chr4-88731430-T-TA

Position:

• chr4-88731430-T-TA

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_Moderate BA1

The NM_014883.4(FAM13A):​c.2844-3_2844-2insT variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00282 in 1,546,570 control chromosomes in the GnomAD database, including 93 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.015 (52 hom., cov: 32)
  • Exomes 𝑓: 0.0015 (41 hom.)
• Consequence: FAM13A NM_014883.4 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.801

Genes affected

FAM13A (HGNC:19367): (family with sequence similarity 13 member A) Predicted to enable GTPase activator activity. Predicted to be involved in regulation of small GTPase mediated signal transduction. Predicted to be located in cytosol. Implicated in chronic obstructive pulmonary disease. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP6: Variant 4-88731430-T-TA is Benign according to our data. Variant chr4-88731430-T-TA is described in ClinVar as [Benign]. Clinvar id is 778157.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0503 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM13A	NM_014883.4	c.2844-3_2844-2insT		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000264344.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAM13A	ENST00000264344.10	c.2844-3_2844-2insT		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_014883.4	P1

Frequencies

GnomAD3 genomes AF: 0.0149 AC: 2274 AN: 152144 Hom.: 52 Cov.: 32

Gnomad AFR AF: 0.0521

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00491

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000829

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.0110

GnomAD3 exomes AF: 0.00399 AC: 931 AN: 233454 Hom.: 21 AF XY: 0.00276 AC XY: 351 AN XY: 127252

Gnomad AFR exome AF: 0.0536

Gnomad AMR exome AF: 0.00212

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000452

Gnomad OTH exome AF: 0.00157

GnomAD4 exome AF: 0.00150 AC: 2086 AN: 1394308 Hom.: 41 Cov.: 22 AF XY: 0.00129 AC XY: 897 AN XY: 697416

Gnomad4 AFR exome AF: 0.0540

Gnomad4 AMR exome AF: 0.00248

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000132

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000263

Gnomad4 OTH exome AF: 0.00361

GnomAD4 genome AF: 0.0150 AC: 2280 AN: 152262 Hom.: 52 Cov.: 32 AF XY: 0.0146 AC XY: 1090 AN XY: 74446

Gnomad4 AFR AF: 0.0521

Gnomad4 AMR AF: 0.00490

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000415

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.0109

Alfa AF: 0.00624 Hom.: 5

Bravo AF: 0.0168

Asia WGS AF: 0.00289 AC: 10 AN: 3478

EpiCase AF: 0.000110

EpiControl AF: 0.0000594

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

Labcorp Genetics (formerly Invitae), Labcorp

Feb 26, 2018

- -

Computational scores

Source: dbNSFP v4.3

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: rs147595342; hg19: chr4-89652581;