Incidental Mutation 'R2483:Lamb2'
ID 250677
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission 040407-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R2483 (G1)
Quality Score 225
Status Not validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to G at 108357758 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Cysteine to Glycine at position 94 (C94G)
Ref Sequence ENSEMBL: ENSMUSP00000142304 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065014] [ENSMUST00000194147] [ENSMUST00000195058] [ENSMUST00000195483]
AlphaFold Q61292
Predicted Effect probably damaging
Transcript: ENSMUST00000065014
AA Change: C94G

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911
AA Change: C94G

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
LamNT 44 284 1.9e-102 SMART
EGF_Lam 286 347 1.34e-6 SMART
EGF_Lam 350 410 6.1e-10 SMART
EGF_Lam 413 470 2.98e-13 SMART
EGF_Lam 473 522 7.93e-9 SMART
EGF_Lam 525 569 1.01e-10 SMART
EGF_Lam 784 829 3.42e-13 SMART
EGF_Lam 832 875 6.54e-10 SMART
EGF_Lam 878 925 1.34e-6 SMART
EGF_Lam 928 984 4.74e-7 SMART
EGF_Lam 987 1036 1.53e-10 SMART
EGF_Lam 1039 1093 6.29e-12 SMART
EGF_Lam 1096 1141 1.79e-7 SMART
EGF_Lam 1144 1188 6.64e-11 SMART
coiled coil region 1261 1299 N/A INTRINSIC
low complexity region 1445 1458 N/A INTRINSIC
coiled coil region 1473 1527 N/A INTRINSIC
low complexity region 1609 1625 N/A INTRINSIC
SCOP:d1eq1a_ 1632 1786 5e-17 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000191864
Predicted Effect probably benign
Transcript: ENSMUST00000194147
SMART Domains Protein: ENSMUSP00000141562
Gene: ENSMUSG00000052911

DomainStartEndE-ValueType
low complexity region 59 79 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000195058
AA Change: C94G

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000141757
Gene: ENSMUSG00000052911
AA Change: C94G

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
Pfam:Laminin_N 50 102 6.2e-16 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000195483
AA Change: C94G

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000142304
Gene: ENSMUSG00000052911
AA Change: C94G

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
LamNT 44 125 3e-3 SMART
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.5%
  • 20x: 95.6%
Validation Efficiency
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, composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively), 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 2. The beta 2 chain contains the 7 structural domains typical of beta chains of laminin, including the short alpha region. However, unlike beta 1 chain, beta 2 has a more restricted tissue distribution. It is enriched in the basement membrane of muscles at the neuromuscular junctions, kidney glomerulus and vascular smooth muscle. Transgenic mice in which the beta 2 chain gene was inactivated by homologous recombination, showed defects in the maturation of neuromuscular junctions and impairment of glomerular filtration. Alternative splicing involving a non consensus 5' splice site (gc) in the 5' UTR of this gene has been reported. It was suggested that inefficient splicing of this first intron, which does not change the protein sequence, results in a greater abundance of the unspliced form of the transcript than the spliced form. The full-length nature of the spliced transcript is not known. [provided by RefSeq, Aug 2011]
PHENOTYPE: Homozygotes for a targeted null mutation exhibit small size, severe proteinuria due to a defect in glomerular filtration, abnormalities of the retina and skeletal neuromuscular synapses, and lethality by 30 days of age. [provided by MGI curators]
Allele List at MGI

All alleles(5) : Targeted, knock-out(2) Gene trapped(3)

