Incidental Mutation 'R7319:Prex2'
ID 568022
Institutional Source Beutler Lab
Gene Symbol Prex2
Ensembl Gene ENSMUSG00000048960
Gene Name phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 2
Synonyms C030045D06Rik, 6230420N16Rik, Depdc2
MMRRC Submission 045415-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.262) question?
Stock # R7319 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 11063689-11373905 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 11232532 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Lysine at position 866 (N866K)
Ref Sequence ENSEMBL: ENSMUSP00000027056 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027056]
AlphaFold Q3LAC4
Predicted Effect probably benign
Transcript: ENSMUST00000027056
AA Change: N866K

PolyPhen 2 Score 0.097 (Sensitivity: 0.93; Specificity: 0.85)
SMART Domains Protein: ENSMUSP00000027056
Gene: ENSMUSG00000048960
AA Change: N866K

DomainStartEndE-ValueType
RhoGEF 19 205 8.61e-45 SMART
PH 238 355 2.43e-12 SMART
DEP 383 456 4.46e-26 SMART
DEP 484 557 6.57e-15 SMART
PDZ 593 666 9.62e-2 SMART
PDZ 677 744 6.37e-8 SMART
low complexity region 1112 1127 N/A INTRINSIC
low complexity region 1498 1507 N/A INTRINSIC
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency 96% (79/82)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene belongs to the phosphatidylinositol 3,4,5-trisphosphate (PIP3)-dependent Rac exchanger (PREX) family, which are Dbl-type guanine-nucleotide exchange factors for Rac family small G proteins. Structural domains of this protein include the catalytic diffuse B-cell lymphoma homology and pleckstrin homology (DHPH) domain, two disheveled, EGL-10, and pleckstrin homology (DEP) domains, two PDZ domains, and a C-terminal inositol polyphosphate-4 phosphatase (IP4P) domain that is found in one of the isoforms. This protein facilitates the exchange of GDP for GTP on Rac1, allowing the GTP-bound Rac1 to activate downstream effectors. Studies also show that the pleckstrin homology domain of this protein interacts with the phosphatase and tensin homolog (PTEN) gene product to inhibit PTEN phosphatase activity, thus activating the phosphoinositide-3 kinase (PI3K) signaling pathway. Conversely, the PTEN gene product has also been shown to inhibit the GEF activity of this protein. This gene plays a role in insulin-signaling pathways, and either mutations or overexpression of this gene have been observed in some cancers. [provided by RefSeq, Apr 2016]
PHENOTYPE: Mice homozygous for gene trapped alleles may exhibit abnormal Purkinje cell dendrite morphology, a mild motor coordination defect that progressively worsens with age, hypoactivity, impaired glucose tolerance and/or insulin resistance. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 81 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
9930012K11Rik A T 14: 70,393,635 (GRCm39) I287N probably benign Het
