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PROSITE entry PS50255


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General information about the entry

PURL [info] https://purl.expasy.org/prosite/signature/PS50255
Entry name [info] CYTOCHROME_B5_2
Accession [info] PS50255
Entry type [info] MATRIX
Date [info] 01-DEC-2001 CREATED;
07-APR-2021 DATA UPDATE;
29-MAY-2024 INFO UPDATE.
PROSITE Doc. [info] PDOC00170
Associated ProRule [info] PRU00279

Name and characterization of the entry

Description [info] Cytochrome b5 family, heme-binding domain profile.
Matrix / Profile [info]
/GENERAL_SPEC: ALPHABET='ABCDEFGHIKLMNPQRSTVWYZ'; LENGTH=77;
/DISJOINT: DEFINITION=PROTECT; N1=6; N2=72;
/NORMALIZATION: MODE=1; FUNCTION=LINEAR; R1=0.3604000; R2=0.0156478; TEXT='NScore';
/NORMALIZATION: MODE=-1; FUNCTION=LINEAR; R1=4612.1806641; R2=5.4457831; PRIORITY=1; TEXT='Heuristic 5.0%';
/CUT_OFF: LEVEL=0; SCORE=680; H_SCORE=8315; N_SCORE=11.0; MODE=1; TEXT='!';
/CUT_OFF: LEVEL=-1; SCORE=393; H_SCORE=6752; N_SCORE=6.5; MODE=1; TEXT='?';
/DEFAULT: D=-20; I=-20; B1=-50; E1=-50; MI=-105; MD=-105; IM=-105; DM=-105;
...
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Numerical results [info]

Numerical results for UniProtKB/Swiss-Prot release 2025_02 which contains 573'230 sequence entries.


Total number of hits 180 in 180 different sequences
Number of true positive hits 178 in 178 different sequences
Number of 'unknown' hits 0
Number of false positive hits 2 in 2 different sequences
Number of false negative sequences 38
Number of 'partial' sequences 2
Precision (true positives / (true positives + false positives)) 98.89 %
Recall (true positives / (true positives + false negatives)) 82.41 %

Comments [info]

Taxonomic range [info] Eukaryotes, Prokaryotes (Bacteria), Eukaryotic viruses
Maximum number of repetitions [info] 1
Matrix type [info] protein_domain
Scaling database [info] reversed
Author [info] K_Hofmann
Feature key [info] DOMAIN
Feature description [info] Cytochrome b5 heme-binding
Version [info] 6

Cross-references [info]

UniProtKB/Swiss-Prot
True positive sequences
178 sequences

ACET6_CERPU (Q9LEN0), ACO1_AJECA  (Q12618), ACO1_SCHPO  (O94523), 
» more

UniProtKB/Swiss-Prot
False negative sequences
38 sequences

CHS5B_FUSO4 (A0A0J9UR47), D5FAD_THRSP (Q8S3C1), DAP1_SCHPO  (O13995), 
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UniProtKB/Swiss-Prot
'Partial' sequences
2 sequences

NIA2_MAIZE  (P39871), NIA_LOTTE   (P39882)

		
UniProtKB/Swiss-Prot
False positive sequences
2 sequences

CHS4_CRYNH  (J9VF17), CHS5_CRYNH  (J9VNT4)

		
PDB
[Detailed view]
79 PDB

1AQA; 1AW3; 1AWP; 1AXX; 1B5A; 1B5B; 1B5M; 1BFX; 1BLV; 1CXY; 1CYO; 1DO9;
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