Incidental Mutation 'R5997:Lamb2'
ID 480632
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission 044176-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R5997 (G1)
Quality Score 225.009
Status Validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 108357587 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Serine at position 66 (T66S)
Ref Sequence ENSEMBL: ENSMUSP00000142304 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065014] [ENSMUST00000194147] [ENSMUST00000195058] [ENSMUST00000195483]
AlphaFold Q61292
Predicted Effect probably benign
Transcript: ENSMUST00000065014
AA Change: T66S

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911
AA Change: T66S

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 benign
Transcript: ENSMUST00000195058
AA Change: T66S

PolyPhen 2 Score 0.264 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000141757
Gene: ENSMUSG00000052911
AA Change: T66S

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
Pfam:Laminin_N 50 102 6.2e-16 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000195483
AA Change: T66S

PolyPhen 2 Score 0.653 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000142304
Gene: ENSMUSG00000052911
AA Change: T66S

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
LamNT 44 125 3e-3 SMART
Coding Region Coverage
  • 1x: 99.8%
  • 3x: 99.4%
  • 10x: 97.1%
  • 20x: 90.5%
Validation Efficiency 100% (78/78)
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: 78 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb9 A T 5: 124,227,878 (GRCm39) V121E possibly damaging Het
Acsbg3 A T 17: 57,183,373 (GRCm39) D38V probably benign Het
Adamts20 T A 15: 94,277,628 (GRCm39) Y278F probably damaging Het
Adcy7 A T 8: 89,053,020 (GRCm39) D972V probably benign Het
Adgrf3 C A 5: 30,403,360 (GRCm39) probably null Het
Ahdc1 G T 4: 132,791,206 (GRCm39) G816C probably benign Het
Aifm3 A G 16: 17,319,994 (GRCm39) K283E probably benign Het
Akap6 T C 12: 52,984,016 (GRCm39) probably null Het
Ank1 T C 8: 23,589,678 (GRCm39) L593P probably damaging Het
Apol11b T A 15: 77,519,697 (GRCm39) T128S probably benign Het
C1qtnf7 C A 5: 43,773,427 (GRCm39) T235K probably damaging Het
Camk2a A T 18: 61,111,029 (GRCm39) I73F probably damaging Het
Ccdc121rt3 C T 5: 112,502,874 (GRCm39) V277M possibly damaging Het
Cd109 G T 9: 78,612,344 (GRCm39) V1244F possibly damaging Het
Cep164 A G 9: 45,680,761 (GRCm39) L1240S possibly damaging Het
Cnga1 T A 5: 72,761,918 (GRCm39) D532V probably damaging Het
Cyp4a14 A T 4: 115,353,297 (GRCm39) L5* probably null Het
Cyp4a30b A T 4: 115,316,588 (GRCm39) K405* probably null Het
Dchs1 T C 7: 105,403,302 (GRCm39) D3080G probably benign Het
Ddx1 T C 12: 13,287,800 (GRCm39) D168G probably damaging Het
Dhx57 T G 17: 80,553,235 (GRCm39) K1231Q probably damaging Het
Dnah14 A G 1: 181,597,670 (GRCm39) N3640D probably benign Het
Dock4 T A 12: 40,805,833 (GRCm39) L935Q probably damaging Het
Dus2 A T 8: 106,772,698 (GRCm39) R269S probably benign Het
E230025N22Rik G A 18: 36,822,161 (GRCm39) R201C possibly damaging Het
Erbb3 G A 10: 128,419,054 (GRCm39) T269M probably damaging Het
Fbxo43 T C 15: 36,162,239 (GRCm39) R323G probably damaging Het
Fktn A G 4: 53,735,061 (GRCm39) H233R probably benign Het
