chr5-73911547-T-C

Variant names:

• chr5-73911547-T-C
• rs1478453
• NM_001177693.2:c.4920T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001177693.2(ARHGEF28):​c.4920T>C​(p.His1640His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,456,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: ARHGEF28 NM_001177693.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.484
• Publications: 29 publications found

Genes affected

ARHGEF28 (HGNC:30322): (Rho guanine nucleotide exchange factor 28) This gene encodes a member of the Rho guanine nucleotide exchange factor family. The encoded protein interacts with low molecular weight neurofilament mRNA and may be involved in the formation of amyotrophic lateral sclerosis neurofilament aggregates. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Apr 2010]

ARHGEF28 Gene-Disease associations (from GenCC):

• amyotrophic lateral sclerosis

  Inheritance: AD, AR, SD Classification: MODERATE, LIMITED Submitted by: Genomics England PanelApp, ClinGen

ENSG00000304540 (HGNC:59068):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP7: Synonymous conserved (PhyloP=-0.484 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001177693.2. 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
	ARHGEF28	NM_001177693.2	MANE Select	c.4920T>C	p.His1640His	synonymous	Exon 35 of 36	NP_001171164.1	Q8N1W1-1
	ARHGEF28	NM_001080479.3		c.4920T>C	p.His1640His	synonymous	Exon 35 of 37	NP_001073948.2	Q8N1W1-6
	ARHGEF28	NM_001388078.1		c.4920T>C	p.His1640His	synonymous	Exon 35 of 35	NP_001375007.1	Q8N1W1-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARHGEF28	ENST00000513042.7	TSL:5 MANE Select	c.4920T>C	p.His1640His	synonymous	Exon 35 of 36	ENSP00000441436.1	Q8N1W1-1
	ARHGEF28	ENST00000437974.5	TSL:1	c.4920T>C	p.His1640His	synonymous	Exon 34 of 36	ENSP00000411459.1	Q8N1W1-6
	ARHGEF28	ENST00000426542.6	TSL:1	c.4920T>C	p.His1640His	synonymous	Exon 34 of 35	ENSP00000412175.2	Q8N1W1-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000417 AC: 1 AN: 240052 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000573

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.87e-7 AC: 1 AN: 1456018 Hom.: 0 Cov.: 42 AF XY: 0.00 AC XY: 0 AN XY: 723460

African (AFR) AF: 0.00 AC: 0 AN: 33428

American (AMR) AF: 0.00 AC: 0 AN: 43954

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25990

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39618

South Asian (SAS) AF: 0.00 AC: 0 AN: 85326

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53214

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5758

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1108538

Other (OTH) AF: 0.00 AC: 0 AN: 60192

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.18
DANN	Benign	0.37
PhyloP100		-0.48

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: rs1478453; hg19: chr5-73207372;