Other mutations in this stock
Total: 81 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adcy1 A G 11: 7,080,348 (GRCm39) T364A probably benign Het
Adpgk G A 9: 59,221,036 (GRCm39) V281I probably benign Het
Akap9 C A 5: 4,026,235 (GRCm39) Q1297K possibly damaging Het
Ankrd13d T C 19: 4,331,968 (GRCm39) E110G probably damaging Het
Ankrd53 A G 6: 83,740,244 (GRCm39) E104G possibly damaging Het
Ano6 A T 15: 95,863,855 (GRCm39) T792S probably benign Het
Atm A T 9: 53,421,566 (GRCm39) V715D probably damaging Het
Avl9 A G 6: 56,713,828 (GRCm39) D362G probably benign Het
Bin1 T A 18: 32,547,280 (GRCm39) S152R probably damaging Het
Bscl2 T A 19: 8,818,514 (GRCm39) C40S probably benign Het
Btaf1 A G 19: 36,958,486 (GRCm39) T668A probably benign Het
Btrc A G 19: 45,504,497 (GRCm39) D397G probably damaging Het
Cables2 A T 2: 179,902,222 (GRCm39) V379E probably damaging Het
Cacna2d2 T C 9: 107,389,221 (GRCm39) L228P probably damaging Het
Cd109 A T 9: 78,574,639 (GRCm39) D541V probably damaging Het
Cdh26 A T 2: 178,108,382 (GRCm39) S327C probably damaging Het
Cep78 T C 19: 15,938,344 (GRCm39) K535E probably damaging Het
Ces1a A G 8: 93,753,969 (GRCm39) Y345H probably damaging Het
Col6a5 C A 9: 105,741,347 (GRCm39) R2524I probably damaging Het
Cracd A T 5: 77,004,256 (GRCm39) I206F probably damaging Het
Dctn1 G A 6: 83,171,169 (GRCm39) R661H probably damaging Het
Ddias T C 7: 92,508,800 (GRCm39) T372A probably benign Het
Dffb T C 4: 154,049,976 (GRCm39) T296A probably damaging Het
Dock8 A G 19: 25,057,241 (GRCm39) Q216R probably benign Het
Emx1 T C 6: 85,165,237 (GRCm39) S105P probably benign Het
Ep400 T C 5: 110,867,102 (GRCm39) Y1014C unknown Het
Fam193a A T 5: 34,623,102 (GRCm39) K1230M possibly damaging Het
Fgf9 A G 14: 58,347,028 (GRCm39) Q207R probably benign Het
Gm5460 G A 14: 33,767,775 (GRCm39) C461Y possibly damaging Het
Gpc1 T C 1: 92,783,660 (GRCm39) I249T probably benign Het
Htr1d T C 4: 136,170,815 (GRCm39) I348T probably damaging Het
Hyal4 A T 6: 24,765,737 (GRCm39) S364C probably damaging Het
Igfn1 T C 1: 135,897,275 (GRCm39) E1097G probably benign Het
Igkv1-133 A T 6: 67,701,944 (GRCm39) Q16L probably benign Het
Kcnh5 A T 12: 75,161,245 (GRCm39) I221N probably damaging Het
Kmt2a A G 9: 44,760,263 (GRCm39) Y529H probably damaging Het
Kyat1 T C 2: 30,076,710 (GRCm39) H218R possibly damaging Het
Met A T 6: 17,549,085 (GRCm39) D979V probably damaging Het
Midn A G 10: 79,986,144 (GRCm39) D78G probably benign Het
Myh1 A T 11: 67,102,052 (GRCm39) M811L probably benign Het
Myh7 T C 14: 55,210,838 (GRCm39) E1693G probably damaging Het
Myo15b A G 11: 115,755,565 (GRCm39) T979A probably benign Het
Myo18b A T 5: 113,006,274 (GRCm39) C879S probably damaging Het
Myom1 A G 17: 71,384,807 (GRCm39) T733A probably damaging Het
Ndufa9 A T 6: 126,821,362 (GRCm39) M76K possibly damaging Het
Nectin3 A G 16: 46,215,542 (GRCm39) C74R possibly damaging Het
Obscn A G 11: 58,970,972 (GRCm39) F2514L probably damaging Het
Or4a69 G A 2: 89,313,471 (GRCm39) Q3* probably null Het
Or52d3 T C 7: 104,229,149 (GRCm39) S99P probably damaging Het
Or5p81 CAAATA CA 7: 108,266,869 (GRCm39) probably null Het
P2ry2 A T 7: 100,647,706 (GRCm39) S200T probably benign Het
Pcdha5 G T 18: 37,094,542 (GRCm39) M350I probably benign Het
Pcdha5 G A 18: 37,094,834 (GRCm39) V448M probably damaging Het
Pex12 C T 11: 83,188,455 (GRCm39) R180H possibly damaging Het
Pip4p1 C G 14: 51,167,749 (GRCm39) V59L probably damaging Het
Pkd1l1 A T 11: 8,912,701 (GRCm39) V168E probably damaging Het
Prokr2 T A 2: 132,223,095 (GRCm39) D149V probably damaging Het
Rnf123 A G 9: 107,940,720 (GRCm39) V707A probably benign Het
