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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q8NAT1: Variant p.Met165Thr

Protein O-linked-mannose beta-1,4-N-acetylglucosaminyltransferase 2
Gene: POMGNT2
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Variant information Variant position: help 165 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] 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: help From Methionine (M) to Threonine (T) at position 165 (M165T, p.Met165Thr). 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: help Change from medium size and hydrophobic (M) to medium size and polar (T) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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
Variant description: help In MDDGC8; no effect on protein expression; unchanged localization to the endoplasmic reticulum; decreased protein O-GlcNAc transferase catalytic activity. Any additional useful information about the variant.


Sequence information Variant position: help 165 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 580 The length of the canonical sequence.
Location on the sequence: help KPVFVPDVALIANRFNPDNL M HVFHDDLLPLFYTLRQFPGL 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences. 
Human                         KPVFVPDVALIANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

                              KPVFVPDVALVANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

Chimpanzee                    KPVFVPDVALIANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

Mouse                         KPVFVPDVALIANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

Rat                           KPVFVPDVALIANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

Bovine                        KPVFVPDVALIANRFNPDNLMHVFHDDLLPLFYTLRQFPGL

Chicken                       KPVFVPDVALIANRFNPDNLMHVFHDDLLPIYYTMQQFTDL

Xenopus laevis                KPVFVPDVALIMNRFNPDNLMHVFHDDLLPIFYTIQQFPDL

Xenopus tropicalis            KPVFVPDVALIMNRFNPDNLMHVFHDDLIPIFYTIQQFADL

Zebrafish                     KPVFVPDVTLILNRFNPDNLMHIFHDDLLPVYYTMQQYSDL
Sequence annotation in neighborhood: help 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.
TypePositionsDescription
Chain 1 – 580 Protein O-linked-mannose beta-1,4-N-acetylglucosaminyltransferase 2
Topological domain 26 – 580 Lumenal
Helix 164 – 170



Literature citations
Milder forms of muscular dystrophy associated with POMGNT2 mutations.
Endo Y.; Dong M.; Noguchi S.; Ogawa M.; Hayashi Y.K.; Kuru S.; Sugiyama K.; Nagai S.; Ozasa S.; Nonaka I.; Nishino I.;
Neurol. Genet. 1:E33-E33(2015)
Cited for: FUNCTION; CATALYTIC ACTIVITY; SUBCELLULAR LOCATION; INVOLVEMENT IN MDDGC8; VARIANTS MDDGC8 THR-165 AND LEU-253; CHARACTERIZATION OF VARIANTS MDDGC8 THR-165 AND LEU-253;
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.