Phenotypic Mutation 'wassup' (pdf version)
Allele | wassup |
Mutation Type |
missense
|
Chromosome | 11 |
Coordinate | 34,453,413 bp (GRCm39) |
Base Change | A ⇒ T (forward strand) |
Gene |
Dock2
|
Gene Name | dedicator of cyto-kinesis 2 |
Synonym(s) | CED-5, Hch, MBC |
Chromosomal Location |
34,176,815-34,674,719 bp (-) (GRCm39)
|
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 CDM protein family. It is specifically expressed in hematopoietic cells and is predominantly expressed in peripheral blood leukocytes. The protein is involved in remodeling of the actin cytoskeleton required for lymphocyte migration in response to chemokine signaling. It activates members of the Rho family of GTPases, for example RAC1 and RAC2, by acting as a guanine nucleotide exchange factor (GEF) to exchange bound GDP for free GTP. [provided by RefSeq, Oct 2016] PHENOTYPE: Homozygous mutants are defective in the migration of T and B lympohcytes in response to chemokines, and thus display immune defects such as lymphocytopenia, atrophy of lymphoid follicles and loss of marginal-zone B cells. [provided by MGI curators]
|
Accession Number | NCBI RefSeq: NM_033374; MGI:2149010
|
Mapped | Yes |
Amino Acid Change |
Valine changed to Glutamic Acid
|
Institutional Source | Beutler Lab |
Gene Model |
predicted gene model for protein(s):
[ENSMUSP00000090884]
[ENSMUSP00000098915]
[ENSMUSP00000098916]
[ENSMUSP00000116893 †]
† probably from a misspliced transcript
|
AlphaFold |
Q8C3J5 |
SMART Domains |
Protein: ENSMUSP00000090884 Gene: ENSMUSG00000020143 AA Change: V793E
Domain | Start | End | E-Value | Type |
SH3
|
11 |
68 |
1.22e-11 |
SMART |
Pfam:DOCK_N
|
71 |
414 |
2e-113 |
PFAM |
Pfam:DOCK-C2
|
419 |
616 |
1e-60 |
PFAM |
Pfam:DHR-2
|
1114 |
1614 |
6.3e-96 |
PFAM |
low complexity region
|
1691 |
1706 |
N/A |
INTRINSIC |
low complexity region
|
1793 |
1800 |
N/A |
INTRINSIC |
|
Predicted Effect |
probably benign
PolyPhen 2
Score 0.052 (Sensitivity: 0.94; Specificity: 0.83)
(Using ENSMUST00000093193)
|
Predicted Effect |
probably damaging
PolyPhen 2
Score 0.980 (Sensitivity: 0.75; Specificity: 0.96)
(Using ENSMUST00000101364)
|
SMART Domains |
Protein: ENSMUSP00000098916 Gene: ENSMUSG00000020143 AA Change: V793E
Domain | Start | End | E-Value | Type |
SH3
|
11 |
68 |
1.22e-11 |
SMART |
Pfam:DOCK_N
|
71 |
414 |
1.4e-113 |
PFAM |
Pfam:DOCK-C2
|
419 |
616 |
5.5e-61 |
PFAM |
low complexity region
|
1163 |
1171 |
N/A |
INTRINSIC |
|
Predicted Effect |
probably damaging
PolyPhen 2
Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
(Using ENSMUST00000101365)
|
SMART Domains |
Protein: ENSMUSP00000116893 Gene: ENSMUSG00000020143
Domain | Start | End | E-Value | Type |
SH3
|
11 |
68 |
1.22e-11 |
SMART |
Pfam:DOCK-C2
|
418 |
617 |
1.8e-55 |
PFAM |
|
Predicted Effect |
probably benign
|
Meta Mutation Damage Score |
0.6680 |
Is this an essential gene? |
Non Essential (E-score: 0.000) |
Phenotypic Category |
Unknown |
Candidate Explorer Status |
loading ... |
Single pedigree Linkage Analysis Data
|
|
Penetrance | |
Alleles Listed at MGI | All Mutations and Alleles(28) : Chemically induced (ENU)(10) Chemically induced (other)(1) Gene trapped(11) Spontaneous(1) Targeted(5)
|
Lab Alleles |
Allele | Source | Chr | Coord | Type | Predicted Effect | PPH Score |
