NM_000143.4:c.309C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000143.4(FH):c.309C>T(p.Ala103Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00497 in 1,613,946 control chromosomes in the GnomAD database, including 397 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. A103A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.027 ( 229 hom., cov: 32)

Exomes 𝑓: 0.0027 ( 168 hom. )

Consequence

FH
NM_000143.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:19

Conservation

PhyloP100: 0.876

Publications

9 publications found

Variant links:

Genes affected

FH (HGNC:3700): (fumarate hydratase) The protein encoded by this gene is an enzymatic component of the tricarboxylic acid (TCA) cycle, or Krebs cycle, and catalyzes the formation of L-malate from fumarate. It exists in both a cytosolic form and an N-terminal extended form, differing only in the translation start site used. The N-terminal extended form is targeted to the mitochondrion, where the removal of the extension generates the same form as in the cytoplasm. It is similar to some thermostable class II fumarases and functions as a homotetramer. Mutations in this gene can cause fumarase deficiency and lead to progressive encephalopathy. [provided by RefSeq, Jul 2008]

FH Gene-Disease associations (from GenCC):

hereditary leiomyomatosis and renal cell cancer
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
fumaric aciduria
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
pheochromocytoma-paraganglioma
Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
leiomyosarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
hereditary pheochromocytoma-paraganglioma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

FH links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 1-241513672-G-A is Benign according to our data. Variant chr1-241513672-G-A is described in ClinVar as Benign. ClinVar VariationId is 137373.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.876 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0913 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000143.4. 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
	FH	NM_000143.4	MANE Select	c.309C>T	p.Ala103Ala	synonymous	Exon 3 of 10	NP_000134.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FH	ENST00000366560.4	TSL:1 MANE Select	c.309C>T	p.Ala103Ala	synonymous	Exon 3 of 10	ENSP00000355518.4
FH	ENST00000958409.1		c.309C>T	p.Ala103Ala	synonymous	Exon 3 of 10	ENSP00000628468.1
FH	ENST00000932939.1		c.309C>T	p.Ala103Ala	synonymous	Exon 3 of 10	ENSP00000602998.1

Frequencies

GnomAD3 genomes

AF:

0.0266

AC:

4042

AN:

152030

Hom.:

225

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0935

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00753

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.0163

GnomAD2 exomes

AF:

0.00692

AC:

1741

AN:

251446

AF XY:

0.00490

show subpopulations

Gnomad AFR exome

AF:

0.0948

Gnomad AMR exome

AF:

0.00425

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000176

Gnomad OTH exome

AF:

0.00456

GnomAD4 exome

AF:

0.00271

AC:

3962

AN:

1461798

Hom.:

168

Cov.:

AF XY:

0.00235

AC XY:

1710

AN XY:

727196

show subpopulations

African (AFR)

AF:

0.0986

AC:

3300

AN:

33470

American (AMR)

AF:

0.00492

AC:

220

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26130

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39690

South Asian (SAS)

AF:

0.0000812

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00225

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000845

AC:

AN:

1111954

Other (OTH)

AF:

0.00538

AC:

325

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

193

386

579

772

965

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

208

312

416

520

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0267

AC:

4063

AN:

152148

Hom.:

229

Cov.:

AF XY:

0.0259

AC XY:

1925

AN XY:

74392

show subpopulations

African (AFR)

AF:

0.0937

AC:

3891

AN:

41510

American (AMR)

AF:

0.00759

AC:

116

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5180

South Asian (SAS)

AF:

0.000415

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10566

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000265

AC:

AN:

67992

Other (OTH)

AF:

0.0161

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

178

356

533

711

889

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

120

160

200

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0120

Hom.:

Bravo

AF:

0.0309

Asia WGS

AF:

0.00635

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000296

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

not specified (5)

Hereditary leiomyomatosis and renal cell cancer (4)

Fumarase deficiency (2)

Hereditary cancer-predisposing syndrome (2)

Fumarase deficiency;C1708350:Hereditary leiomyomatosis and renal cell cancer (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Benign

0.57

PhyloP100

0.88

Mutation Taster

=99/1

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over