Incidental Mutation 'R7456:Lamb2'
ID 578141
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission 045530-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R7456 (G1)
Quality Score 225.009
Status Not validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 108362979 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glutamic Acid at position 787 (D787E)
Ref Sequence ENSEMBL: ENSMUSP00000069087 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000006854] [ENSMUST00000065014]
AlphaFold Q61292
Predicted Effect probably benign
Transcript: ENSMUST00000006854
SMART Domains Protein: ENSMUSP00000006854
Gene: ENSMUSG00000006676

DomainStartEndE-ValueType
Pfam:CS 55 129 1.3e-6 PFAM
low complexity region 257 268 N/A INTRINSIC
Pfam:CS 326 414 7.1e-19 PFAM
Pfam:USP19_linker 415 537 2.2e-61 PFAM
Pfam:UCH 538 1253 1.2e-77 PFAM
Pfam:UCH_1 539 874 8.6e-11 PFAM
Pfam:zf-MYND 833 875 9.9e-11 PFAM
Pfam:UCH_1 1021 1235 7.1e-10 PFAM
low complexity region 1278 1287 N/A INTRINSIC
low complexity region 1301 1312 N/A INTRINSIC
transmembrane domain 1333 1355 N/A INTRINSIC
Predicted Effect possibly damaging
Transcript: ENSMUST00000065014
AA Change: D787E

PolyPhen 2 Score 0.947 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911
AA Change: D787E