IGL00334:Dock2
|
APN |
11 |
34595488 |
missense |
probably damaging |
1.00 |
IGL00469:Dock2
|
APN |
11 |
34179603 |
splice site |
probably benign |
|
IGL01061:Dock2
|
APN |
11 |
34596653 |
missense |
probably damaging |
1.00 |
IGL01319:Dock2
|
APN |
11 |
34589617 |
missense |
possibly damaging |
0.61 |
IGL01451:Dock2
|
APN |
11 |
34260390 |
missense |
probably damaging |
1.00 |
IGL01490:Dock2
|
APN |
11 |
34596608 |
missense |
probably damaging |
0.97 |
IGL01601:Dock2
|
APN |
11 |
34189528 |
critical splice donor site |
probably null |
|
IGL01800:Dock2
|
APN |
11 |
34647100 |
missense |
probably damaging |
1.00 |
IGL01804:Dock2
|
APN |
11 |
34212433 |
missense |
probably benign |
0.01 |
IGL01823:Dock2
|
APN |
11 |
34212391 |
missense |
probably damaging |
1.00 |
IGL01829:Dock2
|
APN |
11 |
34596668 |
missense |
probably damaging |
0.98 |
IGL01830:Dock2
|
APN |
11 |
34582744 |
nonsense |
probably null |
|
IGL01835:Dock2
|
APN |
11 |
34260435 |
missense |
possibly damaging |
0.51 |
IGL01845:Dock2
|
APN |
11 |
34599692 |
missense |
probably benign |
0.02 |
IGL01953:Dock2
|
APN |
11 |
34623183 |
missense |
probably benign |
0.28 |
IGL01989:Dock2
|
APN |
11 |
34218053 |
missense |
probably benign |
|
IGL02081:Dock2
|
APN |
11 |
34204355 |
missense |
probably benign |
|
IGL02105:Dock2
|
APN |
11 |
34605352 |
missense |
probably damaging |
1.00 |
IGL02153:Dock2
|
APN |
11 |
34180670 |
missense |
probably benign |
0.01 |
IGL02170:Dock2
|
APN |
11 |
34217949 |
missense |
probably damaging |
1.00 |
IGL02344:Dock2
|
APN |
11 |
34622337 |
missense |
probably damaging |
0.98 |
IGL02389:Dock2
|
APN |
11 |
34589567 |
splice site |
probably benign |
|
IGL02409:Dock2
|
APN |
11 |
34451204 |
missense |
probably benign |
0.00 |
IGL02472:Dock2
|
APN |
11 |
34199801 |
missense |
probably benign |
0.00 |
IGL02625:Dock2
|
APN |
11 |
34451168 |
critical splice donor site |
probably null |
|
IGL02929:Dock2
|
APN |
11 |
34218048 |
missense |
probably damaging |
1.00 |
IGL02951:Dock2
|
APN |
11 |
34260448 |
unclassified |
probably benign |
|
IGL02999:Dock2
|
APN |
11 |
34583086 |
missense |
probably damaging |
0.99 |
IGL03165:Dock2
|
APN |
11 |
34578360 |
missense |
probably damaging |
0.99 |
Arches
|
UTSW |
11 |
34580587 |
missense |
probably damaging |
1.00 |
capitol_reef
|
UTSW |
11 |
34244170 |
critical splice acceptor site |
probably null |
|
Croesus
|
UTSW |
11 |
34611854 |
missense |
probably damaging |
1.00 |
denali
|
UTSW |
11 |
34179472 |
critical splice donor site |
probably null |
|
dew
|
UTSW |
11 |
34198636 |
nonsense |
probably null |
|
Dinghy
|
UTSW |
11 |
34212460 |
missense |
possibly damaging |
0.70 |
Dry
|
UTSW |
11 |
34181652 |
missense |
possibly damaging |
0.79 |
frazz
|
UTSW |
11 |
34198572 |
critical splice donor site |
probably benign |
|
frizz
|
UTSW |
11 |
34208184 |
splice site |
probably benign |
|
gildenstern
|
UTSW |
11 |
34623166 |
critical splice donor site |
probably null |
|
godsgrace
|
UTSW |
11 |
34586280 |
missense |
probably damaging |
1.00 |
Harborside
|
UTSW |
11 |
34212445 |
missense |
probably benign |
|
Landing
|
UTSW |
11 |
34605328 |
missense |
possibly damaging |
0.83 |
latest
|
UTSW |
11 |
34647049 |
missense |
probably damaging |
1.00 |
Launch
|
UTSW |
11 |
