NM_006817.4:c.25G>T

Variant names:

• chr12-112013490-G-T
• rs141517360
• NM_006817.4:c.25G>T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006817.4(ERP29):​c.25G>T​(p.Ala9Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,612,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000010 (0 hom.)
• Consequence: ERP29 NM_006817.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.564
• Publications: 0 publications found

Genes affected

ERP29 (HGNC:13799): (endoplasmic reticulum protein 29) This gene encodes a protein which localizes to the lumen of the endoplasmic reticulum (ER). It is a member of the protein disulfide isomerase (PDI) protein family but lacks an active thioredoxin motif, suggesting that this protein does not function as a disulfide isomerase. The canonical protein dimerizes and is thought to play a role in the processing of secretory proteins within the ER. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2016]

TMEM116 (HGNC:25084): (transmembrane protein 116) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.040158987).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERP29	NM_006817.4	c.25G>T	p.Ala9Ser	missense_variant	Exon 1 of 3	ENST00000261735.4	NP_006808.1
ERP29	NM_001034025.2	c.25G>T	p.Ala9Ser	missense_variant	Exon 1 of 2		NP_001029197.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ERP29	ENST00000261735.4	c.25G>T	p.Ala9Ser	missense_variant	Exon 1 of 3	1	NM_006817.4	ENSP00000261735.3

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152200 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.000955

GnomAD2 exomes AF: 0.0000241 AC: 6 AN: 249352 AF XY: 0.0000222

Gnomad AFR exome AF: 0.000310

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.0000998

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000103 AC: 15 AN: 1460312 Hom.: 0 Cov.: 31 AF XY: 0.00000964 AC XY: 7 AN XY: 726518

African (AFR) AF: 0.000330 AC: 11 AN: 33368

American (AMR) AF: 0.00 AC: 0 AN: 44454

Ashkenazi Jewish (ASJ) AF: 0.0000384 AC: 1 AN: 26072

East Asian (EAS) AF: 0.00 AC: 0 AN: 39468

South Asian (SAS) AF: 0.00 AC: 0 AN: 86178

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53322

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111372

Other (OTH) AF: 0.0000166 AC: 1 AN: 60314

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152200 Hom.: 0 Cov.: 33 AF XY: 0.0000807 AC XY: 6 AN XY: 74364

African (AFR) AF: 0.000169 AC: 7 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.000955 AC: 2 AN: 2094

Alfa AF: 0.0000967 Hom.: 0

Bravo AF: 0.000106

ESP6500AA AF: 0.000454 AC: 2

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000247 AC: 3

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 25, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.25G>T (p.A9S) alteration is located in exon 1 (coding exon 1) of the ERP29 gene. This alteration results from a G to T substitution at nucleotide position 25, causing the alanine (A) at amino acid position 9 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	10
DANN	Benign	0.86
DEOGEN2	Benign	0.077	T;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.53	T;T
M_CAP	Benign	0.0044	T
MetaRNN	Benign	0.040	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.90	L;L
PhyloP100		0.56
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-0.28	N;N
REVEL	Benign	0.0080
Sift	Benign	0.084	T;D
Sift4G	Benign	0.84	T;T
Polyphen		0.0010	B;.
Vest4		0.17
MVP		0.16
MPC		0.18
ClinPred		0.016	T
GERP RS		0.71
PromoterAI		-0.024	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.051
gMVP		0.45
Mutation Taster		=96/4	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: rs141517360; hg19: chr12-112451294;