https://www.alphaknockout.com

Mouse Cox7c Conditional Knockout Project (CRISPR/Cas9)

Objective: To create a Cox7c conditional knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering.

Strategy summary: The Cox7c (NCBI Reference Sequence: NM_007749 ; Ensembl: ENSMUSG00000017778 ) is located on Mouse 13. 3 exons are identified, with the ATG start codon in exon 1 and the TAA stop codon in exon 2 (Transcript: ENSMUST00000131011). Exon 1~2 will be selected as conditional knockout region (cKO region). Deletion of this region should result in the loss of function of the Mouse Cox7c gene. To engineer the targeting vector, homologous arms and cKO region will be generated by PCR using BAC clone RP23-429M1 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:

Exon 1~2 covers 100.0% of the coding region. Start codon is in exon 1, and stop codon is in exon 2. The size of intron 2 for 3'-loxP site insertion: 818 bp. The size of effective cKO region: ~1180 bp. The cKO region does not have any other known gene.

Page 1 of 7 https://www.alphaknockout.com

Overview of the Targeting Strategy

gRNA region

Wildtype allele A T

5' G gRNA region 3'

1 2 3

Targeting vector A T G

Targeted allele A T G

Constitutive KO allele (After Cre recombination)

Legends Homology arm Exon of mouse Cox7c cKO region loxP site

Page 2 of 7 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(7420bp) | A(32.01% 2375) | C(18.26% 1355) | T(29.87% 2216) | G(19.87% 1474)

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 7 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% chr13 - 86046676 86049675 3000 browser details YourSeq 273 1145 3000 3000 96.0% chr14 + 37970774 38380546 409773 browser details YourSeq 166 1139 1392 3000 94.6% chr15 - 67551137 67551431 295 browser details YourSeq 157 1139 1313 3000 93.7% chr9 + 26983121 26983294 174 browser details YourSeq 153 1139 1308 3000 95.3% chr8 - 55730627 55730981 355 browser details YourSeq 153 1139 1306 3000 97.0% chr3 - 35702715 35702884 170 browser details YourSeq 150 1139 1306 3000 92.7% chr4 - 136526768 136526931 164 browser details YourSeq 150 1139 1306 3000 95.2% chr5 + 129113114 129113294 181 browser details YourSeq 150 1139 1311 3000 92.1% chr4 + 8321258 8321426 169 browser details YourSeq 149 1139 1312 3000 92.9% chr14 - 8985829 8986001 173 browser details YourSeq 148 1144 1306 3000 93.8% chrX - 73057334 73057494 161 browser details YourSeq 148 1139 1311 3000 95.2% chr8 - 27663498 27663682 185 browser details YourSeq 148 1139 1306 3000 91.5% chr6 - 16609225 16609388 164 browser details YourSeq 148 1139 1306 3000 95.8% chr5 - 44418404 44418587 184 browser details YourSeq 147 1139 1305 3000 94.1% chr6 - 73557720 73557886 167 browser details YourSeq 147 1143 1306 3000 92.4% chr3 - 50399375 50399532 158 browser details YourSeq 147 1139 1312 3000 89.9% chr1 - 166655969 166656136 168 browser details YourSeq 147 1139 1295 3000 95.6% chr10 + 10704241 10704396 156 browser details YourSeq 146 1139 1295 3000 95.5% chrX - 95511202 95511356 155 browser details YourSeq 146 1139 1296 3000 96.8% chr2 - 146700707 146701149 443

Note: The 3000 bp section upstream of Exon 1 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% chr13 - 86042506 86045505 3000 browser details YourSeq 94 595 688 3000 100.0% chr11 - 75599646 75599739 94 browser details YourSeq 94 595 688 3000 100.0% chr17 + 25902077 25902170 94 browser details YourSeq 91 595 688 3000 99.0% chr14 + 38380762 38380856 95 browser details YourSeq 88 595 690 3000 95.9% chr4 + 33201977 33202072 96 browser details YourSeq 86 595 688 3000 94.6% chr10 - 96408731 96408823 93 browser details YourSeq 81 595 683 3000 93.2% chr12 - 51840306 51840393 88 browser details YourSeq 78 595 682 3000 90.2% chr2 - 50521578 50521658 81 browser details YourSeq 78 595 682 3000 92.9% chr12 - 102797359 102797444 86 browser details YourSeq 57 612 682 3000 84.4% chr9 + 15312033 15312096 64 browser details YourSeq 30 207 253 3000 90.7% chr11 - 54190201 54190246 46 browser details YourSeq 25 1047 1081 3000 88.9% chr18 - 81638375 81638408 34

Note: The 3000 bp section downstream of Exon 2 is BLAT searched against the genome. No significant similarity is found.

