chr6-100431775-C-T

Position:

• chr6-100431775-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005068.3(SIM1):​c.999-10817G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.589 in 151,986 control chromosomes in the GnomAD database, including 27,053 homozygotes. 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: 𝑓 0.59 (27053 hom., cov: 32)
• Consequence: SIM1 NM_005068.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.379

Genes affected

SIM1 (HGNC:10882): (SIM bHLH transcription factor 1) SIM1 and SIM2 genes are Drosophila single-minded (sim) gene homologs. SIM1 transcript was detected only in fetal kidney out of various adult and fetal tissues tested. Since the sim gene plays an important role in Drosophila development and has peak levels of expression during the period of neurogenesis,it was proposed that the human SIM gene is a candidate for involvement in certain dysmorphic features (particularly the facial and skull characteristics), abnormalities of brain development, and/or cognitive disability of Down syndrome. [provided by RefSeq, Jul 2008]

SIM1-AS1 (HGNC:40530): (SIM1 antisense RNA 1)

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.743 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SIM1	NM_005068.3	c.999-10817G>A		intron_variant		ENST00000369208.8
SIM1-AS1	XR_942815.4	n.1041+4507C>T		intron_variant, non_coding_transcript_variant
SIM1	NM_001374769.1	c.999-10817G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SIM1	ENST00000369208.8	c.999-10817G>A		intron_variant		1	NM_005068.3	P1
SIM1	ENST00000262901.4	c.999-10817G>A		intron_variant		1		P1
SIM1-AS1	ENST00000411442.1	n.151+4507C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.589 AC: 89494 AN: 151868 Hom.: 27037 Cov.: 32

Gnomad AFR AF: 0.465

Gnomad AMI AF: 0.573

Gnomad AMR AF: 0.532

Gnomad ASJ AF: 0.604

Gnomad EAS AF: 0.524

Gnomad SAS AF: 0.764

Gnomad FIN AF: 0.665

Gnomad MID AF: 0.560

Gnomad NFE AF: 0.658

Gnomad OTH AF: 0.592

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.589 AC: 89541 AN: 151986 Hom.: 27053 Cov.: 32 AF XY: 0.591 AC XY: 43907 AN XY: 74264

Gnomad4 AFR AF: 0.465

Gnomad4 AMR AF: 0.532

Gnomad4 ASJ AF: 0.604

Gnomad4 EAS AF: 0.524

Gnomad4 SAS AF: 0.764

Gnomad4 FIN AF: 0.665

Gnomad4 NFE AF: 0.658

Gnomad4 OTH AF: 0.585

Alfa AF: 0.635 Hom.: 40985

Bravo AF: 0.566

Asia WGS AF: 0.626 AC: 2179 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	0.49
DANN	Benign	0.39

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: rs241816; hg19: chr6-100879651; COSMIC: COSV53490266;