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11
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Fig. S1. Analyses of IFT54 genomic sequences of the IFT54-KO cell line
(A) Genomic DNA extracted from the IFT54-KO cell line #IFT54-4-3 was subjected to PCR using primer sets
(a, b, and c; Table S3) to detect alleles with forward (b) or reverse (c) integration of the donor knock-in vector
or no insertion/small indel (a). (B) The amplified DNAs with no insertion/small indel (allele 1) and reverse
integration of the donor vector (allele 2) were subjected to sequence analysis. Note that for allele 2, as an
unrelated long sequence from human chromosome 1 (LOC126805873), in addition to the knock-in vector
sequence, was inserted, we could not determine the exact insertion site of the knock-in vector. However, as the
abnormal cilia-lacking phenotype of the cell line #IFT54-4-3 was rescued by exogenous expression of
IFT54(WT) (see Fig. 1D, E), the abnormal phenotype is not likely to result from an off-target effect. (C, D)
Control RPE1 cells (C) and the #IFT54-4-3 cell line (D) were cultured under serum-starved conditions for 24 h
boxed regions are shown on the right. Scale bars, 5 µm. The #IFT54-4-3 cell line could not form cilia, consistent
with the disruption of both IFT54 alleles.
Biology Open • Supplementary information
to induce ciliogenesis, and doubly immunostained for FOP and ARL13B. Enlarged (2.5-fold) images of the
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Fig. S2: Uncropped images
Fig. 2: mChe-IFT54
Biology Open • Supplementary information
Fig. 2: IFT88
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Fig. S2: Uncropped images
Fig. 2: IFT52
Biology Open • Supplementary information
Fig. 2: IFT81
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Fig. S2: Uncropped images
Fig. 2: IFT25
Fig. 2: GAPDH
Biology Open • Supplementary information
Fig. S1A
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Table S1. Plasmids used in this study
Vector
Insert *
Reference
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(1–532)
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(135–625)
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(335–625)
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(488–625)
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(507–625)
This study
pRRLsinPPT-mCherry-C-IRES-Blast
IFT54(533–625)
This study
pGEX-6P1
Anti-mCherry-Nanobody (LaM-2)
Ishida et al., 2021
Biology Open • Supplementary information
* All cDNA inserts except for that of anti-mCherry Nb are of human origin.
Biology Open (2023): doi:10.1242/bio.BIO059976: Supplementary information
Table S2. Antibodies used in this study
Clone/catalog number or reference
Antibody
Manufacturer
Polyclonal rabbit anti-IFT25
Proteintech
15732-1-AP
1:1,000 (IB)
Polyclonal rabbit anti-IFT52
Proteintech
17534-1-AP
1:1,000 (IB)
Polyclonal rabbit anti-IFT81
Proteintech
11744-1-AP
1:1,000 (IB)
Polyclonal rabbit anti-IFT88
Proteintech
13967-1-AP
1:500 (IF), 1:1,000 (IB)
Polyclonal rabbit anti-IFT140
Proteintech
17460-1-AP
1:500 (IF)
Polyclonal rabbit anti-GPR161
Proteintech
13398-1-AP
1:200 (IF)
Polyclonal rabbit anti-ARL13B
Proteintech
17711-1-AP
1:500 (IF)
Monoclonal mouse anti-ARL13B
Abcam
N295B/66
1:500 (IF)
Monoclonal mouse anti-FOP
Abnova
2B1
1:10,000 (IF)
Monoclonal mouse anti-Smoothened
Santa Cruz
sc-166685
1:100 (IF)
Monoclonal mouse anti-RFP
MBL
3G5
1:1,000 (IF)
Monoclonal mouse anti-GAPDH
Ambion
6C5
1:10,000 (IB)
Polyclonal rabbit anti-mCherry
Proteintech
26765-1-AP
1:10,000 (IB)
AlexaFluor-conjugated secondary
Molecular Probes
Peroxidase-conjugated secondary
Jackson
ImmunoResearch
number
A11034, A21127, A21131, A21147,
A21241, A21242, A21245
115-035-166, 111-035-144
Dilution (purpose)
1:1,000 (IF)
1:3,000 (IB)
Table S3. Oligodeoxyribonucleotides used in this study
Name
Sequence
IFT54-gRNA#4-S
5'-CACCGCAAGAGCGCACTTCCCCTG-3'
IFT54-gRNA#4-AS
5'-AAACCAGGGGAAGTGCGCTCTTGC-3'
IFT54-Genome-#4-FW
5'-GCAGTGCTGTGTCCTCTGAT-3'
IFT54-Genome-#4-RV
5'-TGCCACATCTGCAGCTCATT-3'
pTagBFP-N-RV2
5'-CGTAGAGGAAGCTAGTAGCCAGG-3'
S, sense; AS, antisense; FW, forward; RV, reverse
Biology Open • Supplementary information
IF, immunofluorescence; IB, immunoblotting
...