rs779992354

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_006662.3(SRCAP):c.8455A>G(p.Thr2819Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000033 in 1,604,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T2819I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

SRCAP
NM_006662.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 1.83

Publications

0 publications found

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]

SRCAP Gene-Disease associations (from GenCC):

developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
Floating-Harbor syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)

SRCAP links:

ENSG00000282034 (HGNC:):

ENSG00000282034 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09944704).

BP6

Variant 16-30738495-A-G is Benign according to our data. Variant chr16-30738495-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 436857.

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SRCAP	NM_006662.3 link	c.8455A>G	p.Thr2819Ala	missense_variant	Exon 34 of 34	ENST00000262518.9	NP_006653.2	Q6ZRS2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SRCAP	ENST00000262518.9 link	c.8455A>G	p.Thr2819Ala	missense_variant	Exon 34 of 34	2	NM_006662.3	ENSP00000262518.4		Q6ZRS2-1
ENSG00000282034	ENST00000380361.7 link	n.7924A>G		non_coding_transcript_exon_variant	Exon 29 of 31	2		ENSP00000369719.3		A0A0C4DFX4

Frequencies

GnomAD3 genomes

AF:

0.0000397

AC:

AN:

151252

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000885

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000165

AC:

AN:

242992

AF XY:

0.00000761

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000273

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.0000323

AC:

AN:

1453310

Hom.:

Cov.:

AF XY:

0.0000277

AC XY:

AN XY:

722730

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33170

American (AMR)

AF:

0.00

AC:

AN:

43340

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25492

East Asian (EAS)

AF:

0.00

AC:

AN:

39656

South Asian (SAS)

AF:

0.00

AC:

AN:

85144

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53080

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5710

European-Non Finnish (NFE)

AF:

0.0000406

AC:

AN:

1107738

Other (OTH)

AF:

0.0000333

AC:

AN:

59980

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000397

AC:

AN:

151252

Hom.:

Cov.:

AF XY:

0.0000271

AC XY:

AN XY:

73816

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41064

American (AMR)

AF:

0.00

AC:

AN:

15212

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5140

South Asian (SAS)

AF:

0.00

AC:

AN:

4782

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10506

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000885

AC:

AN:

67784

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Floating-Harbor syndrome;C5562012:Developmental delay, hypotonia, musculoskeletal defects, and behavioral abnormalities

Uncertain:1

May 11, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1

Jul 14, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SRCAP protein function. ClinVar contains an entry for this variant (Variation ID: 436857). This variant has not been reported in the literature in individuals affected with SRCAP-related conditions. This variant is present in population databases (rs779992354, gnomAD 0.003%). This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 2819 of the SRCAP protein (p.Thr2819Ala). -

not specified

Benign:1

Jan 28, 2016

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.096

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Benign

0.045

T;T

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.33

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.56

T;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.099

T;T

MetaSVM

Benign

-0.52

MutationAssessor

Benign

0.90

L;.

PhyloP100

1.8

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.7

N;.

REVEL

Benign

0.21

Sift

Uncertain

0.016

D;.

Sift4G

Benign

0.37

T;T

Polyphen

0.0

B;.

Vest4

0.22

MutPred

0.17

Loss of glycosylation at T2819 (P = 0.004);.;

MVP

0.32

MPC

0.17

ClinPred

0.026

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.067

gMVP

0.17

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over