9-5689980-T-A

Position:

• chr9-5689980-T-A

Variant summary

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

The NM_020829.4(RIC1):​c.274T>A​(p.Phe92Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RIC1 NM_020829.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.94

Genes affected

RIC1 (HGNC:17686): (RIC1 homolog, RAB6A GEF complex partner 1) Enables guanyl-nucleotide exchange factor activity and small GTPase binding activity. Involved in several processes, including positive regulation of GTPase activity; regulation of extracellular matrix constituent secretion; and retrograde transport, endosome to Golgi. Located in cytosol and membrane. Part of Ric1-Rgp1 guanyl-nucleotide exchange factor complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RIC1	NM_020829.4	c.274T>A	p.Phe92Ile	missense_variant	3/26	ENST00000414202.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RIC1	ENST00000414202.7	c.274T>A	p.Phe92Ile	missense_variant	3/26	5	NM_020829.4	P1
RIC1	ENST00000545641.5	c.61T>A	p.Phe21Ile	missense_variant	2/24	1
RIC1	ENST00000251879.10	c.274T>A	p.Phe92Ile	missense_variant	3/22	1
RIC1	ENST00000418622.7	c.274T>A	p.Phe92Ile	missense_variant	3/25	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

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

Aug 02, 2023

The c.274T>A (p.F92I) alteration is located in exon 3 (coding exon 3) of the RIC1 gene. This alteration results from a T to A substitution at nucleotide position 274, causing the phenylalanine (F) at amino acid position 92 to be replaced by an isoleucine (I). 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	0.27
BayesDel_addAF	Uncertain	0.023	T
BayesDel_noAF	Benign	-0.20
CADD	Uncertain	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.067	.;.;T
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.79	T;T;T
M_CAP	Benign	0.011	T
MetaRNN	Uncertain	0.59	D;D;D
MetaSVM	Benign	-0.77	T
MutationAssessor	Benign	0.69	N;N;N
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-1.4	N;.;N
REVEL	Benign	0.11
Sift	Benign	0.045	D;.;D
Sift4G	Benign	0.22	T;T;T
Polyphen		0.0030	.;.;B
Vest4		0.82
MutPred		0.54		Loss of catalytic residue at F92 (P = 0.1704);Loss of catalytic residue at F92 (P = 0.1704);Loss of catalytic residue at F92 (P = 0.1704);
MVP		0.14
ClinPred		0.67	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.31
gMVP		0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-5689980;