GB/T 41009-2021Forensic sciences—Data structures of selected loci from the DNA database (English PDF)
法庭科学 DNA数据库选用的基因座及其数据结构
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2021
Implementation date
January 1, 2023
Scope
GB/T 41009-2021 is the English-translated version of 法庭科学 DNA数据库选用的基因座及其数据结构.
GB/T 41009-2021 defines which genetic loci are recorded in the national forensic science DNA database of China and how their data are structured.
It presents the types of human chromosomal genetic markers and the short tandem repeat (STR) loci selected for building forensic DNA databases, and specifies the file format, data structure and rules for exchanging data between the national database and external systems.
It defines terms such as locus, allele, short tandem repeat and repeat region sequence, and refers to GB/T 2312 and GB 18030 for Chinese character encoding.
It is meant for those who build forensic DNA databases and for the designers, developers and testers of connected systems such as DNA laboratory management information systems and DNA data analysis software. It was issued on 31 December 2021 and has applied since 1 January 2023.
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Document preview — GB/T 41009-2021
National Standard of the People's Republic of China
- ICS
- 13.310
- Classification
- A 92
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1. Structure and Drafting Rules of Standardization Documents" drafted.
1 Scope
This document presents the types of human chromosomal genetic markers and the short tandem repeats selected for the establishment of forensic DNA databases.
Complex sequence locus; specifies the file format, data structure and basis for data exchange between the National Forensic Science DNA Database and external systems this requirement.
This document is applicable to the construction of forensic science DNA database and the external system for data exchange with forensic science DNA database (such as DNA laboratory management information system, DNA data analysis software, etc.) design, development and testing.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 2312 Basic Set of Chinese Characters Coded Character Set for Information Interchange
GB 18030 Information Technology Chinese Coded Character Set
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Locus
The location occupied by a gene on a chromosome or a segment of genomic DNA. [Source: GB/T 37226-2018, 2.2]
3.2 Allele
Different forms of genes located at the same location on a pair of homologous chromosomes.
3.3 Short tandem repeat; STR
One class is widely present in eukaryotic genomes, and the repeat unit is usually composed of 2 to 6 bases, and the number of repeats is usually 5~60 DNA tandem repeats.
Note: In the human genome, according to the type of chromosome, it is divided into autosomal STR, Y chromosome STR and X chromosome STR.
3.4 Repeat region sequence
The part of the short tandem repeat (3.3) consisting of repeat units in tandem, generally from the 5' end of the first repeat unit to the last repeat unit. Sequence of the 3' end of the complex unit.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.
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Related Standards
GB 18030-2022 — Information technology - Chinese coded character set
GB/T 2312-1980 — Code of Chinese graphic character setfor information interchange--Primary set
GB/T 23120-2008 — The clay pigeon
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