Incidental Mutation 'R4710:Lamb1'
ID 353227
Institutional Source Beutler Lab
Gene Symbol Lamb1
Ensembl Gene ENSMUSG00000002900
Gene Name laminin B1
Synonyms Lamb-1, D130003D08Rik, C80098, C81607, Lamb1-1
MMRRC Submission 042019-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4710 (G1)
Quality Score 225
Status Validated
Chromosome 12
Chromosomal Location 31315233-31379643 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 31332582 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 283 (I283V)
Ref Sequence ENSEMBL: ENSMUSP00000002979 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000002979] [ENSMUST00000169088]
AlphaFold P02469
Predicted Effect probably benign
Transcript: ENSMUST00000002979
AA Change: I283V

PolyPhen 2 Score 0.023 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000002979
Gene: ENSMUSG00000002900
AA Change: I283V

DomainStartEndE-ValueType
low complexity region 32 45 N/A INTRINSIC
LamNT 77 317 3.24e-96 SMART
EGF_Lam 319 380 1.34e-6 SMART
EGF_Lam 383 443 1.33e-10 SMART
EGF_Lam 446 503 2.89e-11 SMART
EGF_Lam 506 555 2.89e-11 SMART
EGF_Lam 558 602 3.4e-8 SMART
EGF_Lam 821 866 4.99e-15 SMART
EGF_Lam 869 912 2.38e-12 SMART
EGF_Lam 915 962 2.4e-8 SMART
EGF_Lam 965 1021 1.41e-5 SMART
EGF_Lam 1024 1073 4.81e-8 SMART
EGF_Lam 1076 1129 3.81e-11 SMART
EGF_Lam 1132 1177 5.61e-9 SMART
EGF_Lam 1180 1224 2.89e-11 SMART
coiled coil region 1329 1360 N/A INTRINSIC
low complexity region 1468 1480 N/A INTRINSIC
coiled coil region 1497 1551 N/A INTRINSIC
coiled coil region 1600 1826 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000164009
Predicted Effect probably benign
Transcript: ENSMUST00000164919
AA Change: I283V

PolyPhen 2 Score 0.011 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000132616
Gene: ENSMUSG00000002900
AA Change: I283V

DomainStartEndE-ValueType
low complexity region 32 45 N/A INTRINSIC
LamNT 77 317 3.24e-96 SMART
EGF_Lam 319 380 1.34e-6 SMART
EGF_Lam 383 443 1.33e-10 SMART
EGF_Lam 446 503 2.89e-11 SMART
EGF_Lam 506 555 2.89e-11 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000169065
Predicted Effect probably benign
Transcript: ENSMUST00000169088
AA Change: I235V

PolyPhen 2 Score 0.012 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000132778
Gene: ENSMUSG00000002900
AA Change: I235V

DomainStartEndE-ValueType
LamNT 29 269 3.24e-96 SMART
EGF_Lam 271 332 1.34e-6 SMART
EGF_Lam 335 395 1.33e-10 SMART
EGF_Lam 398 455 2.89e-11 SMART
EGF_Lam 458 507 2.89e-11 SMART
EGF_Lam 510 554 3.4e-8 SMART
EGF_Lam 773 818 4.99e-15 SMART
EGF_Lam 821 864 2.38e-12 SMART
EGF_Lam 867 914 2.4e-8 SMART
EGF_Lam 917 973 1.41e-5 SMART
EGF_Lam 976 1025 4.81e-8 SMART
EGF_Lam 1028 1081 3.81e-11 SMART
EGF_Lam 1084 1129 5.61e-9 SMART
EGF_Lam 1132 1176 2.89e-11 SMART
coiled coil region 1281 1312 N/A INTRINSIC
low complexity region 1420 1432 N/A INTRINSIC
coiled coil region 1449 1503 N/A INTRINSIC
coiled coil region 1552 1778 N/A INTRINSIC
Meta Mutation Damage Score 0.1606 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.5%
