rs747506157

Variant names:

• chr13-101721218-CCAAA-C
• rs747506157
• NM_004115.4:c.*1609_*1612delTTTG

Your query was ambiguous. Multiple possible variants found:

• chr13-101721218-CCAAA-C
• chr13-101721218-CCAAA-CCAAACAAA

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_004115.4(FGF14):​c.*1609_*1612delTTTG variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00025 in 152,060 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00025 (0 hom., cov: 32)
  • Failed GnomAD Quality Control
• Consequence: FGF14 NM_004115.4 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.52
• Publications: 0 publications found

Genes affected

FGF14 (HGNC:3671): (fibroblast growth factor 14) The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. A mutation in this gene is associated with autosomal dominant cerebral ataxia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]

FGF14 Gene-Disease associations (from GenCC):

• spinocerebellar ataxia 27A

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• spinocerebellar ataxia type 27

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
• autosomal recessive cerebellar ataxia

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ENSG00000276012 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• BS1: Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00025 (38/152060) while in subpopulation NFE AF = 0.000471 (32/67978). AF 95% confidence interval is 0.000342. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004115.4. 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
	FGF14	NM_004115.4	MANE Select	c.*1609_*1612delTTTG		3_prime_UTR	Exon 5 of 5	NP_004106.1	Q92915-1
	FGF14	NM_175929.3		c.*1609_*1612delTTTG		3_prime_UTR	Exon 5 of 5	NP_787125.1	Q92915-2
	FGF14	NM_001321939.2		c.*1609_*1612delTTTG		3_prime_UTR	Exon 4 of 4	NP_001308868.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FGF14	ENST00000376143.5	TSL:1 MANE Select	c.*1609_*1612delTTTG		3_prime_UTR	Exon 5 of 5	ENSP00000365313.4	Q92915-1
	FGF14	ENST00000376131.9	TSL:1	c.*1609_*1612delTTTG		3_prime_UTR	Exon 5 of 5	ENSP00000365301.3	Q92915-2
	FGF14	ENST00000706491.1		n.*1957_*1960delTTTG		non_coding_transcript_exon	Exon 6 of 6	ENSP00000516413.1	A0A9L9PXI9

Frequencies

GnomAD3 genomes AF: 0.000250 AC: 38 AN: 151942 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000725

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000656

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000471

Gnomad OTH AF: 0.000480

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

GnomAD4 genome AF: 0.000250 AC: 38 AN: 152060 Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9 AN XY: 74312

African (AFR) AF: 0.0000723 AC: 3 AN: 41504

American (AMR) AF: 0.0000656 AC: 1 AN: 15254

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5144

South Asian (SAS) AF: 0.00 AC: 0 AN: 4812

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.000471 AC: 32 AN: 67978

Other (OTH) AF: 0.000475 AC: 1 AN: 2104

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.000295

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal dominant cerebellar ataxia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.5

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs747506157; hg19: chr13-102373568;