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
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.8%
  • 20x: 99.5%
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: 75 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acer2 A G 4: 86,792,748 (GRCm39) D8G possibly damaging Het
Angpt4 T C 2: 151,780,987 (GRCm39) Y412H probably damaging Het
Ankef1 A G 2: 136,387,734 (GRCm39) D217G probably benign Het
Ano2 A T 6: 125,940,508 (GRCm39) I544F probably benign Het
App G A 16: 84,970,448 (GRCm39) Het
Arhgef26 A G 3: 62,247,476 (GRCm39) T187A probably benign Het
Axin1 T A 17: 26,362,139 (GRCm39) V161E probably damaging Het
Bbs7 A T 3: 36,648,527 (GRCm39) V407D probably damaging Het
C1qtnf3 A T 15: 10,972,137 (GRCm39) E141V probably benign Het
C2 A G 17: 35,083,558 (GRCm39) I469T probably damaging Het
Cc2d1a A G 8: 84,866,868 (GRCm39) probably null Het
Cd226 A T 18: 89,224,747 (GRCm39) I10F probably damaging Het
Cep295nl T C 11: 118,224,376 (GRCm39) K156R possibly damaging Het
Cfap20dc A T 14: 8,442,933 (GRCm38) L612* probably null Het
Cfap44 A G 16: 44,252,305 (GRCm39) T805A probably benign Het
Chd9 G T 8: 91,659,153 (GRCm39) E38* probably null Het
Cldnd2 C T 7: 43,091,109 (GRCm39) L14F not run Het
Cyp11b2 T C 15: 74,725,379 (GRCm39) T247A probably benign Het
Dennd11 T G 6: 40,383,774 (GRCm39) M423L probably benign Het
Dsc1 T C 18: 20,219,879 (GRCm39) S764G probably benign Het
Dsg3 A T 18: 20,664,420 (GRCm39) T473S probably benign Het
Fam193a A T 5: 34,578,132 (GRCm39) I209F possibly damaging Het
Foxs1 T C 2: 152,775,045 (GRCm39) K3E probably benign Het
Gabrr3 C T 16: 59,227,853 (GRCm39) Q37* probably null Het
Gcm2 A T 13: 41,256,751 (GRCm39) W333R probably benign Het
Gcn1 C T 5: 115,743,005 (GRCm39) Q1559* probably null Het
Gfm2 A T 13: 97,282,211 (GRCm39) K69* probably null Het
Gm14295 T G 2: 176,500,943 (GRCm39) C144W possibly damaging Het
Gm32742 G A 9: 51,071,270 (GRCm39) T5I probably damaging Het
Gm5093 T C 17: 46,750,679 (GRCm39) D116G probably damaging Het
Gsn A T 2: 35,172,718 (GRCm39) K3N possibly damaging Het
H2-M2 C T 17: 37,792,552 (GRCm39) D240N possibly damaging Het
Habp2 G C 19: 56,307,957 (GRCm39) G482R probably damaging Het
Hnrnpm A T 17: 33,865,622 (GRCm39) Y680N possibly damaging Het
Hrc T A 7: 44,986,320 (GRCm39) D490E possibly damaging Het
Impg2 A G 16: 56,080,276 (GRCm39) I693M probably benign Het
Itga7 A G 10: 128,777,805 (GRCm39) Y262C probably damaging Het
Kif1c A G 11: 70,619,424 (GRCm39) T1020A probably benign Het
Kif23 T C 9: 61,844,402 (GRCm39) I139V probably benign Het
Klk1b5 A G 7: 43,500,255 (GRCm39) E281G probably benign Het
Kpna4 A G 3: 69,000,181 (GRCm39) V275A probably damaging Het
Ldlrad3 A C 2: 101,785,270 (GRCm39) V235G probably damaging Het
Maneal A G 4: 124,750,767 (GRCm39) S330P probably damaging Het
Maz G A 7: 126,625,489 (GRCm39) Q35* probably null Het
Mthfd1l C T 10: 4,039,998 (GRCm39) T803M probably damaging Het
Muc5ac A G 7: 141,346,904 (GRCm39) Q325R probably benign Het
Myo3a C A 2: 22,412,255 (GRCm39) A758E probably benign Het
Ndufb7 A G 8: 84,293,482 (GRCm39) D12G probably benign Het
Nsun2 T A 13: 69,781,725 (GRCm39) C677S probably damaging Het
Obscn A G 11: 58,899,384 (GRCm39) F6471S probably benign Het
Or4c106 A T 2: 88,682,563 (GRCm39) I90F probably damaging Het
Or51k1 A G 7: 103,661,045 (GRCm39) V288A possibly damaging Het
Or7g32 T C 9: 19,408,844 (GRCm39) S267P probably damaging Het
Otof T C 5: 30,552,005 (GRCm39) D313G probably damaging Het
Paqr5 T C 9: 61,880,072 (GRCm39) D74G probably benign Het
Pigq A G 17: 26,153,580 (GRCm39) V365A unknown Het
Podn A T 4: 107,875,002 (GRCm39) N588K probably benign Het
Polr3b G A 10: 84,458,355 (GRCm39) G9R probably benign Het
Proser1 A G 3: 53,385,939 (GRCm39) H607R probably damaging Het
Ryr2 C T 13: 11,767,168 (GRCm39) V1241I probably benign Het
Sar1b G A 11: 51,682,181 (GRCm39) A170T probably benign Het
Slc22a17 T C 14: 55,149,716 (GRCm39) T191A probably benign Het
Slc35f3 CTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTC CTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTC 8: 127,115,779 (GRCm39) unknown Het
Slco6d1 A T 1: 98,349,082 (GRCm39) D51V possibly damaging Het
Snx16 G A 3: 10,500,541 (GRCm39) R143* probably null Het
Sytl2 T A 7: 89,998,055 (GRCm39) L19Q probably damaging Het
Tmcc3 A G 10: 94,418,174 (GRCm39) E345G possibly damaging Het
Ttn C T 2: 76,555,998 (GRCm39) A30336T probably damaging Het
Vmn1r44 A G 6: 89,870,401 (GRCm39) D49G probably benign Het
Vps35l C T 7: 118,403,340 (GRCm39) P628S probably benign Het
Vps41 T A 13: 19,048,204 (GRCm39) D801E probably benign Het
Wif1 G A 10: 120,932,554 (GRCm39) E311K probably benign Het
Zfp513 G T 5: 31,357,759 (GRCm39) R207S possibly damaging Het
Zfp52 C A 17: 21,781,615 (GRCm39) H488N probably damaging Het
Zfp738 A G 13: 67,817,619 (GRCm39) Y791H probably damaging 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
R2483:Lamb2 UTSW 9 108,357,758 (GRCm39) missense probably damaging 1.00
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
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'- ATGAGGAAGGTCTGATGCCCAG -3'
(R):5'- TGTGGGATCCAAGTCAGAGC -3'

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