19-41353006-T-TAGCAGCAGCAGC

Variant names:

• chr19-41353006-T-TAGCAGCAGCAGC
• rs281865483
• NM_000660.7:c.38_39insGCTGCTGCTGCT

Variant summary

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

The NM_000660.7(TGFB1):​c.38_39insGCTGCTGCTGCT​(p.Leu13_Pro14insLeuLeuLeuLeu) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TGFB1 NM_000660.7 disruptive_inframe_insertion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.808
• Publications: 0 publications found

Genes affected

TGFB1 (HGNC:11766): (transforming growth factor beta 1) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate a latency-associated peptide (LAP) and a mature peptide, and is found in either a latent form composed of a mature peptide homodimer, a LAP homodimer, and a latent TGF-beta binding protein, or in an active form consisting solely of the mature peptide homodimer. The mature peptide may also form heterodimers with other TGFB family members. This encoded protein regulates cell proliferation, differentiation and growth, and can modulate expression and activation of other growth factors including interferon gamma and tumor necrosis factor alpha. This gene is frequently upregulated in tumor cells, and mutations in this gene result in Camurati-Engelmann disease. [provided by RefSeq, Aug 2016]

TMEM91 (HGNC:32393): (transmembrane protein 91) Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Predicted to be integral component of membrane. Predicted to be active in intracellular membrane-bounded organelle and membrane. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000255730 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000660.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFB1	NM_000660.7	MANE Select	c.38_39insGCTGCTGCTGCT	p.Leu13_Pro14insLeuLeuLeuLeu	disruptive_inframe_insertion	Exon 1 of 7	NP_000651.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFB1	ENST00000221930.6	TSL:1 MANE Select	c.38_39insGCTGCTGCTGCT	p.Leu13_Pro14insLeuLeuLeuLeu	disruptive_inframe_insertion	Exon 1 of 7	ENSP00000221930.4
	TMEM91	ENST00000539627.5	TSL:1	c.-30+1813_-30+1814insAGCAGCAGCAGC		intron	N/A	ENSP00000441900.1
	TGFB1	ENST00000600196.2	TSL:5	c.38_39insGCTGCTGCTGCT	p.Leu13_Pro14insLeuLeuLeuLeu	disruptive_inframe_insertion	Exon 1 of 6	ENSP00000504008.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.81

Splicing

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

Other links and lift over

dbSNP: rs281865483; hg19: chr19-41858911;