34206562 |
missense |
probably damaging |
1.00 |
liaoning
|
UTSW |
11 |
34599620 |
missense |
probably damaging |
1.00 |
lucre
|
UTSW |
11 |
34595436 |
frame shift |
probably null |
|
midas
|
UTSW |
11 |
34244323 |
missense |
probably damaging |
0.99 |
muelle
|
UTSW |
11 |
34578365 |
missense |
probably damaging |
1.00 |
narrowest
|
UTSW |
11 |
34232652 |
missense |
probably damaging |
0.98 |
pier
|
UTSW |
11 |
34580593 |
missense |
probably damaging |
1.00 |
Plank
|
UTSW |
11 |
34674622 |
missense |
possibly damaging |
0.51 |
resplendent
|
UTSW |
11 |
34618287 |
nonsense |
probably null |
|
riches
|
UTSW |
11 |
34579279 |
critical splice donor site |
probably null |
|
skiff
|
UTSW |
11 |
34212388 |
missense |
probably null |
0.80 |
Slip
|
UTSW |
11 |
34244286 |
missense |
probably benign |
0.25 |
toothskin
|
UTSW |
11 |
34414922 |
missense |
probably damaging |
1.00 |
Touch
|
UTSW |
11 |
34223750 |
missense |
possibly damaging |
0.95 |
Wharf
|
UTSW |
11 |
34623198 |
missense |
possibly damaging |
0.81 |
BB009:Dock2
|
UTSW |
11 |
34217998 |
missense |
probably benign |
0.00 |
BB019:Dock2
|
UTSW |
11 |
34217998 |
missense |
probably benign |
0.00 |
IGL03052:Dock2
|
UTSW |
11 |
34182853 |
missense |
probably benign |
0.01 |
PIT4377001:Dock2
|
UTSW |
11 |
34611835 |
missense |
probably benign |
0.02 |
R0006:Dock2
|
UTSW |
11 |
34262453 |
unclassified |
probably benign |
|
R0012:Dock2
|
UTSW |
11 |
34674622 |
missense |
possibly damaging |
0.51 |
R0063:Dock2
|
UTSW |
11 |
34647111 |
critical splice acceptor site |
probably null |
|
R0063:Dock2
|
UTSW |
11 |
34647111 |
critical splice acceptor site |
probably null |
|
R0116:Dock2
|
UTSW |
11 |
34579392 |
intron |
probably benign |
|
R0149:Dock2
|
UTSW |
11 |
34388327 |
missense |
probably damaging |
1.00 |
R0361:Dock2
|
UTSW |
11 |
34388327 |
missense |
probably damaging |
1.00 |
R0462:Dock2
|
UTSW |
11 |
34218052 |
missense |
possibly damaging |
0.74 |
R0471:Dock2
|
UTSW |
11 |
34579380 |
missense |
probably benign |
0.30 |
R0538:Dock2
|
UTSW |
11 |
34595545 |
splice site |
probably benign |
|
R0543:Dock2
|
UTSW |
11 |
34244325 |
missense |
probably damaging |
1.00 |
R0660:Dock2
|
UTSW |
11 |
34198621 |
missense |
probably damaging |
1.00 |
R0676:Dock2
|
UTSW |
11 |
34586063 |
missense |
probably damaging |
0.99 |
R0722:Dock2
|
UTSW |
11 |
34414970 |
splice site |
probably benign |
|
R0801:Dock2
|
UTSW |
11 |
34599620 |
missense |
probably damaging |
1.00 |
R1110:Dock2
|
UTSW |
11 |
34206535 |
missense |
possibly damaging |
0.78 |
R1171:Dock2
|
UTSW |
11 |
34586068 |
missense |
probably damaging |
1.00 |
R1387:Dock2
|
UTSW |
11 |
34223309 |
splice site |
probably benign |
|
R1445:Dock2
|
UTSW |
11 |
34189705 |
missense |
probably benign |
|
R1494:Dock2
|
UTSW |
11 |
34232761 |
nonsense |
probably null |
|
R1589:Dock2
|
UTSW |
11 |
34597288 |
missense |
probably damaging |
0.99 |
R1597:Dock2
|
UTSW |
11 |
34595474 |
missense |
probably benign |
0.00 |
R1629:Dock2
|
UTSW |
11 |
34212480 |
splice site |
probably null |
|
R1749:Dock2
|
UTSW |
11 |
34182767 |
critical splice donor site |
probably null |
|
R1888:Dock2
|
UTSW |
11 |
34598169 |
missense |
probably damaging |
1.00 |
R1888:Dock2
|
UTSW |
11 |
34598169 |
missense |
probably damaging |
1.00 |
