

725540

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33478

American (AMR)

AF:

0.0000224

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.000301

AC:

AN:

49770

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000685

AC:

762

AN:

1111972

Other (OTH)

AF:

0.000464

AC:

AN:

60346

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

116

174

232

290

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000329

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.000377

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000588

AC:

AN:

68020

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000624

Hom.:

Bravo

AF:

0.000280

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000594

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.00113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 07, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1727C>G (p.P576R) alteration is located in exon 15 (coding exon 14) of the SEMA4C gene. This alteration results from a C to G substitution at nucleotide position 1727, causing the proline (P) at amino acid position 576 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

Uncertain

0.34

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.022

MetaRNN

Benign

0.38

MetaSVM

Benign

-1.2

MutationAssessor

Uncertain

2.0

PhyloP100

9.4

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.27

Sift

Benign

0.073

Sift4G

Benign

0.31

Polyphen

0.99

Vest4

0.55

MVP

0.25

MPC

0.98

ClinPred

0.091

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.33

gMVP

0.78

Mutation Taster

=73/27

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over