Mouse Lmbr1l Conditional Knockout Project (CRISPR/Cas9)

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Mouse Lmbr1l Conditional Knockout Project (CRISPR/Cas9) https://www.alphaknockout.com Mouse Lmbr1l Conditional Knockout Project (CRISPR/Cas9) Objective: To create a Lmbr1l conditional knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering. Strategy summary: The Lmbr1l gene (NCBI Reference Sequence: NM_029098 ; Ensembl: ENSMUSG00000022999 ) is located on Mouse chromosome 15. 17 exons are identified, with the ATG start codon in exon 1 and the TGA stop codon in exon 17 (Transcript: ENSMUST00000023736). Exon 2~3 will be selected as conditional knockout region (cKO region). Deletion of this region should result in the loss of function of the Mouse Lmbr1l gene. To engineer the targeting vector, homologous arms and cKO region will be generated by PCR using BAC clone RP23-349E22 as template. Cas9, gRNA and targeting vector will be co-injected into fertilized eggs for cKO Mouse production. The pups will be genotyped by PCR followed by sequencing analysis. Note: Mice homozygous for an ENU-induced allele exhibit altered lymphopoiesis and lymphoid activation. Exon 2 starts from about 4.98% of the coding region. The knockout of Exon 2~3 will result in frameshift of the gene. The size of intron 1 for 5'-loxP site insertion: 2628 bp, and the size of intron 3 for 3'-loxP site insertion: 1019 bp. The size of effective cKO region: ~2165 bp. The cKO region does not have any other known gene. Page 1 of 8 https://www.alphaknockout.com Overview of the Targeting Strategy Wildtype allele 5' gRNA region gRNA region 3' 1 2 3 4 5 6 17 Targeting vector Targeted allele Constitutive KO allele (After Cre recombination) Legends Exon of mouse Lmbr1l Homology arm cKO region loxP site Page 2 of 8 https://www.alphaknockout.com Overview of the Dot Plot Window size: 10 bp Forward Reverse Complement Sequence 12 Note: The sequence of homologous arms and cKO region is aligned with itself to determine if there are tandem repeats. No significant tandem repeat is found in the dot plot matrix. So this region is suitable for PCR screening or sequencing analysis. Overview of the GC Content Distribution Window size: 300 bp Sequence 12 Summary: Full Length(8665bp) | A(21.85% 1893) | C(25.27% 2190) | T(26.68% 2312) | G(26.2% 2270) Note: The sequence of homologous arms and cKO region is analyzed to determine the GC content. Significant high GC-content regions are found. It may be difficult to construct this targeting vector. Page 3 of 8 https://www.alphaknockout.com BLAT Search Results (up) QUERY SCORE START END QSIZE IDENTITY CHROM STRAND START END SPAN ----------------------------------------------------------------------------------------------- browser details YourSeq 3000 1 3000 3000 100.0% chr15 - 98915472 98918471 3000 browser details YourSeq 83 2106 2204 3000 89.8% chr4 - 123270303 123270400 98 browser details YourSeq 82 2095 2200 3000 86.7% chr4 - 128739127 128739231 105 browser details YourSeq 80 2084 2200 3000 83.5% chr11 + 101127474 101127585 112 browser details YourSeq 78 2106 2200 3000 91.6% chr2 - 30411535 30558846 147312 browser details YourSeq 78 2107 2200 3000 89.3% chr17 + 31673974 31674066 93 browser details YourSeq 77 2106 2200 3000 88.3% chr15 - 99906022 99906115 94 browser details YourSeq 77 2095 2200 