12-54033462-A-T

Variant names:

Variant summary

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

The NM_018953.4(HOXC5):c.340A>T(p.Ser114Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000207 in 1,446,700 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: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

HOXC5
NM_018953.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.35

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]

HOXC5 links:

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]

HOXC4 links:

ENSG00000273049 (HGNC:):

ENSG00000273049 links:

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=0.21593666).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HOXC5	NM_018953.4 link	c.340A>T	p.Ser114Cys	missense_variant	Exon 1 of 2	ENST00000312492.3	NP_061826.1	Q00444
HOXC4	NM_014620.6 link	c.-124+16048A>T		intron_variant	Intron 1 of 3		NP_055435.2	P09017A0A024RB51Q86TF7
HOXC5	NR_003084.3 link	n.528-816A>T		intron_variant	Intron 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HOXC5	ENST00000312492.3 link	c.340A>T	p.Ser114Cys	missense_variant	Exon 1 of 2	1	NM_018953.4	ENSP00000309336.2	Q00444
HOXC4	ENST00000303406.4 link	c.-124+16048A>T		intron_variant	Intron 1 of 3	1		ENSP00000305973.4	P09017
ENSG00000273049	ENST00000513209.1 link	c.167-816A>T		intron_variant	Intron 1 of 1	3		ENSP00000476742.1	V9GYH0
ENSG00000273046	ENST00000512206.1 link	n.306-816A>T		intron_variant	Intron 1 of 1	1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000207

AC:

AN:

1446700

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

718884

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33314

American (AMR)

AF:

0.00

AC:

AN:

42782

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25870

East Asian (EAS)

AF:

0.00

AC:

AN:

39274

South Asian (SAS)

AF:

0.00

AC:

AN:

84970

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49760

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4526

European-Non Finnish (NFE)

AF:

0.00000271

AC:

AN:

1106494

Other (OTH)

AF:

0.00

AC:

AN:

59710

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000283

Hom.:

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 25, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.340A>T (p.S114C) alteration is located in exon 1 (coding exon 1) of the HOXC5 gene. This alteration results from a A to T substitution at nucleotide position 340, causing the serine (S) at amino acid position 114 to be replaced by a cysteine (C). 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

0.089

BayesDel_addAF

Uncertain

0.030

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.027

Eigen

Benign

0.029

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.81

M_CAP

Benign

0.077

MetaRNN

Benign

0.22

MetaSVM

Uncertain

-0.093

MutationAssessor

Benign

1.1

PhyloP100

1.4

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-1.4

REVEL

Uncertain

0.31

Sift

Benign

0.057

Sift4G

Uncertain

0.048

Polyphen

0.56

Vest4

0.29

MVP

0.98

MPC

0.27

ClinPred

0.42

GERP RS

3.7

PromoterAI

-0.026

Neutral

(source)

Varity_R

0.13

gMVP

0.39

Mutation Taster

=90/10

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

12-54033462-A-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over