chr5-149621745-G-A

Position:

• chr5-149621745-G-A

Variant summary

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

The NM_001001669.3(ARHGEF37):​c.1018G>A​(p.Glu340Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ARHGEF37 NM_001001669.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.77

Genes affected

ARHGEF37 (HGNC:34430): (Rho guanine nucleotide exchange factor 37) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity. Predicted to be located in cytoplasm. [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=0.088718355).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGEF37	NM_001001669.3	c.1018G>A	p.Glu340Lys	missense_variant	9/13	ENST00000333677.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGEF37	ENST00000333677.7	c.1018G>A	p.Glu340Lys	missense_variant	9/13	2	NM_001001669.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 6.85e-7 AC: 1 AN: 1459100 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 725444

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.01e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ExAC AF: 0.000223 AC: 27

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

Jan 06, 2023

The c.1018G>A (p.E340K) alteration is located in exon 9 (coding exon 8) of the ARHGEF37 gene. This alteration results from a G to A substitution at nucleotide position 1018, causing the glutamic acid (E) at amino acid position 340 to be replaced by a lysine (K). 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	0.096
BayesDel_addAF	Benign	-0.063	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	18
DANN	Uncertain	1.0
DEOGEN2	Benign	0.032	T
Eigen	Benign	-0.13
Eigen_PC	Benign	0.013
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.089	T
MetaSVM	Benign	-0.69	T
MutationAssessor	Benign	2.0	M
MutationTaster	Benign	0.59	D
PrimateAI	Benign	0.26	T
PROVEAN	Uncertain	-2.8	D
REVEL	Benign	0.13
Sift	Benign	0.035	D
Sift4G	Benign	0.25	T
Polyphen		0.0040	B
Vest4		0.10
MutPred		0.59		Gain of MoRF binding (P = 0.002);
MVP		0.33
MPC		0.11
ClinPred		0.14	T
GERP RS		4.3
Varity_R		0.18
gMVP		0.30

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: rs758292615; hg19: chr5-149001308;