chr22-45503051-G-C

Variant names:

• chr22-45503051-G-C
• NM_006486.3:c.66G>C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_006486.3(FBLN1):​c.66G>C​(p.Leu22Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000912 in 1,096,400 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.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 9.1e-7 (0 hom.)
• Consequence: FBLN1 NM_006486.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.927

Genes affected

FBLN1 (HGNC:3600): (fibulin 1) Fibulin 1 is a secreted glycoprotein that becomes incorporated into a fibrillar extracellular matrix. Calcium-binding is apparently required to mediate its binding to laminin and nidogen. It mediates platelet adhesion via binding fibrinogen. Four splice variants which differ in the 3' end have been identified. Each variant encodes a different isoform, but no functional distinctions have been identified among the four variants. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.58).
• BP7: Synonymous conserved (PhyloP=0.927 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FBLN1	NM_006486.3	c.66G>C	p.Leu22Leu	synonymous_variant	Exon 1 of 17	ENST00000327858.11	NP_006477.3
FBLN1	NM_001996.4	c.66G>C	p.Leu22Leu	synonymous_variant	Exon 1 of 15		NP_001987.3
FBLN1	NM_006485.4	c.66G>C	p.Leu22Leu	synonymous_variant	Exon 1 of 15		NP_006476.3
FBLN1	NM_006487.3	c.66G>C	p.Leu22Leu	synonymous_variant	Exon 1 of 15		NP_006478.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FBLN1	ENST00000327858.11	c.66G>C	p.Leu22Leu	synonymous_variant	Exon 1 of 17	1	NM_006486.3	ENSP00000331544.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 9.12e-7 AC: 1 AN: 1096400 Hom.: 0 Cov.: 30 AF XY: 0.00000191 AC XY: 1 AN XY: 523536

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000108

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.58
CADD	Benign	14
DANN	Benign	0.70

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-45898931;