Ryr2 T C 13: 11,774,589 (GRCm39) E1189G probably damaging Het
Scarf1 T C 11: 75,406,117 (GRCm39) F134L probably damaging Het
Sfxn5 A G 6: 85,309,260 (GRCm39) probably null Het
Shfl A T 9: 20,784,473 (GRCm39) I186F possibly damaging Het
Skic3 A G 13: 76,330,986 (GRCm39) E1472G probably damaging Het
Slc17a5 A T 9: 78,445,556 (GRCm39) V433D probably damaging Het
Snapc1 A G 12: 74,011,417 (GRCm39) T28A probably benign Het
Soat1 T C 1: 156,258,669 (GRCm39) Y528C probably damaging Het
Spem1 G A 11: 69,712,344 (GRCm39) R107C possibly damaging Het
Srcap T C 7: 127,141,319 (GRCm39) S1639P probably damaging Het
Sycp2 A T 2: 178,016,388 (GRCm39) N691K probably damaging Het
Syne2 A T 12: 76,142,311 (GRCm39) I6183F probably damaging Het
Tas2r110 A T 6: 132,845,433 (GRCm39) M155L probably benign Het
Tenm3 G A 8: 48,693,305 (GRCm39) T1859I probably damaging Het
Thsd7b T A 1: 130,030,809 (GRCm39) V1048D probably damaging Het
Vav3 T C 3: 109,248,482 (GRCm39) L43P probably damaging Het
Vmn1r30 A T 6: 58,412,437 (GRCm39) F132I probably benign Het
Vmn2r24 A G 6: 123,792,997 (GRCm39) R775G probably damaging Het
Vps13c T A 9: 67,883,189 (GRCm39) probably null Het
Vps37c T A 19: 10,683,569 (GRCm39) probably null Het
Wwp2 A G 8: 108,275,167 (GRCm39) D388G probably damaging Het
Xirp2 A T 2: 67,355,336 (GRCm39) T3366S probably benign Het
Zbtb49 A C 5: 38,360,701 (GRCm39) probably benign Het
Other mutations in Lamb2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01370:Lamb2 APN 9 108,364,932 (GRCm39) splice site probably null
IGL02072:Lamb2 APN 9 108,359,107 (GRCm39) nonsense probably null
IGL02079:Lamb2 APN 9 108,359,312 (GRCm39) missense probably damaging 1.00
IGL02087:Lamb2 APN 9 108,364,318 (GRCm39) missense possibly damaging 0.95
IGL02193:Lamb2 APN 9 108,366,559 (GRCm39) missense probably benign 0.00
IGL02199:Lamb2 APN 9 108,357,824 (GRCm39) missense possibly damaging 0.49
IGL02201:Lamb2 APN 9 108,364,741 (GRCm39) missense probably damaging 1.00
IGL02468:Lamb2 APN 9 108,364,348 (GRCm39) missense probably damaging 1.00
F6893:Lamb2 UTSW 9 108,359,755 (GRCm39) missense probably benign 0.12
R0053:Lamb2 UTSW 9 108,363,936 (GRCm39) nonsense probably null
R0053:Lamb2 UTSW 9 108,363,936 (GRCm39) nonsense probably null
R0122:Lamb2 UTSW 9 108,363,713 (GRCm39) missense probably benign 0.01
R0452:Lamb2 UTSW 9 108,363,553 (GRCm39) unclassified probably benign
R0524:Lamb2 UTSW 9 108,361,571 (GRCm39) missense possibly damaging 0.90
R0605:Lamb2 UTSW 9 108,363,304 (GRCm39) unclassified probably benign
R0737:Lamb2 UTSW 9 108,360,993 (GRCm39) missense probably benign 0.03
R1083:Lamb2 UTSW 9 108,360,892 (GRCm39) missense probably benign
R1159:Lamb2 UTSW 9 108,358,607 (GRCm39) missense probably damaging 1.00
R1283:Lamb2 UTSW 9 108,359,007 (GRCm39) missense possibly damaging 0.46
R1507:Lamb2 UTSW 9 108,367,581 (GRCm39) missense probably damaging 1.00
R1547:Lamb2 UTSW 9 108,359,824 (GRCm39) missense probably benign 0.00
R1576:Lamb2 UTSW 9 108,357,506 (GRCm39) missense probably damaging 0.96
R1647:Lamb2 UTSW 9 108,358,622 (GRCm39) critical splice donor site probably null
R1678:Lamb2 UTSW 9 108,360,885 (GRCm39) critical splice acceptor site probably null
R1740:Lamb2 UTSW 9 108,359,127 (GRCm39) missense probably damaging 1.00
R1803:Lamb2 UTSW 9 108,365,298 (GRCm39) missense probably benign
R1846:Lamb2 UTSW 9 108,364,586 (GRCm39) missense probably benign 0.00
R1863:Lamb2 UTSW 9 108,358,583 (GRCm39) missense probably benign 0.13
R2184:Lamb2 UTSW 9 108,357,752 (GRCm39) missense probably damaging 1.00
R2262:Lamb2 UTSW 9 108,357,809 (GRCm39) missense probably damaging 1.00
R2338:Lamb2 UTSW 9 108,359,340 (GRCm39) missense probably benign 0.20
