UniProtKB/SwissProt variant VAR

Variant information

Variant position:

74

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

Type of variant:

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:

From Methionine (M) to Valine (V) at position 74 (M74V, p.Met74Val).

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:

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:

In PCC; does not repress MYC transcriptional activity.

Any additional useful information about the variant.

Sequence information

Variant position:

74

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

Protein sequence length:

160

The length of the canonical sequence.

Location on the sequence:

QGEKASRAQILDKATEYIQY M RRKNHTHQQDIDDLKRQNAL

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                         QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLKRQNAL

Mouse                         QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Rat                           QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Cat                           QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Chicken                       QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Xenopus laevis                QGEK-----ASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Zebrafish                     QGEKQSIKQASRAQILDKATEYIQYMRRKNHTHQQDIDDLK

Drosophila                    KGEK-----ASRAQILKKTTECIQTMRRKISENQKDIEEIK

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.

Type	Positions	Description
Chain	2 – 160	Protein max
Domain	23 – 74	bHLH
Modified residue	66 – 66	N6-acetyllysine
Alternative sequence	58 – 160	ASRAQILDKATEYIQYMRRKNHTHQQDIDDLKRQNALLEQQVRALEKARSSAQLQTNYPSSDNSLYTNAKGSTISAFDGGSDSSSESEPEEPQSRKKLRMEAS -> LYFLFWKLCTPVLHRQSLMQKCHTFISSYQVHKKKECKI. In isoform 5.
Alternative sequence	58 – 160	ASRAQILDKATEYIQYMRRKNHTHQQDIDDLKRQNALLEQQVRALEKARSSAQLQTNYPSSDNSLYTNAKGSTISAFDGGSDSSSESEPEEPQSRKKLRMEAS -> GTKMKLTLPPVFPYEHLPFPTVFCHG. In isoform 6.
Mutagenesis	66 – 66	K -> Q. Kept nuclear localization. Loss of nuclear localization; when associated with Q-153 and Q-154.
Mutagenesis	66 – 66	K -> R. Loss of acetylation, kept nuclear localization; when associated with R-153 and R-154.
Helix	60 – 100

Literature citations

MAX mutations cause hereditary and sporadic pheochromocytoma and paraganglioma.
Burnichon N.; Cascon A.; Schiavi F.; Morales N.P.; Comino-Mendez I.; Abermil N.; Inglada-Perez L.; de Cubas A.A.; Amar L.; Barontini M.; de Quiros S.B.; Bertherat J.; Bignon Y.J.; Blok M.J.; Bobisse S.; Borrego S.; Castellano M.; Chanson P.; Chiara M.D.; Corssmit E.P.; Giacche M.; de Krijger R.R.; Ercolino T.; Girerd X.; Gomez-Garcia E.B.; Gomez-Grana A.; Guilhem I.; Hes F.J.; Honrado E.; Korpershoek E.; Lenders J.W.; Leton R.; Mensenkamp A.R.; Merlo A.; Mori L.; Murat A.; Pierre P.; Plouin P.F.; Prodanov T.; Quesada-Charneco M.; Qin N.; Rapizzi E.; Raymond V.; Reisch N.; Roncador G.; Ruiz-Ferrer M.; Schillo F.; Stegmann A.P.; Suarez C.; Taschin E.; Timmers H.J.; Tops C.M.; Urioste M.; Beuschlein F.; Pacak K.; Mannelli M.; Dahia P.L.; Opocher G.; Eisenhofer G.; Gimenez-Roqueplo A.P.; Robledo M.;
Clin. Cancer Res. 18:2828-2837(2012)
Cited for: VARIANTS PCC LEU-9; TRP-25; 33-ARG--SER-160 DEL; CYS-35; 47-ARG--SER-52 DEL; TRP-60; SER-71; VAL-74; 75-ARG--SER-160 DEL; 82-GLN--SER-160 DEL; PRO-90 AND PRO-102;

Functional and in silico assessment of MAX variants of unknown significance.
Comino-Mendez I.; Leandro-Garcia L.J.; Montoya G.; Inglada-Perez L.; de Cubas A.A.; Curras-Freixes M.; Tysoe C.; Izatt L.; Leton R.; Gomez-Grana A.; Mancikova V.; Apellaniz-Ruiz M.; Mannelli M.; Schiavi F.; Favier J.; Gimenez-Roqueplo A.P.; Timmers H.J.; Roncador G.; Garcia J.F.; Rodriguez-Antona C.; Robledo M.; Cascon A.;
J. Mol. Med. 93:1247-1255(2015)
Cited for: VARIANTS PCC LEU-9; ASN-23; TRP-25; 33-ARG--SER-160 DEL; CYS-35; TRP-60; SER-71; VAL-74; PRO-90; PRO-94; PRO-102 AND PRO-102; CHARACTERIZATION OF VARIANTS PCC LEU-9; ASN-23; TRP-25; 33-ARG--SER-160 DEL; CYS-35; TRP-60; SER-71; VAL-74; PRO-90; PRO-94 AND PRO-102; FUNCTION; VARIANTS THR-114 AND LEU-142; CHARACTERIZATION OF VARIANTS THR-114 AND LEU-142;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P61244: Variant p.Met74Val