12-54034476-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018953.4(HOXC5):​c.653G>A​(p.Ser218Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,613,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

HOXC5
NM_018953.4 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.70

Publications

0 publications found
Variant links:
Genes affected
HOXC5 (HGNC:5127): (homeobox C5) This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, which are located on different chromosomes and consist of 9 to 11 genes arranged in tandem. This gene, HOXC5, is one of several homeobox HOXC genes located in a cluster on chromosome 12. Three genes, HOXC5, HOXC4 and HOXC6, share a 5' non-coding exon. Transcripts may include the shared exon spliced to the gene-specific exons, or they may include only the gene-specific exons. Two alternatively spliced variants have been described for HOXC5. The transcript variant which includes the shared exon apparently doesn't encode a protein. The protein-coding transcript variant contains gene-specific exons only. [provided by RefSeq, Jul 2008]
HOXC4 (HGNC:5126): (homeobox C4) This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, which are located on different chromosomes and consist of 9 to 11 genes arranged in tandem. This gene, HOXC4, is one of several homeobox HOXC genes located in a cluster on chromosome 12. Three genes, HOXC5, HOXC4 and HOXC6, share a 5' non-coding exon. Transcripts may include the shared exon spliced to the gene-specific exons, or they may include only the gene-specific exons. Two alternatively spliced variants that encode the same protein have been described for HOXC4. Transcript variant one includes the shared exon, and transcript variant two includes only gene-specific exons. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22350281).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HOXC5NM_018953.4 linkc.653G>A p.Ser218Asn missense_variant Exon 2 of 2 ENST00000312492.3 NP_061826.1 Q00444
HOXC5NR_003084.3 linkn.726G>A non_coding_transcript_exon_variant Exon 2 of 2
HOXC4NM_014620.6 linkc.-124+17062G>A intron_variant Intron 1 of 3 NP_055435.2 P09017A0A024RB51Q86TF7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HOXC5ENST00000312492.3 linkc.653G>A p.Ser218Asn missense_variant Exon 2 of 2 1 NM_018953.4 ENSP00000309336.2 Q00444
ENSG00000273049ENST00000513209.1 linkc.365G>A p.Ser122Asn missense_variant Exon 2 of 2 3 ENSP00000476742.1 V9GYH0
ENSG00000273046ENST00000512206.1 linkn.504G>A non_coding_transcript_exon_variant Exon 2 of 2 1
HOXC4ENST00000303406.4 linkc.-124+17062G>A intron_variant Intron 1 of 3 1 ENSP00000305973.4 P09017

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152250
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000955
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250976
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461672
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727128
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53344
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5706
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111960
Other (OTH)
AF:
0.00
AC:
0
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000657
AC:
10
AN:
152250
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41470
American (AMR)
AF:
0.0000654
AC:
1
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68040
Other (OTH)
AF:
0.000955
AC:
2
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Feb 22, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.653G>A (p.S218N) alteration is located in exon 2 (coding exon 2) of the HOXC5 gene. This alteration results from a G to A substitution at nucleotide position 653, causing the serine (S) at amino acid position 218 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.025
.;T
Eigen
Benign
0.13
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.69
T;T
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.22
T;T
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
-0.025
.;N
PhyloP100
5.7
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-1.9
.;N
REVEL
Uncertain
0.31
Sift
Uncertain
0.0030
.;D
Sift4G
Uncertain
0.056
T;T
Polyphen
0.92
.;P
Vest4
0.093
MVP
0.64
MPC
0.30
ClinPred
0.45
T
GERP RS
4.3
Varity_R
0.41
gMVP
0.59
Mutation Taster
=82/18
polymorphism

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

Other links and lift over

dbSNP: rs765585861; hg19: chr12-54428260; API