R1899:Dock2
|
UTSW |
11 |
34244286 |
missense |
probably benign |
0.25 |
R1924:Dock2
|
UTSW |
11 |
34414934 |
missense |
possibly damaging |
0.69 |
R2031:Dock2
|
UTSW |
11 |
34618297 |
splice site |
probably benign |
|
R2045:Dock2
|
UTSW |
11 |
34244106 |
splice site |
probably null |
|
R2098:Dock2
|
UTSW |
11 |
34609832 |
missense |
probably damaging |
0.99 |
R2098:Dock2
|
UTSW |
11 |
34216279 |
missense |
probably benign |
0.16 |
R2129:Dock2
|
UTSW |
11 |
34618242 |
missense |
probably damaging |
1.00 |
R2147:Dock2
|
UTSW |
11 |
34179472 |
critical splice donor site |
probably null |
|
R2149:Dock2
|
UTSW |
11 |
34179472 |
critical splice donor site |
probably null |
|
R2150:Dock2
|
UTSW |
11 |
34179472 |
critical splice donor site |
probably null |
|
R2176:Dock2
|
UTSW |
11 |
34586044 |
missense |
probably benign |
0.00 |
R2230:Dock2
|
UTSW |
11 |
34244323 |
missense |
probably damaging |
0.99 |
R2508:Dock2
|
UTSW |
11 |
34262485 |
missense |
probably benign |
0.04 |
R2875:Dock2
|
UTSW |
11 |
34609712 |
missense |
probably damaging |
1.00 |
R2885:Dock2
|
UTSW |
11 |
34580593 |
missense |
probably damaging |
1.00 |
R2910:Dock2
|
UTSW |
11 |
34182910 |
splice site |
probably benign |
|
R3081:Dock2
|
UTSW |
11 |
34181610 |
missense |
probably benign |
|
R3418:Dock2
|
UTSW |
11 |
34580587 |
missense |
probably damaging |
1.00 |
R3552:Dock2
|
UTSW |
11 |
34611787 |
missense |
probably benign |
0.22 |
R3731:Dock2
|
UTSW |
11 |
34599722 |
missense |
probably damaging |
1.00 |
R3846:Dock2
|
UTSW |
11 |
34623198 |
missense |
possibly damaging |
0.81 |
R4135:Dock2
|
UTSW |
11 |
34605328 |
missense |
possibly damaging |
0.83 |
R4598:Dock2
|
UTSW |
11 |
34189536 |
missense |
probably damaging |
1.00 |
R4599:Dock2
|
UTSW |
11 |
34189536 |
missense |
probably damaging |
1.00 |
R4715:Dock2
|
UTSW |
11 |
34244118 |
missense |
probably damaging |
1.00 |
R4722:Dock2
|
UTSW |
11 |
34586298 |
missense |
probably damaging |
1.00 |
R4742:Dock2
|
UTSW |
11 |
34244170 |
critical splice acceptor site |
probably null |
|
R4830:Dock2
|
UTSW |
11 |
34223767 |
splice site |
probably null |
|
R4884:Dock2
|
UTSW |
11 |
34216248 |
missense |
probably damaging |
1.00 |
R4990:Dock2
|
UTSW |
11 |
34586078 |
missense |
probably damaging |
1.00 |
R5334:Dock2
|
UTSW |
11 |
34178643 |
missense |
probably benign |
0.00 |
R5570:Dock2
|
UTSW |
11 |
34618233 |
missense |
probably damaging |
1.00 |
R5602:Dock2
|
UTSW |
11 |
34204391 |
missense |
probably benign |
0.16 |
R5681:Dock2
|
UTSW |
11 |
34199836 |
missense |
probably benign |
0.06 |
R5809:Dock2
|
UTSW |
11 |
34212445 |
missense |
probably benign |
|
R5860:Dock2
|
UTSW |
11 |
34206562 |
missense |
probably damaging |
1.00 |
R6111:Dock2
|
UTSW |
11 |
34599614 |
missense |
probably damaging |
0.99 |
R6155:Dock2
|
UTSW |
11 |
34244123 |
missense |
probably benign |
0.06 |
R6156:Dock2
|
UTSW |
11 |
34197789 |
missense |
possibly damaging |
0.51 |
R6173:Dock2
|
UTSW |
11 |
34212388 |
missense |
probably null |
0.80 |
R6182:Dock2
|
UTSW |
11 |
34179476 |
missense |
probably damaging |
0.97 |
R6188:Dock2
|
UTSW |
11 |
34453396 |
missense |
probably damaging |
0.98 |
R6191:Dock2
|
UTSW |
11 |
34181652 |
missense |
possibly damaging |
0.79 |
R6283:Dock2
|
UTSW |
11 |
34598152 |
missense |
