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UniProtKB/Swiss-Prot P47712: Variant p.Val224Ile

Cytosolic phospholipase A2
Gene: PLA2G4A
Variant information

Variant position:  224
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 Isoleucine (I) at position 224 (V224I, p.Val224Ile).
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:  224
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  749
The length of the canonical sequence.

Location on the sequence:   GFSGVMKALYESGILDCATY  V AGLSGSTWYMSTLYSHPDFP
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                         GFSGVMKALYESGILDCATYVAGLSGSTWYMSTLYSHPDFP

Mouse                         GFSGVMKALYESGILDCATYIAGLSGSTWYMSTLYSHPDFP

Rat                           GFSGVMKALYESGILDCATYVAGLSGSTWYMSTLYSHPDFP

Bovine                        GFSGVMKALYESGILDCATYIAGLSGSTWYMSTLYSHPDFP

Rabbit                        GFSGVMKALYESGILDCATYIAGLSGSTWYMSTLYSHPDFP

Horse                         GFSGVMKALYESGILDCATYLAGLSGSSWYMSTLYSHPDFP

Chicken                       GFAGVMKALYESGVLDCATYIAGLSGSTWYMSTLYSHPDFP

Xenopus laevis                GFSGVMKALYESGVLDCATYVAGLSGSTWYMSTLYSHPDFP

Xenopus tropicalis            GFSGVMKALFESGVLDCVTYIAGLSGSTWYMSALYSHADFP

Zebrafish                     GFSGVMKALYESGVFDCATYVAGLSGSTWYMSMLYSHPEFP

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 1 – 749 Cytosolic phospholipase A2
Domain 140 – 740 PLA2c
Active site 228 – 228 Nucleophile
Mutagenesis 215 – 215 S -> A. No effect on phospholipase or lysophospholipase activity.
Mutagenesis 220 – 220 C -> A. No effect on phospholipase activity.
Mutagenesis 228 – 228 S -> ACT. Abolishes both phospholipase and lysophospholipase activities.
Beta strand 221 – 226


Literature citations

Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS ILE-224 AND LYS-651;

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.