Incidental Mutation 'R0047:Rtel1'
ID16153
Institutional Source Beutler Lab
Gene Symbol Rtel1
Ensembl Gene ENSMUSG00000038685
Gene Nameregulator of telomere elongation helicase 1
SynonymsNhl, Rtel, KIAA1088, C20ORF41
MMRRC Submission 038341-MU
Accession Numbers

Ncbi RefSeq: NM_001001882.3, NM_001166665.1, NM_001166666.1, NM_001166667.1, NM_001166668.1; MGI: 2139369

Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R0047 (G1)
Quality Score
Status Validated
Chromosome2
Chromosomal Location181319739-181356616 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to G at 181323405 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Methionine at position 146 (I146M)
Ref Sequence ENSEMBL: ENSMUSP00000104443 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000048608] [ENSMUST00000054622] [ENSMUST00000098971] [ENSMUST00000108814] [ENSMUST00000108815] [ENSMUST00000153112]
Predicted Effect probably damaging
Transcript: ENSMUST00000048608
AA Change: I146M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000043563
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
DEXDc 13 292 9.88e-3 SMART
HELICc 563 717 1.07e-62 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000054622
AA Change: I146M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000053120
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
DEXDc 13 292 9.88e-3 SMART
HELICc 563 717 1.07e-62 SMART
low complexity region 1075 1092 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000098971
AA Change: I146M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000096571
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
DEXDc 13 292 9.88e-3 SMART
HELICc 563 717 1.07e-62 SMART
low complexity region 1036 1053 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000108814
AA Change: I146M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000104442
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
DEXDc 13 292 9.88e-3 SMART
HELICc 563 717 1.07e-62 SMART
low complexity region 1069 1086 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000108815
AA Change: I146M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000104443
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
DEXDc 13 292 9.88e-3 SMART
HELICc 563 717 1.07e-62 SMART
low complexity region 1030 1047 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000139608
Predicted Effect noncoding transcript
Transcript: ENSMUST00000146273
Predicted Effect probably damaging
Transcript: ENSMUST00000153112
AA Change: I146M

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000118810
Gene: ENSMUSG00000038685
AA Change: I146M

DomainStartEndE-ValueType
Pfam:ResIII 14 101 1.8e-7 PFAM
Pfam:DEAD_2 111 161 3.3e-16 PFAM
Meta Mutation Damage Score 0.0272 question?
Coding Region Coverage
  • 1x: 89.2%
  • 3x: 86.3%
  • 10x: 78.8%
  • 20x: 65.9%
Validation Efficiency 95% (110/116)
MGI Phenotype Strain: 3772371; 3052235
Lethality: E11-E12
FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a DNA helicase which functions in the stability, protection and elongation of telomeres and interacts with proteins in the shelterin complex known to protect telomeres during DNA replication. Mutations in this gene have been associated with dyskeratosis congenita and Hoyerall-Hreidarsson syndrome. Read-through transcription of this gene into the neighboring downstream gene, which encodes tumor necrosis factor receptor superfamily, member 6b, generates a non-coding transcript. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2013]
PHENOTYPE: Homozygous null mice display embryonic lethality with abnormal development of the neural tube, brain, heart, vasculature, placenta, and allantois and chromosomal abnormalities in differentiating cells. [provided by MGI curators]
Allele List at MGI

All alleles(33) : Targeted(5) Gene trapped(28)