3000 86.7% chr15 + 74929242 75177896 248655 browser details YourSeq 75 2106 2200 3000 87.3% chrX - 152283063 152283156 94 browser details YourSeq 75 2106 2200 3000 87.3% chr2 - 125869028 125869121 94 browser details YourSeq 75 2104 2200 3000 86.5% chr15 - 10494526 10494621 96 browser details YourSeq 75 2106 2200 3000 88.9% chr8 + 106067049 106067142 94 browser details YourSeq 75 2095 2200 3000 87.4% chr6 + 140405297 140405401 105 browser details YourSeq 75 2106 2204 3000 89.5% chr1 + 150567831 150567929 99 browser details YourSeq 73 2110 2200 3000 90.2% chr4 - 119243601 119243691 91 browser details YourSeq 73 2106 2200 3000 86.2% chr4 - 117396492 117396585 94 browser details YourSeq 73 2106 2200 3000 86.2% chr17 - 21578081 21578174 94 browser details YourSeq 73 2106 2200 3000 86.2% chr10 - 19608491 19608584 94 browser details YourSeq 73 2106 2200 3000 87.8% chr15 + 81169570 81169663 94 browser details YourSeq 72 2106 2194 3000 91.1% chr11 - 84339811 84479714 139904 Note: The 3000 bp section upstream of Exon 2 is BLAT searched against the genome. No significant similarity is found. BLAT Search Results (down) QUERY SCORE START END QSIZE IDENTITY CHROM STRAND START END SPAN ----------------------------------------------------------------------------------------------- browser details YourSeq 3000 1 3000 3000 100.0% chr15 - 98910307 98913306 3000 browser details YourSeq 265 2264 2649 3000 88.7% chr5 - 76895227 76895605 379 browser details YourSeq 264 2240 2612 3000 90.4% chr11 + 97339592 97340006 415 browser details YourSeq 240 2255 2605 3000 90.8% chr10 - 59245338 59245909 572 browser details YourSeq 223 2066 2439 3000 91.2% chr17 - 35735334 35735933 600 browser details YourSeq 221 2234 2587 3000 91.1% chr11 - 95439788 95440230 443 browser details YourSeq 209 2253 2544 3000 90.2% chr8 - 70474603 70474885 283 browser details YourSeq 209 2040 2439 3000 85.8% chr17 - 27835450 27835793 344 browser details YourSeq 205 2045 2390 3000 89.6% chr14 - 31031920 31032285 366 browser details YourSeq 204 2067 2843 3000 84.8% chr3 - 103363326 103363976 651 browser details YourSeq 199 2072 2439 3000 86.5% chr2 - 39112311 39112628 318 browser details YourSeq 199 2044 2649 3000 83.3% chr16 - 13873789 13874267 479 browser details YourSeq 195 2136 2843 3000 92.0% chr4 - 120471537 120472381 845 browser details YourSeq 193 2072 2429 3000 91.1% chrX - 74507841 74508426 586 browser details YourSeq 192 2040 2843 3000 83.9% chr17 - 71401072 71401402 331 browser details YourSeq 192 2314 2626 3000 90.7% chr11 - 4733410 4733783 374 browser details YourSeq 191 2249 2601 3000 86.2% chr19 - 11952608 11952908 301 browser details YourSeq 190 2151 2843 3000 86.0% chr11 - 84927426 84928046 621 browser details YourSeq 182 2136 2439 3000 89.9% chr2 - 119143452 119144109 658 browser details YourSeq 178 2459 2748 3000 91.2% chr4 - 129366043 129438783 72741 Note: The 3000 bp section downstream of Exon 3 is BLAT searched against the genome. No significant similarity is found. Page 4 of 8 https://www.alphaknockout.com Gene and protein information: Lmbr1l limb region 1 like [ Mus musculus (house mouse) ] Gene ID: 74775, updated on 19-Oct-2019 Gene summary Official Symbol Lmbr1l provided by MGI Official Full Name limb region 1 like provided by MGI Primary source MGI:MGI:1289247 See related Ensembl:ENSMUSG00000022999 Gene type protein