Validation Efficiency 99% (75/76)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins are composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively) and they form a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. Several isoforms of each chain have been described. Different alpha, beta and gamma chain isomers combine to give rise to different heterotrimeric laminin isoforms which are designated by Arabic numerals in the order of their discovery, i.e. alpha1beta1gamma1 heterotrimer is laminin 1. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, presumably reflecting diverse functions in vivo. This gene encodes the beta chain isoform laminin, beta 1. The beta 1 chain has 7 structurally distinct domains which it shares with other beta chain isomers. The C-terminal helical region containing domains I and II are separated by domain alpha, domains III and V contain several EGF-like repeats, and domains IV and VI have a globular conformation. Laminin, beta 1 is expressed in most tissues that produce basement membranes, and is one of the 3 chains constituting laminin 1, the first laminin isolated from Engelbreth-Holm-Swarm (EHS) tumor. A sequence in the beta 1 chain that is involved in cell attachment, chemotaxis, and binding to the laminin receptor was identified and shown to have the capacity to inhibit metastasis. [provided by RefSeq, Aug 2011]
PHENOTYPE: Embryos homozygous for a gene trapped allele lack basement membranes and fail to survive past E5.5. Mice heterozygous for a spontaneous mutation exhibit dystonis with impaired neuron firing. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 72 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A2m A T 6: 121,618,262 (GRCm39) Q185L probably benign Het
Acaca T A 11: 84,283,163 (GRCm39) I2243N possibly damaging Het
Adamts18 A G 8: 114,433,558 (GRCm39) S1059P probably damaging Het
Aox4 A T 1: 58,294,797 (GRCm39) K1002M probably damaging Het
Ap1b1 A G 11: 4,981,664 (GRCm39) Y524C probably damaging Het
Bag4 C T 8: 26,259,516 (GRCm39) A228T probably benign Het
Bpifb6 T A 2: 153,750,436 (GRCm39) I309N possibly damaging Het
Cd209b T C 8: 3,974,215 (GRCm39) E99G probably damaging Het
Cntn2 T A 1: 132,455,963 (GRCm39) H185L possibly damaging Het
Col4a2 C A 8: 11,459,462 (GRCm39) P299Q probably benign Het
Commd3 A G 2: 18,679,093 (GRCm39) N106S probably benign Het
Coro7 T G 16: 4,452,797 (GRCm39) probably benign Het
Ctf1 C A 7: 127,316,252 (GRCm39) P66Q probably damaging Het
Dclre1c T C 2: 3,441,898 (GRCm39) probably null Het
Dnaaf3 A T 7: 4,529,493 (GRCm39) L317Q probably damaging Het
Dnah2 A G 11: 69,368,903 (GRCm39) L1667P probably damaging Het
Dpp4 A G 2: 62,190,659 (GRCm39) I399T probably benign Het
Dysf C A 6: 84,074,697 (GRCm39) D499E probably damaging Het
Erg T C 16: 95,190,893 (GRCm39) D90G possibly damaging Het
F11 T C 8: 45,703,183 (GRCm39) Y169C probably damaging Het
Fabp3 C T 4: 130,206,180 (GRCm39) T57I probably benign Het
Fcgbp A T 7: 27,794,386 (GRCm39) M1197L probably benign Het
Gimd1 T C 3: 132,340,609 (GRCm39) S42P possibly damaging Het
Gm5526 T A 1: 45,896,579 (GRCm39) noncoding transcript Het
Gnl2 T A 4: 124,947,252 (GRCm39) S625T probably benign Het
H2-Q2 A G 17: 35,562,278 (GRCm39) E175G probably damaging Het
Hmgxb3 G A 18: 61,270,547 (GRCm39) P926S probably damaging Het
Ifi213 G A 1: 173,394,738 (GRCm39) probably benign Het
Inhba T C 13: 16,201,068 (GRCm39) V210A probably benign Het
