Incidental Mutation 'I2289:Heg1'
ID595
Institutional Source Beutler Lab
Gene Symbol Heg1
Ensembl Gene ENSMUSG00000075254
Gene Nameheart development protein with EGF-like domains 1
Synonyms5530401I02Rik, 9530025L16Rik, LOC268884, 4632417D23Rik
Accession Numbers

Genbank: NM_175256.5

Is this an essential gene? Probably non essential (E-score: 0.168) question?
Stock #I2289 (G3) of strain 633
Quality Score
Status Validated
Chromosome16
Chromosomal Location33684370-33771576 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 33763459 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Threonine at position 1212 (I1212T)
Ref Sequence ENSEMBL: ENSMUSP00000155944 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000126532] [ENSMUST00000128105] [ENSMUST00000152782] [ENSMUST00000232568]
Predicted Effect probably damaging
Transcript: ENSMUST00000126532
AA Change: I1236T

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000119790
Gene: ENSMUSG00000075254
AA Change: I1236T

DomainStartEndE-ValueType
signal peptide 1 30 N/A INTRINSIC
low complexity region 53 66 N/A INTRINSIC
low complexity region 68 80 N/A INTRINSIC
low complexity region 175 190 N/A INTRINSIC
low complexity region 265 282 N/A INTRINSIC
low complexity region 471 480 N/A INTRINSIC
low complexity region 486 502 N/A INTRINSIC
low complexity region 556 575 N/A INTRINSIC
low complexity region 637 682 N/A INTRINSIC
low complexity region 868 888 N/A INTRINSIC
EGF 944 979 4e-5 SMART
EGF_CA 981 1019 1.01e-10 SMART
EGF_like 1139 1187 6.81e1 SMART
transmembrane domain 1204 1226 N/A INTRINSIC
PDB:4HDQ|C 1312 1337 2e-10 PDB
Predicted Effect possibly damaging
Transcript: ENSMUST00000128105
AA Change: I37T

PolyPhen 2 Score 0.462 (Sensitivity: 0.89; Specificity: 0.90)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000146518
Predicted Effect probably damaging
Transcript: ENSMUST00000152782
AA Change: I981T

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000123686
Gene: ENSMUSG00000075254
AA Change: I981T

DomainStartEndE-ValueType
signal peptide 1 30 N/A INTRINSIC
low complexity region 53 66 N/A INTRINSIC
low complexity region 68 104 N/A INTRINSIC
low complexity region 170 183 N/A INTRINSIC
low complexity region 185 202 N/A INTRINSIC
low complexity region 301 320 N/A INTRINSIC
low complexity region 382 427 N/A INTRINSIC
low complexity region 613 633 N/A INTRINSIC
EGF 689 724 4e-5 SMART
EGF_CA 726 764 1.01e-10 SMART
EGF_like 884 932 6.81e1 SMART
transmembrane domain 949 971 N/A INTRINSIC
PDB:4HDQ|C 1057 1082 1e-10 PDB
Predicted Effect noncoding transcript
Transcript: ENSMUST00000152832
Predicted Effect probably damaging
Transcript: ENSMUST00000232568
AA Change: I1212T

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
Meta Mutation Damage Score 0.35 question?
Coding Region Coverage
  • 1x: 87.8%
  • 3x: 75.8%
Het Detection Efficiency55.8%
Validation Efficiency 88% (46/52)
MGI Phenotype PHENOTYPE: Mice homozygous for a knock-out allele exhibit impaired integrity of the heart, blood vessels and lymphatic vessels, resulting in hemopericardium, lung hemorrhage, lymphangiectasis, and chylous ascites, as well as embryonic and postnatal lethality. [provided by MGI curators]
Allele List at MGI

All alleles(6) : Targeted, knock-out(3) Gene trapped(3)

