Full data view for gene TSC2

The curator’s expert opinion on the classification of a variant, can be found in the
SUMMARY record. Regarding the classification, please note that where there are several
records of the same variant, the classification of that variant may differ depending on the
submitter’s conclusion.
Information The variants shown are described using the NM_000548.3 transcript reference sequence.

30 entries on 1 page. Showing entries 1 - 30.
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-?/. - c.5068+27_5069-47del r.? p.? - - Unknown - likely benign g.2137969_2138002del g.2087968_2088001del PKD1(NM_001009944.3):c.*1770_*1803del, TSC2(NM_000548.3):c.5051_5068+16del, TSC2(NM_000548.3):c.5068+27_5069-47del (p.(=)), TSC2(NM_000548.5):c.505... - TSC2_000144 VKGL data sharing initiative Nederland - - - CLASSIFICATION record - - - - - - - - - - - - - - - - - - - - - - -
-/. - c.5068+27_5069-47del r.? p.? - - Unknown - benign g.2137969_2138002del g.2087968_2088001del PKD1(NM_001009944.3):c.*1770_*1803del, TSC2(NM_000548.3):c.5051_5068+16del, TSC2(NM_000548.3):c.5068+27_5069-47del (p.(=)), TSC2(NM_000548.5):c.505... - TSC2_000144 VKGL data sharing initiative Nederland - - - CLASSIFICATION record - - - - - - - - - - - - - - - - - - - - - - -
-/. - c.5068+27_5069-47del r.? p.? - - Unknown - benign g.2137969_2138002del g.2087968_2088001del PKD1(NM_001009944.3):c.*1770_*1803del, TSC2(NM_000548.3):c.5051_5068+16del, TSC2(NM_000548.3):c.5068+27_5069-47del (p.(=)), TSC2(NM_000548.5):c.505... - TSC2_000144 VKGL data sharing initiative Nederland - - - CLASSIFICATION record - - - - - - - - - - - - - - - - - - - - - - -
-?/. - c.5068+27_5069-47del r.? p.? - - Unknown - likely benign g.2137969_2138002del g.2087968_2088001del PKD1(NM_001009944.3):c.*1770_*1803del, TSC2(NM_000548.3):c.5051_5068+16del, TSC2(NM_000548.3):c.5068+27_5069-47del (p.(=)), TSC2(NM_000548.5):c.505... - TSC2_000144 VKGL data sharing initiative Nederland - - - CLASSIFICATION record - - - - - - - - - - - - - - - - - - - - - - -
+/. 39i c.5068+27_5069-47del r.spl p.? - - Unknown - pathogenic g.2137969_2138002del g.2087968_2088001del NM_000548.3:c.5051_c.5084+16delCCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG - TSC2_000144 34bp intronic deletion [caggaaaggtagggccgggtggggccctgcagtg]; found with a somatic TP53 variant reported as p.Ala88Thr PubMed: Wu 2019 - - Germline ? - - - - DNA SEQ, SEQ-NG-I Blood 23 renal cancer predisposition genes screened, variant confirmed by Sanger SEQ RCC - PubMed: Wu 2019 positive family history of cancers; grandfather with lung cancer, father with gastric cancer; patient deceased 13 months after diagnosis M ? China - - - - - 1 Rosemary Ekong
-/- 39i c.5068+27_5069-47del r.[5068_5069insGTAGGGCCGGGTGGGGCCCTGCAGTGTGGCGCCAAGAGCCCTGGGCCTGGCGTGACCACCAAGTCTCCCCAG];[=] p.Lys1689_Asp1690insGlyArgAlaGlyTrpGlyProAlaValTrpArgGlnGluProTrpAlaTrpArgAspHisGlnValSerPro GAP domain unlikely to affect splicing Unknown - benign g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 34bp intronic deletion [caggaaaggtagggccgggtggggccctgcagtg] causes abnormal splicing and the retention of 72bp from intron 39, resulting in the in-frame insertion of 24 new amino acids; variant seen in affected and unaffected individuals - - rs137854209 SUMMARY record - 593/285634 alleles, 1 homozygote BsgI- - - - - - - - - - - - - - - - - - - - -