Kansl1l G A 1: 66,840,655 (GRCm39) A215V possibly damaging Het
Kcnk1 T A 8: 126,756,267 (GRCm39) V263D probably damaging Het
Kcnk9 A G 15: 72,384,824 (GRCm39) I118T probably damaging Het
Larp7-ps T C 4: 92,079,212 (GRCm39) E203G possibly damaging Het
Lias A G 5: 65,555,070 (GRCm39) D88G probably benign Het
Lrrk2 G A 15: 91,584,130 (GRCm39) V297M possibly damaging Het
Maea C T 5: 33,526,034 (GRCm39) R237C probably benign Het
Mdfi T A 17: 48,135,511 (GRCm39) N73I probably damaging Het
Mphosph6 T A 8: 118,528,641 (GRCm39) M1L probably damaging Het
Mta2 T A 19: 8,926,517 (GRCm39) I486N probably damaging Het
Nbr1 C T 11: 101,466,101 (GRCm39) P769L probably damaging Het
Ncam2 T A 16: 81,262,594 (GRCm39) probably null Het
Ndel1 A G 11: 68,736,163 (GRCm39) Y26H probably damaging Het
Neb T C 2: 52,150,610 (GRCm39) R2473G probably benign Het
Or10ag53 T A 2: 87,082,384 (GRCm39) D34E possibly damaging Het
Or2t46 A T 11: 58,472,548 (GRCm39) I293F probably damaging Het
Or4c3d T C 2: 89,882,494 (GRCm39) Y58C probably damaging Het
Or5h19 T A 16: 58,856,638 (GRCm39) H154L possibly damaging Het
Or6d13 T C 6: 116,517,611 (GRCm39) Y66H possibly damaging Het
Or9a2 G T 6: 41,748,442 (GRCm39) Q264K probably benign Het
Prkn A C 17: 12,073,720 (GRCm39) Q346P possibly damaging Het
Prrc2b T A 2: 32,083,869 (GRCm39) S236R possibly damaging Het
Rae1 G T 2: 172,857,185 (GRCm39) probably benign Het
Rnf112 T C 11: 61,340,657 (GRCm39) D491G probably damaging Het
Rnf220 C T 4: 117,146,411 (GRCm39) probably benign Het
Ryr3 G A 2: 112,596,646 (GRCm39) L2483F probably damaging Het
Sema6a T C 18: 47,403,750 (GRCm39) N624S probably benign Het
Sgms1 C T 19: 32,137,537 (GRCm39) V10M probably damaging Het
Slc23a2 T C 2: 131,898,629 (GRCm39) N636S probably benign Het
Slc25a48 C T 13: 56,611,379 (GRCm39) T162I probably damaging Het
Smtn G A 11: 3,474,663 (GRCm39) S716F probably damaging Het
Snrnp200 T C 2: 127,068,053 (GRCm39) L850P probably damaging Het
Sost G A 11: 101,857,670 (GRCm39) P44S probably damaging Het
Sox18 A G 2: 181,312,688 (GRCm39) Y148H probably damaging Het
Stk-ps1 A G 17: 36,708,562 (GRCm39) noncoding transcript Het
Tas2r104 T A 6: 131,662,407 (GRCm39) T101S probably damaging Het
Traf3ip2 C T 10: 39,515,256 (GRCm39) P345S possibly damaging Het
Ttn A G 2: 76,582,428 (GRCm39) Y22822H probably damaging Het
Vmn2r4 A G 3: 64,317,201 (GRCm39) probably null Het
Vmn2r53 T A 7: 12,335,129 (GRCm39) H177L probably benign Het
Zbtb20 G T 16: 43,431,039 (GRCm39) A517S probably damaging Het
Zfat A T 15: 68,052,131 (GRCm39) D554E probably benign Het
Zfp719 C T 7: 43,239,656 (GRCm39) H415Y probably damaging Het
Other mutations in Lamb1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00932:Lamb1 APN 12 31,348,825 (GRCm39) missense possibly damaging 0.74
IGL00939:Lamb1 APN 12 31,352,926 (GRCm39) missense probably damaging 1.00
IGL01017:Lamb1 APN 12 31,351,063 (GRCm39) missense possibly damaging 0.89
IGL01384:Lamb1 APN 12 31,370,930 (GRCm39) missense probably benign 0.09
IGL01470:Lamb1 APN 12 31,350,261 (GRCm39) missense possibly damaging 0.55
IGL01554:Lamb1 APN 12 31,356,976 (GRCm39) missense probably damaging 1.00
IGL02207:Lamb1 APN 12 31,379,434 (GRCm39) missense probably damaging 1.00
