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UniProtKB/Swiss-Prot Q99972: Variant p.Val329Met

Myocilin
Gene: MYOC
Variant information

Variant position:  329
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 Valine (V) to Methionine (M) at position 329 (V329M, p.Val329Met).
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

Variant description:  Slightly decreased protein stability.
Any additional useful information about the variant.

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



Sequence information

Variant position:  329
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  504
The length of the canonical sequence.

Location on the sequence:   QGYPSKVHILPRPLESTGAV  V YSGSLYFQGAESRTVIRYEL
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                         QGY-----------------------------------------------------------------PSKVHILPRPLESTGA------VVYSGSLYF---------------------------------------QGAESRTVIRYEL

                              QGY--------------------------------------

Mouse                         QGY--------------------------------------

Rat                           QGY--------------------------------------

Bovine                        QGY--------------------------------------

Rabbit                        QGY--------------------------------------

Cat                           QGY--------------------------------------

Slime mold                    QGYFRAWKQASPFFDLRMQNEQLFQGRKERNRFSMISVRKY

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
Chain 33 – 504 Myocilin
Chain 227 – 504 Myocilin, C-terminal fragment
Domain 244 – 503 Olfactomedin-like
Disulfide bond 245 – 433
Beta strand 328 – 330


Literature citations

Structural basis for misfolding in myocilin-associated glaucoma.
Donegan R.K.; Hill S.E.; Freeman D.M.; Nguyen E.; Orwig S.D.; Turnage K.C.; Lieberman R.L.;
Hum. Mol. Genet. 24:2111-2124(2015)
Cited for: X-RAY CRYSTALLOGRAPHY (1.90 ANGSTROMS) OF 228-504 IN COMPLEX WITH CALCIUM; DISULFIDE BONDS; CHARACTERIZATION OF VARIANTS GLC1A LYS-293; ILE-353 AND VAL-445; CHARACTERIZATION OF VARIANTS MET-329; CYS-422; PRO-425 AND CYS-473;

Age-dependent prevalence of mutations at the GLC1A locus in primary open-angle glaucoma.
Shimizu S.; Lichter P.R.; Johnson A.T.; Zhou Z.; Higashi M.; Gottfredsdottir M.; Othman M.; Moroi S.E.; Rozsa F.W.; Schertzer R.M.; Clarke M.S.; Schwartz A.L.; Downs C.A.; Vollrath D.; Richards J.E.;
Am. J. Ophthalmol. 130:165-177(2000)
Cited for: VARIANTS GLC1A ARG-252; GLY-272; LYS-323; LEU-370; MET-377; PHE-426; ASN-477 AND SER-499; VARIANTS ASP-57; LYS-76; MET-329 AND ARG-398; CHARACTERIZATION OF VARIANTS GLC1A ARG-252; GLY-272; LYS-323; LEU-370; MET-377; PHE-426; ASN-477 AND SER-499; CHARACTERIZATION OF VARIANTS ASP-57; LYS-76; MET-329 AND ARG-398;

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.