chr4-186274242-A-G

Position:

• chr4-186274242-A-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PS1_Moderate PM1 PM2 PP3_Strong

The NM_000128.4(F11):​c.452A>G​(p.Tyr151Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt. Synonymous variant affecting the same amino acid position (i.e. Y151Y) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: F11 NM_000128.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1 O:1
• Conservation: PhyloP100: 1.79

Genes affected

F11 (HGNC:3529): (coagulation factor XI) This gene encodes coagulation factor XI of the blood coagulation cascade. This protein is present in plasma as a zymogen, which is a unique plasma coagulation enzyme because it exists as a homodimer consisting of two identical polypeptide chains linked by disulfide bonds. During activation of the plasma factor XI, an internal peptide bond is cleaved by factor XIIa (or XII) in each of the two chains, resulting in activated factor XIa, a serine protease composed of two heavy and two light chains held together by disulfide bonds. This activated plasma factor XI triggers the middle phase of the intrisic pathway of blood coagulation by activating factor IX. Defects in this factor lead to Rosenthal syndrome, a blood coagulation abnormality. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PS1: Transcript NM_000128.4 (F11) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
• PM1: In a disulfide_bond (size 29) in uniprot entity FA11_HUMAN there are 9 pathogenic changes around while only 0 benign (100%) in NM_000128.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.985

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
F11	NM_000128.4	c.452A>G	p.Tyr151Cys	missense_variant	5/15	ENST00000403665.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
F11	ENST00000403665.7	c.452A>G	p.Tyr151Cys	missense_variant	5/15	1	NM_000128.4	P1
F11	ENST00000492972.6	c.452A>G	p.Tyr151Cys	missense_variant	5/5	2
F11	ENST00000514715.1	n.324A>G		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.0000150 AC: 22 AN: 1461892 Hom.: 0 Cov.: 31 AF XY: 0.0000193 AC XY: 14 AN XY: 727248

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000198

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000370 Hom.: 0

Bravo AF: 0.00000378

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jul 27, 2023

Variant summary: F11 c.452A>G (p.Tyr151Cys) results in a non-conservative amino acid change located in the Apple domain (IPR000177) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant was absent in 251302 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.452A>G has been reported in the literature in at-least one compound heterozygous and several heterozygous individuals affected with Hereditary factor XI deficiency disease (example: Hill_F2005, Mitchell_2006). These data do not allow any conclusion about variant significance. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 15953011, 16835901). No submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided Other:1

not provided, no classification provided

literature only

UniProtKB/Swiss-Prot

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.30
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.92	D;D
Eigen	Benign	0.15
Eigen_PC	Benign	-0.053
FATHMM_MKL	Benign	0.62	D
LIST_S2	Uncertain	0.95	D;D
M_CAP	Pathogenic	0.29	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Uncertain	0.70	D
MutationAssessor	Pathogenic	3.1	M;.
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-4.2	D;D
REVEL	Pathogenic	0.68
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;.
Vest4		0.59
MutPred		0.92		Loss of helix (P = 0.0068);Loss of helix (P = 0.0068);
MVP		1.0
MPC		0.56
ClinPred		0.99	D
GERP RS		1.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.91
gMVP		0.94

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: rs281875273; hg19: chr4-187195396;