Incidental Mutation 'R7469:Prex2'
ID 579000
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 045543-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.262) question?
Stock # R7469 (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 11355293 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Arginine at position 1531 (S1531R)
Ref Sequence ENSEMBL: ENSMUSP00000027056 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027056]
AlphaFold Q3LAC4
Predicted Effect probably damaging
Transcript: ENSMUST00000027056
AA Change: S1531R

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000027056
Gene: ENSMUSG00000048960
AA Change: S1531R

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
Predicted Effect probably benign
Transcript: ENSMUST00000187745
Predicted Effect probably benign
Transcript: ENSMUST00000188154
Predicted Effect probably benign
Transcript: ENSMUST00000188189
Predicted Effect probably benign
Transcript: ENSMUST00000189385
Meta Mutation Damage Score 0.6329 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency 97% (77/79)
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: 79 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcc3 A G 11: 94,259,014 (GRCm39) L443P probably damaging Het
Abtb2 T C 2: 103,397,292 (GRCm39) V74A probably benign Het
Adam5 A T 8: 25,305,541 (GRCm39) F66I probably benign Het
Aff1 T A 5: 103,981,413 (GRCm39) D517E probably benign Het
Agbl3 A G 6: 34,791,349 (GRCm39) K559R probably damaging Het
Aldh1l2 A C 10: 83,343,969 (GRCm39) V482G probably damaging Het
Ankra2 C T 13: 98,402,882 (GRCm39) A43V probably benign Het
Ankrd50 C A 3: 38,508,342 (GRCm39) V419F probably damaging Het
Arhgef16 G A 4: 154,375,763 (GRCm39) T77M probably damaging Het
Best3 T C 10: 116,840,290 (GRCm39) V240A probably damaging Het
Btbd7 T C 12: 102,779,027 (GRCm39) Y413C probably damaging Het
Bzw2 A T 12: 36,157,550 (GRCm39) V305E probably damaging Het
Cacng8 G A 7: 3,463,621 (GRCm39) A258T possibly damaging Het
Cfap157 T C 2: 32,670,696 (GRCm39) Y184C probably damaging Het
Chmp3 T A 6: 71,556,652 (GRCm39) V184E possibly damaging Het
Cst5 C T 2: 149,247,496 (GRCm39) L71F probably benign Het
Ctdspl2 A T 2: 121,837,362 (GRCm39) E376D possibly damaging Het
Cyfip1 A G 7: 55,527,468 (GRCm39) D200G possibly damaging Het
Cylc2 T A 4: 51,227,970 (GRCm39) probably null Het
Cyp2c66 T A 19: 39,172,307 (GRCm39) F407L probably damaging Het
Dcp2 T C 18: 44,529,019 (GRCm39) F45L probably damaging Het
Dhx34 C T 7: 15,950,364 (GRCm39) R268H probably benign Het
Dnajc7 A T 11: 100,482,377 (GRCm39) M205K probably benign Het
Dzip3 C T 16: 48,765,242 (GRCm39) V491M probably benign Het
Farp1 T C 14: 121,512,833 (GRCm39) L777P probably damaging Het
Fchsd2 T G 7: 100,927,863 (GRCm39) probably null Het
Fer1l6 A T 15: 58,462,419 (GRCm39) probably null Het
Fhip1a T C 3: 85,580,069 (GRCm39) D712G probably benign Het
Fitm2 A G 2: 163,311,742 (GRCm39) F157S probably damaging Het
Flt1 G T 5: 147,540,379 (GRCm39) A770E probably damaging Het
Flt3 T A 5: 147,268,084 (GRCm39) E967V probably benign Het
Foxc1 G C 13: 31,992,361 (GRCm39) A391P unknown Het
Foxc1 C T 13: 31,992,362 (GRCm39) A391V unknown Het
