12-54000465-A-C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_006897.3(HOXC9):​c.277A>C​(p.Met93Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000225 in 1,603,250 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 2 hom. )

Consequence

HOXC9
NM_006897.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.88

Publications

0 publications found
Variant links:
Genes affected
HOXC9 (HGNC:5130): (homeobox C9) 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 is one of several homeobox HOXC genes located in a cluster on chromosome 12. [provided by RefSeq, Jul 2008]
HOXC6 (HGNC:5128): (homeobox C6) This gene belongs to the homeobox family, members of which 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, HOXC6, is one of several 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. Alternatively spliced transcript variants encoding different isoforms have been identified for HOXC6. Transcript variant two includes the shared exon, and transcript variant one 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: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.18120944).
BS2
High AC in GnomAdExome4 at 32 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HOXC9NM_006897.3 linkc.277A>C p.Met93Leu missense_variant Exon 1 of 2 ENST00000303450.5 NP_008828.1 P31274A0A024RAZ6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HOXC9ENST00000303450.5 linkc.277A>C p.Met93Leu missense_variant Exon 1 of 2 1 NM_006897.3 ENSP00000302836.4 P31274
ENSG00000273049ENST00000513209.1 linkc.166+14455A>C intron_variant Intron 1 of 1 3 ENSP00000476742.1 V9GYH0

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000423
AC:
10
AN:
236612
AF XY:
0.0000461
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000221
AC:
32
AN:
1450926
Hom.:
2
Cov.:
31
AF XY:
0.0000263
AC XY:
19
AN XY:
722324
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33470
American (AMR)
AF:
0.00
AC:
0
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.000313
AC:
27
AN:
86230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43062
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111710
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60216
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000263
AC:
4
AN:
152324
Hom.:
0
Cov.:
33
AF XY:
0.0000268
AC XY:
2
AN XY:
74494
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41578
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000497
AC:
6

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Feb 17, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.277A>C (p.M93L) alteration is located in exon 1 (coding exon 1) of the HOXC9 gene. This alteration results from a A to C substitution at nucleotide position 277, causing the methionine (M) at amino acid position 93 to be replaced by a leucine (L). 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
0.13
BayesDel_addAF
Benign
-0.062
T
BayesDel_noAF
Uncertain
-0.020
CADD
Benign
22
DANN
Benign
0.83
DEOGEN2
Benign
0.076
T;T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.12
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.81
.;T
M_CAP
Uncertain
0.18
D
MetaRNN
Benign
0.18
T;T
MetaSVM
Uncertain
-0.15
T
MutationAssessor
Uncertain
2.2
M;M
PhyloP100
3.9
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.39
Sift
Benign
0.58
T;T
Sift4G
Benign
0.67
T;T
Polyphen
0.0050
B;B
Vest4
0.49
MutPred
0.56
Gain of catalytic residue at T90 (P = 0.0196);Gain of catalytic residue at T90 (P = 0.0196);
MVP
0.87
MPC
0.75
ClinPred
0.078
T
GERP RS
4.0
PromoterAI
-0.17
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.33
Mutation Taster
=93/7
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: rs575257503; hg19: chr12-54394249; API