HPRTB

X-Chromosome STRs

HPRTB is a tetranucleotide short tandem repeat (STR) locus on chromosome X (Xq26.2), an X-chromosome STR (X-STR).

Basic Information

Chromosome

Cytogenetic Location

Xq26.2

STRNaming template (FSSG)

TCTA[n]

Type

Tetranucleotide

Reference Allele

Explore internal sequence structure

See how the STRNaming name of the reference allele maps onto its sequence: repeat blocks, flanking regions and flanking variants.

Genomic Coordinates

Repeat region

chrX:134,481,509-134,481,560 (52 bp)

Repeat region

chrX:133,615,539-133,615,590 (52 bp)

Motif and sequences are shown on the forward (+) strand of GRCh38.

Sequence structure (FSSG)

ISFG minimum range, bracketing and kit coverage from the Forensic Sequence Structure Guide, FSSG v6.1 (STRidER; distributed as FSSG_v6-1_beta.xlsx).

STRNaming Formatted ISFG Minimum Range for Common Alleles (FSSG)

TCTA[n]

Reference allele (GRCh38) named with STRNaming 1.2.1

CE13_TCTA[14]

Historical bracketing (2016-2023)

[ATCT]13

ISFG minimum range (GRCh38)

chrX:134,481,488-134,481,565 (78 bp)

MPS kits covering this locus

Notes from the FSSG

Locus included ForenSeq Signature Prep only, not MainstAY. Originally characterized on the reverse strand.

Related markers

Other X-STRs