NM_001110556.2:c.4368C>G

Variant names:

• chrX-154359090-G-C
• rs782080545
• NM_001110556.2:c.4368C>G

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_Strong BP7 BS2

The NM_001110556.2(FLNA):​c.4368C>G​(p.Pro1456Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000456 in 1,096,778 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P1456P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 24)
  • Exomes 𝑓: 0.0000046 (0 hom. 2 hem.)
• Consequence: FLNA NM_001110556.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.64
• Publications: 1 publications found

Genes affected

FLNA (HGNC:3754): (filamin A) The protein encoded by this gene is an actin-binding protein that crosslinks actin filaments and links actin filaments to membrane glycoproteins. The encoded protein is involved in remodeling the cytoskeleton to effect changes in cell shape and migration. This protein interacts with integrins, transmembrane receptor complexes, and second messengers. Defects in this gene are a cause of several syndromes, including periventricular nodular heterotopias (PVNH1, PVNH4), otopalatodigital syndromes (OPD1, OPD2), frontometaphyseal dysplasia (FMD), Melnick-Needles syndrome (MNS), and X-linked congenital idiopathic intestinal pseudoobstruction (CIIPX). Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2009]

FLNA Gene-Disease associations (from GenCC):

• periventricular nodular heterotopia

  Inheritance: AD, XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• frontometaphyseal dysplasia 1

  Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
• genetic developmental and epileptic encephalopathy

  Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
• heterotopia, periventricular, X-linked dominant

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae), G2P
• intestinal pseudoobstruction, neuronal, chronic idiopathic, X-linked

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Melnick-Needles syndrome

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
• otopalatodigital syndrome type 2

  Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P
• terminal osseous dysplasia-pigmentary defects syndrome

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
• cardiac valvular dysplasia, X-linked

  Inheritance: XL Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• frontometaphyseal dysplasia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital short bowel syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• otopalatodigital syndrome type 1

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• X-linked Ehlers-Danlos syndrome

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• familial thoracic aortic aneurysm and aortic dissection

  Inheritance: Unknown Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BP7: Synonymous conserved (PhyloP=-1.64 with no splicing effect.
• BS2: High Hemizygotes in GnomAdExome4 at 2 XL,AD,AR,Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001110556.2. 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
	FLNA	NM_001110556.2	MANE Select	c.4368C>G	p.Pro1456Pro	synonymous	Exon 26 of 48	NP_001104026.1	P21333-1
	FLNA	NM_001456.4		c.4368C>G	p.Pro1456Pro	synonymous	Exon 26 of 47	NP_001447.2	P21333-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNA	ENST00000369850.10	TSL:1 MANE Select	c.4368C>G	p.Pro1456Pro	synonymous	Exon 26 of 48	ENSP00000358866.3	P21333-1
	FLNA	ENST00000360319.9	TSL:1	c.4368C>G	p.Pro1456Pro	synonymous	Exon 25 of 46	ENSP00000353467.4	P21333-2
	FLNA	ENST00000369856.8	TSL:1	c.4287C>G	p.Pro1429Pro	synonymous	Exon 25 of 47	ENSP00000358872.4	Q60FE5

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD2 exomes AF: 0.0000165 AC: 3 AN: 181666 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000730

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000123

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000456 AC: 5 AN: 1096778 Hom.: 0 Cov.: 33 AF XY: 0.00000552 AC XY: 2 AN XY: 362610

African (AFR) AF: 0.00 AC: 0 AN: 26394

American (AMR) AF: 0.0000568 AC: 2 AN: 35205

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19383

East Asian (EAS) AF: 0.00 AC: 0 AN: 30202

South Asian (SAS) AF: 0.00 AC: 0 AN: 54132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 39806

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4136

European-Non Finnish (NFE) AF: 0.00000357 AC: 3 AN: 841459

Other (OTH) AF: 0.00 AC: 0 AN: 46061

GnomAD4 genome Cov.: 24

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	2.0
DANN	Benign	0.57
PhyloP100		-1.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs782080545; hg19: chrX-153587458;