chr3-12839404-G-C

Variant names:

• chr3-12839404-G-C
• rs151271733
• NM_000994.4:c.223C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000994.4(RPL32):​c.223C>G​(p.Arg75Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,834 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R75W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RPL32 NM_000994.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.39
• Publications: 0 publications found

Genes affected

RPL32 (HGNC:10336): (ribosomal protein L32) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein belongs to the L32E family of ribosomal proteins. It is located in the cytoplasm. Although some studies have mapped this gene to 3q13.3-q21, it is believed to map to 3p25-p24. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. Alternatively spliced transcript variants encoding the same protein have been observed for this gene. [provided by RefSeq, Jul 2008]

ENSG00000289809 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000994.4. 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
	RPL32	NM_000994.4	MANE Select	c.223C>G	p.Arg75Gly	missense	Exon 3 of 4	NP_000985.1	P62910
	RPL32	NM_001007073.1		c.223C>G	p.Arg75Gly	missense	Exon 3 of 4	NP_001007074.1	P62910
	RPL32	NM_001007074.1		c.223C>G	p.Arg75Gly	missense	Exon 2 of 3	NP_001007075.1	P62910

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPL32	ENST00000429711.7	TSL:1 MANE Select	c.223C>G	p.Arg75Gly	missense	Exon 3 of 4	ENSP00000416429.2	P62910
	RPL32	ENST00000396953.6	TSL:1	c.223C>G	p.Arg75Gly	missense	Exon 2 of 3	ENSP00000380156.2	P62910
	ENSG00000289809	ENST00000454887.1	TSL:5	c.267+7832G>C		intron	N/A	ENSP00000403093.1	C9JH00

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461834 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727216

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44720

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: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111980

Other (OTH) AF: 0.00 AC: 0 AN: 60384

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Uncertain	0.042	T
BayesDel_noAF	Benign	-0.18
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.43	T
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.069
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.014	T
MetaRNN	Uncertain	0.45	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		4.4
PrimateAI	Uncertain	0.64	T
PROVEAN	Pathogenic	-4.8	D
REVEL	Uncertain	0.42
Sift	Benign	0.031	D
Sift4G	Benign	0.18	T
Polyphen		0.0020	B
Vest4		0.66
MutPred		0.38		Loss of MoRF binding (P = 0.0188)
MVP		0.46
MPC		1.2
ClinPred		0.99	D
GERP RS		1.9
Varity_R		0.62
gMVP		0.47
Mutation Taster		=79/21	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: rs151271733; hg19: chr3-12880903;