Genetic Variant NM_020796.5:c.2632C>T (chr5-116447074-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020796.5(SEMA6A):c.2632C>T(p.Pro878Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,696 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P878T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SEMA6A
NM_020796.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.54

Publications

0 publications found

Variant links:

Genes affected

SEMA6A (HGNC:10738): (semaphorin 6A) Predicted to enable identical protein binding activity; signaling receptor binding activity; and transmembrane signaling receptor activity. Involved in cellular response to vascular endothelial growth factor stimulus; negative regulation of cell adhesion involved in sprouting angiogenesis; and negative regulation of signal transduction. Predicted to be integral component of membrane. Predicted to be active in extracellular space. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SEMA6A links:

SEMA6A-AS1 (HGNC:51110): (SEMA6A antisense RNA 1)

SEMA6A-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020796.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEMA6A	NM_020796.5	MANE Select	c.2632C>T	p.Pro878Ser	missense	Exon 19 of 19	NP_065847.1	Q9H2E6-1
	SEMA6A	NM_001300780.2		c.2683C>T	p.Pro895Ser	missense	Exon 20 of 20	NP_001287709.1	Q9H2E6-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SEMA6A	ENST00000343348.11	TSL:1 MANE Select	c.2632C>T	p.Pro878Ser	missense	Exon 19 of 19	ENSP00000345512.6	Q9H2E6-1
SEMA6A	ENST00000257414.12	TSL:1	c.2683C>T	p.Pro895Ser	missense	Exon 20 of 20	ENSP00000257414.8	Q9H2E6-2
SEMA6A	ENST00000510263.5	TSL:1	c.2632C>T	p.Pro878Ser	missense	Exon 19 of 19	ENSP00000424388.1	Q9H2E6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249182

AF XY:

0.00000740

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461696

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727126

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111858

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.00000827

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.58

BayesDel_addAF

Benign

-0.010

BayesDel_noAF

Benign

-0.16

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.16

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.062

MetaRNN

Uncertain

0.56

MetaSVM

Benign

-0.40

PhyloP100

9.5

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-4.0

REVEL

Uncertain

0.37

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.018

Polyphen

1.0

Vest4

0.63

MutPred

0.34

Loss of catalytic residue at P878 (P = 0.0045)

MVP

0.37

MPC

0.78

ClinPred

0.97

GERP RS

5.2

gMVP

0.52

Mutation Taster

=23/77

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over