Aco2 G T 15: 81,787,820 (GRCm39) E223D probably damaging Het
Acsf3 T A 8: 123,539,770 (GRCm39) I466N probably damaging Het
Albfm1 G A 5: 90,719,625 (GRCm39) probably null Het
Aox3 T A 1: 58,191,761 (GRCm39) F438I probably benign Het
Arhgap33 T C 7: 30,225,794 (GRCm39) T591A probably benign Het
Ash1l C T 3: 88,888,694 (GRCm39) A191V probably benign Het
Btg2 T C 1: 134,006,779 (GRCm39) K5E probably benign Het
C1galt1 T A 6: 7,871,150 (GRCm39) Y329N probably damaging Het
Cacna1h A G 17: 25,608,435 (GRCm39) I824T possibly damaging Het
Carmil3 A G 14: 55,731,817 (GRCm39) I182V probably benign Het
Ccdc150 T A 1: 54,302,496 (GRCm39) probably null Het
Chek1 T A 9: 36,633,939 (GRCm39) R129W probably damaging Het
Chrna6 A G 8: 27,896,815 (GRCm39) M354T possibly damaging Het
Cpq A G 15: 33,250,185 (GRCm39) T181A probably benign Het
Csmd2 A T 4: 128,287,472 (GRCm39) Y1069F Het
Defb28 T A 2: 152,361,974 (GRCm39) C45S possibly damaging Het
Dnah1 A G 14: 31,018,551 (GRCm39) Y1360H probably benign Het
Dnah7c T C 1: 46,823,608 (GRCm39) V3749A possibly damaging Het
Dnah7c T A 1: 46,819,935 (GRCm39) D3728E probably benign Het
Dym G A 18: 75,196,245 (GRCm39) probably null Het
Dync2i2 G A 2: 29,928,341 (GRCm39) P95L probably benign Het
Dzip3 A G 16: 48,747,903 (GRCm39) probably null Het
Eef1akmt4 A G 16: 20,436,666 (GRCm39) K163E probably benign Het
Fbrs A G 7: 127,081,985 (GRCm39) T242A possibly damaging Het
Fgfr3 G A 5: 33,885,146 (GRCm39) V87M possibly damaging Het
Fst A T 13: 114,595,068 (GRCm39) C19S probably benign Het
Gm7276 G A 18: 77,273,216 (GRCm39) R173W unknown Het
Gm9195 G A 14: 72,697,929 (GRCm39) H1284Y probably benign Het
Herc6 C A 6: 57,581,074 (GRCm39) T258K probably damaging Het
Hip1r A G 5: 124,137,174 (GRCm39) Y678C probably damaging Het
Ifne A T 4: 88,798,243 (GRCm39) N58K probably damaging Het
Ighv1-26 A T 12: 114,752,163 (GRCm39) H60Q possibly damaging Het
Ints1 A G 5: 139,746,520 (GRCm39) F1276L probably damaging Het
Itprid2 A T 2: 79,466,416 (GRCm39) D82V probably damaging Het
Kcnc4 T A 3: 107,366,100 (GRCm39) E36V probably benign Het
Kcnq2 C T 2: 180,750,895 (GRCm39) G315S probably damaging Het
Kdm4c G A 4: 74,255,200 (GRCm39) V585M probably damaging Het
Klhl26 C T 8: 70,905,592 (GRCm39) R106H probably damaging Het
Kmo T C 1: 175,481,221 (GRCm39) F313S probably damaging Het
Lmtk3 T A 7: 45,443,740 (GRCm39) S808T unknown Het
Lrch3 A G 16: 32,815,363 (GRCm39) T585A probably benign Het
Lrch4 T A 5: 137,637,977 (GRCm39) H86Q Het
Map3k20 A G 2: 72,195,062 (GRCm39) D113G probably damaging Het
Mbd3l1 T C 9: 18,396,417 (GRCm39) S181P probably benign Het
Mccc2 T C 13: 100,104,241 (GRCm39) T303A probably benign Het
Med27 A G 2: 29,303,490 (GRCm39) R147G possibly damaging Het
Mrps5 T A 2: 127,437,762 (GRCm39) S196R possibly damaging Het
Muc21 GGGGTGGGCATAGATCCTGAGGCAGAGCTGGATGCAGTGGTGGTCAGGGTGGG GGGGTGGG 17: 35,932,935 (GRCm39) probably benign Het
