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chr16-83972160-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_019065.3(NECAB2):​c.211C>T​(p.Arg71Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000521 in 1,613,370 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R71S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

NECAB2
NM_019065.3 missense

Scores

10
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.74
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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.835

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NECAB2NM_019065.3 linkuse as main transcriptc.211C>T p.Arg71Cys missense_variant 2/13 ENST00000305202.9
NECAB2NM_001329748.1 linkuse as main transcriptc.211C>T p.Arg71Cys missense_variant 2/12
NECAB2NM_001329749.2 linkuse as main transcriptc.-13C>T 5_prime_UTR_variant 2/12
NECAB2XM_047434240.1 linkuse as main transcriptc.-13C>T 5_prime_UTR_variant 2/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NECAB2ENST00000305202.9 linkuse as main transcriptc.211C>T p.Arg71Cys missense_variant 2/131 NM_019065.3 P1Q7Z6G3-1
NECAB2ENST00000565691.5 linkuse as main transcriptc.-13C>T 5_prime_UTR_variant 1/111 Q7Z6G3-2
NECAB2ENST00000681513.1 linkuse as main transcriptn.616C>T non_coding_transcript_exon_variant 2/13

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152232
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000640
AC:
16
AN:
249832
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135558
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000981
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000541
AC:
79
AN:
1461138
Hom.:
0
Cov.:
31
AF XY:
0.0000578
AC XY:
42
AN XY:
726852
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000569
Gnomad4 NFE exome
AF:
0.0000540
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152232
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000453
ExAC
AF:
0.0000824
AC:
10

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 GeneticsApr 13, 2022The c.211C>T (p.R71C) alteration is located in exon 2 (coding exon 2) of the NECAB2 gene. This alteration results from a C to T substitution at nucleotide position 211, causing the arginine (R) at amino acid position 71 to be replaced by a cysteine (C). 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
Pathogenic
0.98
BayesDel_addAF
Uncertain
0.024
T
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Benign
0.71
D
LIST_S2
Uncertain
0.95
D
M_CAP
Pathogenic
0.47
D
MetaRNN
Pathogenic
0.84
D
MetaSVM
Uncertain
0.14
D
MutationAssessor
Pathogenic
2.9
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.94
D
PROVEAN
Pathogenic
-6.0
D
REVEL
Pathogenic
0.74
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.86
MutPred
0.68
Loss of disorder (P = 0.044);
MVP
0.60
ClinPred
0.77
D
GERP RS
3.5
Varity_R
0.70
gMVP
0.54

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs768200680; hg19: chr16-84005765; API