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Paternal (confirmed) - benign g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 rare variant; affects splicing (see Roberts, 2003); 34bp deletion of intronic sequence (caggaaaggtagggccgggtggggccctgcagtg); found with TSC1 frameshift c.2672del , TSC2 c.5161-28_5161-25del and TSC2 3'UTR c.*71C>T unpublished - - Germline - - -BsgI - - DNA SEQ Blood - TSC - unpublished 2 affected individuals (parent and child) in 2 generations; proband has TSC1 frameshift c.2672del , TSC2 c.5068+27_5069-47del, TSC2 c.5161-28_5161-25del and TSC2 3'UTR c.*71C>T; affected parent has TSC1 frameshift c.2672del and is a mosaic; proband has inherited TSC2 c.5068+27_5069-47del from the other parent; parents not tested for TSC2 c.*71C>T ? - - - - - - - 2 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5068+27_5068+60del34 - TSC2_000144 34bp intronic deletion (caggaaaggtagggccgggtggggccctgcagtg); found with TSC1 nonsense variant c.1525C>T PubMed: Sancak, 2005, PubMed: Jansen, 2008 - - Germline - - -BsgI - - DNA SEQ Blood - TSC - PubMed: Sancak, 2005; PubMed: Jansen, 2008 diagnosed with definite TSC; patient has TSC1 nonsense variant c.1525C>T and TSC2 intronic variant c.5068+27_5069-47del ? - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del 5086+26del34bp - TSC2_000144 splice variant; 34bp intronic deletion [caggaaaggtagggccgggtggggccctgcagtg] unpublished - - Germline - - -BsgI - - DNA DHPLC Blood - TSC - unpublished 2 cases; different patients from those in Jones, 1999 ? - - - - - - - 2 Rosemary Ekong
+/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - pathogenic g.2137969_2138002del g.2087968_2088001del 34bp deletion, exon 38/intron 38 - TSC2_000144 rare variants; affects splicing (see Roberts, 2003) described as disease-causing; 34bp intronic deletion [caggaaaggtagggccgggtggggccctgcagtg] PubMed: Jones, 1999 - - Germline - - -BsgI - - DNA HD, SSCA Blood - TSC 112 PubMed: Jones, 1999 variant also seen in a different patient by Beauchamp et.al. 1998 ? - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Maternal (confirmed) - benign g.2137969_2138002del g.2087968_2088001del 5068+27_5068+60del34 - TSC2_000144 splice variant; 34bp deletion of intronic sequence (caggaaaggtagggccgggtggggccctgcagtg) unpublished - - Germline - - -BsgI - - DNA SEQ Blood - TSC - unpublished definite disease-causing variant not seen in proband; variant inherited from one of the parents ? - - - - - - - 2 Rosemary Ekong
?/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - VUS g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 34bp intronic deletion (caggaaaggtagggccgggtggggccctgcagtg) unpublished - - Germline - - -BsgI - - DNA DHPLC, SEQ Blood - TSC - unpublished No other family member tested M - - - - - - - 1 Rosemary Ekong
?/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Paternal (confirmed) - VUS g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 34bp intronic deletion (caggaaaggtagggccgggtggggccctgcagtg) unpublished - - Germline - - -BsgI - - DNA DHPLC, SEQ Blood - TSC - unpublished variant is present in one parent and absent in the other parent F - - - - - - - 1 Rosemary Ekong
+/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Maternal (confirmed) - pathogenic g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 rare variant (see Roberts, 2003) described as disease-causing; 34bp intronic deletion [caggaaaggtagggccgggtggggccctgcagtg]; reported insertion of 24aa (wrong in table as 34aa); variant reported absent in 100 CEPH chrs; no other TSC variant found PubMed: Niida, 1999 - - Germline - - -BsgI - - DNA SSCA Blood - TSC Family 280 PubMed: Niida, 1999 unaffected mother has TSC2 c.c.5068+27_5069-47del and PCR results of mutant allele shows bands of equal intensity in affected child and unaffected mother ? - - - - - - - 2 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5051_5068+16del34 CCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG - TSC2_000144 34bp deletion [caggaaaggtagggccgggtggggccctgcagtg] reported as non-pathogenic; affects splicing; deleted allele produces less TSC2 mRNA compared to wild type; variant proposed to have modifier effect on severity of TSC PubMed: Roberts, 2003 - - Germline - - -BsgI - - DNA, RNA DHPLC, RT-PCR Blood - TSC Patient 4 PubMed: Roberts, 