Other mutations in this stock
Total: 21 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamts12 T A 15: 11,071,808 L146Q probably benign Homo
Adgrv1 A G 13: 81,437,524 L4607P probably damaging Het
Amelx A G X: 169,178,013 probably null Homo
Ankfy1 A G 11: 72,730,485 K199R probably benign Het
Arfgef1 T C 1: 10,173,253 K1024E probably damaging Het
Bank1 T A 3: 136,054,418 D782V probably damaging Homo
Csmd1 A T 8: 15,912,381 I3271K probably benign Homo
Fat1 A G 8: 45,024,996 I2360V probably benign Homo
Gldc G A 19: 30,147,176 R241* probably null Het
Golgb1 A G 16: 36,898,542 H270R probably benign Het
Hes1 T A 16: 30,065,881 S53R probably damaging Het
Ibsp G A 5: 104,302,487 R57Q possibly damaging Homo
Lrp1b A T 2: 41,122,932 I2001K probably damaging Het
Nf1 G A 11: 79,547,776 R2181H probably damaging Het
Nrcam C A 12: 44,564,315 H567Q probably benign Homo
Olfr1350 A T 7: 6,570,819 Y276F probably damaging Het
Olfr642 T C 7: 104,049,754 Y200C probably damaging Homo
Rraga T C 4: 86,576,285 F123L probably damaging Het
Spam1 A G 6: 24,796,478 I143V probably benign Het
Synj2 A G 17: 6,022,267 probably benign Homo
T A T 17: 8,438,642 T112S probably benign Homo
Other mutations in Heg1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00966:Heg1 APN 16 33710607 missense probably damaging 0.98
IGL01133:Heg1 APN 16 33727287 missense probably benign 0.01
IGL01410:Heg1 APN 16 33725566 missense possibly damaging 0.95
IGL01561:Heg1 APN 16 33766668 missense probably benign 0.27
IGL02449:Heg1 APN 16 33738725 critical splice donor site probably null
IGL02523:Heg1 APN 16 33738622 missense probably damaging 1.00
IGL02794:Heg1 APN 16 33726622 missense probably damaging 0.99
IGL03240:Heg1 APN 16 33727413 missense probably benign 0.02
R0089:Heg1 UTSW 16 33763615 missense probably damaging 1.00
R0116:Heg1 UTSW 16 33735658 splice site probably benign
R0514:Heg1 UTSW 16 33726756 missense possibly damaging 0.86
R0589:Heg1 UTSW 16 33731707 missense probably damaging 1.00
R0942:Heg1 UTSW 16 33760803 missense probably damaging 1.00
R1084:Heg1 UTSW 16 33706997 missense probably benign 0.26
R1109:Heg1 UTSW 16 33763591 missense probably damaging 1.00
R1375:Heg1 UTSW 16 33726876 missense possibly damaging 0.75
R1375:Heg1 UTSW 16 33727309 missense possibly damaging 0.60
R1550:Heg1 UTSW 16 33735553 missense probably damaging 1.00
R1720:Heg1 UTSW 16 33707179 missense probably benign 0.44
R1739:Heg1 UTSW 16 33738583 missense possibly damaging 0.94
R2068:Heg1 UTSW 16 33727590 missense probably benign 0.14
R2397:Heg1 UTSW 16 33742479 missense probably damaging 0.99
R4353:Heg1 UTSW 16 33710477 missense probably benign 0.41
R4419:Heg1 UTSW 16 33727435 missense probably benign 0.23
R4420:Heg1 UTSW 16 33727435 missense probably benign 0.23
R4779:Heg1 UTSW 16 33719772 missense probably benign 0.41
R5066:Heg1 UTSW 16 33738671 missense probably benign 0.41
R5227:Heg1 UTSW 16 33763591 missense probably damaging 1.00
R5494:Heg1 UTSW 16 33725434 missense probably benign 0.44
R5645:Heg1 UTSW 16 33706963 missense probably benign
R5708:Heg1 UTSW 16 33742404 missense probably damaging 0.99
R5934:Heg1 UTSW 16 33726919 missense probably damaging 1.00
R6074:Heg1 UTSW 16 33727203 missense possibly damaging 0.49
R6374:Heg1 UTSW 16 33727129 missense possibly damaging 0.86
R6398:Heg1 UTSW 16 33766775 missense probably damaging 0.99
R6774:Heg1 UTSW 16 33738268 missense probably damaging 1.00
R6843:Heg1 UTSW 16 33719526 missense probably benign 0.41
R7091:Heg1 UTSW 16 33726720 missense probably benign 0.01
R7183:Heg1 UTSW 16 33738550 splice site probably null
R7186:Heg1 UTSW 16 33731664 missense probably damaging 1.00
R7294:Heg1 UTSW 16 33726489 missense probably damaging 0.99
R7304:Heg1 UTSW 16 33760790 missense possibly damaging 0.52
R7405:Heg1 UTSW 16 33763449 missense possibly damaging 0.66
X0066:Heg1 UTSW 16 33727416 missense probably benign 0.16
Nature of Mutation

DNA sequencing using the SOLiD technique identified a T to C transition at position 3088 of the Heg1 transcript in exon 16 of 17 exons using Genbank record NM_175256.5.  Multiple transcripts of the Heg1 gene are displayed on Ensembl and Vega.  The mutated nucleotide causes an isoleucine to threonine substitution at amino acid 981 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method.

Protein Function and Prediction

The Heg1 gene encodes a 1082 amino acid novel type I transmembrane receptor. Homozygous null mice display partial penetrance of prenatal and postnatal lethality with abnormal heart development, hemorrhages, and leaky lymphatic vessels. The HEG1 protein contains three calcium-binding EGF-like domains in its extracellular region (residues 689-724, 726-764, and 884-932) using SMART analysis.

 

The I981T alteration occurs in the cytoplasmic region of the protein.

Posted On2011-03-07