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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P07315: Variant p.Thr5Pro

Gamma-crystallin C
Gene: CRYGC
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Variant information Variant position: help 5 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 Threonine (T) to Proline (P) at position 5 (T5P, p.Thr5Pro). 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 polar (T) to medium size and hydrophobic (P) 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 CTRCT2; reduces protein-protein interactions in vivo. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 5 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 174 The length of the canonical sequence.
Location on the sequence: help MGKI T FYEDRAFQGRSYETTTDCPN 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                         MGKITFYEDRAFQGRSYETTTDCPN

                              MGKITFYEDRGFQGRHYECSSDCPN

Rhesus macaque                MGKITLYEDKAFQGRSYESTTDCPN

Mouse                         MGKITFFEDRSFQGRCYECSSDCPN

Rat                           MGKITFYEDRGFQGRCYECSSDCPN

Bovine                        MGKITFYEDRGFQGRCYQCSSDCPN
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
Initiator methionine 1 – 1 Removed
Chain 2 – 174 Gamma-crystallin C
Domain 2 – 40 Beta/gamma crystallin 'Greek key' 1
Modified residue 23 – 23 S-methylcysteine
Beta strand 4 – 9



Literature citations
The gamma-crystallins and human cataracts: a puzzle made clearer.
Heon E.; Priston M.; Schorderet D.F.; Billingsley G.D.; Girard P.O.; Lubsen N.; Munier F.L.;
Am. J. Hum. Genet. 65:1261-1267(1999)
Cited for: VARIANT CTRCT2 PRO-5; Alteration of protein-protein interactions of congenital cataract crystallin mutants.
Fu L.; Liang J.J.-N.;
Invest. Ophthalmol. Vis. Sci. 44:1155-1159(2003)
Cited for: CHARACTERIZATION OF VARIANT CTRCT2 PRO-5; The genetic landscape of crystallins in congenital cataract.
Berry V.; Ionides A.; Pontikos N.; Georgiou M.; Yu J.; Ocaka L.A.; Moore A.T.; Quinlan R.A.; Michaelides M.;
Orphanet J. Rare Dis. 15:333-333(2020)
Cited for: VARIANT CTRCT2 PRO-5;
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.