chr22-30646807-G-T

Position:

• chr22-30646807-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001001479.4(SLC35E4):​c.829G>T​(p.Ala277Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SLC35E4 NM_001001479.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.56

Genes affected

SLC35E4 (HGNC:17058): (solute carrier family 35 member E4) Predicted to enable antiporter activity. Predicted to be involved in transmembrane transport. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11185455).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC35E4	NM_001001479.4	c.829G>T	p.Ala277Ser	missense_variant	2/2	ENST00000343605.5
SLC35E4	NM_001318370.2	c.620-2353G>T		intron_variant
SLC35E4	NM_001318371.2	c.619+9738G>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC35E4	ENST00000343605.5	c.829G>T	p.Ala277Ser	missense_variant	2/2	1	NM_001001479.4	P1
SLC35E4	ENST00000406566.1	c.620-2353G>T		intron_variant		1
SLC35E4	ENST00000451479.1	c.547+9738G>T		intron_variant		1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 26, 2024

The c.829G>T (p.A277S) alteration is located in exon 2 (coding exon 2) of the SLC35E4 gene. This alteration results from a G to T substitution at nucleotide position 829, causing the alanine (A) at amino acid position 277 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	0.076
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.011	T
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.0072
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	0.32	N
MutationTaster	Benign	1.0	D;D;N
PrimateAI	Uncertain	0.64	T
PROVEAN	Benign	0.16	N
REVEL	Benign	0.083
Sift	Benign	0.78	T
Sift4G	Benign	0.45	T
Polyphen		0.28	B
Vest4		0.095
MutPred		0.56		Loss of stability (P = 0.1665);
MVP		0.66
MPC		0.59
ClinPred		0.77	D
GERP RS		4.0
Varity_R		0.047
gMVP		0.13

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-31042794;