2003 2yr old; originally thought to be sporadic; same DNA change, without mosaicism, found in one unaffected parent; 3rd patient reported here without pathogenic variant found; low level mosaicism in TSC1 or TSC2 considered likely ? - - - - - - - 2 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5051_5068+16del34 [CCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG] - TSC2_000144 34bp deletion [caggaaaggtagggccgggtggggccctgcagtg] reported as non-pathogenic; affects splicing; deleted allele produces less TSC2 mRNA compared to wild type; variant proposed to have modifier effect on severity of TSC PubMed: Roberts, 2003 - - Germline - - -BsgI - - DNA, RNA DHPLC, RT-PCR Blood - TSC Patient 6 PubMed: Roberts, 2003 14yr old; originally thought to be sporadic; same DNA change, without mosaicism, found in one unaffected parent (not specified); 4th patient reported here where no pathogenic variant found; low level mosaicism in TSC1 or TSC2 considered likely ? - - - - - - - 2 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5051_5068+16del34 [CCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG] - TSC2_000144 34bp deletion [caggaaaggtagggccgggtggggccctgcagtg] reported as non-pathogenic; affects splicing; deleted allele produces less TSC2 mRNA compared to wild type; variant proposed to have modifier effect on severity of TSC phenotype PubMed: Roberts, 2003 - - Germline - - -BsgI - - DNA, RNA DHPLC, RT-PCR Blood - TSC Patient 3 PubMed: Roberts, 2003 6yr old; originally thought to be sporadic; same DNA change, without mosaicism, found in one unaffected parent (not specified); no pathogenic variant found in this patient possibly due to low level mosaicism in TSC1 or TSC2 ? - - - - - - - 2 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5051_5068+16del34 [CCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG] - TSC2_000144 34bp deletion [caggaaaggtagggccgggtggggccctgcagtg] reported as non-pathogenic; affects splicing; deleted allele produces 50% less TSC2 mRNA; variant proposed to have modifier effect on TSC disease severity PubMed: Roberts, 2003 - - Germline - - -BsgI - - DNA, RNA DHPLC, RT-PCR Blood - TSC Patient 2 PubMed: Roberts, 2003 3yr old; originally thought to be sporadic; same DNA change and no mosaicism in unaffected parent (not specified); no pathogenic variant found in this patient possibly due to low level mosaicism in TSC1 or TSC2 ? - - - - - - - 2 Rosemary Ekong
+/. 39i c.5068+27_5069-47del r.[=, 5068_5069insGTAGGGCCGGGTGGGGCCCTGCAGTGTGGCGCCAAGAGCCCTGGGCCTGGCGTGACCACCAAGTCTCCCCAG] p.Lys1689_Asp1690insGlyArgAlaGlyTrpGlyProAlaValTrpArgGlnGluProTrpAlaTrpArgAspHisGlnValSerPro GAP domain - Unknown - pathogenic g.2137969_2138002del g.2087968_2088001del IVS38+16del34bp - TSC2_000144 rare variant; affects splicing (see Roberts, 2003); reported as disease-causing; a normally duplicated 34bp tandem repeat deleted in intron 39; aberrant splicing said to cause retention of the remaining 72bp of intron 39 and insertion of novel 24aa PubMed: Mayer, 1999 - - Germline - - - - - DNA, RNA PTT Blood - TSC T87 PubMed: Mayer, 1999 22yr old patient ? - - - - - - - 1 Rosemary Ekong
?/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - VUS g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 34bp intronic deletion (caggaaaggtagggccgggtggggccctgcagtg) unpublished - - Germline - - -BsgI - - DNA DHPLC, SEQ Blood - TSC - unpublished both parents reported negative for the variant F - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Maternal (confirmed) - benign g.2137969_2138002del g.2087968_2088001del 5068+27_5068+60del34 - TSC2_000144 splice variant; 34bp deletion of intronic sequence (caggaaaggtagggccgggtggggccctgcagtg) unpublished - - Germline - - -BsgI - - DNA SEQ Blood - TSC - unpublished proband reported to have a TSC1 mutation (not specified); variant inherited from one parent ? - - - - - - - 2 Rosemary Ekong
