rs1256941432

Variant names:

• chr7-3301602-C-A
• rs1256941432
• NM_152744.4:c.16C>A

Your query was ambiguous. Multiple possible variants found:

• chr7-3301602-C-A
• chr7-3301602-C-T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_152744.4(SDK1):​c.16C>A​(p.Arg6Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000012 in 830,608 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0000012 (0 hom.)
• Consequence: SDK1 NM_152744.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.783
• Publications: 0 publications found

Genes affected

SDK1 (HGNC:19307): (sidekick cell adhesion molecule 1) The protein encoded by this gene is a member of the immunoglobulin superfamily. The protein contains six immunoglobulin-like domains and thirteen fibronectin type III domains. Fibronectin type III domains are present in both extracellular and intracellular proteins and tandem repeats are known to contain binding sites for DNA, heparin and the cell surface. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]

SDK1-AS1 (HGNC:40883): (SDK1 antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.46).
• BP7: Synonymous conserved (PhyloP=-0.783 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152744.4. 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
	SDK1	NM_152744.4	MANE Select	c.16C>A	p.Arg6Arg	synonymous	Exon 1 of 45	NP_689957.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SDK1	ENST00000404826.7	TSL:1 MANE Select	c.16C>A	p.Arg6Arg	synonymous	Exon 1 of 45	ENSP00000385899.2	Q7Z5N4-1
	SDK1	ENST00000389531.7	TSL:5	c.16C>A	p.Arg6Arg	synonymous	Exon 1 of 44	ENSP00000374182.3	F8W6X9
	SDK1-AS1	ENST00000437354.2	TSL:3	n.224+627G>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 0.00000120 AC: 1 AN: 830608 Hom.: 0 Cov.: 25 AF XY: 0.00 AC XY: 0 AN XY: 383708

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

African (AFR) AF: 0.00 AC: 0 AN: 15714

American (AMR) AF: 0.00 AC: 0 AN: 984

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 5138

East Asian (EAS) AF: 0.00 AC: 0 AN: 3618

South Asian (SAS) AF: 0.0000595 AC: 1 AN: 16808

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 274

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1616

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 759252

Other (OTH) AF: 0.00 AC: 0 AN: 27204

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	4.4
DANN	Benign	0.86
PhyloP100		-0.78
PromoterAI		0.10	Neutral

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: rs1256941432; hg19: chr7-3341234;