probably damaging |
0.99 |
R6395:Dock2
|
UTSW |
11 |
34182874 |
missense |
probably damaging |
1.00 |
R6465:Dock2
|
UTSW |
11 |
34453413 |
missense |
probably damaging |
1.00 |
R6500:Dock2
|
UTSW |
11 |
34312822 |
missense |
possibly damaging |
0.76 |
R6561:Dock2
|
UTSW |
11 |
34578365 |
missense |
probably damaging |
1.00 |
R6745:Dock2
|
UTSW |
11 |
34596670 |
missense |
probably damaging |
1.00 |
R6745:Dock2
|
UTSW |
11 |
34596669 |
missense |
probably damaging |
1.00 |
R6880:Dock2
|
UTSW |
11 |
34579279 |
critical splice donor site |
probably null |
|
R6913:Dock2
|
UTSW |
11 |
34647049 |
missense |
probably damaging |
1.00 |
R6997:Dock2
|
UTSW |
11 |
34414922 |
missense |
probably damaging |
1.00 |
R7057:Dock2
|
UTSW |
11 |
34586044 |
missense |
probably benign |
0.00 |
R7057:Dock2
|
UTSW |
11 |
34177684 |
missense |
probably benign |
0.10 |
R7134:Dock2
|
UTSW |
11 |
34260363 |
missense |
probably benign |
0.03 |
R7188:Dock2
|
UTSW |
11 |
34189675 |
missense |
possibly damaging |
0.87 |
R7239:Dock2
|
UTSW |
11 |
34181677 |
missense |
probably benign |
0.00 |
R7247:Dock2
|
UTSW |
11 |
34605340 |
nonsense |
probably null |
|
R7250:Dock2
|
UTSW |
11 |
34586120 |
missense |
probably damaging |
1.00 |
R7250:Dock2
|
UTSW |
11 |
34586032 |
missense |
probably benign |
0.01 |
R7271:Dock2
|
UTSW |
11 |
34223750 |
missense |
possibly damaging |
0.95 |
R7284:Dock2
|
UTSW |
11 |
34180672 |
missense |
probably benign |
0.01 |
R7397:Dock2
|
UTSW |
11 |
34609816 |
missense |
probably benign |
0.00 |
R7464:Dock2
|
UTSW |
11 |
34586105 |
missense |
probably damaging |
0.99 |
R7512:Dock2
|
UTSW |
11 |
34262542 |
missense |
possibly damaging |
0.95 |
R7556:Dock2
|
UTSW |
11 |
34611778 |
missense |
probably benign |
0.43 |
R7663:Dock2
|
UTSW |
11 |
34611854 |
missense |
probably damaging |
1.00 |
R7779:Dock2
|
UTSW |
11 |
34605282 |
missense |
probably benign |
0.38 |
R7797:Dock2
|
UTSW |
11 |
34232652 |
missense |
probably damaging |
0.98 |
R7855:Dock2
|
UTSW |
11 |
34223698 |
missense |
probably damaging |
1.00 |
R7922:Dock2
|
UTSW |
11 |
34598154 |
missense |
probably benign |
0.29 |
R7932:Dock2
|
UTSW |
11 |
34217998 |
missense |
probably benign |
0.00 |
R8013:Dock2
|
UTSW |
11 |
34596677 |
missense |
probably damaging |
0.96 |
R8192:Dock2
|
UTSW |
11 |
34623166 |
critical splice donor site |
probably null |
|
R8244:Dock2
|
UTSW |
11 |
34586280 |
missense |
probably damaging |
1.00 |
R8307:Dock2
|
UTSW |
11 |
34260362 |
missense |
possibly damaging |
0.95 |
R8418:Dock2
|
UTSW |
11 |
34609795 |
missense |
probably benign |
0.01 |
R8460:Dock2
|
UTSW |
11 |
34180825 |
critical splice acceptor site |
probably null |
|
R8495:Dock2
|
UTSW |
11 |
34181622 |
missense |
probably benign |
0.14 |
R8556:Dock2
|
UTSW |
11 |
34212457 |
missense |
possibly damaging |
0.84 |
R8690:Dock2
|
UTSW |
11 |
34618287 |
nonsense |
probably null |
|
R8743:Dock2
|
UTSW |
11 |
34223252 |
nonsense |
probably null |
|
R8757:Dock2
|
UTSW |
11 |
34586067 |
missense |
probably benign |
0.13 |
R8759:Dock2
|
UTSW |
11 |
34586067 |
missense |
probably benign |
0.13 |
R8793:Dock2
|
UTSW |
11 |
34451215 |
missense |
probably benign |
0.00 |
R8882:Dock2
|
UTSW |
11 |
34595436 |
frame shift |
probably null |
|
R8885:Dock2
|
UTSW |
11 |
34260396 |
missense |
