CN109652559A - A kind of mankind RhD blood group gene parting detection primer group and application - Google Patents
A kind of mankind RhD blood group gene parting detection primer group and application Download PDFInfo
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Abstract
The invention discloses a kind of mankind RhD blood group gene parting detection primer groups, including primer 16 shown in SEQ ID No.1-32 is to primer;The present invention is based on polymerase chain reaction (fluorescent PCR) reaction principle, first base and allele-specific base complementrity of the end primer 3', specific primer is to only expanding matched allele;Human genome sequencing disclosed in the blood group antigens gene mutation database (dbRBC) in DNA sequence data library (Genbank) that design of primers is established according to National Center for Biotechnology Information (NCBI), selects suitable specific mutations point design primer;PCR, which mixes dye method, indicates the effect of DNA cloning by mixing the amplified production of DNA with fluorescent dye.Melting curve analysis is carried out after amplification.It whether can confirm that purpose product by specific amplification by melting curve analysis, allele judged with this.
Description
Technical field
The present invention relates to gene diagnosis product technique field, specially a kind of mankind RhD blood group gene parting detection primer
Group and application.
Background technique
Rh blood group is the most complicated in human erythrocyte's blood group system, the most system of polymorphism, and is caused clinical defeated
The main erythrocyte blood type of blood reaction and serious neonatal hemolytic disease.Have now been found that more than 50 kinds of Rh blood group antigens, wherein RhD is anti-
Original has very strong immunogenicity, is to be encoded to generate by RhD gene, is the emphasis of blood group research.The common parting of Chinese
There are the detection of the allele of Weak RhD 15 and DEL RhD1227A and RhD exons 1-7,9-10 and RhC, Rhc, RhE,
Rhe tetra- common Rh blood group antigens gene pleiomorphisms, but lack in the prior art to the detection of mankind's RhD blood group gene parting
The assay kit of comprehensive globality.
Summary of the invention
The technical problem to be solved by the present invention is to overcome lack in the prior art to the detection of mankind's RhD blood group gene parting
The defect of the assay kit of comprehensive globality provides a kind of mankind RhD blood group gene parting detection primer group and application.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of mankind RhD blood group gene parting detection primer group, which is characterized in that including contained by SEQ ID No.1-30
15 pairs of primers.
Above-mentioned primer pair can be applied in the product of preparation detection mankind RhD blood group gene parting detection.
A kind of kit of detection mankind RhD blood group gene parting detection, including the SEQ ID described in claim 1
Primer, dNTP-Buffer, cresol red sodium salt and the SYBR Green I of No.1-30 sequence.
Further, the detection of every person-portion includes 15 detection holes, removes in every hole and places a pair of alleles primer pair, also
Including internal reference Quality Control primer, sequence is as shown in SEQ ID No.31 and SEQ ID No.32.
Mentioned reagent box is used for qualitative detection human erythrocyte blood group antigens Genotyping.Include:
D-Exon1、D-Exon2、D-Exon3、D-Exon4、D-Exon5、D-Exon6、 D-Exon7、D-Exon9、D-
Exon10, weakD15, Del1227, RhC, Rhc, RhE and Rhe;
Wherein, detect blood group D-Exon1 allele primer pair E1ZH and E1F, sequence be respectively SEQ ID No.1 and
Shown in 2;Allele the primer pair E2ZH and E2F of blood group D-Exon2 are detected, sequence is respectively shown in SEQ ID No.3 and 4;
Allele the primer pair E3ZH and E3F of blood group D-Exon3 are detected, sequence is respectively shown in SEQ ID No.5 and 6;Detect blood
Allele the primer pair D-Exon4 and E4F of type D-Exon4, sequence is respectively shown in SEQ ID No.7 and 8;Detect blood group D-
Allele the primer pair E5ZH and E5F of Exon5, sequence is respectively shown in SEQ ID No.9 and 10;Detect blood group D-Exon6
Allele primer pair E6ZH and E6F, sequence is respectively shown in SEQ ID No.11 and 12;Detection blood group D-Exon7 etc.
