5-116446834-T-C

Variant names:

• chr5-116446834-T-C
• rs1259435978
• NM_020796.5:c.2872A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020796.5(SEMA6A):​c.2872A>G​(p.Asn958Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. 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. N958H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: SEMA6A NM_020796.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.68
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19634849).

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.2872A>G	p.Asn958Asp	missense	Exon 19 of 19	NP_065847.1	Q9H2E6-1
	SEMA6A	NM_001300780.2		c.2923A>G	p.Asn975Asp	missense	Exon 20 of 20	NP_001287709.1	Q9H2E6-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEMA6A	ENST00000343348.11	TSL:1 MANE Select	c.2872A>G	p.Asn958Asp	missense	Exon 19 of 19	ENSP00000345512.6	Q9H2E6-1
	SEMA6A	ENST00000257414.12	TSL:1	c.2923A>G	p.Asn975Asp	missense	Exon 20 of 20	ENSP00000257414.8	Q9H2E6-2
	SEMA6A	ENST00000510263.5	TSL:1	c.2872A>G	p.Asn958Asp	missense	Exon 19 of 19	ENSP00000424388.1	Q9H2E6-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461690 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727126

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53394

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111864

Other (OTH) AF: 0.00 AC: 0 AN: 60372

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.024	T
Eigen	Benign	0.11
Eigen_PC	Benign	0.15
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.0091	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
PhyloP100		5.7
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.14
Sift	Benign	0.13	T
Sift4G	Benign	0.50	T
Polyphen		0.75	P
Vest4		0.39
MutPred		0.12		Loss of glycosylation at P960 (P = 0.0988)
MVP		0.36
MPC		0.48
ClinPred		0.64	D
GERP RS		2.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.26
Mutation Taster		=61/39	polymorphism

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

Other links and lift over

dbSNP: rs1259435978; hg19: chr5-115782530;