2-203439491-G-T

Variant names:

• chr2-203439491-G-T
• rs2465520
• NM_213589.3:c.3699C>A

Variant summary

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

The NM_213589.3(RAPH1):​c.3699C>A​(p.Pro1233Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,724 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: 6.8e-7 (0 hom.)
• Consequence: RAPH1 NM_213589.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.96
• Publications: 0 publications found

Genes affected

RAPH1 (HGNC:14436): (Ras association (RalGDS/AF-6) and pleckstrin homology domains 1) This gene encodes a protein that belongs to the Mig10/Rap1-interacting adaptor molecule/Lamellipodin family of adapter proteins, which function in cell migration. Members of this family contain pleckstrin-homology domains, Ras-association domains, and proline-rich C-termini. The protein encoded by this gene regulates actin dynamics through interaction with Ena/Vasodilator proteins as well as direct binding to filamentous actin to regulate actin network assembly. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]

ABI2 (HGNC:24011): (abl interactor 2) Enables several functions, including SH3 domain binding activity; identical protein binding activity; and ubiquitin protein ligase binding activity. Contributes to small GTPase binding activity. Involved in Rac protein signal transduction; positive regulation of cellular component organization; and zonula adherens assembly. Acts upstream of or within peptidyl-tyrosine phosphorylation. Located in several cellular components, including filopodium tip; lamellipodium; and nucleoplasm. Part of SCAR complex. Is active in adherens junction. Colocalizes with actin filament. [provided by Alliance of Genome Resources, Apr 2022]

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=-0.75).
• BP7: Synonymous conserved (PhyloP=-1.96 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_213589.3. 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
	RAPH1	NM_213589.3	MANE Select	c.3699C>A	p.Pro1233Pro	synonymous	Exon 14 of 14	NP_998754.1	Q70E73-10
	RAPH1	NM_001439019.1		c.3855C>A	p.Pro1285Pro	synonymous	Exon 16 of 16	NP_001425948.1
	RAPH1	NM_001439027.1		c.3780C>A	p.Pro1260Pro	synonymous	Exon 15 of 15	NP_001425956.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAPH1	ENST00000319170.10	TSL:1 MANE Select	c.3699C>A	p.Pro1233Pro	synonymous	Exon 14 of 14	ENSP00000316543.5	Q70E73-10
	ABI2	ENST00000295851.10	TSL:1	c.*12139G>T		3_prime_UTR	Exon 11 of 11	ENSP00000295851.4	A0A7D9NKC8
	RAPH1	ENST00000374493.7	TSL:5	c.3855C>A	p.Pro1285Pro	synonymous	Exon 15 of 15	ENSP00000363617.3	C9K0J5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461724 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 727146

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

American (AMR) AF: 0.00 AC: 0 AN: 44724

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

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53276

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111992

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	2.2
DANN	Benign	0.79
PhyloP100		-2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Mutation Taster		=98/2	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: rs2465520; hg19: chr2-204304214;