https://www.alphaknockout.com
Mouse Osbpl8 Conditional Knockout Project (CRISPR/Cas9)
Objective: To create a Osbpl8 conditional knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering.
Strategy summary: The Osbpl8 gene (NCBI Reference Sequence: NM_175489 ; Ensembl: ENSMUSG00000020189 ) is located on Mouse chromosome 10. 24 exons are identified, with the ATG start codon in exon 2 and the TAG stop codon in exon 24 (Transcript: ENSMUST00000105275). Exon 5 will be selected as conditional knockout region (cKO region). Deletion of this region should result in the loss of function of the Mouse Osbpl8 gene. To engineer the targeting vector, homologous arms and cKO region will be generated by PCR using BAC clone RP23-456P17 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 a gene trap allele exhibit elevated of HDL and gender-specific alterations in lipid metabolism.
Exon 5 starts from about 8.17% of the coding region. The knockout of Exon 5 will result in frameshift of the gene. The size of intron 4 for 5'-loxP site insertion: 21997 bp, and the size of intron 5 for 3'-loxP site insertion: 7421 bp. The size of effective cKO region: ~571 bp. The cKO region does not have any other known gene.
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Overview of the Targeting Strategy
Wildtype allele gRNA region 5' gRNA region 3'
1 5 24 Targeting vector
Targeted allele
Constitutive KO allele (After Cre recombination)
Legends Exon of mouse Osbpl8 Homology arm cKO region loxP site
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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(7071bp) | A(28.52% 2017) | C(20.24% 1431) | T(31.31% 2214) | G(19.93% 1409)
Note: The sequence of homologous arms and cKO region is analyzed to determine the GC content. No significant high GC-content region is found. So this region is suitable for PCR screening or sequencing analysis.
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BLAT Search Results (up)
QUERY SCORE START END QSIZE IDENTITY CHROM STRAND START END SPAN ------browser details YourSeq 3000 1 3000 3000 100.0% chr10 + 111252439 111255438 3000 browser details YourSeq 239 2528 2913 3000 87.0% chr2 - 80389043 80389472 430 browser details YourSeq 237 2543 2991 3000 86.9% chr11 - 94613676 94614153 478 browser details YourSeq 237 2598 3000 3000 84.5% chr12 + 117473501 117473920 420 browser details YourSeq 227 2528 2924 3000 81.7% chr16 + 34428838 34429264 427 browser details YourSeq 215 2595 2957 3000 81.7% chrX - 103884868 103885233 366 browser details YourSeq 211 2595 2924 3000 84.4% chr12 + 28921023 28921352 330 browser details YourSeq 208 2540 2914 3000 84.2% chr6 - 112418339 112418729 391 browser details YourSeq 207 2284 2943 3000 79.0% chr11 - 98861260 98861745 486 browser details YourSeq 202 2595 2939 3000 84.2% chr14 - 26966678 26967026 349 browser details YourSeq 201 2570 2924 3000 81.8% chr1 - 163605622 163605963 342 browser details YourSeq 197 2529 2924 3000 85.6% chr2 - 161631598 161632030 433 browser details YourSeq 196 2536 2922 3000 85.8% chr4_GL456350_random - 96523 96919 397 browser details YourSeq 196 2536 2922 3000 85.8% chr4 - 42474873 42475269 397 browser details YourSeq 194 2529 2951 3000 87.3% chr9 - 60556912 60557363 452 browser details YourSeq 194 2541 2945 3000 86.2% chr18 + 32807573 32808054 482 browser details YourSeq 193 2543 2943 3000 80.0% chr13 - 29132655 29133049 395 browser details YourSeq 192 2528 2920 3000 82.7% chr9 + 85875485 85875897 413 browser details YourSeq 192 2536 2922 3000 84.5% chr4 + 42371231 42371627 397 browser details YourSeq 192 2529 2920 3000 87.7% chr11 + 52863615 52864050 436
Note: The 3000 bp section upstream of Exon 5 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% chr10 + 111256010 111259009 3000 browser details YourSeq 253 118 570 3000 82.0% chr2 - 117933524 117933968 445 browser details YourSeq 253 111 608 3000 83.8% chr1 + 128747150 128747642 493 browser details YourSeq 240 111 597 3000 85.0% chr8 + 125625174 125625641 468 browser details YourSeq 228 110 570 3000 83.0% chrX + 70960117 70960563 447 browser details YourSeq 227 113 608 3000 86.4% chr4 - 100703174 100703651 478 browser details YourSeq 226 204 592 3000 84.6% chr13 + 37098934 37099311 378 browser details YourSeq 223 114 592 3000 87.2% chr5 - 143155502 143155980 479 browser details YourSeq 217 113 606 3000 84.1% chr8 - 87135063 87135512 450 browser details YourSeq 215 114 565 3000 85.0% chr9 - 120255837 120256275 439 browser details YourSeq 213 113 616 3000 90.6% chr18 + 45446537 45492851 46315 browser details YourSeq 213 111 605 3000 88.1% chr17 + 84542540 84543047 508 browser details YourSeq 212 111 605 3000 82.0% chr2 - 154180962 154181403 442 browser details YourSeq 212 110 566 3000 89.3% chr8 + 57419158 57419659 502 browser details YourSeq 212 113 592 3000 86.1% chr13 + 91293721 91294195 475 browser details YourSeq 211 108 607 3000 87.3% chr1 + 24608306 24608800 495 browser details YourSeq 207 111 610 3000 89.1% chr18 - 39951548 39952068 521 browser details YourSeq 205 193 605 3000 88.4% chr3 - 133421673 133422088 416 browser details YourSeq 203 111 575 3000 85.1% chr15 + 9785101 9785562 462 browser details YourSeq 201 114 605 3000 85.7% chr4 + 12224307 12224793 487
Note: The 3000 bp section downstream of Exon 5 is BLAT searched against the genome. No significant similarity is found.
