UniProtKB/Swiss-Prot Q9Y6X9: Variant p.Glu757Gly

• Variant information
• Sequence information
• Literature citations
• All

Variant information

Variant position: 757 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: LB/B The variants are classified into three categories: LP/P, LB/B and US.

• LP/P: likely pathogenic or pathogenic.
• LB/B: likely benign or benign.
• US: uncertain significance

Residue change: From Glutamate (E) to Glycine (G) at position 757 (E757G, p.Glu757Gly). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: Change from medium size and acidic (E) to glycine (G) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: -2 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:

• Lowest score: -4 (low probability of substitution).
• Highest score: 11 (high probability of substitution).

More information can be found on the following page
Other resources: Links to websites of interest for the variant.

• Variant rs774444542 [ dbSNP | Ensembl ]

Sequence information

Variant position: 757 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 1032 The length of the canonical sequence.
Location on the sequence: KRSVAVSDEEEVEEEAERRK E RCKRGRFVVKEEKKDSNELS The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Sequence annotation in neighborhood: The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:

• Type: the type of sequence feature.
• Positions: endpoints of the sequence feature.
• Description: contains additional information about the feature.

Type	Positions	Description
Chain	2 – 1032	ATPase MORC2
Region	577 – 793	Disordered
Coiled coil	741 – 761
Compositional bias	739 – 793	Basic and acidic residues
Modified residue	739 – 739	Phosphoserine; by PAK1
Modified residue	743 – 743	Phosphoserine
Modified residue	777 – 777	Phosphoserine
Cross	767 – 767	Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)
Mutagenesis	739 – 739	S -> A. Abolishes phosphorylation by PAK1. Not recruited on damaged chromatin. Loss of ATPase activity. Prevents chromatin remodeling. Upon irradiation, increases levels of damaged DNA.
Mutagenesis	773 – 773	S -> A. No effect on phosphorylation by PAK1.

Literature citations

MORC2 mutations cause axonal Charcot-Marie-Tooth disease with pyramidal signs.
Albulym O.M.; Kennerson M.L.; Harms M.B.; Drew A.P.; Siddell A.H.; Auer-Grumbach M.; Pestronk A.; Connolly A.; Baloh R.H.; Zuchner S.; Reddel S.W.; Nicholson G.A.;
Ann. Neurol. 79:419-427(2016)
Cited for: VARIANTS CMT2Z GLU-96; GLY-236; TRP-252 AND ARG-444; VARIANTS CYS-248; HIS-283; HIS-466; CYS-585 AND GLY-757;