chr1-15768609-G-T

Variant names:

• chr1-15768609-G-T
• rs75390903
• NM_017556.4:c.520G>T

Variant summary

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

The NM_017556.4(FBLIM1):​c.520G>T​(p.Val174Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,459,738 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. V174I) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: FBLIM1 NM_017556.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.344
• Publications: 2 publications found

Genes affected

FBLIM1 (HGNC:24686): (filamin binding LIM protein 1) This gene encodes a protein with an N-terminal filamin-binding domain, a central proline-rich domain, and, multiple C-terminal LIM domains. This protein localizes at cell junctions and may link cell adhesion structures to the actin cytoskeleton. This protein may be involved in the assembly and stabilization of actin-filaments and likely plays a role in modulating cell adhesion, cell morphology and cell motility. This protein also localizes to the nucleus and may affect cardiomyocyte differentiation after binding with the CSX/NKX2-5 transcription factor. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

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=0.13604143).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017556.4. 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
	FBLIM1	NM_017556.4	MANE Select	c.520G>T	p.Val174Phe	missense	Exon 5 of 9	NP_060026.2	Q8WUP2-1
	FBLIM1	NM_001024215.1		c.520G>T	p.Val174Phe	missense	Exon 4 of 6	NP_001019386.1	Q8WUP2-2
	FBLIM1	NM_001350151.2		c.520G>T	p.Val174Phe	missense	Exon 6 of 10	NP_001337080.1	Q8WUP2-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FBLIM1	ENST00000375766.8	TSL:2 MANE Select	c.520G>T	p.Val174Phe	missense	Exon 5 of 9	ENSP00000364921.3	Q8WUP2-1
	FBLIM1	ENST00000441801.6	TSL:1	c.520G>T	p.Val174Phe	missense	Exon 4 of 6	ENSP00000416387.2	Q8WUP2-2
	FBLIM1	ENST00000375771.5	TSL:1	c.520G>T	p.Val174Phe	missense	Exon 6 of 10	ENSP00000364926.1	Q8WUP2-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1459738 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726252

African (AFR) AF: 0.0000299 AC: 1 AN: 33398

American (AMR) AF: 0.00 AC: 0 AN: 44172

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26036

East Asian (EAS) AF: 0.00 AC: 0 AN: 39466

South Asian (SAS) AF: 0.00 AC: 0 AN: 85914

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53208

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5758

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111504

Other (OTH) AF: 0.00 AC: 0 AN: 60282

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 16

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	6.9
DANN	Benign	0.96
DEOGEN2	Benign	0.0027	T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.55
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.47	T
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	1.7	L
PhyloP100		0.34
PrimateAI	Uncertain	0.48	T
PROVEAN	Benign	-0.33	N
REVEL	Benign	0.066
Sift	Benign	0.68	T
Sift4G	Benign	0.70	T
Polyphen		0.61	P
Vest4		0.30
MVP		0.76
MPC		0.90
ClinPred		0.32	T
GERP RS		2.5
Varity_R		0.049
gMVP		0.23
Mutation Taster		=89/11	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: rs75390903; hg19: chr1-16095104;