19-5587278-G-C

Variant names:

• chr19-5587278-G-C
• rs772716396
• NM_014649.3:c.2827C>G

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_014649.3(SAFB2):​c.2827C>G​(p.Pro943Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000132 in 1,613,126 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00014 (1 hom.)
• Consequence: SAFB2 NM_014649.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.62
• Publications: 0 publications found

Genes affected

SAFB2 (HGNC:21605): (scaffold attachment factor B2) The protein encoded by this gene, along with its paralog (scaffold attachment factor B1), is a repressor of estrogen receptor alpha. The encoded protein binds scaffold/matrix attachment region (S/MAR) DNA and is involved in cell cycle regulation, apoptosis, differentiation, the stress response, and regulation of immune genes. [provided by RefSeq, May 2016]

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.23563242).
• BS2: High AC in GnomAdExome4 at 211 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SAFB2	NM_014649.3	c.2827C>G	p.Pro943Ala	missense_variant	Exon 21 of 21	ENST00000252542.9	NP_055464.1
SAFB2	XM_011528449.4	c.*123C>G		3_prime_UTR_variant	Exon 21 of 21		XP_011526751.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SAFB2	ENST00000252542.9	c.2827C>G	p.Pro943Ala	missense_variant	Exon 21 of 21	1	NM_014649.3	ENSP00000252542.3

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152102 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000322 AC: 8 AN: 248634 AF XY: 0.0000371

Gnomad AFR exome AF: 0.000125

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000537

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000144 AC: 211 AN: 1461024 Hom.: 1 Cov.: 33 AF XY: 0.000144 AC XY: 105 AN XY: 726762

African (AFR) AF: 0.0000299 AC: 1 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44650

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86186

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53148

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5666

European-Non Finnish (NFE) AF: 0.000188 AC: 209 AN: 1111728

Other (OTH) AF: 0.0000166 AC: 1 AN: 60372

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152102 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74318

African (AFR) AF: 0.00 AC: 0 AN: 41426

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 67986

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000264

ExAC AF: 0.0000741 AC: 9

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Aug 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2827C>G (p.P943A) alteration is located in exon 21 (coding exon 21) of the SAFB2 gene. This alteration results from a C to G substitution at nucleotide position 2827, causing the proline (P) at amino acid position 943 to be replaced by an alanine (A). 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	0.073
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	19
DANN	Benign	0.91
DEOGEN2	Benign	0.072	T
Eigen	Benign	-0.096
Eigen_PC	Benign	-0.13
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.0091	T
MetaRNN	Benign	0.24	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N
PhyloP100		1.6
PrimateAI	Benign	0.48	T
PROVEAN	Benign	-0.45	N
REVEL	Benign	0.11
Sift	Benign	0.052	T
Sift4G	Benign	1.0	T
Polyphen		1.0	D
Vest4		0.34
MVP		0.27
MPC		0.11
ClinPred		0.14	T
GERP RS		2.6
Varity_R		0.075
gMVP		0.19
Mutation Taster		=99/1	polymorphism

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: rs772716396; hg19: chr19-5587289;