1-27547442-G-C

Variant names:

• chr1-27547442-G-C
• rs2019226046
• NM_001371928.1:c.4674C>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_001371928.1(AHDC1):​c.4674C>G​(p.Pro1558Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000278 in 1,436,626 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P1558P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: AHDC1 NM_001371928.1 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.31
• Publications: 0 publications found

Genes affected

AHDC1 (HGNC:25230): (AT-hook DNA binding motif containing 1) This gene encodes a protein containing two AT-hooks, which likely function in DNA binding. Mutations in this gene were found in individuals with Xia-Gibbs syndrome. [provided by RefSeq, Jun 2014]

AHDC1 Gene-Disease associations (from GenCC):

• AHDC1-related intellectual disability - obstructive sleep apnea - mild dysmorphism syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, ClinGen, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ENSG00000300470 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP6: Variant 1-27547442-G-C is Benign according to our data. Variant chr1-27547442-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 3612278.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.32 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001371928.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AHDC1	NM_001371928.1	MANE Select	c.4674C>G	p.Pro1558Pro	synonymous	Exon 8 of 9	NP_001358857.1	Q5TGY3
	AHDC1	NM_001029882.3		c.4674C>G	p.Pro1558Pro	synonymous	Exon 6 of 7	NP_001025053.1	Q5TGY3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AHDC1	ENST00000673934.1	MANE Select	c.4674C>G	p.Pro1558Pro	synonymous	Exon 8 of 9	ENSP00000501218.1	Q5TGY3
	AHDC1	ENST00000247087.10	TSL:5	c.4674C>G	p.Pro1558Pro	synonymous	Exon 5 of 6	ENSP00000247087.4	Q5TGY3
	AHDC1	ENST00000374011.6	TSL:5	c.4674C>G	p.Pro1558Pro	synonymous	Exon 6 of 7	ENSP00000363123.2	Q5TGY3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000278 AC: 4 AN: 1436626 Hom.: 0 Cov.: 30 AF XY: 0.00000422 AC XY: 3 AN XY: 710188

African (AFR) AF: 0.00 AC: 0 AN: 33106

American (AMR) AF: 0.00 AC: 0 AN: 43780

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25112

East Asian (EAS) AF: 0.00 AC: 0 AN: 39214

South Asian (SAS) AF: 0.00 AC: 0 AN: 84014

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51928

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5682

European-Non Finnish (NFE) AF: 9.14e-7 AC: 1 AN: 1094568

Other (OTH) AF: 0.0000507 AC: 3 AN: 59222

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.67
CADD	Benign	12
DANN	Benign	0.81
PhyloP100		1.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs2019226046; hg19: chr1-27873953;