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UniProtKB/Swiss-Prot Q6P2Q9: Variant p.Pro874Leu

Pre-mRNA-processing-splicing factor 8
Gene: PRPF8
Variant information

Variant position:  874
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Polymorphism
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 Proline (P) to Leucine (L) at position 874 (P874L, p.Pro874Leu).
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:  -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

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



Sequence information

Variant position:  874
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  2335
The length of the canonical sequence.

Location on the sequence:   SRLNQSQREELGLIEQAYDN  P HEALSRIKRHLLTQRAFKEV
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                         SRLNQSQREELGLIEQAYDNPHEALSRIKRHLLTQRAFKEV

Mouse                         SRLNQSQREELGLIEQAYDNPHEALSRIKRHLLTQRAFKEV

Caenorhabditis elegans        NRLNQSQREELALIEQAYDNPHEALSRIKRHMLTQRAFKEV

Slime mold                    SRLNQSQREELSLVEQAYDNPHDALARIKRHLLTQRTFKEV

Baker's yeast                 VRLNASEREELALIEEAYDNPHDTLNRIKKYLLTQRVFKPV

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 2 – 2335 Pre-mRNA-processing-splicing factor 8
Region 812 – 1303 Reverse transcriptase homology domain
Modified residue 859 – 859 Phosphoserine
Helix 874 – 886


Literature citations

Human homologue of Saccharomyces cerevisiae PRP8, pre-mRNA splicing factor.
Shimada Y.; Fujiwara T.; Kawai A.; Shimizu F.; Okuno S.; Ozaki K.; Takeda S.; Watanabe T.; Nagata M.; Takahashi E.;
Cited for: NUCLEOTIDE SEQUENCE [MRNA]; VARIANTS 68-GLU; LEU-874 AND HIS-1293;

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.