Incidental Mutation 'R6245:Lamb2'
ID 505537
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission 044403-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R6245 (G1)
Quality Score 225.009
Status Not validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 108365398 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000069087 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000006854] [ENSMUST00000065014] [ENSMUST00000085044] [ENSMUST00000166103] [ENSMUST00000178075] [ENSMUST00000193678]
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 probably null
Transcript: ENSMUST00000065014
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911

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 probably benign
Transcript: ENSMUST00000085044
SMART Domains Protein: ENSMUSP00000082119
Gene: ENSMUSG00000006676

DomainStartEndE-ValueType
Pfam:CS 55 129 4.7e-7 PFAM
low complexity region 257 268 N/A INTRINSIC
Pfam:CS 326 414 2.5e-15 PFAM
low complexity region 449 460 N/A INTRINSIC
low complexity region 524 530 N/A INTRINSIC
Pfam:UCH 538 1253 7.4e-84 PFAM
Pfam:UCH_1 539 879 2.3e-13 PFAM
Pfam:zf-MYND 833 875 2.4e-10 PFAM
Pfam:UCH_1 1020 1235 2.9e-11 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000166103
SMART Domains Protein: ENSMUSP00000128573
Gene: ENSMUSG00000006676

DomainStartEndE-ValueType
Pfam:CS 55 129 2.6e-7 PFAM
low complexity region 257 268 N/A INTRINSIC
Pfam:CS 326 390 3.9e-9 PFAM
low complexity region 425 436 N/A INTRINSIC
low complexity region 500 506 N/A INTRINSIC
Pfam:UCH 514 1229 1.8e-84 PFAM
Pfam:UCH_1 515 855 5.5e-14 PFAM
Pfam:zf-MYND 809 851 1.7e-10 PFAM
Pfam:UCH_1 996 1211 6.9e-12 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000178075
SMART Domains Protein: ENSMUSP00000135930
Gene: ENSMUSG00000006676

DomainStartEndE-ValueType
Pfam:CS 55 129 1e-6 PFAM
low complexity region 258 269 N/A INTRINSIC
Pfam:CS 327 415 5.4e-15 PFAM
low complexity region 450 461 N/A INTRINSIC
low complexity region 525 531 N/A INTRINSIC
Pfam:UCH 539 1254 4.9e-84 PFAM
Pfam:UCH_1 540 880 1.4e-13 PFAM
Pfam:zf-MYND 834 876 5.2e-10 PFAM
Pfam:UCH_1 1021 1236 1.8e-11 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000192854
Predicted Effect noncoding transcript
Transcript: ENSMUST00000193301
Predicted Effect noncoding transcript
Transcript: ENSMUST00000194421
Predicted Effect probably benign
Transcript: ENSMUST00000193678
SMART Domains Protein: ENSMUSP00000141738
Gene: ENSMUSG00000006676

