chr16-4340985-T-C

Position:

• chr16-4340985-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP5

The NM_016069.11(PAM16):​c.226A>G​(p.Asn76Asp) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,238 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PAM16 NM_016069.11 missense, splice_region
• Scores: Splicing: ADA: 0.9363
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.59

Genes affected

PAM16 (HGNC:29679): (presequence translocase associated motor 16) This gene encodes a mitochondrial protein involved in granulocyte-macrophage colony-stimulating factor (GM-CSF) signaling. This protein also plays a role in the import of nuclear-encoded mitochondrial proteins into the mitochondrial matrix and may be important in reactive oxygen species (ROS) homeostasis. Mutations in this gene cause Megarbane-Dagher-Melike type spondylometaphyseal dysplasia, an early lethal skeletal dysplasia characterized by short stature, developmental delay and other skeletal abnormalities. [provided by RefSeq, May 2017]

CORO7-PAM16 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-4340985-T-C is Pathogenic according to our data. Variant chr16-4340985-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 187811.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr16-4340985-T-C is described in UniProt as null. Variant chr16-4340985-T-C is described in UniProt as null.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PAM16	NM_016069.11	c.226A>G	p.Asn76Asp	missense_variant, splice_region_variant	4/5	ENST00000318059.8	NP_057153.8
CORO7-PAM16	NM_001201479.2	c.2995A>G	p.Asn999Asp	missense_variant, splice_region_variant	30/31		NP_001188408.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAM16	ENST00000318059.8	c.226A>G	p.Asn76Asp	missense_variant, splice_region_variant	4/5	1	NM_016069.11	ENSP00000315693	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461238 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726886

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Autosomal recessive spondylometaphyseal dysplasia, Megarbane type Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

May 01, 2014

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.27	.;T;.;.;.;T;.
Eigen	Uncertain	0.68
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.53	D;D;D;D;D;D;D
MetaSVM	Benign	-0.57	T
MutationAssessor	Pathogenic	3.2	.;M;.;.;.;M;.
MutationTaster	Benign	0.99	D;D;D;D;D;D;D
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-4.0	.;D;.;.;.;.;.
REVEL	Pathogenic	0.69
Sift	Uncertain	0.0060	.;D;.;.;.;.;.
Sift4G	Uncertain	0.0070	D;D;D;D;D;D;T
Polyphen		0.73	.;P;.;.;.;P;.
Vest4		0.57
MutPred		0.58		Loss of methylation at K75 (P = 0.0828);Loss of methylation at K75 (P = 0.0828);.;.;.;Loss of methylation at K75 (P = 0.0828);.;
MVP		0.70
MPC		0.34, 0.20
ClinPred		0.98	D
GERP RS		6.2
Varity_R		0.86
gMVP		0.81

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.94
dbscSNV1_RF	Pathogenic	0.86
SpliceAI score (max)		0.010		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: rs786203989; hg19: chr16-4390986;