probably benign |
0.01 |
R8943:Dock2
|
UTSW |
11 |
34599646 |
missense |
possibly damaging |
0.63 |
R9171:Dock2
|
UTSW |
11 |
34589670 |
missense |
probably benign |
0.12 |
R9182:Dock2
|
UTSW |
11 |
34260398 |
missense |
possibly damaging |
0.51 |
R9203:Dock2
|
UTSW |
11 |
34622366 |
missense |
possibly damaging |
0.92 |
R9310:Dock2
|
UTSW |
11 |
34244139 |
missense |
possibly damaging |
0.71 |
R9388:Dock2
|
UTSW |
11 |
34212460 |
missense |
possibly damaging |
0.70 |
R9490:Dock2
|
UTSW |
11 |
34589582 |
missense |
possibly damaging |
0.90 |
R9568:Dock2
|
UTSW |
11 |
34599638 |
missense |
possibly damaging |
0.83 |
R9593:Dock2
|
UTSW |
11 |
34178607 |
missense |
probably benign |
0.34 |
R9694:Dock2
|
UTSW |
11 |
34218054 |
missense |
probably benign |
|
R9697:Dock2
|
UTSW |
11 |
34204417 |
missense |
probably benign |
|
R9753:Dock2
|
UTSW |
11 |
34223673 |
missense |
possibly damaging |
0.68 |
R9783:Dock2
|
UTSW |
11 |
34208128 |
missense |
possibly damaging |
0.83 |
X0017:Dock2
|
UTSW |
11 |
34216271 |
missense |
probably benign |
0.08 |
X0018:Dock2
|
UTSW |
11 |
34182833 |
missense |
possibly damaging |
0.65 |
X0058:Dock2
|
UTSW |
11 |
34206564 |
missense |
probably damaging |
1.00 |
X0066:Dock2
|
UTSW |
11 |
34260357 |
missense |
possibly damaging |
0.95 |
Z1088:Dock2
|
UTSW |
11 |
34583209 |
missense |
probably damaging |
1.00 |
Z1088:Dock2
|
UTSW |
11 |
34388300 |
missense |
probably benign |
0.14 |
Z1088:Dock2
|
UTSW |
11 |
34586039 |
nonsense |
probably null |
|
Z1176:Dock2
|
UTSW |
11 |
34609751 |
missense |
probably benign |
0.04 |
Z1177:Dock2
|
UTSW |
11 |
34262553 |
missense |
possibly damaging |
0.68 |
|
Mode of Inheritance |
Unknown |
Local Stock | |
Repository | |
Last Updated |
2019-09-04 9:33 PM
by Diantha La Vine
|
Record Created |
2018-11-16 6:17 AM
by Bruce Beutler
|
Record Posted |
2018-11-30 |
Phenotypic Description |
The Wassup phenotype was identified among G3 mice of the pedigree R6465, some of which showed reduced frequencies of B cells (Figure 1), T cells (Figure 2), and naïve CD8 T cells in CD8 T cells (Figure 3) with concomitant increased frequencies of B1 cells (Figure 4), central memory CD8 T cells in CD8 T cells (Figure 5), and NK cells (Figure 6), all in the peripheral blood. The mice showed reduced CD4 to CD8 T cell ratios (Figure 7) due to reduced frequencies of CD4+ T cells (Figure 8), CD4+ T cells in CD3+ T cells (Figure 9) along with increased frequencies of CD8+ T cells (Figure 10) and CD8+ T cells in CD3+ T cells (Figure 11) in the peripheral blood.
|
Nature of Mutation |
Whole exome HiSeq sequencing of the G1 grandsire identified 42 mutations. All of the above anomalies were linked by continuous variable mapping to a mutation in Dock2: a T to A transversion at base pair 34,503,413 (v38) on chromosome 11, or base pair 269,484 in the GenBank genomic region NC_000077 for the Dock2 gene. The strongest association was found with an additive model of inheritance to the normalized CD4 to CD8 T cell ratio, wherein 13 variant homozygotes and 32 heterozygous mice departed phenotypically from 17 homozygous reference mice with a P value of 3.178 x 10-19 (Figure 12). The mutation corresponds to residue 2,460 in the mRNA sequence NM_178666 within exon 24 of 52 total exons.
