NM_006662.3:c.19C>G

Variant names:

• chr16-30700843-C-G
• rs775689955
• NM_006662.3:c.19C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006662.3(SRCAP):​c.19C>G​(p.Pro7Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P7S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SRCAP NM_006662.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.541
• Publications: 0 publications found

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: ClinGen, Orphanet, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.068326026).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006662.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SRCAP	NM_006662.3	MANE Select	c.19C>G	p.Pro7Ala	missense	Exon 3 of 34	NP_006653.2	Q6ZRS2-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SRCAP	ENST00000262518.9	TSL:2 MANE Select	c.19C>G	p.Pro7Ala	missense	Exon 3 of 34	ENSP00000262518.4	Q6ZRS2-1
	SRCAP	ENST00000411466.7	TSL:3	c.19C>G	p.Pro7Ala	missense	Exon 3 of 34	ENSP00000405186.3	C9J4U4
	SRCAP	ENST00000706321.1		c.19C>G	p.Pro7Ala	missense	Exon 3 of 34	ENSP00000516346.1	Q6ZRS2-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.057
BayesDel_addAF	Benign	-0.020	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	19
DANN	Benign	0.81
DEOGEN2	Benign	0.035	T
Eigen	Benign	-0.56
Eigen_PC	Benign	-0.40
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.068	T
MetaSVM	Benign	-0.67	T
MutationAssessor	Benign	1.0	L
PhyloP100		0.54
PrimateAI	Benign	0.48	T
PROVEAN	Pathogenic	-5.0	D
REVEL	Benign	0.22
Sift	Benign	0.039	D
Sift4G	Benign	0.071	T
Polyphen		0.043	B
Vest4		0.12
MutPred		0.099		Loss of glycosylation at P7 (P = 0.0082)
MVP		0.043
MPC		0.011
ClinPred		0.10	T
GERP RS		0.76
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.067
gMVP		0.18
Mutation Taster		=80/20	polymorphism

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

Other links and lift over

dbSNP: rs775689955; hg19: chr16-30712164;