rs782407440

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005334.3(HCFC1):​c.4475C>T​(p.Pro1492Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,208,907 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 25)
Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

HCFC1
NM_005334.3 missense

Scores

1
4
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.15
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36315304).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HCFC1NM_005334.3 linkc.4475C>T p.Pro1492Leu missense_variant Exon 18 of 26 ENST00000310441.12 NP_005325.2 P51610-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HCFC1ENST00000310441.12 linkc.4475C>T p.Pro1492Leu missense_variant Exon 18 of 26 1 NM_005334.3 ENSP00000309555.7 P51610-1
HCFC1ENST00000369984.4 linkc.4475C>T p.Pro1492Leu missense_variant Exon 18 of 26 5 ENSP00000359001.4 A6NEM2
HCFC1ENST00000444191.5 linkc.197C>T p.Pro66Leu missense_variant Exon 2 of 10 5 ENSP00000399589.1 H7C1C4

Frequencies

GnomAD3 genomes
AF:
0.00000889
AC:
1
AN:
112499
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
34633
show subpopulations
Gnomad AFR
AF:
0.0000323
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000182
AC:
2
AN:
1096408
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
362470
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000889
AC:
1
AN:
112499
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
34633
show subpopulations
Gnomad4 AFR
AF:
0.0000323
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

HCFC1-related disorder Uncertain:1
Jan 13, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The HCFC1 c.4475C>T variant is predicted to result in the amino acid substitution p.Pro1492Leu. This variant was reported in the heterozygous state in a female patient that underwent cobalamin gene panel testing (Abdrabo et al 2020. PubMed ID: 31462756). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Methylmalonic acidemia with homocystinuria, type cblX Uncertain:1
Aug 06, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.34
T;T
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.85
T;T
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;.
PrimateAI
Uncertain
0.79
T
PROVEAN
Uncertain
-3.9
D;D
REVEL
Benign
0.28
Sift
Benign
0.096
T;T
Sift4G
Benign
0.18
T;T
Polyphen
1.0
D;.
Vest4
0.52
MutPred
0.29
Gain of catalytic residue at P1492 (P = 0.0067);Gain of catalytic residue at P1492 (P = 0.0067);
MVP
0.58
MPC
1.5
ClinPred
0.97
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.34
gMVP
0.78

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

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

Other links and lift over

dbSNP: rs782407440; hg19: chrX-153219080; API