Menu
GeneBe

X-11114909-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_005333.5(HCCS):​c.175C>T​(p.Arg59Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000649 in 1,202,710 control chromosomes in the GnomAD database, including 1 homozygotes. There are 20 hemizygotes in GnomAD. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R59S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000089 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000062 ( 1 hom. 19 hem. )

Consequence

HCCS
NM_005333.5 missense

Scores

2
7
7

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.92
Variant links:
Genes affected
HCCS (HGNC:4837): (holocytochrome c synthase) The protein encoded by this gene is an enzyme that covalently links a heme group to the apoprotein of cytochrome c. Defects in this gene are a cause of microphthalmia syndromic type 7 (MCOPS7). Three transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High Hemizygotes in GnomAdExome4 at 19 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HCCSNM_005333.5 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/7 ENST00000380762.5
HCCSNM_001122608.3 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/7
HCCSNM_001171991.3 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HCCSENST00000380762.5 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/71 NM_005333.5 P1
HCCSENST00000380763.7 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/71 P1
HCCSENST00000321143.8 linkuse as main transcriptc.175C>T p.Arg59Cys missense_variant 3/72 P1

Frequencies

GnomAD3 genomes
AF:
0.0000535
AC:
6
AN:
112106
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34276
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000188
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000559
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00133
GnomAD3 exomes
AF:
0.0000927
AC:
17
AN:
183460
Hom.:
1
AF XY:
0.0000736
AC XY:
5
AN XY:
67894
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000729
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000289
Gnomad SAS exome
AF:
0.000105
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000855
Gnomad OTH exome
AF:
0.000441
GnomAD4 exome
AF:
0.0000624
AC:
68
AN:
1090550
Hom.:
1
Cov.:
29
AF XY:
0.0000533
AC XY:
19
AN XY:
356172
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000568
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000331
Gnomad4 SAS exome
AF:
0.000148
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000275
Gnomad4 OTH exome
AF:
0.000545
GnomAD4 genome
AF:
0.0000892
AC:
10
AN:
112160
Hom.:
0
Cov.:
23
AF XY:
0.0000291
AC XY:
1
AN XY:
34340
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000188
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000560
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00394
Alfa
AF:
0.0000563
Hom.:
2
Bravo
AF:
0.0000756
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeOct 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.60
D;D;D
FATHMM_MKL
Benign
0.33
N
M_CAP
Pathogenic
0.74
D
MetaRNN
Uncertain
0.46
T;T;T
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Pathogenic
3.2
M;M;M
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-1.3
N;N;N
REVEL
Uncertain
0.47
Sift
Uncertain
0.0090
D;D;D
Sift4G
Uncertain
0.013
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.40
MutPred
0.57
Loss of sheet (P = 0.0483);Loss of sheet (P = 0.0483);Loss of sheet (P = 0.0483);
MVP
0.80
MPC
0.54
ClinPred
0.23
T
GERP RS
4.2
Varity_R
0.53
gMVP
0.49

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: rs200354469; hg19: chrX-11133029; API