Myo16 A T 8: 10,526,185 (GRCm39) probably null Het
Nudt2 A T 4: 41,477,575 (GRCm39) M19L probably benign Het
Pcdha11 C T 18: 37,146,245 (GRCm39) P779S probably benign Het
Phykpl A G 11: 51,489,530 (GRCm39) T379A probably benign Het
Plekha8 A C 6: 54,601,206 (GRCm39) M270L probably benign Het
Plekhg5 A G 4: 152,192,885 (GRCm39) H593R probably benign Het
Polr2a T C 11: 69,637,196 (GRCm39) N293S possibly damaging Het
Pramel32 G A 4: 88,548,184 (GRCm39) P74S probably benign Het
Psme4 A T 11: 30,757,790 (GRCm39) I308L probably benign Het
Ptprb T C 10: 116,177,309 (GRCm39) V1003A probably benign Het
Rbbp8 T A 18: 11,865,269 (GRCm39) D719E probably damaging Het
Rnaset2b A T 17: 7,259,166 (GRCm39) D144V probably benign Het
Senp6 T G 9: 80,033,481 (GRCm39) D662E probably damaging Het
Serpinb3c T C 1: 107,200,817 (GRCm39) N200S possibly damaging Het
Serpinb9g C G 13: 33,672,543 (GRCm39) Y113* probably null Het
Sgf29 T C 7: 126,270,821 (GRCm39) I134T probably benign Het
Sh3bp4 T G 1: 89,080,824 (GRCm39) probably null Het
Stab1 G A 14: 30,862,783 (GRCm39) L2243F probably damaging Het
Sympk T C 7: 18,769,770 (GRCm39) V149A probably benign Het
Syt3 C T 7: 44,041,953 (GRCm39) Q271* probably null Het
Tas2r109 A G 6: 132,957,663 (GRCm39) I89T probably benign Het
Tgif1 A G 17: 71,151,847 (GRCm39) S255P probably damaging Het
Tm9sf1 G A 14: 55,875,432 (GRCm39) probably benign Het
Tnf A G 17: 35,419,347 (GRCm39) F161S possibly damaging Het
Topaz1 T A 9: 122,579,428 (GRCm39) S779R possibly damaging Het
Topors A G 4: 40,260,540 (GRCm39) S915P unknown Het
Tpm4 C T 8: 72,900,321 (GRCm39) L161F probably damaging Het
Trim38 C T 13: 23,975,384 (GRCm39) T441I probably damaging Het
Trpv1 A G 11: 73,141,620 (GRCm39) M548V probably benign Het
Vmn2r68 T A 7: 84,883,042 (GRCm39) T237S probably benign Het
Zc3hav1 A G 6: 38,309,209 (GRCm39) S538P probably benign Het
Zfp541 C T 7: 15,813,294 (GRCm39) T649I probably benign Het
Other mutations in Prex2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00497:Prex2 APN 1 11,256,876 (GRCm39) missense possibly damaging 0.51
IGL00948:Prex2 APN 1 11,240,838 (GRCm39) missense probably damaging 0.98
IGL01087:Prex2 APN 1 11,138,328 (GRCm39) missense probably benign 0.00
IGL01490:Prex2 APN 1 11,254,769 (GRCm39) splice site probably null
IGL01533:Prex2 APN 1 11,256,965 (GRCm39) nonsense probably null
IGL01661:Prex2 APN 1 11,278,838 (GRCm39) missense probably benign 0.01
IGL01668:Prex2 APN 1 11,223,869 (GRCm39) missense probably benign 0.00
IGL01674:Prex2 APN 1 11,240,965 (GRCm39) missense probably damaging 1.00
IGL01716:Prex2 APN 1 11,336,278 (GRCm39) missense probably benign 0.04
IGL01867:Prex2 APN 1 11,168,727 (GRCm39) missense probably benign 0.11
IGL01954:Prex2 APN 1 11,210,235 (GRCm39) missense possibly damaging 0.75
IGL01990:Prex2 APN 1 11,193,457 (GRCm39) splice site probably benign
IGL02022:Prex2 APN 1 11,367,963 (GRCm39) missense probably benign 0.04
