chr16-83981084-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_019065.3(NECAB2):​c.416C>A​(p.Thr139Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 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: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NECAB2
NM_019065.3 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.713
Variant links:
Genes affected
NECAB2 (HGNC:23746): (N-terminal EF-hand calcium binding protein 2) The protein encoded by this gene is a neuronal calcium-binding protein that binds to and modulates the function of at least two receptors, adenosine A(2A) receptor and metabotropic glutamate receptor type 5. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23242977).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NECAB2NM_019065.3 linkuse as main transcriptc.416C>A p.Thr139Asn missense_variant 5/13 ENST00000305202.9
NECAB2NM_001329748.1 linkuse as main transcriptc.416C>A p.Thr139Asn missense_variant 5/12
NECAB2NM_001329749.2 linkuse as main transcriptc.167C>A p.Thr56Asn missense_variant 4/12
NECAB2XM_047434240.1 linkuse as main transcriptc.167C>A p.Thr56Asn missense_variant 4/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NECAB2ENST00000305202.9 linkuse as main transcriptc.416C>A p.Thr139Asn missense_variant 5/131 NM_019065.3 P1Q7Z6G3-1
NECAB2ENST00000565691.5 linkuse as main transcriptc.167C>A p.Thr56Asn missense_variant 3/111 Q7Z6G3-2
NECAB2ENST00000566836.1 linkuse as main transcriptc.89C>A p.Thr30Asn missense_variant 3/75
NECAB2ENST00000681513.1 linkuse as main transcriptn.821C>A non_coding_transcript_exon_variant 5/13

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461884
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 submitterclinical testingAmbry GeneticsMay 08, 2024The c.416C>A (p.T139N) alteration is located in exon 5 (coding exon 5) of the NECAB2 gene. This alteration results from a C to A substitution at nucleotide position 416, causing the threonine (T) at amino acid position 139 to be replaced by an asparagine (N). 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
0.14
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.52
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.040
T;.;T
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Benign
0.50
N
LIST_S2
Uncertain
0.88
D;D;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.7
M;.;.
MutationTaster
Benign
0.98
D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-1.5
N;N;N
REVEL
Benign
0.10
Sift
Benign
0.17
T;T;T
Sift4G
Benign
0.22
T;T;T
Polyphen
1.0
D;.;.
Vest4
0.39
MutPred
0.18
Gain of relative solvent accessibility (P = 0.2363);.;.;
MVP
0.13
ClinPred
0.96
D
GERP RS
4.6
Varity_R
0.22
gMVP
0.49

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: chr16-84014689; API