1-212365231-G-C

Variant names:

• chr1-212365231-G-C
• rs748844764
• NM_018252.3:c.1037C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_018252.3(PACC1):​c.1037C>G​(p.Thr346Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,194 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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. T346M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PACC1 NM_018252.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.24
• Publications: 0 publications found

Genes affected

PACC1 (HGNC:25593): (proton activated chloride channel 1) Enables pH-gated chloride channel activity. Involved in chloride transport. Is integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08425906).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PACC1	NM_018252.3	c.1037C>G	p.Thr346Arg	missense_variant	Exon 8 of 8	ENST00000261455.9	NP_060722.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PACC1	ENST00000261455.9	c.1037C>G	p.Thr346Arg	missense_variant	Exon 8 of 8	1	NM_018252.3	ENSP00000261455.4
PACC1	ENST00000535273.2	c.1220C>G	p.Thr407Arg	missense_variant	Exon 9 of 9	2		ENSP00000438863.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461194 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726954

African (AFR) AF: 0.00 AC: 0 AN: 33404

American (AMR) AF: 0.00 AC: 0 AN: 44600

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26098

East Asian (EAS) AF: 0.00 AC: 0 AN: 39680

South Asian (SAS) AF: 0.00 AC: 0 AN: 86202

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53340

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111746

Other (OTH) AF: 0.0000166 AC: 1 AN: 60364

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.0080	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	18
DANN	Uncertain	0.97
DEOGEN2	Benign	0.18	T;.
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.18
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.72	T;T
M_CAP	Benign	0.0048	T
MetaRNN	Benign	0.084	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N;.
PhyloP100		4.2
PrimateAI	Benign	0.32	T
PROVEAN	Uncertain	-3.0	D;D
REVEL	Benign	0.20
Sift	Benign	0.046	D;D
Sift4G	Benign	0.11	T;T
Polyphen		0.11	B;.
Vest4		0.071
MutPred		0.24		Gain of methylation at T346 (P = 0.0346);.;
MVP		0.040
MPC		0.41
ClinPred		0.47	T
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.14
gMVP		0.57
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: rs748844764; hg19: chr1-212538573;