coding RefSeq status PROVISIONAL Organism Mus musculus Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus Also known as Limr; AA415653; D15Ertd735e; 1110013E13Rik Expression Broad expression in testis adult (RPKM 85.7), thymus adult (RPKM 30.7) and 20 other tissues See more Orthologs human all Genomic context Location: 15 F1; 15 55.1 cM See Lmbr1l in Genome Data Viewer Exon count: 18 Annotation release Status Assembly Chr Location 108 current GRCm38.p6 (GCF_000001635.26) 15 NC_000081.6 (98903918..98918098, complement) Build 37.2 previous assembly MGSCv37 (GCF_000001635.18) 15 NC_000081.5 (98734352..98748529, complement) Chromosome 15 - NC_000081.6 Page 5 of 8 https://www.alphaknockout.com Transcript information: This gene has 8 transcripts Gene: Lmbr1l ENSMUSG00000022999 Description limb region 1 like [Source:MGI Symbol;Acc:MGI:1289247] Gene Synonyms 1110013E13Rik, D15Ertd735e Location Chromosome 15: 98,903,917-98,918,231 reverse strand. GRCm38:CM001008.2 About this gene This gene has 8 transcripts (splice variants), 206 orthologues, 1 paralogue, is a member of 1 Ensembl protein family and is associated with 1 phenotype. Transcripts Name Transcript ID bp Protein Translation ID Biotype CCDS UniProt Flags Lmbr1l-201 ENSMUST00000023736.9 2304 489aa ENSMUSP00000023736.8 Protein coding CCDS27811 Q9D1E5 TSL:1 GENCODE basic APPRIS P1 Lmbr1l-205 ENSMUST00000127548.1 970 No protein - Retained intron - - TSL:3 Lmbr1l-203 ENSMUST00000123950.8 687 No protein - Retained intron - - TSL:3 Lmbr1l-208 ENSMUST00000231087.1 562 No protein - Retained intron - - - Lmbr1l-207 ENSMUST00000135051.2 547 No protein - Retained intron - - TSL:5 Lmbr1l-206 ENSMUST00000128818.1 380 No protein - Retained intron - - TSL:2 Lmbr1l-202 ENSMUST00000109127.7 2548 No protein - lncRNA - - TSL:1 Lmbr1l-204 ENSMUST00000126159.1 656 No protein - lncRNA - - TSL:3 Page 6 of 8 https://www.alphaknockout.com 34.31 kb Forward strand 98.90Mb 98.91Mb 98.92Mb Genes Gm49442-201 >lncRNA (Comprehensive set... Contigs AC161165.5 > Genes (Comprehensive set... < Dhh-201protein coding < Lmbr1l-201protein coding < Rhebl1-207protein coding < Lmbr1l-202lncRNA < Rhebl1-206protein coding < Lmbr1l-208retained intron < Lmbr1l-206retained intron < Dhh-202protein coding < Lmbr1l-203retained intron < Lmbr1l-204lncRNA < Lmbr1l-205retained intron < Lmbr1l-207retained intron Regulatory Build 98.90Mb 98.91Mb 98.92Mb Reverse strand 34.31 kb Regulation Legend CTCF Enhancer Open Chromatin Promoter Promoter Flank Transcription Factor Binding Site Gene Legend Protein Coding Ensembl protein coding merged Ensembl/Havana Non-Protein Coding processed transcript RNA gene Page 7 of 8 https://www.alphaknockout.com Transcript: ENSMUST00000023736 < Lmbr1l-201protein coding Reverse strand 14.31 kb ENSMUSP00000023... Transmembrane heli... Low complexity (Seg) Coiled-coils (Ncoils) Prints Lipocalin-interacting membrane receptor Pfam LMBR1-like membrane protein PANTHER Lipocalin-interacting membrane receptor PTHR12625:SF2 All sequence SNPs/i... Sequence variants (dbSNP and all other sources) Variant Legend missense variant splice region variant synonymous variant Scale bar 0 60 120 180 240 300 360 420 489 We wish to acknowledge the following valuable scientific information resources: Ensembl, MGI, NCBI, UCSC. Page 8 of 8.
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