Ftsj3 A T 11: 106,143,077 (GRCm39) D412E probably damaging Het
Fzd7 A T 1: 59,523,703 (GRCm39) M529L probably benign Het
Fzr1 T A 10: 81,206,660 (GRCm39) probably null Het
Ganc T G 2: 120,261,086 (GRCm39) V257G possibly damaging Het
Garin1a T A 6: 29,290,423 (GRCm39) L267* probably null Het
Gm4131 T C 14: 62,702,207 (GRCm39) K254E probably damaging Het
Gm7347 G T 5: 26,262,247 (GRCm39) Y91* probably null Het
Gm9857 G A 3: 108,847,481 (GRCm39) probably benign Het
Grpel1 T C 5: 36,622,592 (GRCm39) S19P probably benign Het
Gtf3c4 T C 2: 28,723,723 (GRCm39) K670E possibly damaging Het
H2bc7 G A 13: 23,758,277 (GRCm39) probably benign Het
Hmcn1 G T 1: 150,579,924 (GRCm39) Q1938K possibly damaging Het
Hnrnpk T C 13: 58,546,971 (GRCm39) D71G probably damaging Het
Hspa4l G A 3: 40,722,411 (GRCm39) R311H probably damaging Het
Igkv3-5 T A 6: 70,640,688 (GRCm39) F56L probably benign Het
Igkv6-20 T A 6: 70,312,898 (GRCm39) T92S possibly damaging Het
Krt8 C T 15: 101,909,029 (GRCm39) V200I possibly damaging Het
Lamp3 A G 16: 19,519,778 (GRCm39) L135S probably benign Het
Lrguk A G 6: 34,106,078 (GRCm39) Y701C probably damaging Het
Mcc G T 18: 44,582,388 (GRCm39) L588M probably damaging Het
Mcidas T A 13: 113,135,120 (GRCm39) L234Q probably damaging Het
Mtmr14 T A 6: 113,257,575 (GRCm39) L208Q probably damaging Het
Myof A G 19: 37,893,747 (GRCm39) F1139L possibly damaging Het
Nlrp14 C A 7: 106,781,703 (GRCm39) T300K probably benign Het
Or2d36 A T 7: 106,746,535 (GRCm39) E4V possibly damaging Het
Or2m13 T A 16: 19,226,694 (GRCm39) H24L probably benign Het
Or5b118 A G 19: 13,448,870 (GRCm39) I179V probably benign Het
Or8b41 A T 9: 38,055,097 (GRCm39) Y217F probably damaging Het
Orc2 A G 1: 58,511,547 (GRCm39) I354T probably damaging Het
Pard3b G T 1: 62,115,568 (GRCm39) S140I probably damaging Het
Pcgf5 A G 19: 36,412,003 (GRCm39) D49G probably benign Het
Pcsk6 T C 7: 65,609,041 (GRCm39) F388S probably damaging Het
Prokr2 A C 2: 132,223,362 (GRCm39) I60S probably damaging Het
Rab33b A G 3: 51,391,900 (GRCm39) T50A possibly damaging Het
Rbms3 T C 9: 116,548,457 (GRCm39) D61G probably damaging Het
Rhcg T A 7: 79,250,262 (GRCm39) K274* probably null Het
Rnf112 C T 11: 61,341,848 (GRCm39) V319M possibly damaging Het
Rnf44 A T 13: 54,830,613 (GRCm39) S265T possibly damaging Het
Sf3a3 A G 4: 124,615,851 (GRCm39) D168G probably damaging Het
Sik2 A G 9: 50,806,642 (GRCm39) probably null Het
Slco1a5 T A 6: 142,198,839 (GRCm39) L275F probably benign Het
Smtnl1 T C 2: 84,645,722 (GRCm39) H383R probably damaging Het
Spns3 T G 11: 72,429,904 (GRCm39) T175P probably damaging Het
Togaram1 A G 12: 65,042,312 (GRCm39) T1174A probably benign Het
Tradd C T 8: 105,987,277 (GRCm39) E10K possibly damaging Het
Ttc7b A T 12: 100,339,819 (GRCm39) Y579N probably damaging Het
Uncx G A 5: 139,533,344 (GRCm39) G470R probably damaging Het
Vav3 T A 3: 109,408,777 (GRCm39) M177K probably damaging Het
Wfs1 A T 5: 37,125,094 (GRCm39) I599N probably damaging Het
Zfp454 G A 11: 50,764,449 (GRCm39) H217Y 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
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'- GGGCCTACTTCTAAGTGGTGAG -3'
(R):5'- AGGAAACACTTCTTTTCGTCCTG -3'

Sequencing Primer
(F):5'- TGGCAGGCTGTTCCCAG -3'
(R):5'- GAAACACTTCTTTTCGTCCTGGATTG -3'
Posted On 2017-06-26