2444 ACCATCCTATTGCAGGTGGCGGCTTTGAAATAC
788 -T--I--L--L--Q--V--A--A--L--K--Y-
|
The mutated nucleotide is indicated in red. The mutation results in a valine to glutamic acid substitution at position 793 (V793E) in the DOCK2 protein, and is strongly predicted by Polyphen-2 to be damaging (score = 0.999).
|
Illustration of Mutations in
Gene & Protein |
|
---|
Protein Prediction |
DOCK2 belongs to the DOCK180 superfamily of guanine nucleotide exchange factors (GEFs) that have been shown to activate members of the Rho family of small GTPases [Figure 13; (1-4)]. Members of the DOCK A and B groups contain an N-terminal SH3 domain. Two domains are shared amongst all DOCK proteins, the catalytic DHR-2 (DOCK homology region 2) or CZH-2 (CDM-zizimin homology 2) domain (amino acids 1114-1620 in DOCK2) and the DHR-1 or CZH-1 domain (amino acids 420-662 in DOCK2) (2;4). Several DOCK proteins, including DOCK2, appear to be localized to the plasma membrane via interaction of the DHR-1 domain with phosphatidylinositol (3,5)-biphosphate [PtdIns(3,5)P2] and phosphatidylinositol (3,4,5) P3 (PIP3) signaling lipids (5;6). The DHR-2 domains of several DOCK family members interact with the nucleotide-free form of Rac and/or Cdc42 (2;4). DOCK2 has an N-terminal SH3 domain (amino acids 8-69). The Wassup mutation results in a valine to glutamic acid substitution at position 793 (V793E); Val793 is within an undefined region between the DHR-1 and DHR-2 domains. For more information on Dock2, see the record for frazz.
|
Putative Mechanism | Rho GTPases are known regulators of the actin cytoskeleton and affect multiple cellular activities including cell morphology, polarity, migration, proliferation and apoptosis, phagocytosis, cytokinesis, adhesion, vesicular transport, transcription and neurite extension and retraction. Regulation of Rho GTPase activity involves the GEFs that promote the exchange of GDP for GTP, the GTPase-activating proteins (GAPs) that enhance the GTPase activity of Rho proteins, and the Rho guanine nucleotide-dissociation inhibitors (RhoGDIs) that sequester Rho GTPases in a GDP-bound state. DOCK2 functions in the polarization and migration of immune cell subsets. DOCK2 functions downstream of chemokine receptors to regulate Rac activation and migration of B and T lymphocytes, neutrophils, plasmacytoid dendritic cells (pDCs), and hematopoietic stem cells, but not monocytes or other myeloid cell types (8-10). The immune cells affected by DOCK2 deficiency display aberrant homing, activation, adhesion, polarization and migration. DOCK2-deficient lymphocytes fail to respond normally to the chemokines CCL21, CCL19, CXCL13, and CXCL12, resulting in impaired homing to secondary lymphoid organs and aberrant morphology of these tissues (8). Dock2 -/ -mice display a number of immunological phenotypes including lack of marginal zone B cells, reduced numbers of mature CD4+ T cells and the major subset of natural killer T (NKT) cells expressing the semi-invariant Vα14 T cell receptor (TCR), and aberrant TCR signaling (8;11;12). Similar to Dock2-/ - mice, the Wassup mice exhibit reduced frequencies of peripheral CD4+ T cells, indicating loss of DOCK2-assocated function.
