10-121519400-G-T

Variant names:

• chr10-121519400-G-T
• rs2981451
• NM_000141.5:c.939+579C>A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000141.5(FGFR2):​c.939+579C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.366 in 152,068 control chromosomes in the GnomAD database, including 11,642 homozygotes. 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: 𝑓 0.37 (11642 hom., cov: 32)
• Consequence: FGFR2 NM_000141.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.263

Genes affected

FGFR2 (HGNC:3689): (fibroblast growth factor receptor 2) The protein encoded by this gene is a member of the fibroblast growth factor receptor 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 is a high-affinity receptor for acidic, basic and/or keratinocyte growth factor, depending on the isoform. Mutations in this gene are associated with Crouzon syndrome, Pfeiffer syndrome, Craniosynostosis, Apert syndrome, Jackson-Weiss syndrome, Beare-Stevenson cutis gyrata syndrome, Saethre-Chotzen syndrome, and syndromic craniosynostosis. Multiple alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jan 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.72).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.466 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGFR2	NM_000141.5	c.939+579C>A		intron_variant	Intron 7 of 17	ENST00000358487.10	NP_000132.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FGFR2	ENST00000358487.10	c.939+579C>A		intron_variant	Intron 7 of 17	1	NM_000141.5	ENSP00000351276.6
FGFR2	ENST00000457416.7	c.940-571C>A		intron_variant	Intron 7 of 17	1		ENSP00000410294.2
FGFR2	ENST00000369056.5	c.940-571C>A		intron_variant	Intron 6 of 16	1		ENSP00000358052.1
FGFR2	ENST00000369058.7	c.940-571C>A		intron_variant	Intron 7 of 16	1		ENSP00000358054.3
FGFR2	ENST00000613048.4	c.672+579C>A		intron_variant	Intron 6 of 16	5		ENSP00000484154.1
FGFR2	ENST00000369061.8	c.749-4081C>A		intron_variant	Intron 5 of 14	1		ENSP00000358057.4
FGFR2	ENST00000369059.5	c.595-571C>A		intron_variant	Intron 5 of 15	5		ENSP00000358055.1
FGFR2	ENST00000360144.7	c.673-571C>A		intron_variant	Intron 6 of 16	2		ENSP00000353262.3
FGFR2	ENST00000478859.5	c.255+579C>A		intron_variant	Intron 6 of 16	1		ENSP00000474011.1
FGFR2	ENST00000604236.5	n.595-571C>A		intron_variant	Intron 5 of 16	1		ENSP00000474109.1

Frequencies

GnomAD3 genomes AF: 0.366 AC: 55657 AN: 151950 Hom.: 11643 Cov.: 32

Gnomad AFR AF: 0.161

Gnomad AMI AF: 0.614

Gnomad AMR AF: 0.415

Gnomad ASJ AF: 0.508

Gnomad EAS AF: 0.266

Gnomad SAS AF: 0.445

Gnomad FIN AF: 0.363

Gnomad MID AF: 0.528

Gnomad NFE AF: 0.471

Gnomad OTH AF: 0.399

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

GnomAD4 genome AF: 0.366 AC: 55643 AN: 152068 Hom.: 11642 Cov.: 32 AF XY: 0.363 AC XY: 27016 AN XY: 74326

Gnomad4 AFR AF: 0.161

Gnomad4 AMR AF: 0.414

Gnomad4 ASJ AF: 0.508

Gnomad4 EAS AF: 0.266

Gnomad4 SAS AF: 0.445

Gnomad4 FIN AF: 0.363

Gnomad4 NFE AF: 0.471

Gnomad4 OTH AF: 0.397

Alfa AF: 0.443 Hom.: 13076

Bravo AF: 0.360

Asia WGS AF: 0.304 AC: 1055 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.72
CADD	Benign	13
DANN	Benign	0.83

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: rs2981451; hg19: chr10-123278914;