Gimap6 T A 6: 48,679,392 (GRCm39) T215S probably benign Het
Gm2431 A T 7: 141,811,518 (GRCm39) C129S unknown Het
Itpr3 T C 17: 27,340,028 (GRCm39) S2636P possibly damaging Het
Lsg1 A G 16: 30,380,635 (GRCm39) Y601H probably benign Het
Map4 G T 9: 109,856,865 (GRCm39) probably null Het
Mga T C 2: 119,733,527 (GRCm39) M125T probably damaging Het
Mxi1 A G 19: 53,360,091 (GRCm39) D271G probably damaging Het
Ndst3 T A 3: 123,465,310 (GRCm39) T221S possibly damaging Het
Neto1 T A 18: 86,516,813 (GRCm39) S377T probably benign Het
Nkx6-2 T C 7: 139,161,555 (GRCm39) E210G probably damaging Het
Nos2 G T 11: 78,843,797 (GRCm39) V915F possibly damaging Het
Nrros G A 16: 31,963,030 (GRCm39) A329V probably benign Het
Numb T C 12: 83,850,578 (GRCm39) K211E probably benign Het
Nup210 T A 6: 90,995,874 (GRCm39) I1671F probably benign Het
Or12j3 G A 7: 139,953,050 (GRCm39) L158F possibly damaging Het
Or4c106 T A 2: 88,682,847 (GRCm39) D184E probably benign Het
Or4c31 T A 2: 88,291,691 (GRCm39) H2Q probably benign Het
Pcdh15 A T 10: 74,481,812 (GRCm39) M386L probably benign Het
Pcdhb3 C A 18: 37,434,388 (GRCm39) T118K probably benign Het
Pcdhb8 A T 18: 37,489,011 (GRCm39) I230F probably damaging Het
Peli2 G A 14: 48,488,015 (GRCm39) V120I probably benign Het
Pramel15 T A 4: 144,099,673 (GRCm39) Q364L probably damaging Het
Pramel7 T A 2: 87,321,748 (GRCm39) M96L probably benign Het
Prpf31 A G 7: 3,636,392 (GRCm39) T138A possibly damaging Het
Psme4 C T 11: 30,752,837 (GRCm39) T175I probably benign Het
Rasgrf2 A G 13: 92,165,530 (GRCm39) probably null Het
Rps19 T A 7: 24,589,190 (GRCm39) *146K probably null Het
Rsu1 T C 2: 13,082,371 (GRCm39) N260S probably benign Het
Serpina3k T C 12: 104,311,594 (GRCm39) C391R not run Het
Sipa1l1 T G 12: 82,467,438 (GRCm39) probably null Het
Snd1 T A 6: 28,626,126 (GRCm39) Y394N probably damaging Het
Spaca4 A T 7: 45,374,831 (GRCm39) V57E probably damaging Het
Spata31d1b A G 13: 59,863,278 (GRCm39) Y142C probably benign Het
Sptbn2 A G 19: 4,795,146 (GRCm39) K1535E probably benign Het
Srcin1 A G 11: 97,425,435 (GRCm39) S541P probably damaging Het
Tc2n A T 12: 101,631,934 (GRCm39) F308I probably damaging Het
Tdrd5 T C 1: 156,090,475 (GRCm39) D857G probably benign Het
Timm22 A G 11: 76,298,134 (GRCm39) D35G probably benign Het
Tram1l1 C A 3: 124,114,889 (GRCm39) H16Q probably benign Het
Uggt1 T C 1: 36,190,814 (GRCm39) Y1382C probably damaging Het
Usp32 G T 11: 84,879,379 (GRCm39) D1443E possibly damaging Het
Uty A T Y: 1,131,072 (GRCm39) C1046S possibly damaging Het
Wdr31 T A 4: 62,375,768 (GRCm39) Q230L probably damaging Het
Wnt8b C A 19: 44,500,001 (GRCm39) T196K possibly damaging Het
Xpo4 A T 14: 57,835,436 (GRCm39) H628Q probably benign Het
Zfp780b C T 7: 27,663,382 (GRCm39) S391N 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
R7319:Prex2 UTSW 1 11,232,532 (GRCm39) missense probably benign 0.10
R7342:Prex2 UTSW 1 11,232,549 (GRCm39) missense probably benign 0.00
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'- GCTTCTAGCTATCACAAATAGGCCC -3'
(R):5'- CGAGGGGTCTGTACTATTTTCTCC -3'

Sequencing Primer
(F):5'- TAGCTATCACAAATAGGCCCTGTGG -3'
(R):5'- GGCTTAACTAATGTCATGTGCC -3'
Posted On 2019-10-07