1-26863919-G-A

Variant names:

• chr1-26863919-G-A
• NM_006142.5:c.707G>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_006142.5(SFN):​c.707G>A​(p.Gly236Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,516 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G236R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SFN NM_006142.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.87
• Publications: 0 publications found

Genes affected

SFN (HGNC:10773): (stratifin) This gene encodes a cell cycle checkpoint protein. The encoded protein binds to translation and initiation factors and functions as a regulator of mitotic translation. In response to DNA damage this protein plays a role in preventing DNA errors during mitosis. [provided by RefSeq, Aug 2017]

ENSG00000304862 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2733205).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006142.5. 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
	SFN	NM_006142.5	MANE Select	c.707G>A	p.Gly236Glu	missense	Exon 1 of 1	NP_006133.1	P31947-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SFN	ENST00000339276.6	TSL:6 MANE Select	c.707G>A	p.Gly236Glu	missense	Exon 1 of 1	ENSP00000340989.4	P31947-1
	ENSG00000304862	ENST00000806706.1		n.93+1124C>T		intron	N/A
	ENSG00000304862	ENST00000806707.1		n.80+1124C>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461516 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727070

⚠️ 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: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26106

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53258

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111858

Other (OTH) AF: 0.00 AC: 0 AN: 60384

⚠️ 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.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.088	T
BayesDel_noAF	Benign	-0.36
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.39	T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.44
FATHMM_MKL	Benign	0.67	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.0060	T
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.49	N
PhyloP100		4.9
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.080
Sift	Benign	0.044	D
Sift4G	Benign	0.20	T
Polyphen		0.83	P
Vest4		0.30
MutPred		0.45		Gain of helix (P = 0.0199)
MVP		0.50
MPC		0.80
ClinPred		0.81	D
GERP RS		5.9
Varity_R		0.18
gMVP		0.38
Mutation Taster		=50/50

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

hg19: chr1-27190410;