5-134666874-C-T

Variant names:

• chr5-134666874-C-T
• rs1335764289
• NM_021982.3:c.617C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_021982.3(SEC24A):​c.617C>T​(p.Pro206Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: SEC24A NM_021982.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.75
• Publications: 0 publications found

Genes affected

SEC24A (HGNC:10703): (SEC24 homolog A, COPII coat complex component) The protein encoded by this gene belongs to a family of proteins that are homologous to yeast Sec24. This protein is a component of coat protein II (COPII)-coated vesicles that mediate protein transport from the endoplasmic reticulum. COPII acts in the cytoplasm to promote the transport of secretory, plasma membrane, and vacuolar proteins from the endoplasmic reticulum to the golgi complex. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.32854775).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021982.3. 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
	SEC24A	NM_021982.3	MANE Select	c.617C>T	p.Pro206Leu	missense	Exon 3 of 23	NP_068817.1	O95486-1
	SEC24A	NM_001252231.2		c.617C>T	p.Pro206Leu	missense	Exon 3 of 13	NP_001239160.1	O95486-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEC24A	ENST00000398844.7	TSL:2 MANE Select	c.617C>T	p.Pro206Leu	missense	Exon 3 of 23	ENSP00000381823.2	O95486-1
	SEC24A	ENST00000322887.8	TSL:1	c.617C>T	p.Pro206Leu	missense	Exon 3 of 13	ENSP00000321749.4	O95486-2
	SEC24A	ENST00000903398.1		c.617C>T	p.Pro206Leu	missense	Exon 3 of 24	ENSP00000573457.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151978 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000658

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

GnomAD2 exomes AF: 0.00000803 AC: 2 AN: 249108 AF XY: 0.0000148

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000165

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461850 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727240

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

African (AFR) AF: 0.0000896 AC: 3 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111974

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000000286219), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151978 Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1 AN XY: 74220

African (AFR) AF: 0.00 AC: 0 AN: 41376

American (AMR) AF: 0.0000658 AC: 1 AN: 15208

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.095
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.060
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.048	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.78	T
M_CAP	Uncertain	0.19	D
MetaRNN	Benign	0.33	T
MetaSVM	Pathogenic	0.85	D
MutationAssessor	Uncertain	2.1	M
PhyloP100		2.7
PrimateAI	Uncertain	0.48	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.41
Sift	Benign	0.067	T
Sift4G	Uncertain	0.038	D
Polyphen		1.0	D
Vest4		0.34
MutPred		0.26		Loss of relative solvent accessibility (P = 0.0186)
MVP		0.98
MPC		0.52
ClinPred		0.59	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.090
gMVP		0.44
Mutation Taster		=89/11	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.11		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: rs1335764289; hg19: chr5-134002564;