UniProtKB/Swiss-Prot Q13686: Variant p.Met135Ile

Nucleic acid dioxygenase ALKBH1
Gene: ALKBH1
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Variant information Variant position:

135 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 Methionine (M) to Isoleucine (I) at position 135 (M135I, p.Met135Ile). 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:

Similar physico-chemical property. Both residues are medium size and hydrophobic. The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

1 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 rs17825440 [ dbSNP | Ensembl ]

Sequence information Variant position:

135 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

389 The length of the canonical sequence.
Location on the sequence:

VKQCLKLYSQKPNVCNLDKH M SKEETQDLWEQSKEFLRYKE 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                         VKQCLKLYSQKPNVCNLDKHMSKEETQDLWEQSKEFLRYKE

Mouse                         VKQCLKLYSQKPNVCNLDKHMTKEETQGLWEQSKEVLRSKE

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	1 – 389	Nucleic acid dioxygenase ALKBH1
Region	86 – 389	tRNA-binding
Binding site	144 – 144
Site	133 – 133	Primary catalytic residue forming the imine linkage with DNA
Site	133 – 133	Secondary catalytic residue forming the imine linkage with DNA
Mutagenesis	116 – 116	K -> A. Does not affect DNA lyase activity.
Mutagenesis	118 – 118	C -> A. Does not affect DNA lyase activity.
Mutagenesis	120 – 120	K -> A. Does not affect DNA lyase activity.
Mutagenesis	125 – 125	K -> A. Does not affect DNA lyase activity.
Mutagenesis	129 – 129	C -> A. Does not affect DNA lyase activity.
Mutagenesis	133 – 133	K -> A. Reduced DNA lyase activity. Slightly more reduced DNA lyase activity; when associated with A-25. Strongly reduced activity; when associated with A-154.
Mutagenesis	134 – 134	H -> A. Does not affect DNA lyase activity.
Mutagenesis	137 – 137	K -> A. Does not affect DNA lyase activity.
Mutagenesis	148 – 148	K -> A. Does not affect DNA lyase activity.
Mutagenesis	154 – 154	K -> A. Does not affect DNA lyase activity. Strongly reduced activity; when associated with A-133.

Literature citations
No reference for the current variant in UniProtKB/Swiss-Prot.

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.