5-134661379-C-G

Variant names:

• chr5-134661379-C-G
• rs748792808
• NM_021982.3:c.358C>G

Variant summary

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

The NM_021982.3(SEC24A):​c.358C>G​(p.Pro120Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. P120S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SEC24A NM_021982.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.561
• 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19170141).

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.358C>G	p.Pro120Ala	missense	Exon 2 of 23	NP_068817.1	O95486-1
	SEC24A	NM_001252231.2		c.358C>G	p.Pro120Ala	missense	Exon 2 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.358C>G	p.Pro120Ala	missense	Exon 2 of 23	ENSP00000381823.2	O95486-1
	SEC24A	ENST00000322887.8	TSL:1	c.358C>G	p.Pro120Ala	missense	Exon 2 of 13	ENSP00000321749.4	O95486-2
	SEC24A	ENST00000903398.1		c.358C>G	p.Pro120Ala	missense	Exon 2 of 24	ENSP00000573457.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461876 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727244

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

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: 86258

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

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111998

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.054
BayesDel_addAF	Uncertain	0.084	D
BayesDel_noAF	Benign	-0.12
CADD	Benign	12
DANN	Benign	0.93
DEOGEN2	Benign	0.043	T
Eigen	Benign	-0.48
Eigen_PC	Benign	-0.38
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.047	D
MetaRNN	Benign	0.19	T
MetaSVM	Uncertain	0.32	D
MutationAssessor	Benign	2.0	M
PhyloP100		0.56
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.21
Sift	Uncertain	0.0090	D
Sift4G	Benign	0.28	T
Polyphen		0.089	B
Vest4		0.32
MutPred		0.21		Loss of glycosylation at P120 (P = 0.0335)
MVP		0.84
MPC		0.11
ClinPred		0.092	T
GERP RS		1.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.049
gMVP		0.17
Mutation Taster		=86/14	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: rs748792808; hg19: chr5-133997069;