PHYRE Protein Fold Recognition Server

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Protein Homology/analogY Recognition Engine V 2.2

Fold library entry viewer: d1q90b_

Fold library id	Fold	Superfamily	Family
d1q90b_	Heme-binding four-helical bundle	Transmembrane di-heme cytochromes	Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Links to external resources
Added to library: Tue Mar 16 13:27:52 2010

1 . . . . . . . . 10 . . . . . . . . . 20 . . . . . . . . . 30 . . . . . . . . . 40 . . . . . . . . . 50 . . . . . . . . . 60 . . . . . . . . . 70

Sequence V Y D W F E E R L E I Q A I A D D I T S K Y V P P H V N I F Y C I G G I T F T C F L V Q V A T G F A M T F Y Y R P T V A E A F A S V Q Y I M

Predicted secondary structure

SS confidence

Known secondary structure (DSSP)
T T
S G G G T T T
S T T T

. . . . . . . . . 80 . . . . . . . . . 90 . . . . . . . . . 100 . . . . . . . . . 110 . . . . . . . . . 120 . . . . . . . . . 130 . . . . . . . . . 140

Sequence T D V N F G W L I R S I H R W S A S M M V L M M V L H V F R V Y L T G G F K R P R E L T W V T G V I M A V C T V S F G V T G Y S L P W D Q V

Predicted secondary structure

SS confidence

Known secondary structure (DSSP) T S T T T T T T T S S S
T T

. . . . . . . . . 150 . . . . . . . . . 160 . . . . . . . . . 170 . . . . . . . . . 180 . . . . . . . . . 190 . . . . . . . . . 200 . . . . . . . . . 210

Sequence G Y W A V K I V T G V P D A I P G V G G F I V E L L R G G V G V G Q A T L T R F Y S L H T F V L P L L T A V F M L M H F L M I R K Q G I S G

Predicted secondary structure

SS confidence

Known secondary structure (DSSP) G G G G S T T T S S S S S T
S

. .

Sequence P L

Predicted secondary structure

SS confidence

Known secondary structure (DSSP)

Download: PDB structure FASTA sequence
Hidden Markov model

Image coloured by rainbow N → C terminus

Interactive 3D view in JSmol

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Accessibility Statement

Please cite: Phyre2.2: A Community Resource for Template-based Protein Structure Prediction

Powell HR et al. Journal of Molecular Biology (2025) in press DOI: https://doi.org/10.1016/j.jmb.2025.168960

© Structural Bioinformatics Group, Imperial College, London

Michael Sternberg

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Phyre2 is part of Genome3D

	1	.	.	.	.	.	.	.	.	10	.	.	.	.	.	.	.	.	.	20	.	.	.	.	.	.	.	.	.	30	.	.	.	.	.	.	.	.	.	40	.	.	.	.	.	.	.	.	.	50	.	.	.	.	.	.	.	.	.	60	.	.	.	.	.	.	.	.	.	70
Sequence	V	Y	D	W	F	E	E	R	L	E	I	Q	A	I	A	D	D	I	T	S	K	Y	V	P	P	H	V	N	I	F	Y	C	I	G	G	I	T	F	T	C	F	L	V	Q	V	A	T	G	F	A	M	T	F	Y	Y	R	P	T	V	A	E	A	F	A	S	V	Q	Y	I	M
Predicted secondary structure
SS confidence
Known secondary structure (DSSP)																									T	T			S	G	G	G																				T	T	T				S	T	T	T
	.	.	.	.	.	.	.	.	.	80	.	.	.	.	.	.	.	.	.	90	.	.	.	.	.	.	.	.	.	100	.	.	.	.	.	.	.	.	.	110	.	.	.	.	.	.	.	.	.	120	.	.	.	.	.	.	.	.	.	130	.	.	.	.	.	.	.	.	.	140
Sequence	T	D	V	N	F	G	W	L	I	R	S	I	H	R	W	S	A	S	M	M	V	L	M	M	V	L	H	V	F	R	V	Y	L	T	G	G	F	K	R	P	R	E	L	T	W	V	T	G	V	I	M	A	V	C	T	V	S	F	G	V	T	G	Y	S	L	P	W	D	Q	V
Predicted secondary structure
SS confidence
Known secondary structure (DSSP)		T	S	T	T																												T	T	T	T	T	S	S	S																									T	T
	.	.	.	.	.	.	.	.	.	150	.	.	.	.	.	.	.	.	.	160	.	.	.	.	.	.	.	.	.	170	.	.	.	.	.	.	.	.	.	180	.	.	.	.	.	.	.	.	.	190	.	.	.	.	.	.	.	.	.	200	.	.	.	.	.	.	.	.	.	210
Sequence	G	Y	W	A	V	K	I	V	T	G	V	P	D	A	I	P	G	V	G	G	F	I	V	E	L	L	R	G	G	V	G	V	G	Q	A	T	L	T	R	F	Y	S	L	H	T	F	V	L	P	L	L	T	A	V	F	M	L	M	H	F	L	M	I	R	K	Q	G	I	S	G
Predicted secondary structure
SS confidence
Known secondary structure (DSSP)											G	G	G	G	S	T	T											T	S	S	S	S	S													T																						S
	.	.
Sequence	P	L
Predicted secondary structure
SS confidence
Known secondary structure (DSSP)