G6579A

# **General Information**

| **Position** | **6579** | **Variant** | **m.6579G\>A** | **Locus** | **MT\-CO1** | **Amino\-AcidChange** | **G226Term** |
| --- | --- | --- | --- | --- | --- | --- | --- |
| **Homoplasmy** | \- | **Heteroplasmy** | \+ | **APOGEE2** | NA | **Pathogenicity** | Reported |

"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.6579G\>A** variant in MT\-CO1 has been reported in 1 pedigree. To date, 1 carrier has been reported. Reported mutation loads ranged from 40% to 70%, with a median of 55% overall; affected carriers showed mutation loads from 40% to 70%, with a median of 55%. The main clinical manifestations among affected carriers included adult\-onset Leigh syndrome, brainstem signs, encephalopathy, extrapyramidal signs, and raised CSF lactate.

| **No.** | **Position** | **Variant** | **Family ID** | **Nationality** | **Diseases** | **Unaffected Maternal Relatives** | **Affected Maternal Relatives** | **Publication Year** | **PMID/Ref** | **Note** |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 6579 | m.6579G\>A | G6579A\-F1 | UK | Adult\-onset Leigh syndrome | 0 | 0 | 2019 | [30743023](https://pubmed.ncbi.nlm.nih.gov/30743023/) |  |

# **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 | 6579 | m.6579G\>A | G6579A\-F1 | G6579A\-F1\-P1 | De novo | F | Y | Y | A | 28 | 40% | 70% | / | / | Adult\-onset Leigh syndrome; encephalopathy; brainstem signs; extrapyramidal signs; raised CSF lactate |  |

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