10-100348121-C-A

Position:

• chr10-100348121-C-A

Variant summary

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

The NM_005063.5(SCD):​c.85C>A​(p.Gln29Lys) 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 1,461,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SCD NM_005063.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.925

Genes affected

SCD (HGNC:10571): (stearoyl-CoA desaturase) This gene encodes an enzyme involved in fatty acid biosynthesis, primarily the synthesis of oleic acid. The protein belongs to the fatty acid desaturase family and is an integral membrane protein located in the endoplasmic reticulum. Transcripts of approximately 3.9 and 5.2 kb, differing only by alternative polyadenlyation signals, have been detected. A gene encoding a similar enzyme is located on chromosome 4 and a pseudogene of this gene is located on chromosome 17. [provided by RefSeq, Sep 2015]

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=0.17231447).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SCD	NM_005063.5	c.85C>A	p.Gln29Lys	missense_variant	2/6	ENST00000370355.3	NP_005054.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SCD	ENST00000370355.3	c.85C>A	p.Gln29Lys	missense_variant	2/6	1	NM_005063.5	ENSP00000359380.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461580 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727108

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

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

Oct 23, 2024

The c.85C>A (p.Q29K) alteration is located in exon 2 (coding exon 2) of the SCD gene. This alteration results from a C to A substitution at nucleotide position 85, causing the glutamine (Q) at amino acid position 29 to be replaced by a lysine (K). 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	0.068
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	17
DANN	Benign	0.95
DEOGEN2	Benign	0.34	T
Eigen	Benign	-0.42
Eigen_PC	Benign	-0.40
FATHMM_MKL	Benign	0.44	N
LIST_S2	Benign	0.68	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.79	N
REVEL	Benign	0.062
Sift	Benign	0.20	T
Sift4G	Benign	0.34	T
Polyphen		0.19	B
Vest4		0.20
MutPred		0.45		Gain of methylation at Q29 (P = 0.0071);
MVP		0.52
MPC		0.84
ClinPred		0.21	T
GERP RS		3.2
Varity_R		0.20
gMVP		0.70

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: chr10-102107878;