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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P36404: Variant p.Arg15Leu

ADP-ribosylation factor-like protein 2
Gene: ARL2
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Variant information Variant position: help 15 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 Arginine (R) to Leucine (L) at position 15 (R15L, p.Arg15Leu). 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 large size and basic (R) to medium size and hydrophobic (L) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -2 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 MRCS1; decreased interaction with UNC119; decreased interaction with ARL2BP; changed cellular respiration; decreased ATP production. Any additional useful information about the variant.


Sequence information Variant position: help 15 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 184 The length of the canonical sequence.
Location on the sequence: help MGLLTILKKMKQKE R ELRLLMLGLDNAGKTTILKK 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                         MGLLTILKKMKQKERELRLLMLGLDNAGKTTILKK

Mouse                         MGLLTILKKMKQKERELRLLMLGLDNAGKTTILKK

Rat                           MGLLTILKKMKQKERDVRLLMLGLDNAGKTTILKK

Bovine                        MGLLTILKKMKQKERELRLLMLGLDNAGKTTILKK

Caenorhabditis elegans        MGFLKILRKQRAREREMRILILGLDNAGKTTLMKK

Drosophila                    MGFLTVLKKMRQKEREMRILLLGLDNAGKTTILKR

Slime mold                    MGLLTVLKKLKQKEKELRILMLGLDNAGKTTILKK
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 – 184 ADP-ribosylation factor-like protein 2
Lipidation 2 – 2 N-myristoyl glycine
Mutagenesis 3 – 3 L -> A. Reduces interaction with ARL2BP.
Mutagenesis 3 – 3 L -> D. Reduces interaction with ARL2BP.
Mutagenesis 4 – 4 L -> A. Does not reduce interaction with ARL2BP.
Mutagenesis 4 – 4 L -> D. Reduces interaction with ARL2BP.
Mutagenesis 6 – 6 I -> R. Reduces interaction with ARL2BP.
Mutagenesis 7 – 7 L -> A. Does not reduce interaction with ARL2BP.
Mutagenesis 7 – 7 L -> D. Reduces interaction with ARL2BP.
Mutagenesis 30 – 30 T -> N. Does not inhibit the interaction with TBCD and rescues the TBCD-induced microtubule destruction. Reduces interaction with ARL2BP. Inhibits accumulation of STAT3 in the nucleus.



Literature citations
Whole-exome sequencing identified ARL2 as a novel candidate gene for MRCS (microcornea, rod-cone dystrophy, cataract, and posterior staphyloma) syndrome.
Cai X.B.; Wu K.C.; Zhang X.; Lv J.N.; Jin G.H.; Xiang L.; Chen J.; Huang X.F.; Pan D.; Lu B.; Lu F.; Qu J.; Jin Z.B.;
Clin. Genet. 96:61-71(2019)
Cited for: INVOLVEMENT IN MRCS1; VARIANT MRCS1 LEU-15; CHARACTERIZATION OF VARIANT MRCS1 LEU-15; FUNCTION; INTERACTION WITH UNC119; INTERACTION WITH ARL2BP; SUBCELLULAR LOCATION;
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.