5-131430946-C-T

Variant names:

• chr5-131430946-C-T
• rs144316522
• NM_016340.6:c.4378G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016340.6(RAPGEF6):​c.4378G>A​(p.Ala1460Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1460P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RAPGEF6 NM_016340.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.115
• Publications: 1 publications found

Genes affected

RAPGEF6 (HGNC:20655): (Rap guanine nucleotide exchange factor 6) Enables several functions, including GTP-dependent protein binding activity; guanyl-nucleotide exchange factor activity; and phosphatidic acid binding activity. Involved in microvillus assembly; positive regulation of GTPase activity; and protein localization to plasma membrane. Located in several cellular components, including apical plasma membrane; centrosome; and endocytic vesicle. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000273217 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.037893325).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016340.6. 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
	RAPGEF6	NM_016340.6	MANE Select	c.4378G>A	p.Ala1460Thr	missense	Exon 26 of 28	NP_057424.3	Q8TEU7-1
	RAPGEF6	NM_001164386.2		c.4402G>A	p.Ala1468Thr	missense	Exon 27 of 29	NP_001157858.1	Q8TEU7-4
	RAPGEF6	NM_001164387.2		c.4417G>A	p.Ala1473Thr	missense	Exon 28 of 29	NP_001157859.1	Q8TEU7-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAPGEF6	ENST00000509018.6	TSL:1 MANE Select	c.4378G>A	p.Ala1460Thr	missense	Exon 26 of 28	ENSP00000421684.1	Q8TEU7-1
	ENSG00000273217	ENST00000514667.1	TSL:2	c.4528G>A	p.Ala1510Thr	missense	Exon 27 of 29	ENSP00000426948.1	E9PCH4
	RAPGEF6	ENST00000296859.10	TSL:1	c.4402G>A	p.Ala1468Thr	missense	Exon 27 of 29	ENSP00000296859.6	Q8TEU7-4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251374 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461846 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727224

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111976

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000282 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.065
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.78
CADD	Benign	1.3
DANN	Benign	0.50
DEOGEN2	Benign	0.10	T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.082	N
LIST_S2	Benign	0.21	T
M_CAP	Benign	0.0036	T
MetaRNN	Benign	0.038	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.4	L
PhyloP100		-0.12
PrimateAI	Benign	0.24	T
PROVEAN	Benign	0.22	N
REVEL	Benign	0.026
Sift	Benign	0.53	T
Sift4G	Benign	0.90	T
Polyphen		0.032	B
Vest4		0.019
MutPred		0.074		Gain of glycosylation at A1510 (P = 0.0062)
MVP		0.36
MPC		0.16
ClinPred		0.011	T
GERP RS		0.27
Varity_R		0.021
gMVP		0.23
Mutation Taster		=95/5	polymorphism

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

Other links and lift over

dbSNP: rs144316522; hg19: chr5-130766639;