For position gene primer to E7ZH and E7F, sequence is respectively shown in SEQ ID No.13 and 14;Detect the equipotential base of blood group D-Exon9
Because of primer pair E9ZH and E9F, sequence is respectively shown in SEQ ID No.15 and 16;The allele of detection blood group D-Exon10 draws
For object to E10ZH and E10F, sequence is respectively shown in SEQ ID No.17 and 18;
Detect blood group weakD15 allele primer pair 845ZH and 845F, sequence be respectively SEQ ID No.19 and
Shown in 20;
Detect blood group Del1227 allele primer pair 1227ZH and 1227F, sequence be respectively SEQ ID No.21 and
Shown in 22;
Allele the primer pair RhCF and RhCR of blood group RhC are detected, sequence is respectively shown in SEQ ID No.23 and 24;
Allele the primer pair RhcF and RhcR of blood group Rhc are detected, sequence is respectively shown in SEQ ID No.25 and 26;
Allele primer pair RhEF and the RhER sequence for detecting blood group RhE is respectively shown in SEQ ID No.27 and 28;
Allele the primer pair RheF and RheR of blood group Rhe are detected, sequence is respectively shown in SEQ ID No.29 and 30.
This method be based on polymerase chain reaction (fluorescent PCR) reaction principle, first base of the end primer 3' with etc.
Position gene specific base complementrity, specific primer is to only expanding matched allele;Design of primers is according to the U.S.
The blood group antigens gene mutation number in DNA sequence data library (Genbank) that National Biotechnology Information Center (NCBI) is established
According to human genome sequencing disclosed in library (dbRBC), suitable specific mutations point design primer is selected;PCR mix dye method with
Fluorescent dye indicates the effect of DNA cloning by mixing the amplified production of DNA.Melting curve analysis is carried out after amplification.It is logical
Whether cross melting curve analysis can confirm that purpose product by specific amplification, judge allele with this.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Positive findings example when Fig. 1 is kit of the present invention detection;
Negative findings example when Fig. 2 is kit of the present invention detection;
Null result example when Fig. 3 is kit of the present invention detection.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment
A kind of kit detecting mankind RhD blood group gene parting, primer including SEQ ID No.1-30 sequence,
DNTP-Buffer, cresol red sodium salt and SYBR Green I.The detection of every person-portion includes 15 detection holes, removes in every hole and places one
It further include internal reference Quality Control primer, sequence is as shown in SEQ ID No.31 and SEQ ID No.32 to equipotential gene primer pair.
Condition of storage and validity period
All components of kit are saved at -18 DEG C or less, and validity period is 6 months.
Sample requirement:
1. sample needed for kit is whole blood, whole blood DNA extraction need to be carried out, and need to measure its DNA sample concentration.
2. extract DNA in whole blood, the whole blood sample of unusable anticoagulant heparin, it is recommended to use EDTA anti-coagulants.
3.DNA concentration of specimens should meet 40~70ng/ μ l, and purity A260/A280 value is 1.6~2.0.
4. -18 DEG C of DNA sample suggestion of extraction or less storage is completed not exceed 1 year.
The method of inspection
1, PCR working solution is prepared and (is carried out in preparation of reagents area)
It generally according to following table proportional arrangement 1ml, then is dispensed, is stored, DNA is added before use.
Oscillation mixes the several seconds, and 800rpm is centrifuged the several seconds.Other person-portions are prepared according to the above ratio.
2, sample-adding (being carried out in sample process area)
1, PCR working solution 160ul is taken to mix with sample DNA 16ul (concentration: 40~70ng/ul), whirlpool mixes work
Liquid-DNA mixed liquor 800rpm brief centrifugation 5~10 seconds, gathers tube wall residual liquid in tube bottom.
2, reacting hole (every 15 hole of person-portion) needed for shearing, every hole sample-adding 10ul state mixed liquor.
3, sealer or every hole are separately added into 15~20 μ l paraffin oils again, it is proposed that 96 orifice-plate types are centrifuged 7500rpm 1 minute.
3, PCR amplification (carries out) (real-time fluorescence quantitative PCR instrument wins day FQD-96A) in amplification region
Procedure selection SYBER GREEN I (is free of ROX)
Reaction volume setting: 10 μ L
Program setting: amplification curve acquisition
Program setting: 96 DEG C of 3min 1 circulations;96 DEG C recycle for 20 seconds, 68 DEG C 1min5;96 DEG C 20 seconds, 66 DEG C 50 seconds,
72 DEG C of 45 seconds 10 circulations;96 DEG C 20 seconds, 63 DEG C 50 seconds, 72 DEG C 45 seconds 15 circulation;72 DEG C of 2min 1 circulations.