R4084:Lamb2 UTSW 9 108,365,217 (GRCm39) missense probably benign 0.17
R4164:Lamb2 UTSW 9 108,367,497 (GRCm39) missense probably damaging 1.00
R4295:Lamb2 UTSW 9 108,363,410 (GRCm39) missense probably benign 0.42
R4422:Lamb2 UTSW 9 108,360,754 (GRCm39) missense probably damaging 0.99
R4497:Lamb2 UTSW 9 108,363,997 (GRCm39) missense probably damaging 1.00
R4880:Lamb2 UTSW 9 108,361,226 (GRCm39) splice site probably null
R4935:Lamb2 UTSW 9 108,364,700 (GRCm39) missense possibly damaging 0.93
R4977:Lamb2 UTSW 9 108,364,846 (GRCm39) missense probably damaging 0.99
R5152:Lamb2 UTSW 9 108,364,937 (GRCm39) missense probably benign
R5499:Lamb2 UTSW 9 108,365,001 (GRCm39) missense possibly damaging 0.50
R5724:Lamb2 UTSW 9 108,357,950 (GRCm39) splice site probably null
R5932:Lamb2 UTSW 9 108,357,810 (GRCm39) missense probably damaging 1.00
R5997:Lamb2 UTSW 9 108,357,587 (GRCm39) missense possibly damaging 0.65
R6052:Lamb2 UTSW 9 108,364,811 (GRCm39) nonsense probably null
R6142:Lamb2 UTSW 9 108,362,817 (GRCm39) nonsense probably null
R6245:Lamb2 UTSW 9 108,365,398 (GRCm39) splice site probably null
R6531:Lamb2 UTSW 9 108,360,925 (GRCm39) missense possibly damaging 0.78
R6557:Lamb2 UTSW 9 108,365,599 (GRCm39) missense probably damaging 1.00
R6562:Lamb2 UTSW 9 108,364,207 (GRCm39) missense possibly damaging 0.56
R6997:Lamb2 UTSW 9 108,358,496 (GRCm39) missense probably damaging 1.00
R7024:Lamb2 UTSW 9 108,366,687 (GRCm39) missense probably benign 0.00
R7116:Lamb2 UTSW 9 108,364,522 (GRCm39) missense probably damaging 1.00
R7146:Lamb2 UTSW 9 108,361,283 (GRCm39) missense possibly damaging 0.94
R7261:Lamb2 UTSW 9 108,358,496 (GRCm39) missense probably damaging 1.00
R7288:Lamb2 UTSW 9 108,365,523 (GRCm39) missense probably benign 0.20
R7404:Lamb2 UTSW 9 108,364,782 (GRCm39) missense probably damaging 1.00
R7456:Lamb2 UTSW 9 108,362,979 (GRCm39) missense possibly damaging 0.95
R7472:Lamb2 UTSW 9 108,363,347 (GRCm39) missense probably benign 0.01
R7623:Lamb2 UTSW 9 108,366,423 (GRCm39) missense possibly damaging 0.62
R8125:Lamb2 UTSW 9 108,364,722 (GRCm39) missense probably benign
R8153:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8154:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8155:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8156:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8157:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8419:Lamb2 UTSW 9 108,365,563 (GRCm39) missense probably benign 0.00
R8695:Lamb2 UTSW 9 108,363,365 (GRCm39) missense probably benign 0.08
R8825:Lamb2 UTSW 9 108,362,460 (GRCm39) missense probably benign 0.01
R9005:Lamb2 UTSW 9 108,361,370 (GRCm39) critical splice donor site probably null
R9315:Lamb2 UTSW 9 108,364,366 (GRCm39) missense possibly damaging 0.77
R9398:Lamb2 UTSW 9 108,364,366 (GRCm39) missense possibly damaging 0.77
R9419:Lamb2 UTSW 9 108,356,959 (GRCm39) missense unknown
R9450:Lamb2 UTSW 9 108,357,760 (GRCm39) nonsense probably null
R9495:Lamb2 UTSW 9 108,358,006 (GRCm39) missense probably damaging 1.00
R9514:Lamb2 UTSW 9 108,358,006 (GRCm39) missense probably damaging 1.00
R9529:Lamb2 UTSW 9 108,363,477 (GRCm39) missense probably benign 0.05
R9532:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
R9534:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
R9734:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
Z1176:Lamb2 UTSW 9 108,360,100 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TCTCGAGGAAGCTGCTATCCAG -3'
(R):5'- TGCGGTTACTGGTTACAAGCC -3'

Sequencing Primer
(F):5'- TATCCAGCCACCGGTGAC -3'
(R):5'- GGTTACAAGCCCTAGTCATCCTGATG -3'
Posted On 2014-12-04