chr6-87364965-G-A

Position:

• chr6-87364965-G-A

Variant summary

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

The NM_001010868.3(C6orf163):​c.559G>A​(p.Ala187Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000721 in 1,387,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: C6orf163 NM_001010868.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0520

Genes affected

C6orf163 (HGNC:21403): (chromosome 6 open reading frame 163)

SMIM8 (HGNC:21401): (small integral membrane protein 8) Predicted to be integral component of membrane. [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=0.08573246).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
C6orf163	NM_001010868.3	c.559G>A	p.Ala187Thr	missense_variant	5/5	ENST00000388923.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
C6orf163	ENST00000388923.5	c.559G>A	p.Ala187Thr	missense_variant	5/5	5	NM_001010868.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000662 AC: 1 AN: 151054 Hom.: 0 AF XY: 0.0000125 AC XY: 1 AN XY: 79954

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000237

GnomAD4 exome AF: 7.21e-7 AC: 1 AN: 1387182 Hom.: 0 Cov.: 30 AF XY: 0.00000146 AC XY: 1 AN XY: 682664

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000174

GnomAD4 genome Cov.: 32

Alfa AF: 0.000111 Hom.: 0

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

Nov 12, 2021

The c.559G>A (p.A187T) alteration is located in exon 5 (coding exon 5) of the C6orf163 gene. This alteration results from a G to A substitution at nucleotide position 559, causing the alanine (A) at amino acid position 187 to be replaced by a threonine (T). 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	0.082
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	2.0
DANN	Benign	0.80
DEOGEN2	Benign	0.0034	T;.
Eigen	Benign	-0.57
Eigen_PC	Benign	-0.63
FATHMM_MKL	Benign	0.064	N
LIST_S2	Benign	0.39	T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.086	T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.3	L;.
MutationTaster	Benign	1.0	N;N
PROVEAN	Benign	-0.66	N;.
REVEL	Benign	0.074
Sift	Benign	0.43	T;.
Sift4G	Benign	0.45	T;T
Vest4		0.051
MutPred		0.30		Loss of helix (P = 0.0017);.;
MVP		0.89
ClinPred		0.031	T
GERP RS		2.7
Varity_R		0.031
gMVP		0.21

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

LitVar

Other links and lift over

dbSNP: rs1443042883; hg19: chr6-88074683;