Page 4 of 7 https://www.alphaknockout.com

Gene and protein information: Cox7c subunit 7C [ Mus musculus (house mouse) ] Gene ID: 12867, updated on 12-Aug-2019

Gene summary

Official Symbol Cox7c provided by MGI Official Full Name cytochrome c oxidase subunit 7C provided by MGI Primary source MGI:MGI:103226 See related Ensembl:ENSMUSG00000017778 Gene type protein coding RefSeq status VALIDATED Organism Mus musculus Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus Also known as Cox7c1; COXVIIc Expression Ubiquitous expression in heart adult (RPKM 584.6), kidney adult (RPKM 436.4) and 28 other tissues See more Orthologs human all

Genomic context

Location: 13; 13 C3 See Cox7c in Genome Data Viewer

Exon count: 3

Annotation release Status Assembly Chr Location

108 current GRCm38.p6 (GCF_000001635.26) 13 NC_000079.6 (86044798..86046795, complement)

Build 37.2 previous assembly MGSCv37 (GCF_000001635.18) 13 NC_000079.5 (86184403..86186400, complement)

Chromosome 13 - NC_000079.6

Page 5 of 7 https://www.alphaknockout.com

Transcript information: This gene has 4 transcripts

Gene: Cox7c ENSMUSG00000017778

Description cytochrome c oxidase subunit 7C [Source:MGI Symbol;Acc:MGI:103226] Gene Synonyms COXVIIc, Cox7c1 Location Chromosome 13: 86,044,816-86,046,904 reverse strand. GRCm38:CM001006.2 About this gene This gene has 4 transcripts (splice variants), 305 orthologues, is a member of 1 Ensembl protein family and is associated with 19 phenotypes. Transcripts

Name Transcript ID bp Protein Translation ID Biotype CCDS UniProt Flags

Cox7c-203 ENSMUST00000131011.1 540 63aa ENSMUSP00000115419.1 Protein coding CCDS26668 P17665 TSL:1 GENCODE basic APPRIS P1

Cox7c-204 ENSMUST00000132233.1 709 49aa ENSMUSP00000117385.1 Protein coding - B8JJA9 TSL:2 GENCODE basic

Cox7c-202 ENSMUST00000078764.8 433 24aa ENSMUSP00000119276.1 Protein coding - B8JJB0 TSL:2 GENCODE basic

Cox7c-201 ENSMUST00000017922.8 315 No protein - lncRNA - - TSL:2

22.09 kb Forward strand 86.035Mb 86.040Mb 86.045Mb 86.050Mb 86.055Mb Contigs < CT009759.12 Genes (Comprehensive set... < Cox7c-203protein coding

< Cox7c-202protein coding

< Cox7c-204protein coding

< Cox7c-201lncRNA

< Gm22574-201TEC

Regulatory Build

86.035Mb 86.040Mb 86.045Mb 86.050Mb 86.055Mb Reverse strand 22.09 kb

Regulation Legend CTCF Promoter Promoter Flank

Gene Legend Protein Coding

Ensembl protein coding merged Ensembl/Havana

Non-Protein Coding

RNA gene

Page 6 of 7 https://www.alphaknockout.com

Transcript: ENSMUST00000131011

< Cox7c-203protein coding

Reverse strand 2.09 kb

ENSMUSP00000115... Transmembrane heli... Superfamily Cytochrome c oxidase subunit VIIc superfamily

Pfam Cytochrome c oxidase subunit VIIc

PANTHER Cytochrome c oxidase subunit VIIc

PTHR13313:SF1 Gene3D Cytochrome c oxidase subunit VIIc superfamily

CDD Cytochrome c oxidase subunit VIIc

All sequence SNPs/i... Sequence variants (dbSNP and all other sources) S Y

Variant Legend

missense variant synonymous variant

Scale bar 0 6 12 18 24 30 36 42 48 54 63

We wish to acknowledge the following valuable scientific information resources: Ensembl, MGI, NCBI, UCSC.

Page 7 of 7