-?/. 39i c.5068+27_5069-47del r.(?) p.(=) - - Unknown - likely benign g.2137969_2138002del - c.5068+27_5069-47del34bp, intron 38 - TSC2_000144 34bp intronic deletion of CAGGAAAGGTAGGGCCGGGTGGGGCCCTGCAGTG; found with TSC2 missense c.5094C>A and TSC2 missense c.4859A>G unpublished - - Germline ? - - - - DNA DHPLC, SEQ Blood Diagnostic testing TSC - unpublished No other family member tested M ? - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.(?) p.(=) - - Unknown - benign g.2137969_2138002del g.2087968_2088001del exon 38 - TSC2_000144 34bp deletion of CAGGAAAGGTAGGGCCGGGTGGGGCCCTGCAGTG unpublished - - Germline ? - - - - DNA MCA, SEQ Lung - - - unpublished referral due to poorly differentiated squamous cell carcinoma; parents not tested M ? - - - - - - 1 Rosemary Ekong
+/. 39i c.5068+27_5069-47del r.[=, 5068_5069insGTAGGGCCGGGTGGGGCCCTGCAGTGTGGCGCCAAGAGCCCTGGGCCTGGCGTGACCACCAAGTCTCCCCAG] p.Lys1689_Asp1690insGlyArgAlaGlyTrpGlyProAlaValTrpArgGlnGluProTrpAlaTrpArgAspHisGlnValSerPro GAP domain - Maternal (confirmed) - pathogenic g.2137969_2138002del g.2087968_2088001del IVS38+16del34bp - TSC2_000144 rare variant; affects splicing (see Roberts, 2003); reported as disease-causing; a normally duplicated 34bp tandem repeat deleted in intron 39; aberrant splicing said to cause retention of the remaining 72bp of intron 39 and insertion of novel 24aa PubMed: Mayer, 1999 - - Germline - - - - - DNA, RNA PTT Blood - TSC T65 PubMed: Mayer, 1999 5 yr old patient with clinically confirmed TSC but no features indicated; patient and mildly affected mother have the same variant ? - - - - - - - 2 Rosemary Ekong
+/. 39i c.5068+27_5069-47del r.[=, 5068_5069insGTAGGGCCGGGTGGGGCCCTGCAGTGTGGCGCCAAGAGCCCTGGGCCTGGCGTGACCACCAAGTCTCCCCAG] p.Lys1689_Asp1690insGlyArgAlaGlyTrpGlyProAlaValTrpArgGlnGluProTrpAlaTrpArgAspHisGlnValSerPro GAP domain - Unknown - pathogenic g.2137969_2138002del g.2087968_2088001del IVS38+16del34bp - TSC2_000144 rare variant; affects splicing (see Roberts, 2003); reported as disease-causing; a normally duplicated 34bp tandem repeat deleted in intron 39; aberrant splicing said to cause retention of the remaining 72bp of intron 39 and insertion of novel 24aa PubMed: Mayer, 1999 - - Germline - - -BsgI - - DNA, RNA PTT Blood - TSC T33 PubMed: Mayer, 1999 3yr old patient ? - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Paternal (confirmed) - benign g.2137969_2138002del g.2087968_2088001del 34bp del; 5051-5068+16delCCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG - TSC2_000144 rare variants; affects splicing; normal 34bp tandem repeat [caggaaaggtagggccgggtggggccctgcagtg] deleted in intron 39; 72bp intronic seq added resulting in novel 24aa insertion; less TSC2 mRNA produced; variant suggested to modify severity of TSC PubMed: Beauchamp, 1998, PubMed: Roberts, 2003 - - Germline - - - - - DNA DHPLC Blood - TSC S12-01/Pat. 5 PubMed: Beauchamp, 1998, PubMed: Roberts, 2003 6yr old; same patient reported in both papers; patient has TSC2 intronic variant c.5068+27_5069-47del and TSC2 pathogenic missense c.2086T>C found later; TSC2 c.5068+27_5069-47del, without mosaicism, also found in unaffected father; TSC2 c.2086T>C absent in both parents M - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - benign g.2137969_2138002del g.2087968_2088001del c.5051_5068+16del34 [CCCTGCAGTGCAGGAAAGGTAGGGCCGGGTGGGG] - TSC2_000144 34bp del [caggaaaggtagggccgggtggggccctgcagtg] non-pathogenic splice variant initially reported pathogenic; seen with TSC2 c.2713C>T; aberrant cDNA retains intron 39; deleted allele produces 50% less TSC2 mRNA; variant proposed to modify TSC severity PubMed: Dabora, 2001, PubMed: Franz, 2001, PubMed: Roberts, 2003 - - Germline - - - - - DNA DHPLC Blood - TSC BHM6101/P1 PubMed: Dabora, 2001, PubMed: Franz, 2001, PubMed: Roberts, 2003 21-22yr old patient with clinical diagnosis of TS and asymptomatic lung disease; no FH of TS; no active pulmonary symptoms or suspected diagnosis of LAM on initial presentation; patient had not received specific therapy for LAM; patient has TSC2 intronic variant c.5068+27_5069-47del and TSC2 pathogenic missense c.2713C>T found later; one unaffected parent (not specified) has TSC2 c.5068+27_5069-47del and no evidence of mosaicism; TSC2 c.2713C>T absent in both parents F - - - - - - - 1 Rosemary Ekong
