NM_003613.4:c.2980C>G

Variant names:

• chr15-65197306-G-C
• rs750503262
• NM_003613.4:c.2980C>G

Variant summary

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

The NM_003613.4(CILP):​c.2980C>G​(p.Arg994Gly) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CILP NM_003613.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.55

Genes affected

CILP (HGNC:1980): (cartilage intermediate layer protein) Major alterations in the composition of the cartilage extracellular matrix occur in joint disease, such as osteoarthrosis. This gene encodes the cartilage intermediate layer protein (CILP), which increases in early osteoarthrosis cartilage. The encoded protein was thought to encode a protein precursor for two different proteins; an N-terminal CILP and a C-terminal homolog of NTPPHase, however, later studies identified no nucleotide pyrophosphatase phosphodiesterase (NPP) activity. The full-length and the N-terminal domain of this protein was shown to function as an IGF-1 antagonist. An allelic variant of this gene has been associated with lumbar disc disease. [provided by RefSeq, Sep 2010]

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=0.22749177).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CILP	NM_003613.4	c.2980C>G	p.Arg994Gly	missense_variant	Exon 9 of 9	ENST00000261883.6	NP_003604.4
CILP	XM_017022679.2	c.2908C>G	p.Arg970Gly	missense_variant	Exon 8 of 8		XP_016878168.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CILP	ENST00000261883.6	c.2980C>G	p.Arg994Gly	missense_variant	Exon 9 of 9	1	NM_003613.4	ENSP00000261883.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 77

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.37	T
Eigen	Benign	0.094
Eigen_PC	Benign	0.21
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L
PrimateAI	Uncertain	0.55	T
PROVEAN	Uncertain	-3.7	D
REVEL	Benign	0.086
Sift	Benign	0.039	D
Sift4G	Benign	0.071	T
Polyphen		0.36	B
Vest4		0.41
MutPred		0.33		Loss of stability (P = 0.0251);
MVP		0.54
MPC		0.15
ClinPred		0.90	D
GERP RS		3.5
Varity_R		0.42
gMVP		0.76

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

LitVar

Other links and lift over

dbSNP: rs750503262; hg19: chr15-65489644;