chr16-30700835-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_006662.3(SRCAP):​c.11G>A​(p.Ser4Asn) 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 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict 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

SRCAP
NM_006662.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.66
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SRCAP. . Gene score misZ 2.1272 (greater than the threshold 3.09). Trascript score misZ 3.6253 (greater than threshold 3.09). GenCC has associacion of gene with developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities, Floating-Harbor syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.14207128).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SRCAPNM_006662.3 linkuse as main transcriptc.11G>A p.Ser4Asn missense_variant 3/34 ENST00000262518.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SRCAPENST00000262518.9 linkuse as main transcriptc.11G>A p.Ser4Asn missense_variant 3/342 NM_006662.3 P1Q6ZRS2-1
SRCAPENST00000411466.7 linkuse as main transcriptc.11G>A p.Ser4Asn missense_variant 3/343 P1Q6ZRS2-1
SRCAPENST00000706321.1 linkuse as main transcriptc.11G>A p.Ser4Asn missense_variant 3/34 P1Q6ZRS2-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461802
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
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 provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxDec 16, 2021Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Benign
-0.032
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
24
DANN
Benign
0.88
DEOGEN2
Benign
0.039
.;T
Eigen
Benign
-0.094
Eigen_PC
Benign
0.12
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.78
T;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.14
T;T
MetaSVM
Uncertain
-0.045
T
MutationAssessor
Benign
1.0
.;L
MutationTaster
Benign
0.75
N;N;N
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-2.8
D;N
REVEL
Uncertain
0.32
Sift
Uncertain
0.010
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.046
.;B
Vest4
0.18
MutPred
0.10
Loss of phosphorylation at S4 (P = 0.0128);Loss of phosphorylation at S4 (P = 0.0128);
MVP
0.28
MPC
0.011
ClinPred
0.34
T
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.32
gMVP
0.29

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: chr16-30712156; API