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UniProtKB/Swiss-Prot P02452: Variant p.Gly353Cys

Collagen alpha-1(I) chain
Gene: COL1A1
Variant information

Variant position:  353
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  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:  From Glycine (G) to Cysteine (C) at position 353 (G353C, p.Gly353Cys).
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 glycine (G) to medium size and polar (C)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
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:  In OI4.
Any additional useful information about the variant.

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



Sequence information

Variant position:  353
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1464
The length of the canonical sequence.

Location on the sequence:   PPGPTGPAGPPGFPGAVGAK  G EAGPQGPRGSEGPQGVRGEP
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                         PPGPTGPAGPPGFPGAVGAKGEAGPQGPRGSEGPQGVRGEP

                              PPGPTGPAGPPGFPGAVGAKGEAGPQGARGSEGPQGVRGEP

Mouse                         PPGPTGPTGPPGFPGAVGAKGEAGPQGARGSEGPQGVRGEP

Rat                           PPGPTGPTGPPGFPGAAGAKGEAGPQGARGSEGPQGVRGEP

Bovine                        PPGPTGPAGPPGFPGAVGAKGEGGPQGPRGSEGPQGVRGEP

Chicken                       PPGPTGPAGPPGFPGAAGAKGETGPQGARGSEGPQGSRGEP

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 162 – 1218 Collagen alpha-1(I) chain
Region 179 – 1192 Triple-helical region
Modified residue 334 – 334 4-hydroxyproline
Modified residue 343 – 343 4-hydroxyproline
Modified residue 346 – 346 4-hydroxyproline
Modified residue 373 – 373 4-hydroxyproline


Literature citations

A cysteine for glycine substitution at position 175 in an alpha 1 (I) chain of type I collagen produces a clinically heterogeneous form of osteogenesis imperfecta.
Wirtz M.K.; Rao V.H.; Glanville R.W.; Labhard M.E.; Pretorius P.J.; de Vries W.N.; de Wet W.; Hollister D.W.;
Connect. Tissue Res. 29:1-11(1993)
Cited for: VARIANT OI4 CYS-353;

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.