Genetic Variant S100A5:p.Asp64Asn (chr1-153537385-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001394232.1(S100A5):c.190G>A(p.Asp64Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000133 in 1,614,166 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. D64V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

S100A5
NM_001394232.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.29

Variant links:

Genes affected

S100A5 (HGNC:10495): (S100 calcium binding protein A5) The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21. This protein has a Ca2+ affinity 20- to 100-fold higher than the other S100 proteins studied under identical conditions. This protein also binds Zn2+ and Cu2+, and Cu2+ strongly which impairs the binding of Ca2+. This protein is expressed in very restricted regions of the adult brain. [provided by RefSeq, Jul 2008]

S100A5 links:

LOC124904423 (HGNC:):

LOC124904423 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
S100A5	NM_001394232.1 link	c.190G>A	p.Asp64Asn	missense_variant	Exon 3 of 3	ENST00000368717.3	NP_001381161.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
S100A5	ENST00000368717.3 link	c.190G>A	p.Asp64Asn	missense_variant	Exon 3 of 3	3	NM_001394232.1	ENSP00000357706.2		P33763-1
S100A5	ENST00000368718.5 link	c.190G>A	p.Asp64Asn	missense_variant	Exon 4 of 4	1		ENSP00000357707.1		P33763-1

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000235

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000115

AC:

AN:

251422

Hom.:

AF XY:

0.000140

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000127

AC:

185

AN:

1461858

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000447

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:

0.000141

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000190

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.000313

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000235

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000146

Hom.:

Bravo

AF:

0.000242

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000988

AC:

EpiCase

AF:

0.000654

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.190G>A (p.D64N) alteration is located in exon 4 (coding exon 2) of the S100A5 gene. This alteration results from a G to A substitution at nucleotide position 190, causing the aspartic acid (D) at amino acid position 64 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

Uncertain

0.49

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.44

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

T;T

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.97

.;D

M_CAP

Benign

0.048

MetaRNN

Uncertain

0.59

D;D

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-4.7

D;D

REVEL

Uncertain

0.31

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.013

D;D

Vest4

0.81

MVP

0.64

MPC

0.066

ClinPred

0.48

GERP RS

4.4

Varity_R

0.81

gMVP

0.61

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over