3-58008763-C-A

Variant names:

• chr3-58008763-C-A
• rs751371914
• NM_001457.4:c.199C>A

Variant summary

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

The NM_001457.4(FLNB):​c.199C>A​(p.His67Asn) 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 1,461,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. H67Y) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: FLNB NM_001457.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.95
• Publications: 0 publications found

Genes affected

FLNB (HGNC:3755): (filamin B) This gene encodes a member of the filamin family. The encoded protein interacts with glycoprotein Ib alpha as part of the process to repair vascular injuries. The platelet glycoprotein Ib complex includes glycoprotein Ib alpha, and it binds the actin cytoskeleton. Mutations in this gene have been found in several conditions: atelosteogenesis type 1 and type 3; boomerang dysplasia; autosomal dominant Larsen syndrome; and spondylocarpotarsal synostosis syndrome. Multiple alternatively spliced transcript variants that encode different protein isoforms have been described for this gene. [provided by RefSeq, Nov 2009]

FLNB Gene-Disease associations (from GenCC):

• atelosteogenesis type I

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
• atelosteogenesis type III

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• Larsen syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
• spondylocarpotarsal synostosis syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
• Boomerang dysplasia

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

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=0.25884205).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001457.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNB	NM_001457.4	MANE Select	c.199C>A	p.His67Asn	missense	Exon 1 of 46	NP_001448.2
	FLNB	NM_001164317.2		c.199C>A	p.His67Asn	missense	Exon 1 of 47	NP_001157789.1
	FLNB	NM_001164318.2		c.199C>A	p.His67Asn	missense	Exon 1 of 46	NP_001157790.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNB	ENST00000295956.9	TSL:1 MANE Select	c.199C>A	p.His67Asn	missense	Exon 1 of 46	ENSP00000295956.5
	FLNB	ENST00000490882.5	TSL:1	c.199C>A	p.His67Asn	missense	Exon 1 of 47	ENSP00000420213.1
	FLNB	ENST00000429972.6	TSL:1	c.199C>A	p.His67Asn	missense	Exon 1 of 46	ENSP00000415599.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251338 AF XY: 0.00000736

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: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461680 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727114

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53354

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111896

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000936 Hom.: 0

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.040	T
BayesDel_noAF	Benign	-0.18
CADD	Uncertain	25
DANN	Benign	0.97
DEOGEN2	Uncertain	0.50	T
Eigen	Benign	0.020
Eigen_PC	Benign	0.21
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.87	D
M_CAP	Uncertain	0.14	D
MetaRNN	Benign	0.26	T
MetaSVM	Uncertain	0.29	D
MutationAssessor	Benign	-0.98	N
PhyloP100		3.0
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	-0.73	N
REVEL	Uncertain	0.48
Sift	Benign	0.61	T
Sift4G	Benign	1.0	T
Polyphen		1.0	D
Vest4		0.26
MutPred		0.52		Loss of glycosylation at P70 (P = 0.0359)
MVP		0.94
MPC		1.3
ClinPred		0.50	D
GERP RS		5.5
PromoterAI		0.12	Neutral
Varity_R		0.53
gMVP		0.60
Mutation Taster		=64/36	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: rs751371914; hg19: chr3-57994490;