Genetic Variant NM_005334.3:c.2691G>A (chrX-153956356-C-T) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_005334.3(HCFC1):c.2691G>A(p.Ala897Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000454 in 1,210,831 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 16 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 25)

Exomes 𝑓: 0.000048 ( 0 hom. 16 hem. )

Consequence

HCFC1
NM_005334.3 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -2.86

Variant links:

Genes affected

HCFC1 (HGNC:4839): (host cell factor C1) This gene is a member of the host cell factor family and encodes a protein with five Kelch repeats, a fibronectin-like motif, and six HCF repeats, each of which contains a highly specific cleavage signal. This nuclear coactivator is proteolytically cleaved at one of the six possible sites, resulting in the creation of an N-terminal chain and the corresponding C-terminal chain. The final form of this protein consists of noncovalently bound N- and C-terminal chains. The protein is involved in control of the cell cycle and transcriptional regulation during herpes simplex virus infection. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

HCFC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.72).

BP6

Variant X-153956356-C-T is Benign according to our data. Variant chrX-153956356-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211131.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BP7

Synonymous conserved (PhyloP=-2.86 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 16 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HCFC1	NM_005334.3 link	c.2691G>A	p.Ala897Ala	synonymous_variant	Exon 16 of 26	ENST00000310441.12	NP_005325.2	P51610-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HCFC1	ENST00000310441.12 link	c.2691G>A	p.Ala897Ala	synonymous_variant	Exon 16 of 26	1	NM_005334.3	ENSP00000309555.7		P51610-1
HCFC1	ENST00000369984.4 link	c.2691G>A	p.Ala897Ala	synonymous_variant	Exon 16 of 26	5		ENSP00000359001.4		A6NEM2

Frequencies

GnomAD3 genomes

AF:

0.0000177

AC:

AN:

112973

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

35125

show subpopulations

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:

0.0000375

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000441

AC:

AN:

181250

Hom.:

AF XY:

0.0000297

AC XY:

AN XY:

67300

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000738

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000863

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000483

AC:

AN:

1097858

Hom.:

Cov.:

AF XY:

0.0000440

AC XY:

AN XY:

363284

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000331

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000582

Gnomad4 OTH exome

AF:

0.0000434

GnomAD4 genome

AF:

0.0000177

AC:

AN:

112973

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

35125

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000375

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 17, 2014

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Methylmalonic acidemia with homocystinuria, type cblX

Benign:1

Mar 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.72

CADD

Benign

0.080

DANN

Benign

0.57

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over