IGL02271:Lamb1 APN 12 31,350,250 (GRCm39) missense probably damaging 1.00
IGL02272:Lamb1 APN 12 31,355,768 (GRCm39) missense probably benign 0.00
IGL02365:Lamb1 APN 12 31,368,344 (GRCm39) missense probably damaging 1.00
IGL02471:Lamb1 APN 12 31,370,907 (GRCm39) missense probably damaging 1.00
IGL02704:Lamb1 APN 12 31,368,466 (GRCm39) missense probably benign 0.05
IGL03132:Lamb1 APN 12 31,350,333 (GRCm39) splice site probably null
IGL03161:Lamb1 APN 12 31,376,255 (GRCm39) missense probably benign 0.41
IGL03169:Lamb1 APN 12 31,373,645 (GRCm39) missense probably damaging 1.00
Crush UTSW 12 31,337,423 (GRCm39) missense probably damaging 1.00
Deflationary UTSW 12 31,371,074 (GRCm39) missense probably null 0.63
E0374:Lamb1 UTSW 12 31,337,929 (GRCm39) missense probably damaging 1.00
P0043:Lamb1 UTSW 12 31,328,620 (GRCm39) missense probably damaging 1.00
R0031:Lamb1 UTSW 12 31,351,155 (GRCm39) missense probably benign 0.04
R0047:Lamb1 UTSW 12 31,328,600 (GRCm39) missense possibly damaging 0.51
R0047:Lamb1 UTSW 12 31,328,600 (GRCm39) missense possibly damaging 0.51
R0285:Lamb1 UTSW 12 31,376,644 (GRCm39) nonsense probably null
R0456:Lamb1 UTSW 12 31,354,729 (GRCm39) missense probably damaging 1.00
R0477:Lamb1 UTSW 12 31,376,268 (GRCm39) missense possibly damaging 0.47
R0480:Lamb1 UTSW 12 31,332,720 (GRCm39) missense possibly damaging 0.79
R0544:Lamb1 UTSW 12 31,332,694 (GRCm39) missense probably damaging 1.00
R0565:Lamb1 UTSW 12 31,348,914 (GRCm39) missense probably benign 0.02
R1500:Lamb1 UTSW 12 31,348,948 (GRCm39) missense possibly damaging 0.82
R1624:Lamb1 UTSW 12 31,328,651 (GRCm39) critical splice donor site probably null
R1772:Lamb1 UTSW 12 31,328,524 (GRCm39) missense probably damaging 1.00
R1836:Lamb1 UTSW 12 31,351,093 (GRCm39) missense probably benign 0.00
R1853:Lamb1 UTSW 12 31,368,271 (GRCm39) missense probably damaging 1.00
R1854:Lamb1 UTSW 12 31,368,271 (GRCm39) missense probably damaging 1.00
R1903:Lamb1 UTSW 12 31,379,209 (GRCm39) missense probably damaging 1.00
R2091:Lamb1 UTSW 12 31,337,428 (GRCm39) missense probably damaging 0.98
R2186:Lamb1 UTSW 12 31,368,466 (GRCm39) nonsense probably null
R2268:Lamb1 UTSW 12 31,377,644 (GRCm39) missense probably damaging 1.00
R2567:Lamb1 UTSW 12 31,319,054 (GRCm39) critical splice acceptor site probably null
R2698:Lamb1 UTSW 12 31,348,882 (GRCm39) missense probably benign 0.10
R3121:Lamb1 UTSW 12 31,337,528 (GRCm39) missense probably damaging 1.00
R3405:Lamb1 UTSW 12 31,337,528 (GRCm39) missense probably damaging 1.00
R3406:Lamb1 UTSW 12 31,337,528 (GRCm39) missense probably damaging 1.00
R3608:Lamb1 UTSW 12 31,337,909 (GRCm39) missense probably damaging 1.00
R3725:Lamb1 UTSW 12 31,371,074 (GRCm39) missense probably null 0.63
R3726:Lamb1 UTSW 12 31,371,074 (GRCm39) missense probably null 0.63
R3949:Lamb1 UTSW 12 31,332,648 (GRCm39) missense probably damaging 1.00
R4308:Lamb1 UTSW 12 31,379,254 (GRCm39) missense probably damaging 1.00
R4600:Lamb1 UTSW 12 31,373,528 (GRCm39) missense probably benign 0.00
R4604:Lamb1 UTSW 12 31,328,775 (GRCm39) missense probably damaging 1.00
R4701:Lamb1 UTSW 12 31,316,847 (GRCm39) nonsense probably null
R4767:Lamb1 UTSW 12 31,358,010 (GRCm39) missense probably damaging 1.00
