rs2293971

Positions:

• chr8-38426493-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_023110.3(FGFR1):​c.622-248G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.184 in 152,192 control chromosomes in the GnomAD database, including 2,993 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.18 (2993 hom., cov: 32)
• Consequence: FGFR1 NM_023110.3 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.311

Genes affected

FGFR1 (HGNC:3688): (fibroblast growth factor receptor 1) The protein encoded by this gene is a member of the fibroblast growth factor receptor (FGFR) family, where amino acid sequence is highly conserved between members and throughout evolution. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein consists of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. This particular family member binds both acidic and basic fibroblast growth factors and is involved in limb induction. Mutations in this gene have been associated with Pfeiffer syndrome, Jackson-Weiss syndrome, Antley-Bixler syndrome, osteoglophonic dysplasia, and autosomal dominant Kallmann syndrome 2. Chromosomal aberrations involving this gene are associated with stem cell myeloproliferative disorder and stem cell leukemia lymphoma syndrome. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP6: Variant 8-38426493-C-T is Benign according to our data. Variant chr8-38426493-C-T is described in ClinVar as [Benign]. Clinvar id is 1276722.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.295 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FGFR1	NM_023110.3	c.622-248G>A		intron_variant		ENST00000447712.7	NP_075598.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FGFR1	ENST00000447712.7	c.622-248G>A		intron_variant		1	NM_023110.3	ENSP00000400162	P4

Frequencies

GnomAD3 genomes AF: 0.184 AC: 27937 AN: 152074 Hom.: 2987 Cov.: 32

Gnomad AFR AF: 0.0968

Gnomad AMI AF: 0.363

Gnomad AMR AF: 0.214

Gnomad ASJ AF: 0.150

Gnomad EAS AF: 0.307

Gnomad SAS AF: 0.100

Gnomad FIN AF: 0.184

Gnomad MID AF: 0.213

Gnomad NFE AF: 0.225

Gnomad OTH AF: 0.195

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.184 AC: 27964 AN: 152192 Hom.: 2993 Cov.: 32 AF XY: 0.180 AC XY: 13417 AN XY: 74404

Gnomad4 AFR AF: 0.0970

Gnomad4 AMR AF: 0.215

Gnomad4 ASJ AF: 0.150

Gnomad4 EAS AF: 0.307

Gnomad4 SAS AF: 0.100

Gnomad4 FIN AF: 0.184

Gnomad4 NFE AF: 0.225

Gnomad4 OTH AF: 0.193

Alfa AF: 0.204 Hom.: 681

Bravo AF: 0.190

Asia WGS AF: 0.192 AC: 666 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 26, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	2.2
DANN	Benign	0.59

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

LitVar

Other links and lift over

dbSNP: rs2293971; hg19: chr8-38284011; COSMIC: COSV58329254; COSMIC: COSV58329254;