DomainStartEndE-ValueType
Pfam:CS 55 129 6.8e-7 PFAM
low complexity region 258 269 N/A INTRINSIC
Pfam:CS 327 415 3.6e-15 PFAM
low complexity region 448 459 N/A INTRINSIC
low complexity region 523 529 N/A INTRINSIC
Pfam:UCH 537 1252 3.8e-84 PFAM
Pfam:UCH_1 538 878 1.1e-13 PFAM
Pfam:zf-MYND 832 874 5.1e-10 PFAM
Pfam:UCH_1 1019 1234 1.4e-11 PFAM
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.6%
  • 20x: 96.0%
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: 67 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca9 A G 11: 110,026,249 (GRCm39) I937T probably damaging Het
Adgrl3 T A 5: 81,836,403 (GRCm39) N720K probably benign Het
Akr1c21 T G 13: 4,625,231 (GRCm39) V54G possibly damaging Het
Alpi G T 1: 87,028,556 (GRCm39) D111E probably damaging Het
Armc3 C T 2: 19,253,516 (GRCm39) T219M probably damaging Het
Bms1 T A 6: 118,373,797 (GRCm39) E780V probably damaging Het
Ccdc159 T C 9: 21,846,864 (GRCm39) S244P probably damaging Het
Cdon T C 9: 35,388,235 (GRCm39) W737R probably damaging Het
Chdh T A 14: 29,757,262 (GRCm39) V395D probably damaging Het
Col22a1 C A 15: 71,845,665 (GRCm39) D366Y probably damaging Het
Cplane1 T C 15: 8,207,902 (GRCm39) Y218H probably benign Het
Crnkl1 T A 2: 145,770,051 (GRCm39) N264I probably benign Het
Ctnnd2 T C 15: 30,905,894 (GRCm39) L847P probably damaging Het
Cyp4a31 A C 4: 115,428,545 (GRCm39) T382P possibly damaging Het
Dcaf8 A T 1: 171,993,434 (GRCm39) M1L probably benign Het
Ddx31 T A 2: 28,734,994 (GRCm39) F52I probably benign Het
Dynlt5 A G 4: 102,845,864 (GRCm39) N32S probably benign Het
Efcab3 A T 11: 104,675,834 (GRCm39) Y1542F probably benign Het
Eps15 G A 4: 109,240,063 (GRCm39) S852N possibly damaging Het
Fchsd1 A T 18: 38,095,828 (GRCm39) L552Q probably damaging Het
Fetub C T 16: 22,751,081 (GRCm39) R143C probably damaging Het
Frem2 T C 3: 53,563,245 (GRCm39) M421V probably benign Het
Gm1110 T G 9: 26,832,043 (GRCm39) H36P probably benign Het
Hadha C T 5: 30,325,042 (GRCm39) probably null Het
Hspa4 C T 11: 53,153,766 (GRCm39) E702K probably benign Het
Intu C A 3: 40,629,756 (GRCm39) T362K probably damaging Het
Jaml C T 9: 45,009,217 (GRCm39) T248I probably damaging Het
Kcnj1 A T 9: 32,308,163 (GRCm39) S176C probably damaging Het
Kcnj9 A G 1: 172,153,704 (GRCm39) L140P probably damaging Het
Kif7 T C 7: 79,351,891 (GRCm39) K957R probably damaging Het
Klc4 T A 17: 46,947,605 (GRCm39) I366F probably damaging Het
Madd T C 2: 91,008,449 (GRCm39) D151G probably benign Het
Man2a1 C A 17: 65,017,821 (GRCm39) A689E probably damaging Het
Mapk8ip1 C A 2: 92,219,589 (GRCm39) G81C probably damaging Het
Msmp T C 4: 43,583,909 (GRCm39) Y48C probably damaging Het
Muc6 T C 7: 141,235,086 (GRCm39) N567S probably damaging Het
Nrap A G 19: 56,342,653 (GRCm39) Y748H probably damaging Het
Nrap C T 19: 56,368,307 (GRCm39) A192T possibly damaging Het
Or2p2 T A 13: 21,256,860 (GRCm39) T204S possibly damaging Het
Or2y14 T A 11: 49,404,992 (GRCm39) F176I possibly damaging Het
Or5w15 G C 2: 87,568,240 (GRCm39) Q143E possibly damaging Het
Pcdhb8 T G 18: 37,490,222 (GRCm39) D633E possibly damaging Het
Pcdhb9 G A 18: 37,536,207 (GRCm39) V734M probably damaging Het
Plscr1 T C 9: 92,141,374 (GRCm39) Y21H unknown Het
Ptk2b G T 14: 66,400,515 (GRCm39) P767T probably damaging Het
Ptprz1 T C 6: 23,051,989 (GRCm39) Y1424H probably damaging Het
Sec31a T A 5: 100,534,043 (GRCm39) Q118L probably benign Het
Selenop A G 15: 3,304,216 (GRCm39) S21G probably damaging Het
Shank1 G A 7: 44,001,677 (GRCm39) S1132N unknown Het
Slf1 A G 13: 77,232,502 (GRCm39) L534P probably damaging Het
Sparcl1 T A 5: 104,233,013 (GRCm39) H596L probably damaging Het
Spocd1 C T 4: 129,850,901 (GRCm39) probably null Het
Tbc1d24 A T 17: 24,404,967 (GRCm39) I59N probably damaging Het
Tjp3 G A 10: 81,113,110 (GRCm39) T580I probably benign Het
Tmem154 C T 3: 84,591,603 (GRCm39) T51M possibly damaging Het
Tmem8b G A 4: 43,690,246 (GRCm39) V894I probably benign Het
Trbv20 A T 6: 41,165,840 (GRCm39) L88F possibly damaging Het
Tssk2 A C 16: 17,716,812 (GRCm39) I72L possibly damaging Het
Tub T A 7: 108,626,265 (GRCm39) I267N probably damaging Het
Vmn2r104 A T 17: 20,261,829 (GRCm39) F434I possibly damaging Het
Vmn2r42 T C 7: 8,195,733 (GRCm39) N471S probably damaging Het
Vmn2r94 C G 17: 18,478,385 (GRCm39) G121R probably damaging Het
Wdr72 T C 9: 74,055,505 (GRCm39) S245P probably damaging Het
Zbtb42 A G 12: 112,645,969 (GRCm39) Y48C probably damaging Het
Zdbf2 T C 1: 63,343,592 (GRCm39) V657A possibly damaging Het
Zfp768 A T 7: 126,943,263 (GRCm39) C288* probably null Het
Zfp988 T A 4: 147,416,470 (GRCm39) C301* probably null 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
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'- GCCTGACTCAGTTAGAAGCAGAG -3'
(R):5'- CCAAATGTTGGCGGTTGAAG -3'

Sequencing Primer
(F):5'- CTGTGCAGGATGAGAACTTCAATGC -3'
(R):5'- AAGTTTTCTTTTTGGGCACCCATTAG -3'
Posted On 2018-02-28