Other mutations in this stock
Total: 71 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110002E22Rik A G 3: 138,066,264 T405A probably damaging Het
4932438A13Rik T A 3: 36,908,192 L481M possibly damaging Het
Acer1 A T 17: 56,955,624 D175E possibly damaging Het
Adamts9 G A 6: 92,905,306 probably benign Het
Amigo3 T C 9: 108,054,658 S427P probably benign Het
Arid4a T G 12: 71,075,419 L858W probably damaging Het
Bbox1 A G 2: 110,268,302 F310S probably damaging Het
Bmper T A 9: 23,406,686 C534S probably damaging Het
Cacna1d T G 14: 30,346,790 probably benign Het
Capn12 G A 7: 28,890,387 probably null Het
Chchd1 T C 14: 20,704,163 S48P possibly damaging Het
Cnot7 A G 8: 40,495,921 probably benign Het
Cux1 T C 5: 136,363,253 probably benign Het
Cyp2b19 T A 7: 26,766,826 D351E probably benign Het
Dctn1 G T 6: 83,182,632 G31* probably null Het
Duox1 T A 2: 122,346,641 probably benign Het
Egflam T G 15: 7,253,430 E382A possibly damaging Het
Ext1 T C 15: 53,345,146 N73S probably benign Het
Glg1 A T 8: 111,165,582 M866K probably damaging Het
Gm3333 A G 13: 62,274,471 noncoding transcript Het
Golm1 T A 13: 59,645,100 H197L probably benign Het
Gtse1 A G 15: 85,862,378 K132E probably damaging Het
Gxylt2 A T 6: 100,733,378 probably benign Het
Hrc T A 7: 45,336,689 S421R probably benign Het
Ighg2c T A 12: 113,288,168 probably benign Het
Ihh A G 1: 74,946,591 I245T probably benign Het
Ilf3 T A 9: 21,388,714 M65K possibly damaging Het
Kif9 A G 9: 110,485,038 I33V probably benign Het
Lama1 A T 17: 67,795,186 probably benign Het
Lamb1 T C 12: 31,278,601 I188T possibly damaging Het
Lpp T A 16: 24,661,800 probably benign Het
Mark2 A C 19: 7,283,577 probably benign Het
Mmp3 T C 9: 7,451,910 probably benign Het
Mthfd1l T A 10: 3,978,727 probably benign Het
Mtr A T 13: 12,222,226 S569T probably damaging Het
Myh13 T A 11: 67,367,237 S1752T probably benign Het
Myo5a T A 9: 75,156,207 L565H probably damaging Het
Numa1 A G 7: 102,009,453 K296E probably damaging Het
Olfr1477 A G 19: 13,502,589 E82G probably benign Het
Olfr201 C T 16: 59,269,211 G152D probably damaging Het
Olfr613 A T 7: 103,552,322 Y179F probably damaging Het
Pla2g2c T C 4: 138,743,590 probably benign Het
Pnpla7 A T 2: 25,011,606 E548V probably damaging Het
Ppm1m C A 9: 106,196,696 E273* probably null Het
Ppp2r1b C T 9: 50,861,573 R117* probably null Het
Psg-ps1 A G 7: 17,677,881 noncoding transcript Het
Rabgap1l G A 1: 160,231,789 probably benign Het
Rapgef6 T A 11: 54,546,378 M49K possibly damaging Het
Rnf219 T A 14: 104,503,344 probably null Het
Sdr9c7 A T 10: 127,903,672 M219L probably benign Het
Serpinb1a A T 13: 32,850,276 L44Q probably damaging Het
Slc13a4 A G 6: 35,287,362 I190T possibly damaging Het
Slc46a2 A G 4: 59,914,392 L177P probably damaging Het
Slc47a2 C T 11: 61,336,242 V167M possibly damaging Het
Snrnp200 C T 2: 127,234,954 probably benign Het
Snx13 C A 12: 35,101,124 probably benign Het
Snx25 C T 8: 46,041,365 A828T probably damaging Het
Spic A G 10: 88,675,941 L151P probably damaging Het
Sptb G T 12: 76,622,950 Q535K probably damaging Het
Ssu2 G A 6: 112,374,820 H315Y probably damaging Het
Stk32a T C 18: 43,313,378 probably benign Het
Tcaf2 A G 6: 42,629,613 I469T probably benign Het
Tln2 A G 9: 67,240,672 probably benign Het
Top2a T A 11: 98,997,856 I1260L probably benign Het
Treml1 C A 17: 48,364,980 S91* probably null Het
Trmt11 T C 10: 30,535,243 N418S probably benign Het
Ttf1 A G 2: 29,084,655 Y801C probably damaging Het
Usp34 C T 11: 23,464,403 A2782V probably benign Het
Vps4a T C 8: 107,036,701 L29P probably damaging Het
Wdfy3 A G 5: 101,944,033 I480T probably damaging Het
Ywhag A T 5: 135,911,299 V147E probably damaging Het
Other mutations in Rtel1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01420:Rtel1 APN 2 181354401 missense probably benign 0.16
IGL01957:Rtel1 APN 2 181349313 unclassified probably benign
IGL02247:Rtel1 APN 2 181351341 nonsense probably null
IGL02414:Rtel1 APN 2 181335972 missense probably benign 0.01
IGL02448:Rtel1 APN 2 181336037 missense probably benign 0.00
IGL03053:Rtel1 APN 2 181351944 missense probably benign 0.02
IGL03059:Rtel1 APN 2 181350183 missense probably benign 0.01
IGL03326:Rtel1 APN 2 181355561 unclassified probably benign
PIT4283001:Rtel1 UTSW 2 181346890 missense probably benign 0.00
R0047:Rtel1 UTSW 2 181323405 missense probably damaging 1.00
R0051:Rtel1 UTSW 2 181350656 nonsense probably null
R0051:Rtel1 UTSW 2 181350656 nonsense probably null
R0147:Rtel1 UTSW 2 181321046 missense probably damaging 1.00
R0148:Rtel1 UTSW 2 181321046 missense probably damaging 1.00
R0316:Rtel1 UTSW 2 181356002 missense possibly damaging 0.87
R0628:Rtel1 UTSW 2 181351881 missense probably benign 0.03
R0940:Rtel1 UTSW 2 181322803 missense probably benign 0.36
R1165:Rtel1 UTSW 2 181334939 missense probably benign 0.26
R1213:Rtel1 UTSW 2 181351335 missense probably benign 0.01
R1291:Rtel1 UTSW 2 181351043 missense probably damaging 1.00
R1353:Rtel1 UTSW 2 181349231 missense probably benign
R1398:Rtel1 UTSW 2 181335865 intron probably null
R1796:Rtel1 UTSW 2 181352103 missense probably benign 0.01
R1973:Rtel1 UTSW 2 181351626 missense probably benign 0.04
R2033:Rtel1 UTSW 2 181351863 nonsense probably null
R2144:Rtel1 UTSW 2 181323706 missense probably damaging 0.97
R2265:Rtel1 UTSW 2 181354368 missense probably damaging 1.00
R2269:Rtel1 UTSW 2 181336003 missense probably benign 0.00
R2416:Rtel1 UTSW 2 181340531 missense possibly damaging 0.66
R2865:Rtel1 UTSW 2 181349972 missense probably benign 0.36
R3508:Rtel1 UTSW 2 181322409 missense probably benign 0.32
R4242:Rtel1 UTSW 2 181349934 missense probably damaging 1.00
R4377:Rtel1 UTSW 2 181355796 missense probably damaging 1.00
R4702:Rtel1 UTSW 2 181352169 missense probably benign 0.30
R4706:Rtel1 UTSW 2 181323746 critical splice donor site probably null
R4817:Rtel1 UTSW 2 181355935 missense possibly damaging 0.82
R5020:Rtel1 UTSW 2 181322514 splice site probably null
R5069:Rtel1 UTSW 2 181355492 missense probably benign 0.03
R5222:Rtel1 UTSW 2 181346983 intron probably benign
R5268:Rtel1 UTSW 2 181340561 missense probably benign 0.03
R5291:Rtel1 UTSW 2 181352095 missense possibly damaging 0.47
R5588:Rtel1 UTSW 2 181352100 missense probably benign
R5682:Rtel1 UTSW 2 181349972 missense probably benign 0.19
R5796:Rtel1 UTSW 2 181340506 missense probably benign 0.26
R5931:Rtel1 UTSW 2 181330815 nonsense probably null
R6249:Rtel1 UTSW 2 181351682 missense probably damaging 1.00
R6465:Rtel1 UTSW 2 181335940 missense possibly damaging 0.68
R6616:Rtel1 UTSW 2 181352786 missense possibly damaging 0.68
R6800:Rtel1 UTSW 2 181322463 missense probably benign 0.31
R6835:Rtel1 UTSW 2 181355953 missense probably benign 0.04
R6917:Rtel1 UTSW 2 181338277 makesense probably null
R7264:Rtel1 UTSW 2 181351861 missense not run
R7381:Rtel1 UTSW 2 181330815 nonsense probably null
Protein Function and Prediction

