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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P10636: Variant p.Ser669Leu

Microtubule-associated protein tau
Gene: MAPT
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Variant information Variant position: help 669 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Serine (S) to Leucine (L) at position 669 (S669L, p.Ser669Leu). 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 small size and polar (S) to medium size and hydrophobic (L) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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

Variant description: help In fatal respiratory hypoventilation; unusual apparent autosomal recessive inheritance; reduced binding to microtubules as well as increased fibrillization and aggregation. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 669 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 758 The length of the canonical sequence.
Location on the sequence: help PGGGQVEVKSEKLDFKDRVQ S KIGSLDNITHVPGGGNKKIE 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                         PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Gorilla                       PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Rhesus macaque                PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Chimpanzee                    PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Mouse                         PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Rat                           PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Bovine                        PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

Goat                          PGGGQVEVKSEKLDFKDRVQSKIGSLDNITHVPGGGNKKIE

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 2 – 758 Microtubule-associated protein tau
Repeat 654 – 685 Tau/MAP 4
Region 561 – 685 Microtubule-binding domain
Site 657 – 657 Not glycated
Site 660 – 660 Not glycated
Site 687 – 687 Not glycated
Modified residue 660 – 660 N6-acetyllysine; alternate
Modified residue 664 – 664 N6-acetyllysine; alternate
Modified residue 666 – 666 Omega-N-methylarginine
Modified residue 669 – 669 Phosphoserine; by PHK
Modified residue 673 – 673 Phosphoserine
Modified residue 686 – 686 N6-acetyllysine; alternate
Glycosylation 664 – 664 N-linked (Glc) (glycation) lysine; in PHF-tau; in vitro
Glycosylation 670 – 670 N-linked (Glc) (glycation) lysine; in PHF-tau; in vitro
Glycosylation 686 – 686 N-linked (Glc) (glycation) lysine; in PHF-tau; in vitro
Cross 660 – 660 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate
Cross 664 – 664 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate
Cross 670 – 670 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); in PHF-tau
Cross 686 – 686 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate
Beta strand 666 – 671



Literature citations
An English kindred with a novel recessive tauopathy and respiratory failure.
Nicholl D.J.; Greenstone M.A.; Clarke C.E.; Rizzu P.; Crooks D.; Crowe A.; Trojanowski J.Q.; Lee V.M.-Y.; Heutink P.;
Ann. Neurol. 54:682-686(2003)
Cited for: VARIANT FATAL RESPIRATORY HYPOVENTILATION LEU-669; CHARACTERIZATION OF VARIANT FATAL RESPIRATORY HYPOVENTILATION LEU-669;
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.