UniProtKB/SwissProt variant VAR

Variant information

Variant position:

155

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:

US

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 Valine (V) to Glycine (G) at position 155 (V155G, p.Val155Gly).

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 hydrophobic (V) to glycine (G)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

-3

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

Variant description:

In CMT2W; unknown pathological significance; fails to complement deletion of the yeast ortholog; decreases histidine-tRNA ligase activity; increases in the KM for ATP binding; does not disrupt dimerization.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs1239341211 [ dbSNP | Ensembl ]

Sequence information

Variant position:

155

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:

509

The length of the canonical sequence.

Location on the sequence:

FARYLAMNKLTNIKRYHIAK V YRRDNPAMTRGRYREFYQCD

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.

Residue conservation:

The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         FARYLAMNKLTNIKRYHIAKVYRRDNPAMTRGRYREFYQCD

Mouse                         FARYLAMNKLTNIKRYHIAKVYRRDNPAMTRGRYREFYQCD

Bovine                        FARYLAMNKLTNIKRYHIAKVYRRDNPAMTRGRYREFYQCD

Zebrafish                     FARYLAMNKITNIKRYHIAKVYRRDNPAMTRGRYREFYQCD

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 – 509	Histidine--tRNA ligase, cytoplasmic
Binding site	157 – 157	L-histidine
Binding site	173 – 173	L-histidine
Alternative sequence	155 – 174	Missing. In isoform 3 and isoform 4.
Beta strand	147 – 156

Literature citations

Substrate interaction defects in histidyl-tRNA synthetase linked to dominant axonal peripheral neuropathy.
Abbott J.A.; Meyer-Schuman R.; Lupo V.; Feely S.; Mademan I.; Oprescu S.N.; Griffin L.B.; Alberti M.A.; Casasnovas C.; Aharoni S.; Basel-Vanagaite L.; Zuechner S.; De Jonghe P.; Baets J.; Shy M.E.; Espinos C.; Demeler B.; Antonellis A.; Francklyn C.;
Hum. Mutat. 39:415-432(2018)
Cited for: VARIANTS CMT2W GLY-155; CYS-330 AND ASN-356; CHARACTERIZATION OF VARIANTS CMT2W GLY-155; CYS-330 AND ASN-356; CATALYTIC ACTIVITY; FUNCTION; BIOPHYSICOCHEMICAL PROPERTIES; SUBUNIT;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P12081: Variant p.Val155Gly