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Establishment and application of a reverse dot blot assay for 13 mutations of hearing-loss genes in primary hospitals in China


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Figure 1.

Schematic representation and results of hearing loss gene chip. (A) The schematic representation of the location of the probes dotted in the hearing loss gene chip used for the reverse dot blot assay. N represented the location of wild-type probes. M represented the location of mutant probes. (B) Part of the hybridization results of hearing loss gene chip, which included heterozygous, and homozygous gene mutations. (-) presented no probe at the corresponding position in the hybridization membrane.
Schematic representation and results of hearing loss gene chip. (A) The schematic representation of the location of the probes dotted in the hearing loss gene chip used for the reverse dot blot assay. N represented the location of wild-type probes. M represented the location of mutant probes. (B) Part of the hybridization results of hearing loss gene chip, which included heterozygous, and homozygous gene mutations. (-) presented no probe at the corresponding position in the hybridization membrane.

Figure 2.

Detection of deafness gene mutations in 213 volunteers.
Detection of deafness gene mutations in 213 volunteers.

The information on primers in the reaction system

Name Sequence (5′→3′)
GJB2-F (Biotin)-TAGTGATTCCTGTGTTGTGTG
GJB2-R TTCTGGGTTTTTGATCTCCTC
GJB3-F (Biotin)-CTCTTCCTCTACCTGCTGC
GJB3-R TATTGCCTGGGTCTGGAT
SLC26A4-F1 (Biotin)-TTCACTGCTGGATTGCTCA
SLC26A4-R1 GTGTTAACCGTACATGTTCTGC
SLC26A4-F2 (Biotin)-CTCTCAGATGGTATGGCGTC
SLC26A4-R2 TCCTTCATTACTGATTCCTTGTC
SLC26A4-F3 (Biotin)-GTTCTTTGACGACAACATTAG
SLC26A3-R3 AATGGAACCTTGACCCTCTT
mtDNA-F1 (Biotin)-ATGAGGTGGCAAGAAATG
mtDNA-R1 TTGGCTAAGGTTGTCTGGTA
mtDNA-F2 (Biotin)-GATGCATACACCACATGAAAC
mtDNA-R2 TGAGTGTTAGGAAAAGGGCA
mtDNA-F3 (Biotin)-CACAATGGGGCTCACTCA
mtDNA-R3 ACGAACAATGCTACAGGGAT

The information of probes in the hearing loss gene chip

Name Sequence (5′→3′)
1494-PN CGTCACCCTCCTCAAG
1494-PM CCGTCACTCTCCTCAAG
1555 PN AGAGGAGACAAGTCGTAAC
1555 PM GAGGAGGCAAGTCGTAA
7445 PN ACATAAAATCTAGA-CAAAAAAGGA
7445 PM CATAAAATCTAGGCAAAAAAGG
12201 PN GACCCCTTATTTACCGAGAA
12201 PM CCCCTTACTTACCGAGA
G2-35 PN GTTCACACCCCCCAGGA
G2-35 PM AATGGAACCTTGACCCTCTT
G2-155 PN GGTGTTGCAGACAAAGTCG
G2-155 PM CGACTTTGCAACACCC
G2-176 PN GCACACGTTCTTGCAGCC
G2-176 PM CAGCCAGCTACGATCAC
G2-235 PN AGCTGCAGGGCCCATA
G2-235 PM TATGGGCCTGCAGCT
G2-299 PN TTCTTCTCATGTCTCCGGT
G2-299 PM ACCGGAGACGAGAAGAA
G3-538 PN ACATTGCCCGACCTAC
G3-538 PM ACATTGCCTGACCTACC
IVS7-2 PN GTTTTATTTCAGACGATAATTGC
IVS7-2 PM TGTTTTATTTCGGACGATAAT
1229 PN CTGCTCTTTCCCGCACGG
1229 PM CTCTTTCCCGCATGGCC
2168 PN CGGTCCATGATGCTATA
2168 PM GTCCGTGATGCTATACT

The genotypes of nine individuals with hearing loss gene mutation

GJB2 n GJB3 n SLC26A4 n mtDNA n
c.35delG 0 c.538C>T 0 IVS7-2A>G 2 m.1494C>T 0
c.155_158del4 0 c.1229C>T 1 m.1555A>G 1
c.176_191del16 0 c.2168A>G 0 m.7445A>G 0
c.235delC 4 m.12201T>C 0
c.299_300delAT 1
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Inglés
Calendario de la edición:
6 veces al año
Temas de la revista:
Medicine, Assistive Professions, Nursing, Basic Medical Science, other, Clinical Medicine