16-30700867-C-G

Variant summary

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

The NM_006662.3(SRCAP):ā€‹c.43C>Gā€‹(p.Leu15Val) 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 1,461,842 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 (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

SRCAP
NM_006662.3 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53
Variant links:
Genes affected
SRCAP (HGNC:16974): (Snf2 related CREBBP activator protein) This gene encodes the core catalytic component of the multiprotein chromatin-remodeling SRCAP complex. The encoded protein is an ATPase that is necessary for the incorporation of the histone variant H2A.Z into nucleosomes. It can function as a transcriptional activator in Notch-mediated, CREB-mediated and steroid receptor-mediated transcription. Mutations in this gene cause Floating-Harbor syndrome, a rare disorder characterized by short stature, language deficits and dysmorphic facial features. [provided by RefSeq, Feb 2012]

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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=0.19587582).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SRCAPNM_006662.3 linkc.43C>G p.Leu15Val missense_variant Exon 3 of 34 ENST00000262518.9 NP_006653.2 Q6ZRS2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SRCAPENST00000262518.9 linkc.43C>G p.Leu15Val missense_variant Exon 3 of 34 2 NM_006662.3 ENSP00000262518.4 Q6ZRS2-1
SRCAPENST00000411466.7 linkc.43C>G p.Leu15Val missense_variant Exon 3 of 34 3 ENSP00000405186.3 Q6ZRS2-1C9J4U4
SRCAPENST00000706321.1 linkc.43C>G p.Leu15Val missense_variant Exon 3 of 34 ENSP00000516346.1 Q6ZRS2-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000804
AC:
2
AN:
248864
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135076
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461842
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 15 of the SRCAP protein (p.Leu15Val). This variant is present in population databases (rs371783481, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with SRCAP-related conditions. ClinVar contains an entry for this variant (Variation ID: 1486146). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt SRCAP protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Uncertain
0.031
T
BayesDel_noAF
Benign
-0.10
CADD
Benign
18
DANN
Benign
0.90
DEOGEN2
Benign
0.033
.;T
Eigen
Uncertain
0.19
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.81
T;T
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.20
T;T
MetaSVM
Uncertain
-0.10
T
MutationAssessor
Benign
0.69
.;N
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-2.6
D;N
REVEL
Uncertain
0.34
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;T
Polyphen
0.99
.;D
Vest4
0.16
MutPred
0.26
Gain of catalytic residue at L15 (P = 0.0213);Gain of catalytic residue at L15 (P = 0.0213);
MVP
0.12
MPC
0.011
ClinPred
0.43
T
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.15
gMVP
0.33

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.

Other links and lift over

dbSNP: rs371783481; hg19: chr16-30712188; API