11-59124357-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Strong BP6_Moderate BS2

The NM_198947.4(FAM111B):c.260G>A(p.Gly87Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000223 in 1,613,708 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 Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000023 (0 hom.)
• Consequence: FAM111B NM_198947.4 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.73

Genes affected

FAM111B (HGNC:24200): (FAM111 trypsin like peptidase B) This gene encodes a protein with a trypsin-like cysteine/serine peptidase domain in the C-terminus. Mutations in this gene are associated with an autosomal dominant form of hereditary fibrosing poikiloderma (HFP). Affected individuals display mottled pigmentation, telangiectasia, epidermal atrophy, tendon contractures, and progressive pulmonary fibrosis. Alternative splicing results in multiple transcript variants encoding distinct isoforms. A paralog of this gene which also has a trypsin‐like peptidase domain, FAM111A, is located only 16 kb from this gene on human chromosome 11q12.1. [provided by RefSeq, Apr 2014]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.01902309).
• BP6: Variant 11-59124357-G-A is Benign according to our data. Variant chr11-59124357-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2517222.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomAdExome at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM111B	NM_198947.4	c.260G>A	p.Gly87Glu	missense_variant	4/4	ENST00000343597.4
FAM111B	NM_001142703.2	c.170G>A	p.Gly57Glu	missense_variant	3/3
FAM111B	NM_001142704.2	c.170G>A	p.Gly57Glu	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAM111B	ENST00000343597.4	c.260G>A	p.Gly87Glu	missense_variant	4/4	1	NM_198947.4	P2

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152096 Hom.: 0 Cov.: 33

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: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000399 AC: 10 AN: 250900 Hom.: 0 AF XY: 0.0000664 AC XY: 9 AN XY: 135596

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000294

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000882

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000226 AC: 33 AN: 1461494 Hom.: 0 Cov.: 33 AF XY: 0.0000303 AC XY: 22 AN XY: 727036

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: 0.000278

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.0000662

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152214 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74430

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000415

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000508 Hom.: 0

ExAC AF: 0.0000577 AC: 7

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 02, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.076
BayesDel_addAF	Benign	-0.45	T
BayesDel_noAF	Benign	-0.58
Cadd	Benign	0.0020
Dann	Benign	0.37
Eigen	Benign	-1.9
Eigen_PC	Benign	-2.0
FATHMM_MKL	Benign	0.00021	N
LIST_S2	Benign	0.22	T;.;T;.;T
M_CAP	Benign	0.0059	T
MetaRNN	Benign	0.019	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.26	T
PROVEAN	Benign	1.0	N;N;N;N;.
REVEL	Benign	0.038
Sift	Benign	0.56	T;T;T;T;.
Sift4G	Benign	1.0	T;T;T;T;T
Polyphen		0.0	.;.;.;B;B
Vest4		0.018
MutPred		0.39		.;.;.;Gain of ubiquitination at K91 (P = 0.0388);Gain of ubiquitination at K91 (P = 0.0388);
MVP		0.21
MPC		0.063
ClinPred		0.026	T
GERP RS		-6.3
Varity_R		0.023
gMVP		0.078

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: rs550771267; hg19: chr11-58891830;