|
Primers |
PCR Primer
wassup_pcr_F: AGCTGAGAGTTTGTATGGAACC
wassup_pcr_R: GGTTAGATGGTGAGAATCTGAAATCTC
Sequencing Primer
wassup_seq_F: ACCTGAGCAACTTGGCA
wassup_seq_R: CTCACCTGACTTTCATAGGGGTG
|
Genotyping | PCR program 1) 94°C 2:00 2) 94°C 0:30 3) 55°C 0:30 4) 72°C 1:00 5) repeat steps (2-4) 40x 6) 72°C 10:00 7) 4°C hold
The following sequence of 458 nucleotides is amplified (chromosome 11, - strand):
1 ggttagatgg tgagaatctg aaatctcttt gtttccggtt tgtgctgcct cacctgactt 61 tcataggggt gttggggacc tgaattcagg tccttagatt tgtgtagcag gttgtttact 121 ggctgagcca gctgtttttc agtcccccgg gagccttgag tggccacagc agtgtctaag 181 atgcagtgcc attctctgat cggcatcatc atgtcacaga gtgtctgtct caccaccagc 241 acagaggatt cgagcaccac acatgtttat ttcatgttcc ctgcaggtgg cggctttgaa 301 atacatccct tcagtccttc acgatgtgga aacagtcttt gatgccaagt tgctcaggtg 361 agagcttgtg atgttctctc tccccagctc cccggtcaca ccaggggttg gaaggaaaag 421 cagggtcctc ctggggggtt ccatacaaac tctcagct
Primer binding sites are underlined and the sequencing primers are highlighted; the mutated nucleotide is shown in red. |
References |
3. Meller, N., Irani-Tehrani, M., Kiosses, W. B., Del Pozo, M. A., and Schwartz, M. A. (2002) Zizimin1, a Novel Cdc42 Activator, Reveals a New GEF Domain for Rho Proteins. Nat Cell Biol. 4, 639-647.
5. Cote, J. F., Motoyama, A. B., Bush, J. A., and Vuori, K. (2005) A Novel and Evolutionarily Conserved PtdIns(3,4,5)P3-Binding Domain is Necessary for DOCK180 Signalling. Nat Cell Biol. 7, 797-807.
6. Kunisaki, Y., Nishikimi, A., Tanaka, Y., Takii, R., Noda, M., Inayoshi, A., Watanabe, K., Sanematsu, F., Sasazuki, T., Sasaki, T., and Fukui, Y. (2006) DOCK2 is a Rac Activator that Regulates Motility and Polarity during Neutrophil Chemotaxis. J Cell Biol. 174, 647-652.
7. Nishikimi, A., Fukuhara, H., Su, W., Hongu, T., Takasuga, S., Mihara, H., Cao, Q., Sanematsu, F., Kanai, M., Hasegawa, H., Tanaka, Y., Shibasaki, M., Kanaho, Y., Sasaki, T., Frohman, M. A., and Fukui, Y. (2009) Sequential Regulation of DOCK2 Dynamics by Two Phospholipids during Neutrophil Chemotaxis. Science. 324, 384-387.
8. Fukui, Y., Hashimoto, O., Sanui, T., Oono, T., Koga, H., Abe, M., Inayoshi, A., Noda, M., Oike, M., Shirai, T., and Sasazuki, T. (2001) Haematopoietic Cell-Specific CDM Family Protein DOCK2 is Essential for Lymphocyte Migration. Nature. 412, 826-831.
9. Kikuchi, T., Kubonishi, S., Shibakura, M., Namba, N., Matsui, T., Fukui, Y., Tanimoto, M., and Katayama, Y. (2008) Dock2 Participates in Bone Marrow Lympho-Hematopoiesis. Biochem Biophys Res Commun. 367, 90-96.
10. Gotoh, K., Tanaka, Y., Nishikimi, A., Inayoshi, A., Enjoji, M., Takayanagi, R., Sasazuki, T., and Fukui, Y. (2008) Differential Requirement for DOCK2 in Migration of Plasmacytoid Dendritic Cells Versus Myeloid Dendritic Cells. Blood. 111, 2973-2976.
11. Kunisaki, Y., Tanaka, Y., Sanui, T., Inayoshi, A., Noda, M., Nakayama, T., Harada, M., Taniguchi, M., Sasazuki, T., and Fukui, Y. (2006) DOCK2 is Required in T Cell Precursors for Development of Valpha14 NK T Cells. J Immunol. 176, 4640-4645.
12. Sanui, T., Inayoshi, A., Noda, M., Iwata, E., Oike, M., Sasazuki, T., and Fukui, Y. (2003) DOCK2 is Essential for Antigen-Induced Translocation of TCR and Lipid Rafts, but Not PKC-Theta and LFA-1, in T Cells. Immunity. 19, 119-129.
|
Science Writers | Anne Murray |
Illustrators | Diantha La Vine |
Authors | Xue Zhong, Jin Huk Choi, and Bruce Beutler |