chr7-84999503-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001384900.1(SEMA3D):​c.2271G>T​(p.Lys757Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,826 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 (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

SEMA3D
NM_001384900.1 missense

Scores

1
9
9

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 1.33
Variant links:
Genes affected
SEMA3D (HGNC:10726): (semaphorin 3D) This gene encodes a member of the semaphorin III family of secreted signaling proteins that are involved in axon guidance during neuronal development. The encoded protein contains an N-terminal Sema domain, an immunoglobulin like domain and a C-terminal basic domain. The protein encoded by this gene binds neuropilin and plays an important role in cardiovascular development. [provided by RefSeq, Aug 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2865708).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SEMA3DNM_001384900.1 linkuse as main transcriptc.2271G>T p.Lys757Asn missense_variant 19/19 ENST00000284136.11 NP_001371829.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SEMA3DENST00000284136.11 linkuse as main transcriptc.2271G>T p.Lys757Asn missense_variant 19/195 NM_001384900.1 ENSP00000284136 P1
SEMA3DENST00000484038.1 linkuse as main transcriptn.1397G>T non_coding_transcript_exon_variant 10/101

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461826
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

SEMA3D-related disorder Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 30, 2024The SEMA3D c.2271G>T variant is predicted to result in the amino acid substitution p.Lys757Asn. To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.13
T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.0081
T
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Uncertain
2.1
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.17
Sift
Uncertain
0.0080
D
Sift4G
Benign
0.093
T
Polyphen
0.99
D
Vest4
0.30
MutPred
0.31
Gain of sheet (P = 0.0149);
MVP
0.63
MPC
0.64
ClinPred
0.97
D
GERP RS
5.0
Varity_R
0.42
gMVP
0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-84628819; API