6-33293126-C-G

Variant names:

• chr6-33293126-C-G
• rs140452775
• NM_004761.5:c.1897G>C

Variant summary

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

The NM_004761.5(RGL2):​c.1897G>C​(p.Gly633Arg) 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 1,460,660 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RGL2 NM_004761.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.128
• Publications: 0 publications found

Genes affected

RGL2 (HGNC:9769): (ral guanine nucleotide dissociation stimulator like 2) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity and small GTPase mediated signal transduction. Predicted to act upstream of or within negative regulation of cardiac muscle cell apoptotic process; positive regulation of phosphatidylinositol 3-kinase signaling; and regulation of Ral protein signal transduction. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

PFDN6 (HGNC:4926): (prefoldin subunit 6) PFDN6 is a subunit of the heteromeric prefoldin complex that chaperones nascent actin (see MIM 102560) and alpha- and beta-tubulin (see MIM 602529 and MIM 191130, respectively) chains pending their transfer to the cytosolic chaperonin containing TCP1 (MIM 186980) (CCT) complex (Hansen et al., 1999 [PubMed 10209023]).[supplied by OMIM, Jul 2010]

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=0.033555806).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004761.5. 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
	RGL2	NM_004761.5	MANE Select	c.1897G>C	p.Gly633Arg	missense	Exon 16 of 18	NP_004752.1	A0A024RCS9
	RGL2	NM_001243738.2		c.1651G>C	p.Gly551Arg	missense	Exon 15 of 17	NP_001230667.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RGL2	ENST00000497454.6	TSL:1 MANE Select	c.1897G>C	p.Gly633Arg	missense	Exon 16 of 18	ENSP00000420211.1	O15211-1
	RGL2	ENST00000437840.6	TSL:1	n.1802G>C		non_coding_transcript_exon	Exon 15 of 17
	RGL2	ENST00000968840.1		c.1957G>C	p.Gly653Arg	missense	Exon 16 of 18	ENSP00000638899.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460660 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 726670

African (AFR) AF: 0.00 AC: 0 AN: 33410

American (AMR) AF: 0.00 AC: 0 AN: 44458

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

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

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53372

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

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111480

Other (OTH) AF: 0.00 AC: 0 AN: 60324

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.74
CADD	Benign	0.52
DANN	Benign	0.72
DEOGEN2	Benign	0.016	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.13	N
M_CAP	Benign	0.0047	T
MetaRNN	Benign	0.034	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	-0.34	N
PhyloP100		-0.13
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-0.23	N
REVEL	Benign	0.027
Sift	Benign	0.75	T
Sift4G	Benign	0.58	T
Polyphen		0.0	B
Vest4		0.10
MutPred		0.32		Gain of solvent accessibility (P = 0.0037)
MVP		0.25
MPC		0.42
ClinPred		0.046	T
GERP RS		0.51
Varity_R		0.045
gMVP		0.43
Mutation Taster		=97/3	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: rs140452775; hg19: chr6-33260903; COSMIC: COSV107486121; COSMIC: COSV107486121;