Melting curve acquisition: 0.4 DEG C of heating per second, 1 fluorescent value of every 0.5 DEG C of acquisition, 60-95 DEG C of temperature collection range.
Quality control
There are melting peakss in corresponding temperature section in internal control primer, Quality Control means of the internal reference melting peakss as Successful amplification,
Negative hole should be always visible;The internal reference melting peakss in positive hole may be very weak or be not present, this is because specific primer
The result of the reaction raw materials such as Taq enzyme is competed in amplification procedure with internal control primer.
The analysis of inspection result
Initial data is opened with real-time fluorescence quantitative PCR genuine software, is found out using positive, negative Tm judgment value range
Positive hole.
Hole location, Genotyping, internal reference Tm and the positive Tm table of comparisons
Male/female judgment value
1. positive: when using intellectual analysis software, when there is the Tm of positive cutoff value (may have feminine gender simultaneously in the hole
Judgment value), then it is determined as the positive.When taking manual analysis, when there is the Tm of positive cutoff value range (may have simultaneously in the hole
Negative judgment value), and wave crest fluorescence derivative value be not less than 50 when, be determined as the positive.
2. negative: when there is the Tm of negative judgment value (internal reference) to be determined as when wave crest fluorescence derivative value is not less than 50 in the hole
It is negative.
In Fig. 1, dotted line table internal reference melting peakss, solid line table positive melting peakss;Positive findings: must be in corresponding positive temperature
There are melting peakss in section and peak is higher than derivative fluorescent value (Y axis) 50 with top for the positive.
In positive melting peakss have higher derivative fluorescent value that internal reference melting peakss may be made even to disappear lower than 50, are still considered as
Ginseng is effective, result is the positive
Dotted line table internal reference melting peakss in Fig. 2;Negative findings: internal reference melting peakss must melt in corresponding temperature section
Peak, peak are higher than 60 or more and 82 DEG C of derivative fluorescent value (Y-axis) or more section and derivative fluorescent value (Y-axis) do not occur higher than 50
Complete photoluminescence peak side be feminine gender.
The position Fig. 3 null result;There are not obvious melting peakss in the positive temperature range of specific interior participation.
Such situation need to re-operate experiment, Confirmation reagent state and DNA concentration quality and maintain and require section.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Sequence table
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Claims (4)
1. a kind of mankind RhD blood group gene parting detection primer group, which is characterized in that including 15 contained by SEQ ID No.1-30
To primer.
2. application of the primer pair described in claim 1 in the product of preparation detection mankind RhD blood group gene parting detection.
3. a kind of kit of detection mankind RhD blood group gene parting detection, which is characterized in that including described in claim 1
Primer, dNTP-Buffer, cresol red sodium salt and the SYBR Green of SEQ ID No.1-30 sequence.Ⅰ
4. kit as claimed in claim 3, which is characterized in that the detection of every person-portion includes 15 detection holes, is removed in every hole
A pair of alleles primer pair is placed, further includes internal reference Quality Control primer, sequence such as SEQ ID No.31 and SEQ ID No.32
It is shown.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111154766A (en) * | 2020-01-16 | 2020-05-15 | 安徽省第二人民医院(安徽医学高等专科学校附属医院、安徽省职业病防治院) | RHD-S68R mutant and detection method thereof |
CN111218453A (en) * | 2020-03-10 | 2020-06-02 | 无锡市第五人民医院 | RhD blood type antigen RHD-G353A mutant and detection |
CN111363794A (en) * | 2020-04-20 | 2020-07-03 | 江苏省血液中心 | Detection primer group for red blood cell RHD c.1227G > A genotyping and analysis method |
CN116042854A (en) * | 2022-12-27 | 2023-05-02 | 江苏中济万泰生物医药有限公司 | Diego blood group genotyping primer set, kit and detection method thereof |
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CN111154766B (en) * | 2020-01-16 | 2023-04-25 | 安徽省第二人民医院(安徽医学高等专科学校附属医院、安徽省职业病防治院) | RHD-S68R mutant and detection method thereof |
CN111218453A (en) * | 2020-03-10 | 2020-06-02 | 无锡市第五人民医院 | RhD blood type antigen RHD-G353A mutant and detection |
CN111218453B (en) * | 2020-03-10 | 2020-12-18 | 无锡市第五人民医院 | RhD blood type antigen RHD-G353A mutant and detection |
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