IGL02130:Prex2 APN 1 11,230,386 (GRCm39) missense probably damaging 1.00
IGL02130:Prex2 APN 1 11,183,023 (GRCm39) missense probably damaging 1.00
IGL02221:Prex2 APN 1 11,131,569 (GRCm39) missense probably benign 0.00
IGL02369:Prex2 APN 1 11,171,393 (GRCm39) critical splice donor site probably null
IGL02440:Prex2 APN 1 11,223,881 (GRCm39) missense possibly damaging 0.94
IGL02477:Prex2 APN 1 11,274,378 (GRCm39) missense probably benign
IGL02492:Prex2 APN 1 11,194,069 (GRCm39) missense possibly damaging 0.93
IGL03051:Prex2 APN 1 11,212,889 (GRCm39) missense probably damaging 1.00
IGL03154:Prex2 APN 1 11,223,857 (GRCm39) missense possibly damaging 0.63
IGL03158:Prex2 APN 1 11,336,291 (GRCm39) missense possibly damaging 0.89
IGL03308:Prex2 APN 1 11,255,399 (GRCm39) missense possibly damaging 0.89
IGL03338:Prex2 APN 1 11,210,489 (GRCm39) missense probably benign 0.01
R0042:Prex2 UTSW 1 11,150,305 (GRCm39) missense probably damaging 1.00
R0052:Prex2 UTSW 1 11,230,380 (GRCm39) missense probably damaging 1.00
R0052:Prex2 UTSW 1 11,230,380 (GRCm39) missense probably damaging 1.00
R0138:Prex2 UTSW 1 11,355,267 (GRCm39) splice site probably benign
R0206:Prex2 UTSW 1 11,355,368 (GRCm39) missense probably damaging 1.00
R0206:Prex2 UTSW 1 11,355,368 (GRCm39) missense probably damaging 1.00
R0208:Prex2 UTSW 1 11,355,368 (GRCm39) missense probably damaging 1.00
R0325:Prex2 UTSW 1 11,270,281 (GRCm39) splice site probably null
R0326:Prex2 UTSW 1 11,355,289 (GRCm39) missense probably damaging 1.00
R0390:Prex2 UTSW 1 11,159,930 (GRCm39) splice site probably null
R0492:Prex2 UTSW 1 11,256,857 (GRCm39) splice site probably benign
R0512:Prex2 UTSW 1 11,270,157 (GRCm39) missense probably benign
R0515:Prex2 UTSW 1 11,270,098 (GRCm39) missense probably damaging 0.99
R0894:Prex2 UTSW 1 11,252,122 (GRCm39) missense probably benign
R1259:Prex2 UTSW 1 11,359,494 (GRCm39) missense probably damaging 1.00
R1332:Prex2 UTSW 1 11,274,315 (GRCm39) missense probably damaging 1.00
R1356:Prex2 UTSW 1 11,150,316 (GRCm39) nonsense probably null
R1451:Prex2 UTSW 1 11,226,483 (GRCm39) missense probably benign 0.01
R1488:Prex2 UTSW 1 11,263,752 (GRCm39) missense probably benign 0.05
R1512:Prex2 UTSW 1 11,131,554 (GRCm39) missense possibly damaging 0.64
R1641:Prex2 UTSW 1 11,301,996 (GRCm39) missense probably damaging 0.99
R1667:Prex2 UTSW 1 11,256,981 (GRCm39) missense probably benign
R1678:Prex2 UTSW 1 11,355,313 (GRCm39) missense possibly damaging 0.51
R1736:Prex2 UTSW 1 11,160,108 (GRCm39) splice site probably benign
R1781:Prex2 UTSW 1 11,270,179 (GRCm39) missense probably benign 0.17
R1804:Prex2 UTSW 1 11,202,566 (GRCm39) missense probably damaging 1.00
R1836:Prex2 UTSW 1 11,207,004 (GRCm39) missense probably damaging 1.00
R1899:Prex2 UTSW 1 11,232,590 (GRCm39) nonsense probably null
R1900:Prex2 UTSW 1 11,232,590 (GRCm39) nonsense probably null
R2020:Prex2 UTSW 1 11,232,536 (GRCm39) missense probably damaging 0.98
