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UniProtKB/Swiss-Prot P45452: Variant p.Phe75Ser

Collagenase 3
Gene: MMP13
Variant information

Variant position:  75
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Phenylalanine (F) to Serine (S) at position 75 (F75S, p.Phe75Ser).
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 large size and aromatic (F) to small size and polar (S)
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

Involvement in disease:  Spondyloepimetaphyseal dysplasia Missouri type (SEMD-MO) [MIM:602111]: A bone disease characterized by moderate to severe metaphyseal changes, mild epiphyseal involvement, rhizomelic shortening of the lower limbs with bowing of the femora and/or tibiae, coxa vara, genu varum and pear-shaped vertebrae in childhood. Epimetaphyseal changes improve with age. {ECO:0000269|PubMed:16167086}. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In SEMD-MO; abnormal intracellular autoactivation and autodegradation within the ER/Golgi resulting in the secretion of small and inactive fragments.
Any additional useful information about the variant.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  75
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  471
The length of the canonical sequence.

Location on the sequence:   ILKENAASSMTERLREMQSF  F GLEVTGKLDDNTLDVMKKPR
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                         ILKENAASSMTERLREMQSFFGLEVTGKLDDNTLDVMKKPR

Mouse                         ILKKSTVTSTVDRLREMQSFFGLEVTGKLDDPTLDIMRKPR

Bovine                        ILKKTAASSVIDRLREMQSFFGLEVTGRLDDNTLDIMKKPR

Rabbit                        ILKKNAAGSMVDRLREMQSFFGLEVTGKLDDNTLAIMKQPR

Horse                         ILKKTAANSVVDRLREMQSFFGLEVTGKLDDNTLDIMKKPR

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.

TypePositionsDescription
Propeptide 20 – 103 Activation peptide


Literature citations

MMP13 mutation causes spondyloepimetaphyseal dysplasia, Missouri type (SEMD(MO).
Kennedy A.M.; Inada M.; Krane S.M.; Christie P.T.; Harding B.; Lopez-Otin C.; Sanchez L.M.; Pannett A.A.J.; Dearlove A.; Hartley C.; Byrne M.H.; Reed A.A.C.; Nesbit M.A.; Whyte M.P.; Thakker R.V.;
J. Clin. Invest. 115:2832-2842(2005)
Cited for: VARIANT SEMD-MO SER-75; CHARACTERIZATION OF VARIANT SEMD-MO SER-75; FUNCTION IN BONE DEVELOPMENT;

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.