The DNA helicase RTEL-1 is required to prevent excess crossovers during meiosis (1), genome stability (2), tumor avoidance (3), telomere maintenance (2;4;5), and DNA repair (6). Barber et al. determined that RTEL-1 negatively regulates recombination by disassembling D loop recombination intermediates during DNA repair (3). Vannier et al. have shown that RTEL-1 removes telomeric DNA secondary structures to function in the prevention of telomere fragility and loss (5). Without the expression of RTEL-1, T loops are inappropriately resolved, resulting in loss of the telomere as a circle (5). RTEL-1 also counteracts telomeric G-quadruplex DNA structures to ensure the stability of the telomere (4;5).  Deletion of Rtel1 results in an increased number of sister chromatid exchange events, revealing that Rtel-1 functions in homologous recombination (2).

Expression/Localization

Northern blot analysis detected Rtel in spleen, thymus, Peyer patch, kidney, and intestine, but not in brain, heart, lung, skeletal muscle, skin, and white fat tissue (7)Rtel is highly expressed in the testis, mainly in spermatogonia and meiotic spermatocytes (7). Rtel1 localizes transiently at telomeres (2).

Background

Rtel1tm1.1Hdin/tm1.1Hdin; MGI:3772371

involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * FVB/N * SJL

Homozygous null mice display embryonic lethality (by E11.5) with abnormal development of the neural tube, brain, heart, vasculature, placenta, and allantois and chromosomal abnormalities in differentiating cells (8).

 

Rtel1tm1Pml/tm1Pml; MGI:3052235

involves: 129S1/Sv * 129X1/SvJ

Homozygous null mice also display embryonic lethality (by E11.5) with abnormal development of the neural tube, floor plate, brain, neural crest, placenta, muscle, and heart as well as abnormal cell differentiation with shorter telomere length and chromosomal abnormalities in differentiating cells (7). Homozygote embryos are decreased in size by E8.5 (7).

References
Posted On2013-01-08
Science WriterAnne Murray