6-31632527-G-T

Variant names:

• chr6-31632527-G-T
• rs2736158
• NM_004638.4:c.3854G>T

Variant summary

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

The NM_004638.4(PRRC2A):​c.3854G>T​(p.Gly1285Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. G1285A) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: PRRC2A NM_004638.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.64

Genes affected

PRRC2A (HGNC:13918): (proline rich coiled-coil 2A) A cluster of genes, BAT1-BAT5, has been localized in the vicinity of the genes for TNF alpha and TNF beta. These genes are all within the human major histocompatibility complex class III region. This gene has microsatellite repeats which are associated with the age-at-onset of insulin-dependent diabetes mellitus (IDDM) and possibly thought to be involved with the inflammatory process of pancreatic beta-cell destruction during the development of IDDM. This gene is also a candidate gene for the development of rheumatoid arthritis. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Dec 2010]

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=0.10956672).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRRC2A	NM_004638.4	c.3854G>T	p.Gly1285Val	missense_variant	Exon 16 of 31	ENST00000376033.3	NP_004629.3
PRRC2A	NM_080686.3	c.3854G>T	p.Gly1285Val	missense_variant	Exon 16 of 31		NP_542417.2
PRRC2A	XM_047419336.1	c.3854G>T	p.Gly1285Val	missense_variant	Exon 16 of 30		XP_047275292.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRRC2A	ENST00000376033.3	c.3854G>T	p.Gly1285Val	missense_variant	Exon 16 of 31	1	NM_004638.4	ENSP00000365201.2
PRRC2A	ENST00000376007.8	c.3854G>T	p.Gly1285Val	missense_variant	Exon 16 of 31	1		ENSP00000365175.4

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152076 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 33

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152076 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74266

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000655

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.074
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	15
DANN	Benign	0.60
DEOGEN2	Benign	0.0051	T;T
Eigen	Benign	-0.61
Eigen_PC	Benign	-0.59
FATHMM_MKL	Benign	0.64	D
LIST_S2	Benign	0.67	.;T
M_CAP	Benign	0.0064	T
MetaRNN	Benign	0.11	T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	1.7	L;L
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-1.8	N;N
REVEL	Benign	0.070
Sift	Benign	0.093	T;T
Sift4G	Benign	0.35	T;T
Polyphen		0.0030	B;B
Vest4		0.59
MutPred		0.22		Loss of glycosylation at P1284 (P = 0.1049);Loss of glycosylation at P1284 (P = 0.1049);
MVP		0.093
MPC		0.20
ClinPred		0.092	T
GERP RS		3.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.089
gMVP		0.11

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: rs2736158; hg19: chr6-31600304;