6-43509775-C-G

Position:

• chr6-43509775-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001012974.4(LRRC73):​c.11G>C​(p.Ser4Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: LRRC73 NM_001012974.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.43

Genes affected

LRRC73 (HGNC:21375): (leucine rich repeat containing 73)

POLR1C (HGNC:20194): (RNA polymerase I and III subunit C) The protein encoded by this gene is a subunit of both RNA polymerase I and RNA polymerase III complexes. The encoded protein is part of the Pol core element. Mutations in this gene have been associated with Treacher Collins syndrome (TCS) and hypomyelinating leukodystrophy 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12373197).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRC73	NM_001012974.4	c.11G>C	p.Ser4Thr	missense_variant	1/6	ENST00000372441.2	NP_001012992.1
LRRC73	NM_001271882.2	c.-98+431G>C		intron_variant			NP_001258811.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRRC73	ENST00000372441.2	c.11G>C	p.Ser4Thr	missense_variant	1/6	1	NM_001012974.4	ENSP00000361518.1
POLR1C	ENST00000428025	c.-130C>G		5_prime_UTR_variant	1/6	4		ENSP00000395401.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 28, 2024

The c.11G>C (p.S4T) alteration is located in exon 1 (coding exon 1) of the LRRC73 gene. This alteration results from a G to C substitution at nucleotide position 11, causing the serine (S) at amino acid position 4 to be replaced by a threonine (T). 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	0.19
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0038	T
Eigen	Benign	-0.50
Eigen_PC	Benign	-0.27
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.23	D
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-0.56	N
REVEL	Benign	0.11
Sift	Uncertain	0.021	D
Sift4G	Benign	0.077	T
Polyphen		0.0020	B
Vest4		0.12
MutPred		0.31		Gain of sheet (P = 0.0149);
MVP		0.043
MPC		0.73
ClinPred		0.70	D
GERP RS		3.8
Varity_R		0.25
gMVP		0.36

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-43477513;