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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P01185: Variant p.Gly48Val

Vasopressin-neurophysin 2-copeptin
Gene: AVP
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Variant information Variant position: help 48 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 Glycine (G) to Valine (V) at position 48 (G48V, p.Gly48Val). 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 glycine (G) to medium size and hydrophobic (V) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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

Variant description: help In NDI. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 48 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 164 The length of the canonical sequence.
Location on the sequence: help GGKRAMSDLELRQCLPCGPG G KGRCFGPSICCADELGCFVG 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                         GGKRAMSDLELRQCLPCGPGGKGRCFGPSICCADELGCFVG

Mouse                         GGKRAISDMELRQCLPCGPGGKGRCFGPSICCADELGCFVG

Rat                           GGKRATSDMELRQCLPCGPGGKGRCFGPSICCADELGCFLG

Pig                           GGKRAMSDLELRQCLPCGPGGKGRCFGPSICCGDELGCFVG

Bovine                        GGKRAMSDLELRQCLPCGPGGKGRCFGPSICCGDELGCFVG

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
Chain 32 – 124 Neurophysin 2
Site 28 – 28 Important for agonist activity on V1aR/AVPR1A
Modified residue 28 – 28 Glycine amide
Disulfide bond 41 – 85
Disulfide bond 44 – 58
Mutagenesis 28 – 28 G -> V. Gain of antagonist activity on V1aR/AVPR1A (and loss of agonist activity on this receptor). 42-fold decrease in affinity for V1aR/AVPR1A, 2000-fold decrease in affinity for V1bR/AVPR1B, 5-fold decrease in affinity for V2R/AVPR2 and no change in affinity for oxytocin receptor (OXTR).



Literature citations
A missense mutation in the vasopressin-neurophysin precursor gene cosegregates with human autosomal dominant neurohypophyseal diabetes insipidus.
Bahnsen U.; Oosting P.; Swaab D.F.; Nahke P.; Richter D.; Schmale H.;
EMBO J. 11:19-23(1992)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANT NDI VAL-48;
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.