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UniProtKB/Swiss-Prot Q9H3S1: Variant p.Arg713Gln

Semaphorin-4A
Gene: SEMA4A
Variant information

Variant position:  713
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 Arginine (R) to Glutamine (Q) at position 713 (R713Q, p.Arg713Gln).
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 basic (R) to medium size and polar (Q)
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:  Originally reported as mutation causing retinitis pigmentosa; no effect on localization to cell membrane.
Any additional useful information about the variant.

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



Sequence information

Variant position:  713
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  761
The length of the canonical sequence.

Location on the sequence:   LVLSGALIILVASPLRALRA  R GKVQGCETLRPGEKAPLSRE
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                         LVLSGALIILVASPLRALRARGKVQGCETLRPGEKAPLSRE

Mouse                         IVLLGVLTLLLASPLGALRARGKVQGCGMLPPREKAPLSRD

Bovine                        LVLSGALVTFLVSPLGALRARGKVQGCGTLPSREKAPLSSE

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 – 761 Semaphorin-4A
Topological domain 705 – 761 Cytoplasmic


Literature citations

SEMA4A mutations lead to susceptibility to light irradiation, oxidative stress, and ER stress in retinal pigment epithelial cells.
Tsuruma K.; Nishimura Y.; Kishi S.; Shimazawa M.; Tanaka T.; Hara H.;
Invest. Ophthalmol. Vis. Sci. 53:6729-6737(2012)
Cited for: SUBCELLULAR LOCATION; CHARACTERIZATION OF VARIANT GLN-713; CHARACTERIZATION OF VARIANTS RP35 HIS-345 AND CYS-350;

Identification of novel mutations in the SEMA4A gene associated with retinal degenerative diseases.
Abid A.; Ismail M.; Mehdi S.Q.; Khaliq S.;
J. Med. Genet. 43:378-381(2006)
Cited for: VARIANTS RP35 HIS-345 AND CYS-350; VARIANTS CORD10 HIS-345 AND CYS-350; VARIANT GLN-713;

On variants and disease-causing mutations: Case studies of a SEMA4A variant identified in inherited blindness.
Bryant L.; Lozynska O.; Han G.; Morgan J.I.W.; Gai X.; Maguire A.M.; Aleman T.; Bennett J.;
Ophthalmic Genet. 39:144-146(2018)
Cited for: VARIANT GLN-713;

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.