1-174241548-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001366446.1(RABGAP1L):c.608C>T(p.Ala203Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RABGAP1L NM_001366446.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.06

Genes affected

RABGAP1L (HGNC:24663): (RAB GTPase activating protein 1 like) Enables GTPase activator activity and small GTPase binding activity. Acts upstream of or within regulation of protein localization. Located in Golgi apparatus; early endosome; and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1705338).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RABGAP1L	NM_001366446.1	c.608C>T	p.Ala203Val	missense_variant	5/26	ENST00000681986.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RABGAP1L	ENST00000681986.1	c.608C>T	p.Ala203Val	missense_variant	5/26		NM_001366446.1	P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460674 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726730

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 18, 2023

The c.608C>T (p.A203V) alteration is located in exon 1 (coding exon 1) of the RABGAP1L gene. This alteration results from a C to T substitution at nucleotide position 608, causing the alanine (A) at amino acid position 203 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
Cadd	Benign	18
Dann	Uncertain	0.98
Eigen	Benign	-0.25
Eigen_PC	Benign	-0.065
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.74	T;T;T
M_CAP	Benign	0.0081	T
MetaRNN	Benign	0.17	T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	0.89	D;D;D
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.96	N;N;N
REVEL	Benign	0.046
Sift	Benign	0.34	T;T;T
Sift4G	Benign	0.95	T;T;T
Polyphen		0.016	B;B;.
Vest4		0.44
MutPred		0.59		.;Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);
MVP		0.31
MPC		0.28
ClinPred		0.64	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.069
gMVP		0.55

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr1-174210686;