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Gene and protein information: Osbpl8 oxysterol binding protein-like 8 [ Mus musculus (house mouse) ] Gene ID: 237542, updated on 10-Oct-2019
Gene summary
Official Symbol Osbpl8 provided by MGI Official Full Name oxysterol binding protein-like 8 provided by MGI Primary source MGI:MGI:2443807 See related Ensembl:ENSMUSG00000020189 Gene type protein coding RefSeq status REVIEWED Organism Mus musculus Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus Also known as ORP-8; AA536976; AA536995; C730029P18Rik; D330025H14Rik Summary This gene encodes a member of the oxysterol-binding protein (Osbp) family, a group of intracellular lipid receptors. Like Expression most members, the encoded protein contains an N-terminal pleckstrin homology domain and a highly conserved C-terminal Osbp-like sterol-binding domain. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008] Orthologs Ubiquitous expression in CNS E18 (RPKM 7.5), frontal lobe adult (RPKM 6.6) and 25 other tissues See more human all
Genomic context
Location: 10; 10 D1 See Osbpl8 in Genome Data Viewer
Exon count: 26
Annotation release Status Assembly Chr Location
108 current GRCm38.p6 (GCF_000001635.26) 10 NC_000076.6 (111164742..111297249)
Build 37.2 previous assembly MGSCv37 (GCF_000001635.18) 10 NC_000076.5 (110601858..110734303)
Chromosome 10 - NC_000076.6
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Transcript information: This gene has 5 transcripts
Gene: Osbpl8 ENSMUSG00000020189
Description oxysterol binding protein-like 8 [Source:MGI Symbol;Acc:MGI:2443807] Gene Synonyms D330025H14Rik, ORP-8 Location Chromosome 10: 111,164,752-111,297,249 forward strand. GRCm38:CM001003.2 About this gene This gene has 5 transcripts (splice variants), 206 orthologues, 11 paralogues, is a member of 1 Ensembl protein family and is associated with 5 phenotypes. Transcripts
Name Transcript ID bp Protein Translation ID Biotype CCDS UniProt Flags
Osbpl8-202 ENSMUST00000105275.8 7204 889aa ENSMUSP00000100911.1 Protein coding CCDS36056 B9EJ86 TSL:1 GENCODE basic APPRIS ALT1
Osbpl8-201 ENSMUST00000095310.2 3622 847aa ENSMUSP00000092948.1 Protein coding CCDS24166 A0A0R4J150 TSL:1 GENCODE basic APPRIS P3
Osbpl8-205 ENSMUST00000238838.1 2523 695aa ENSMUSP00000158904.1 Protein coding - - CDS 3' incomplete
Osbpl8-204 ENSMUST00000220139.1 2460 No protein - Retained intron - - TSL:1
Osbpl8-203 ENSMUST00000217693.1 624 No protein - lncRNA - - TSL:3
152.50 kb Forward strand 111.20Mb 111.25Mb 111.30Mb Genes (Comprehensive set... Gm8873-201 >processed pseudogene Osbpl8-203 >lncRNA Bbs10-202 >retained intron
Osbpl8-202 >protein coding
Osbpl8-201 >protein coding
Osbpl8-204 >retained intron Bbs10-201 >protein coding
Gm17849-201 >processed pseudogene Osbpl8-205 >protein coding
Contigs AC124399.4 > < AC121871.3 Regulatory Build
111.20Mb 111.25Mb 111.30Mb Reverse strand 152.50 kb
Regulation Legend
CTCF Enhancer Open Chromatin Promoter Promoter Flank
Gene Legend Protein Coding
merged Ensembl/Havana Ensembl protein coding
Non-Protein Coding
pseudogene processed transcript RNA gene
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Transcript: ENSMUST00000105275
132.50 kb Forward strand
Osbpl8-202 >protein coding
ENSMUSP00000100... Transmembrane heli... MobiDB lite Low complexity (Seg) Coiled-coils (Ncoils) Superfamily SSF50729 Oxysterol-binding protein superfamily
SMART Pleckstrin homology domain Pfam Pleckstrin homology domain Oxysterol-binding protein
PROSITE profiles Pleckstrin homology domain PROSITE patterns Oxysterol-binding protein, conserved site PANTHER Oxysterol-binding protein
PTHR10972:SF98 Gene3D PH-like domain superfamily 2.40.160.120 1.20.120.1290
CDD cd13286
All sequence SNPs/i... Sequence variants (dbSNP and all other sources)
Variant Legend stop gained missense variant synonymous variant
Scale bar 0 80 160 240 320 400 480 560 640 720 800 889
We wish to acknowledge the following valuable scientific information resources: Ensembl, MGI, NCBI, UCSC.
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