T6526C

# **General Information**

| **Position** | **6526** | **Variant** | **m.6526T\>C** | **Locus** | **MT\-CO1** | **Amino\-AcidChange** | **M208T** |
| --- | --- | --- | --- | --- | --- | --- | --- |
| **Homoplasmy** | nr | **Heteroplasmy** | nr | **APOGEE2** | VUS\+ | **Pathogenicity** | Reported \[VUS] |

"Pathogenicity" status is derived from published literature or predictions from bioinformatics tools. Researchers and clinicians are cautioned that additional data and/or analysis may still be necessary to confirm the pathological significance of these variants. For more information, please see [Mitofam Info](https://mitofam.com/doc/385/).

# **Pedigree Information**

The **m.6526T\>C** variant in MT\-CO1 has been reported in 1 pedigree. To date, 1 carrier has been reported. Reported mutation loads ranged from 86\.6%, with a median of 86\.6% overall; affected carriers showed mutation loads from 86\.6%, with a median of 86\.6%. The main clinical manifestations among affected carriers included developmental delay, failure to thrive, hypotonia, and myopathy.

| **No.** | **Position** | **Variant** | **Family ID** | **Nationality** | **Diseases** | **Unaffected Maternal Relatives** | **Affected Maternal Relatives** | **Publication Year** | **PMID/Ref** | **Note** |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 6526 | m.6526T\>C | T6526C\-F1 | USA | Developmental delay, hypotonia, myopathy, failure to thrive | ND | ND | 2020 | [32652755](https://pubmed.ncbi.nlm.nih.gov/32652755/) |  |

# **Carrier Information**

| **No.** | **Position** | **Variant** | **Family ID** | **Carrier ID** | **Type (Fam/De novo/Uninf)** | **Gender (F/M)** | **Proband (Y/N)** | **Affected (Y/N)** | **Die/Alive(D/A)** | **Age** | **Blood Mutant Level** | **Muscle Mutant level** | **Urine Mutant level** | **Other Mutant level** | **Clinical Features** | **Note** |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 6526 | m.6526T\>C | T6526C\-F1 | T6526C\-F1\-P1 | Uninf | F | Y | Y | A | 18 | / | 86\.6% | / | / | Developmental delay; hypotonia; myopathy; failure to thrive |  |

For abbreviations and other usage instructions, please see [Mitofam Info](https://mitofam.com/doc/385/).