11-66531014-C-G

Variant names:

• chr11-66531014-C-G
• rs770105141
• NM_024649.5:c.1594C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_024649.5(BBS1):​c.1594C>G​(p.Arg532Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts 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. R532Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BBS1 NM_024649.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.884
• Publications: 0 publications found

Genes affected

BBS1 (HGNC:966): (Bardet-Biedl syndrome 1) Mutations in this gene have been observed in patients with the major form (type 1) of Bardet-Biedl syndrome. The encoded protein may play a role in eye, limb, cardiac and reproductive system development. [provided by RefSeq, Jul 2008]

ENSG00000256349 (HGNC:):

ZDHHC24 (HGNC:27387): (zinc finger DHHC-type containing 24) Predicted to enable protein-cysteine S-palmitoyltransferase activity. Predicted to be involved in peptidyl-L-cysteine S-palmitoylation and protein targeting to membrane. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus and endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29286385).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024649.5. 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
	BBS1	NM_024649.5	MANE Select	c.1594C>G	p.Arg532Gly	missense	Exon 15 of 17	NP_078925.3
	ZDHHC24	NM_001348571.2		c.560-1526G>C		intron	N/A	NP_001335500.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BBS1	ENST00000318312.12	TSL:1 MANE Select	c.1594C>G	p.Arg532Gly	missense	Exon 15 of 17	ENSP00000317469.7
	ENSG00000256349	ENST00000419755.3	TSL:2	c.1705C>G	p.Arg569Gly	missense	Exon 15 of 17	ENSP00000398526.3
	BBS1	ENST00000393994.4	TSL:1	c.1207C>G	p.Arg403Gly	missense	Exon 12 of 13	ENSP00000377563.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.073
BayesDel_addAF	Uncertain	0.088	D
BayesDel_noAF	Benign	-0.11
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.59	D
Eigen	Benign	-0.40
Eigen_PC	Benign	-0.30
FATHMM_MKL	Benign	0.45	N
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.21	D
MetaRNN	Benign	0.29	T
MetaSVM	Uncertain	0.41	D
MutationAssessor	Benign	1.4	L
PhyloP100		0.88
PrimateAI	Benign	0.37	T
PROVEAN	Uncertain	-3.4	D
REVEL	Uncertain	0.36
Sift	Benign	0.10	T
Sift4G	Benign	0.16	T
Polyphen		0.0010	B
Vest4		0.32
MutPred		0.37		Gain of loop (P = 0.0079)
MVP		0.84
MPC		0.28
ClinPred		0.85	D
GERP RS		2.6
Varity_R		0.28
gMVP		0.59
Mutation Taster		=84/16	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: rs770105141; hg19: chr11-66298485;