R4809:Lamb1 UTSW 12 31,328,525 (GRCm39) missense probably damaging 1.00
R4828:Lamb1 UTSW 12 31,348,929 (GRCm39) missense probably benign
R4842:Lamb1 UTSW 12 31,337,432 (GRCm39) missense probably damaging 1.00
R4864:Lamb1 UTSW 12 31,371,005 (GRCm39) missense probably benign 0.01
R4909:Lamb1 UTSW 12 31,338,280 (GRCm39) missense probably damaging 1.00
R4989:Lamb1 UTSW 12 31,376,677 (GRCm39) missense probably damaging 1.00
R5444:Lamb1 UTSW 12 31,348,908 (GRCm39) missense possibly damaging 0.47
R5736:Lamb1 UTSW 12 31,352,664 (GRCm39) nonsense probably null
R5766:Lamb1 UTSW 12 31,349,930 (GRCm39) missense probably damaging 1.00
R5825:Lamb1 UTSW 12 31,368,613 (GRCm39) missense probably benign
R5840:Lamb1 UTSW 12 31,316,755 (GRCm39) missense probably damaging 1.00
R5867:Lamb1 UTSW 12 31,348,954 (GRCm39) missense possibly damaging 0.82
R5887:Lamb1 UTSW 12 31,316,863 (GRCm39) nonsense probably null
R5984:Lamb1 UTSW 12 31,377,773 (GRCm39) missense possibly damaging 0.76
R6313:Lamb1 UTSW 12 31,319,146 (GRCm39) missense probably damaging 1.00
R6359:Lamb1 UTSW 12 31,332,715 (GRCm39) missense probably damaging 0.97
R6505:Lamb1 UTSW 12 31,373,461 (GRCm39) missense possibly damaging 0.63
R7127:Lamb1 UTSW 12 31,374,314 (GRCm39) missense probably damaging 1.00
R7202:Lamb1 UTSW 12 31,374,314 (GRCm39) missense probably damaging 1.00
R7271:Lamb1 UTSW 12 31,337,423 (GRCm39) missense probably damaging 1.00
R7290:Lamb1 UTSW 12 31,315,595 (GRCm39) missense probably benign 0.04
R7486:Lamb1 UTSW 12 31,337,441 (GRCm39) missense probably benign 0.00
R7496:Lamb1 UTSW 12 31,350,020 (GRCm39) missense probably benign 0.31
R7591:Lamb1 UTSW 12 31,376,647 (GRCm39) missense probably damaging 1.00
R7722:Lamb1 UTSW 12 31,373,570 (GRCm39) missense probably damaging 0.99
R7985:Lamb1 UTSW 12 31,350,214 (GRCm39) missense possibly damaging 0.93
R8058:Lamb1 UTSW 12 31,353,046 (GRCm39) missense probably benign 0.16
R8353:Lamb1 UTSW 12 31,356,998 (GRCm39) missense probably damaging 1.00
R8506:Lamb1 UTSW 12 31,379,360 (GRCm39) missense probably damaging 1.00
R8846:Lamb1 UTSW 12 31,379,388 (GRCm39) missense possibly damaging 0.75
R8888:Lamb1 UTSW 12 31,352,953 (GRCm39) missense possibly damaging 0.95
R8895:Lamb1 UTSW 12 31,352,953 (GRCm39) missense possibly damaging 0.95
R9312:Lamb1 UTSW 12 31,368,352 (GRCm39) missense probably damaging 1.00
R9340:Lamb1 UTSW 12 31,374,224 (GRCm39) missense probably benign
R9340:Lamb1 UTSW 12 31,374,223 (GRCm39) missense probably benign
R9371:Lamb1 UTSW 12 31,348,863 (GRCm39) missense probably damaging 0.98
R9417:Lamb1 UTSW 12 31,337,983 (GRCm39) missense probably damaging 1.00
R9562:Lamb1 UTSW 12 31,322,492 (GRCm39) missense probably damaging 1.00
R9626:Lamb1 UTSW 12 31,354,669 (GRCm39) missense probably benign
R9641:Lamb1 UTSW 12 31,337,457 (GRCm39) missense probably damaging 0.97
X0054:Lamb1 UTSW 12 31,337,433 (GRCm39) missense probably damaging 1.00
X0064:Lamb1 UTSW 12 31,353,041 (GRCm39) missense probably benign 0.35
Z1176:Lamb1 UTSW 12 31,377,701 (GRCm39) missense possibly damaging 0.55
Predicted Primers PCR Primer
(F):5'- AGGAGATAGTGGTGGCCTTC -3'
(R):5'- TCCAGATCTCCAGTACAAGCTC -3'

Sequencing Primer
(F):5'- CCCTGTTTCTGGAGGCTGTC -3'
(R):5'- GATCTCCAGTACAAGCTCTCCCC -3'
Posted On 2015-10-21