-/. 39i c.5068+27_5069-47del r.[=, 5068_5069insGTAGGGCCGGGTGGGGCCCTGCAGTGTGGCGCCAAGAGCCCTGGGCCTGGCGTGACCACCAAGTCTCCCCAG] p.Lys1689_Asp1690insGlyArgAlaGlyTrpGlyProAlaValTrpArgGlnGluProTrpAlaTrpArgAspHisGlnValSerPro GAP domain - Maternal (confirmed) - benign g.2137969_2138002del g.2087968_2088001del 5068+27_5068+60del34, p.Lys1689_Met1690ins24 - TSC2_000144 splice variant; 34bp deletion of intronic sequence (caggaaaggtagggccgggtggggccctgcagtg); RNA evidence with 50% abnormal splicing and 50% normal splicing; retention of 72bp of intron 39 seen in cDNA resulting in in-frame insertion of 24 new aa unpublished - - Germline - - - - - DNA, RNA SEQ Blood - Healthy/Control - unpublished variant found in an unaffected parent and inherited by an affected child (sibling of the proband); this affected child (sibling of the proband) has also inherited TSC2 c.1853_1946+59dup from the affected parent; TSC2 c.5068+27_5069-47del is absent in the proband of this family; splicing also seen in the healthy parent; RNA from 6/6 families tested ? - - - - - - - 2 Rosemary Ekong
?/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Unknown - VUS g.2137969_2138002del g.2087968_2088001del IVS38+27_IVS38+60 34bp deletion - TSC2_000144 splice variant; 34bp deletion of intronic sequence (caggaaaggtagggccgggtggggccctgcagtg); no variants detected in TSC1 & TSC2 MLPA unpublished - - Germline - - - - - DNA SEQ Blood - TSC - unpublished index has no family history of TS; reported to have possible cortical tuber or focal cortical dysplasia on brain MRI, possible Shagreen patch, ?angiofibroma on one side of nose and 1 hypomelanotic macule; this patient has normal renal MRI, no cardiac findings, no neuro-opthamologic findings, no history of seizures and no developmental delay; no other family members have been tested M - - - - - - - 1 Rosemary Ekong
?/. 39i c.5068+27_5069-47del r.spl p.? GAP domain - Maternal (confirmed) - VUS g.2137969_2138002del g.2087968_2088001del - - TSC2_000144 34bp intronic deletion (caggaaaggtagggccgggtggggccctgcagtg); found with TSC2 in-frame deletion c.1283_1285del unpublished - - Germline - - -BsgI - - DNA DHPLC, SEQ Blood - TSC - unpublished proband has TSC2 in-frame deletion c.1283_1285del and TSC2 intronic deletion c.5068+27_5069-47del; one parent, a grandparent and another relative all have these 2 variants and are affected; the other parent has an affected distant relative who has a different apparently de novo TSC1 variant (not specified); inheritance of TSC2 c.5068+27_5069-47del not indicated M - - - - - - - 4 Rosemary Ekong
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Assessment of functional consequences - Our conclusions on the functional consequences of variants are based on the type of variant, results of in vitro functional tests (doi: 10.1002/humu.21451; doi: 10.1002/humu.22202; doi: 10.1002/humu.23963), population frequencies, output from in silico splice site prediction algorithms, and any clinical/family data available to us. We also have output from protein prediction programs in this database for comparison purposes and they are not considered in our assessment of pathogenicity. PolyPhen Predictions - Note that these results are from PolyPhen-2 and only the HumDiv classification is shown.


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