R2114:Prex2 UTSW 1 11,256,937 (GRCm39) missense probably damaging 1.00
R2117:Prex2 UTSW 1 11,256,937 (GRCm39) missense probably damaging 1.00
R2436:Prex2 UTSW 1 11,336,376 (GRCm39) missense possibly damaging 0.90
R2902:Prex2 UTSW 1 11,278,838 (GRCm39) missense possibly damaging 0.77
R2915:Prex2 UTSW 1 11,240,077 (GRCm39) missense probably damaging 1.00
R2924:Prex2 UTSW 1 11,168,711 (GRCm39) missense probably damaging 1.00
R2981:Prex2 UTSW 1 11,252,186 (GRCm39) missense probably damaging 1.00
R3430:Prex2 UTSW 1 11,220,078 (GRCm39) missense possibly damaging 0.88
R3832:Prex2 UTSW 1 11,226,588 (GRCm39) splice site probably benign
R3870:Prex2 UTSW 1 11,230,416 (GRCm39) missense possibly damaging 0.86
R3963:Prex2 UTSW 1 11,180,581 (GRCm39) missense possibly damaging 0.93
R4012:Prex2 UTSW 1 11,254,740 (GRCm39) missense probably benign
R4030:Prex2 UTSW 1 11,278,792 (GRCm39) missense probably benign 0.06
R4214:Prex2 UTSW 1 11,171,383 (GRCm39) missense probably damaging 1.00
R4214:Prex2 UTSW 1 11,355,285 (GRCm39) missense probably damaging 1.00
R4242:Prex2 UTSW 1 11,226,528 (GRCm39) missense probably benign 0.06
R4490:Prex2 UTSW 1 11,232,487 (GRCm39) missense probably benign 0.05
R4491:Prex2 UTSW 1 11,232,487 (GRCm39) missense probably benign 0.05
R4492:Prex2 UTSW 1 11,232,487 (GRCm39) missense probably benign 0.05
R4561:Prex2 UTSW 1 11,254,769 (GRCm39) splice site probably null
R4624:Prex2 UTSW 1 11,359,489 (GRCm39) nonsense probably null
R4647:Prex2 UTSW 1 11,232,509 (GRCm39) missense probably damaging 1.00
R4657:Prex2 UTSW 1 11,136,049 (GRCm39) missense probably benign 0.00
R4706:Prex2 UTSW 1 11,270,212 (GRCm39) missense probably damaging 1.00
R4806:Prex2 UTSW 1 11,138,244 (GRCm39) missense probably damaging 1.00
R4900:Prex2 UTSW 1 11,220,129 (GRCm39) splice site probably benign
R4922:Prex2 UTSW 1 11,240,164 (GRCm39) missense probably damaging 1.00
R4961:Prex2 UTSW 1 11,168,705 (GRCm39) missense possibly damaging 0.75
R5284:Prex2 UTSW 1 11,336,314 (GRCm39) nonsense probably null
R5305:Prex2 UTSW 1 11,177,902 (GRCm39) missense probably damaging 1.00
R5307:Prex2 UTSW 1 11,270,256 (GRCm39) missense probably damaging 0.99
R5331:Prex2 UTSW 1 11,210,235 (GRCm39) missense possibly damaging 0.75
R5385:Prex2 UTSW 1 11,210,204 (GRCm39) missense probably damaging 0.99
R5574:Prex2 UTSW 1 11,210,282 (GRCm39) missense probably damaging 1.00
R5979:Prex2 UTSW 1 11,202,596 (GRCm39) missense probably damaging 1.00
R6076:Prex2 UTSW 1 11,256,174 (GRCm39) missense probably benign 0.09
R6160:Prex2 UTSW 1 11,064,075 (GRCm39) missense probably damaging 1.00
R6177:Prex2 UTSW 1 11,207,001 (GRCm39) missense possibly damaging 0.49
R6221:Prex2 UTSW 1 11,336,236 (GRCm39) missense probably benign 0.01
R6293:Prex2 UTSW 1 11,232,522 (GRCm39) missense probably benign
R6335:Prex2 UTSW 1 11,180,544 (GRCm39) missense probably benign 0.13
