1-155688262-G-C

Variant names:

• chr1-155688262-G-C
• rs1558323022
• ENST00000368340.10:c.203C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001198903.1(YY1AP1):​c.203C>G​(p.Ser68Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000689 in 1,450,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S68F) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: YY1AP1 NM_001198903.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.07
• Publications: 0 publications found

Genes affected

YY1AP1 (HGNC:30935): (YY1 associated protein 1) Predicted to enable transcription coregulator activity. Involved in cell differentiation; cell population proliferation; and regulation of cell cycle. Located in fibrillar center and nucleoplasm. Colocalizes with Ino80 complex. [provided by Alliance of Genome Resources, Apr 2022]

DAP3 (HGNC:2673): (death associated protein 3) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 28S subunit protein that also participates in apoptotic pathways which are initiated by tumor necrosis factor-alpha, Fas ligand, and gamma interferon. This protein potentially binds ATP/GTP and might be a functional partner of the mitoribosomal protein S27. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. Pseudogenes corresponding to this gene are found on chromosomes 1q and 2q. [provided by RefSeq, Dec 2010]

LOC124904430 (HGNC:):

ACMG classification

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=0.17666408).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001198903.1. 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
	YY1AP1	NM_139119.3	MANE Select	c.-151-61C>G		intron	N/A	NP_620830.1	Q9H869-2
	YY1AP1	NM_001198903.1		c.203C>G	p.Ser68Cys	missense	Exon 1 of 10	NP_001185832.1	Q9H869-9
	YY1AP1	NM_001198904.1		c.203C>G	p.Ser68Cys	missense	Exon 1 of 10	NP_001185833.1	Q9H869-8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	YY1AP1	ENST00000368340.10	TSL:1	c.203C>G	p.Ser68Cys	missense	Exon 1 of 10	ENSP00000357324.5	Q9H869-8
	YY1AP1	ENST00000405763.7	TSL:1	c.203C>G	p.Ser68Cys	missense	Exon 1 of 9	ENSP00000384583.3	B0QZ55
	YY1AP1	ENST00000355499.9	TSL:1 MANE Select	c.-151-61C>G		intron	N/A	ENSP00000347686.4	Q9H869-2

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 6.89e-7 AC: 1 AN: 1450398 Hom.: 0 Cov.: 30 AF XY: 0.00000139 AC XY: 1 AN XY: 720856

African (AFR) AF: 0.00 AC: 0 AN: 33316

American (AMR) AF: 0.00 AC: 0 AN: 42132

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25922

East Asian (EAS) AF: 0.00 AC: 0 AN: 39266

South Asian (SAS) AF: 0.00 AC: 0 AN: 85432

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51730

Middle Eastern (MID) AF: 0.000174 AC: 1 AN: 5750

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1106890

Other (OTH) AF: 0.00 AC: 0 AN: 59960

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.083	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	18
DANN	Uncertain	0.99
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.17
FATHMM_MKL	Benign	0.40	N
LIST_S2	Benign	0.34	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-1.0	T
PhyloP100		2.1
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.12
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.97	D
Vest4		0.26
MutPred		0.23		Loss of disorder (P = 0.0161)
MVP		0.18
MPC		0.16
ClinPred		0.98	D
GERP RS		1.5
PromoterAI		0.020	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
gMVP		0.11
Mutation Taster		=288/12	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

Other links and lift over

dbSNP: rs1558323022; hg19: chr1-155658053;