R6401:Prex2 UTSW 1 11,256,951 (GRCm39) missense probably benign 0.00
R6427:Prex2 UTSW 1 11,252,255 (GRCm39) missense probably damaging 1.00
R6467:Prex2 UTSW 1 11,336,259 (GRCm39) missense probably damaging 1.00
R6564:Prex2 UTSW 1 11,171,285 (GRCm39) splice site probably null
R6734:Prex2 UTSW 1 11,150,283 (GRCm39) missense probably damaging 1.00
R6753:Prex2 UTSW 1 11,254,680 (GRCm39) missense probably damaging 0.98
R6880:Prex2 UTSW 1 11,202,608 (GRCm39) missense probably damaging 1.00
R6973:Prex2 UTSW 1 11,182,967 (GRCm39) missense probably damaging 1.00
R6980:Prex2 UTSW 1 11,232,487 (GRCm39) missense probably benign 0.05
R6987:Prex2 UTSW 1 11,240,976 (GRCm39) missense probably damaging 0.99
R7085:Prex2 UTSW 1 11,168,812 (GRCm39) missense possibly damaging 0.73
R7101:Prex2 UTSW 1 11,223,833 (GRCm39) missense possibly damaging 0.86
R7106:Prex2 UTSW 1 11,207,017 (GRCm39) missense probably benign 0.33
R7342:Prex2 UTSW 1 11,232,549 (GRCm39) missense probably benign 0.00
R7469:Prex2 UTSW 1 11,355,293 (GRCm39) missense probably damaging 1.00
R7528:Prex2 UTSW 1 11,274,316 (GRCm39) missense probably damaging 1.00
R7592:Prex2 UTSW 1 11,193,437 (GRCm39) missense probably damaging 1.00
R7650:Prex2 UTSW 1 11,220,078 (GRCm39) missense possibly damaging 0.67
R7695:Prex2 UTSW 1 11,232,497 (GRCm39) missense probably benign 0.00
R7720:Prex2 UTSW 1 11,252,161 (GRCm39) missense possibly damaging 0.47
R7733:Prex2 UTSW 1 11,252,183 (GRCm39) missense probably benign 0.31
R7859:Prex2 UTSW 1 11,150,274 (GRCm39) missense probably damaging 1.00
R8247:Prex2 UTSW 1 11,270,194 (GRCm39) missense probably benign
R8300:Prex2 UTSW 1 11,301,942 (GRCm39) missense possibly damaging 0.49
R8345:Prex2 UTSW 1 11,270,118 (GRCm39) missense possibly damaging 0.65
R8352:Prex2 UTSW 1 11,355,364 (GRCm39) missense probably benign
R8352:Prex2 UTSW 1 11,355,363 (GRCm39) missense probably benign
R8410:Prex2 UTSW 1 11,223,881 (GRCm39) missense possibly damaging 0.94
R8452:Prex2 UTSW 1 11,355,364 (GRCm39) missense probably benign
R8452:Prex2 UTSW 1 11,355,363 (GRCm39) missense probably benign
R8885:Prex2 UTSW 1 11,240,799 (GRCm39) splice site probably benign
R8926:Prex2 UTSW 1 11,159,930 (GRCm39) splice site probably null
R8968:Prex2 UTSW 1 11,180,562 (GRCm39) nonsense probably null
R9049:Prex2 UTSW 1 11,256,130 (GRCm39) missense probably damaging 0.98
R9398:Prex2 UTSW 1 11,207,028 (GRCm39) missense probably benign 0.00
R9452:Prex2 UTSW 1 11,256,151 (GRCm39) missense probably benign 0.01
R9549:Prex2 UTSW 1 11,256,915 (GRCm39) missense probably damaging 1.00
RF005:Prex2 UTSW 1 11,255,390 (GRCm39) missense possibly damaging 0.47
Z1177:Prex2 UTSW 1 11,359,476 (GRCm39) critical splice acceptor site probably null
Predicted Primers PCR Primer
(F):5'- CTCATGGAACTAAACCTGGGC -3'
(R):5'- GCCTCAAGGATTTTCTTATAGCAAC -3'

Sequencing Primer
(F):5'- GGCAACTACAGTGCTAGCTTATG -3'
(R):5'- CTTATAGCAACAAACAATTGACCAAG -3'
Posted On 2019-06-26